Processing Forum

BufferedWriter doesn't work

[3 Replies]
- 29-Aug-2013 03:04 AM
- Forum: Contributed Library Questions
Dear all interested reader,

I'm trying to make an example I found on this forum work:
2. String ConsumerKey = "4oucztsQs3oMPPOD39Sg";
3. String ConsumerSecret = "I9USGJugckIZ4y1hFlq5lSJl6scsgbQgXiJEPM7v7zA";
4. String oauth_token = "79202117-nWKjs9tJyMVV4EgV4rYjd7ZPysEjP3bX5Cp8BvilE";
5. String oauth_token_secret = "jDzfeldXJwWNOR3XAcyssKgqYEM5hWHgbEdSMuZfs";
6. TwitterFactory tf;
8. String geoURL;
9. double lat;
10. double lon;
11. double res;
12. String resUnit;
14. import java.util.List;
18. void setup() { println("starting...");
19. println();
21. ConfigurationBuilder cb = new ConfigurationBuilder(); //ConfigurationBuilder declared cb is a new instance of this
22. cb.setDebugEnabled(true)
23. .setOAuthConsumerKey(ConsumerKey) //sets the Consumer Key String
24. .setOAuthConsumerSecret(ConsumerSecret) //sets the Consumer Secret String .setOAuthAccessToken(oauth_token)
25. .setOAuthAccessTokenSecret(oauth_token_secret);
26. tf = new TwitterFactory(cb.build());
27. }
29. void draw() {
31. println("entering void draw...");
35. // Date ddate = new Date();
37. java.util.Date ddate = new java.util.Date();
41. System.out.println(ddate + "\n"+ "\n");
43. // These values are from Milan and probably you'llhave to change them according to your position
44. lat = 45.49985;
45. lon = 9.191093;
46. res = 25;
47. resUnit="km";
48. try {
49. //FILE SAVE DATA (change the path from below)
50. String filename = "/twitterLog.csv";
51. boolean newFile=false;
52. File f = new File(filename);
53. if(!f.exists()){
54. println("creating file...");
55. f.createNewFile();
56. newFile=true;
57. println("new file "+ filename +" has been created " + newFile);
58. }else{
59. println("opening the existing file..." + filename);
60. }
61. BufferedWriter writer = new BufferedWriter(new FileWriter(f, true));
62. //
63. if (newFile == true){
64. writer.write("day,month,hour,min,sec,user,longitude,latitude,\n");
65. writer.flush();
66. }
68. int count = 0;
69. try {
70. // this value below is about 3 hours of running time
71. while (count!=1000) {
72. Twitter twitter = tf.getInstance();
74. try {
76. //TWITTER DATA
77. Query query = new Query().geoCode(new GeoLocation(lat,lon), res, resUnit);
78. query.rpp(100);
79. QueryResult result = twitter.search(query);
80. List <Tweet> tweets = result.getTweets();
82. for (int i=0; i < tweets.size(); i++) {
83. Tweet tweet = (Tweet)tweets.get(i);
85. if (tweet.getGeoLocation()!= null){
86. println("Found!");
87. GeoLocation loc=tweet.getGeoLocation();
89. //Transorming variables
90. String myLon = Double.toString(loc.getLongitude());
91. String myLat = Double.toString(loc.getLatitude());
93. String user = tweet.getFromUser();
94. Date date = tweet.getCreatedAt();
96. // Splitting the date in day-month-hour-min-sec
97. DateFormat format = new SimpleDateFormat("dd/MM/yyyy");
98. DateFormat ObjMonth = new SimpleDateFormat("MM");
99. String MyMonth = ObjMonth.format(date);
100. DateFormat ObjDay = new SimpleDateFormat("dd");
101. String MyDay = ObjDay.format(date);
102. DateFormat ObjHour = new SimpleDateFormat("kk");
103. String MyHour = ObjHour.format(date);
104. DateFormat ObjMin = new SimpleDateFormat("mm");
105. String MyMin = ObjMin.format(date);
106. DateFormat ObjSec = new SimpleDateFormat("ss");
107. String MySec = ObjSec.format(date);
109. String[] data = new String[8];
110. data[0] = MyDay; data[1] = MyMonth; data[2] = MyHour; data[3] = MyMin; data[4] = MySec; data[5] =
111. user; data[6] = myLon; data[7] = myLat;
112. //this if case will fill the array just if the search is null
113. if (data[0] ==null){
114. data[0] = "24"; data[1] = "05"; data[2] = "17"; data[3] = "19"; data[4] = "55"; data[5] = "ikkio"; data[6] =
115. "9.2033"; data[7] = "45.4853";
116. }
118. for (int k=0; k < data.length; k++) {
119. writer.write(data[k] + ",");
120. }
122. writer.write("\n");
123. writer.write("\n");
124. writer.flush();
126. //println("Created at: " + MyDay +"-"+ MyMonth +" at: "+ MyHour +"-"+ MyMin +"-"+ MySec + " @" + user + ": longitude: "+ myLon + " latitude: "+ myLat );
128. }
129. }
131. println("--");
132. println("sleeping...");
133. println("--");
134. println("Count: "+ count);
135. println();
137. println();
139. count +=1;
140. Thread.sleep(10400);
142. } catch (TwitterException te) {
143. te.printStackTrace();
144. println("TWITTER ERROR, Failed to search tweets: " + te.getMessage());
145. exit();
146. }
148. }
149. //exit WHILE (COUNT o TRUE)
150. writer.close();
151. exit();
153. } catch (InterruptedException e) {
155. e.printStackTrace();
156. }
157. } catch (IOException ioe) {
158. println("IO/ERROR: " + ioe);
159. }
160. }
The function that doesn't work in Processing 2.0 is the BufferedWriter. How can I update my code so that it works?

I allready updated this line myself:
// Date ddate = new Date();
java.util.Date ddate = new java.util.Date();
Date ddate = new Date(); wasn't working. I guess I need to do something simular with the Writer, but I cant find out how.

Hope that someone can help me with this.

Thanks in advance.

Joshua

Wikipedia search, problem with re-searching the first results

[7 Replies]
- 09-Aug-2013 04:38 PM
- Forum: Programming Questions
Dear all readers,

I'm currently working on a tool that looks up related topics with the Wikipedia API.

The idea:

Search for one topic to get back related topics. Then these related topics should also be used in a new search. These words should also send back their related topics.

The next code does only the first part (getting all the results for one keyword):
4. XML myXML;
5. XML[] links;
7. String keyword = "anders";
9. String query;
11. String search1;
12. String search2;
16. XML myXML2;
17. XML[] links2;
23. void setup() {
25. }
28. void draw() {
30. query = "http://nl.wikipedia.org/w/api.php?titles="+keyword+"&format=xml&action=query&prop=links&pllimit=500";
32. try {
33. myXML = loadXML(query);
34. links = myXML.getChildren("query/pages/page/links/pl");
36. for (int i = 0; i < links.length; i++) {
37. String title = links[i].getString("title");
39. search1 = search1+","+title;
42. }
43. }
44. catch (Exception exception) {
45. println(exception);
46. }
48. println(search1);
50. noLoop();
52. }
This code should get the result of the first word, and then uses the results to search again, so every result of the first search should be a keyword to get results from.
4. XML myXML;
5. XML[] links;
7. String keyword = "anders";
9. String query;
11. String search1;
12. String search2;
16. XML myXML2;
17. XML[] links2;
23. void setup() {
25. }
28. void draw() {
30. query = "http://nl.wikipedia.org/w/api.php?titles="+keyword+"&format=xml&action=query&prop=links&pllimit=500";
32. try {
33. myXML = loadXML(query);
34. links = myXML.getChildren("query/pages/page/links/pl");
36. for (int i = 0; i < links.length; i++) {
37. String title = links[i].getString("title");
39. search1 = search1+","+title;
42. }
43. }
44. catch (Exception exception) {
45. println(exception);
46. }
49. String[] search1_results = split(search1, ',');
54. for (int i = 0; i < search1_results.length; i++) {
57. query = "http://nl.wikipedia.org/w/api.php?titles="+search1_results[i]+"&format=xml&action=query&prop=links&pllimit=500";
59. myXML2 = loadXML(query);
60. links = myXML.getChildren("query/pages/page/links/pl");
62. for (int i2 = 0; i2 < links.length; i2++) {
64. String title = links[i2].getString("title");
67. search2 = search1+","+title;
69. }
70. }
74. println(search1);
78. }
The code above, however, is not working. I can't see what I'm doing wrong at this point. Hope you can help me out with this code.

Best,

Joshua

Visualization of Eartquakes

[0 Replies]
- 02-Aug-2013 03:12 AM
- Forum: Share your Work
Dear all interested readers,

For the last weeks, I've been experimenting with visualizing geographical events like sunshine, temperature and earthquakes.

Just finished a video of a tool I wrote to visualize all the earthquakes through the years in 3d, using only color and height to show the magnitude of the earthquakes. The lined square represents the earth surface.

Hope you will enjoy the results in the shape of a video and images.

- Vimeo -

https://vimeo.com/71545739

- 2d overview, all years -

- 3d overview, all years -

ProcessingJS export, csv data won't load.

[3 Replies]
- 29-Jul-2013 05:24 AM
- Forum: Processing with Other Languages
Dear all,

Today I wanted to export my GPS reader to JAVASCRIPT + HTML, for placing it online. When I export to HTML with 2.0 stable version, the html doesn't load the sketch.

I know it has something to do with: " locationTable = new Table("gps.csv"); ", but I cannot load the csv before the setup.

Who has experience with this?

Hope you can help me out a bit.

here's the whole sketch including the csv:

http://we.tl/wsCOVgTDrr
2. float mapGeoTop = 59; //LAT
3. float mapGeoBottom = 55; // lAT
4. float mapGeoLeft = 10; //LON
5. float mapGeoRight = 0; //LON
7. int counter;
8. int counter2;
10. int mapScreenWidth = width;
11. int mapScreenHeight = height;
13. Table locationTable;
14. int rowCount;
17. PFont font;
20. void setup() {
21. size(1000, 800, P3D);
22. font = createFont("Georgia", 24);
23. textFont(font, 24);
24. locationTable = new Table("gps.csv"); // or .csv
26. rowCount = locationTable.getRowCount();
28. mapScreenWidth = width;
29. mapScreenHeight = height;
30. smooth();
31. }
34. void draw() {
36. background(255);
37. noStroke();
39. counter2 = counter2+1;
41. if(counter2 == 10){
42. if(counter<rowCount){
43. counter = counter+1;
44. }
46. counter2 = 0;
47. }
52. beginShape();
54. for (int row = 0; row < rowCount; row++) {
56. float x = (locationTable.getFloat(row, 1));
57. float y = (locationTable.getFloat(row, 0));
59. // float x = map(locationTable.getFloat(row, 0), mapGeoRight, mapGeoLeft, 0, width);
60. // float y = map(locationTable.getFloat(row, 1), mapGeoTop, mapGeoBottom, 0, height);
62. PVector p = geoToPixel(new PVector(x, y));
63. //text( locationTable.getString(row, 1), p.x+4,p.y+4);
65. fill(0,locationTable.getFloat(row, 0));
66. ellipse(p.x, p.y, locationTable.getFloat(row, 2)/2.5, locationTable.getFloat(row, 2)/2.5);
67. fill(255);
68. ellipse(p.x, p.y, 16, 16);
70. fill(0);
71. ellipse(p.x, p.y, 12, 12);
72. fill(255);
73. ellipse(p.x, p.y, 8, 8);
74. fill(0);
75. ellipse(p.x, p.y, 4, 4);
76. noFill();
77. float t = map(mouseX, 0, width, -5, 5);
78. // curveTightness(t);
79. // curveVertex(p.x, p.y);
80. }
81. endShape();
86. }
90. // =========================================================================
93. class Table {
94. int rowCount;
95. String[][] data;
96. Table(String filename) {
97. String[] rows = loadStrings(filename);
98. data = new String[rows.length][];
99. for (int i = 0; i < rows.length; i++) {
100. if (trim(rows[i]).length() == 0) {
101. continue; // skip empty rows
102. }
103. if (rows[i].startsWith("#")) {
104. continue; // skip comment lines
105. }
106. // split the row on the tabs
107. String[] pieces = split(rows[i], ',');
108. // copy to the table array
109. data[rowCount] = pieces;
110. rowCount++;
111. // this could be done in one fell swoop via:
112. //data[rowCount++] = split(rows[i], TAB);
113. }
114. // resize the 'data' array as necessary
115. data = (String[][]) subset(data, 0, rowCount);
116. }
117. int getRowCount() {
118. return rowCount;
119. }
120. // find a row by its name, returns -1 if no row found
121. int getRowIndex(String name) {
122. for (int i = 0; i < rowCount; i++) {
123. if (data[i][0].equals(name)) {
124. return i;
125. }
126. }
127. println("No row named '" + name + "' was found");
128. return -1;
129. }
130. String getRowName(int row) {
131. return getString(row, 0);
132. }
133. String getString(int rowIndex, int column) {
134. return data[rowIndex][column];
135. }
136. String getString(String rowName, int column) {
137. return getString(getRowIndex(rowName), column);
138. }
139. int getInt(String rowName, int column) {
140. return parseInt(getString(rowName, column));
141. }
142. int getInt(int rowIndex, int column) {
143. return parseInt(getString(rowIndex, column));
144. }
145. float getFloat(String rowName, int column) {
146. return parseFloat(getString(rowName, column));
147. }
148. float getFloat(int rowIndex, int column) {
149. return parseFloat(getString(rowIndex, column));
150. }
151. void setRowName(int row, String what) {
152. data[row][0] = what;
153. }
154. void setString(int rowIndex, int column, String what) {
155. data[rowIndex][column] = what;
156. }
157. void setString(String rowName, int column, String what) {
158. int rowIndex = getRowIndex(rowName);
159. data[rowIndex][column] = what;
160. }
161. void setInt(int rowIndex, int column, int what) {
162. data[rowIndex][column] = str(what);
163. }
164. void setInt(String rowName, int column, int what) {
165. int rowIndex = getRowIndex(rowName);
166. data[rowIndex][column] = str(what);
167. }
168. void setFloat(int rowIndex, int column, float what) {
169. data[rowIndex][column] = str(what);
170. }
171. void setFloat(String rowName, int column, float what) {
172. int rowIndex = getRowIndex(rowName);
173. data[rowIndex][column] = str(what);
174. }
175. }
179. public PVector geoToPixel(PVector geoLocation)
180. {
181. return new PVector(mapScreenWidth*(geoLocation.x-mapGeoLeft)/
182. (mapGeoRight-mapGeoLeft), mapScreenHeight -
183. mapScreenHeight*(geoLocation.y-mapGeoBottom)
184. /(mapGeoTop-mapGeoBottom));
185. }
Kind regards,

Joshua

polygon slices to 3d sculpture.

[11 Replies]
- 19-Jul-2013 02:19 PM
- Forum: Programming Questions
Dear all interested readers,

I've been working on a sketch to visualise the air temperatures in the Netherlands of the last 106 years.

What I'm trying to do is find a way to take all the years as slices for a 3d sculpture.

Here's a rough sketch of the idea:

I'm using this data:

http://witregel.nl/NL.csv

This is the sketch I'm using to visualise the temperatures for every year:
2. float tw;
6. String[] data_in;
8. float[][] temps;
9. float[] gemiddelden;
10. float[] year_gemiddelden;
11. float timeseries_average;
12. int aantaljaren = 10;
13. float tempscale = 300.0;
14. float yearscale = 20.0;
15. float yearGraphY = 560;
16. int selYear = 0;
17. int firstYear;
18. PFont font;
19. String[] monthnames = {
20. "jan", "feb", "mar", "apr", "mei", "jun", "jul", "aug", "sept", "okt", "nov", "dec"
21. };
23. void setup() {
24. size(800, 650);
25. data_in = loadStrings("NL.csv");//"CBR1939_2009.csv");
27. aantaljaren = data_in.length;
28. temps = new float[aantaljaren][12];
29. gemiddelden = new float[12];
30. year_gemiddelden = new float[aantaljaren];
31. parseData();
32. font = createFont("Arial", 36);
33. smooth();
34. }
36. void draw() {
37. background(0);
39. textFont(font, 14);
40. fill(255, 255);
41. textAlign(CENTER);
43. float yearX = 50+((700.0*selYear)/aantaljaren);
45. String jaartal = ""+firstYear;
47. noStroke();
48. tw = textWidth(jaartal);
50. fill(0, 0, 250);
51. rect(yearX-17, height-20, tw+4, 19);
52. fill(255);
55. text(selYear+firstYear, yearX, height-6);
57. text(nf(year_gemiddelden[selYear], 1, 1)+"°", yearX, yearGraphY-50);
59. stroke(255, 100);
61. line(yearX, yearGraphY-40, yearX, yearGraphY+50);
63. drawYears(yearGraphY);
64. translate(400, 250);
65. stroke(200);
66. fill(100);
67. monthLabels();
68. noFill();
70. for (int y=0; y<aantaljaren; y++) {
71. stroke(255, 10);
72. // drawMonths(temps[y]);
73. }
75. strokeWeight(2);
76. stroke(0, 0, 255);
77. // drawMonths(gemiddelden);
79. // temp_puur(temps[selYear]);
81. strokeWeight(1);
82. stroke(255, 255);
83. drawMonths(temps[selYear]);
84. }
90. void drawMonths(float[] months) {
91. beginShape();
93. for (int m=0; m<12; m++) {
94. float theta = (TWO_PI/12.0)*m - HALF_PI;
95. float temp = (months[m]*tempscale);
96. // voor gemiddelden
97. float diff = 150 + (mouseX/30*(months[m] - gemiddelden[m]));
98. // voor werkelijke stand, zonder gemiddeldenberekeking
99. // float diff = 150 + (mouseX/30*(months[m] ));
100. vertex(cos(theta)*diff, sin(theta)*diff);
101. }
102. endShape(CLOSE);
103. }
108. void monthLabels() {
109. textFont(font, 12);
110. beginShape();
112. for (int m=0; m<12; m++) {
113. float theta = (TWO_PI/12.0)*m - HALF_PI;
114. text(monthnames[m], cos(theta)*200, sin(theta)*200);
115. noFill();
116. strokeWeight(1);
117. stroke(255, 0, 0, 255);
118. //vertex(cos(theta)*150, sin(theta)*150);
119. }
120. endShape(CLOSE);
121. }
124. void drawYears(float ybase) {
125. stroke(255);
126. noFill();
127. beginShape();
128. for (int y=0; y<aantaljaren; y++) {
129. vertex(50+(y*(700.0/aantaljaren)), ybase-((year_gemiddelden[y]-timeseries_average)*yearscale));
130. }
131. endShape();
132. stroke(255, 0, 0, 100);
133. line(50, ybase, 750, ybase);
134. }
137. void parseData() {
138. println(data_in.length);
139. for (int i=0; i<data_in.length; i++) {
140. String[] row = split(data_in[i], ',');
141. if (i == 0) firstYear = int(row[0]);
142. float[] flrow = float(row);
143. float[] trimrow = subset(flrow, 1);
144. temps[i] = trimrow;
146. for (int j=0; j<12; j++) {
147. if (i>(1907-firstYear) && i<(2013-firstYear)) gemiddelden[j] += temps[i][j]; // make the average 1961-1990
148. }
150. year_gemiddelden[i] = aveArray(temps[i]);
151. }
152. for (int j=0; j<12; j++) {
153. gemiddelden[j] = gemiddelden[j]/data_in.length;//(data_in.length-1);
154. }
155. // float[] twentyyear = subset(year_gemiddelden,1961-firstYear,1990-firstYear);
156. timeseries_average = aveArray(gemiddelden);//year_gemiddelden);
157. }
160. void keyPressed() {
161. if (keyCode == RIGHT) {
162. selYear = min (aantaljaren-1, selYear+1);
163. }
164. else if (keyCode == LEFT) {
165. selYear = max (0, selYear-1);
166. }
167. }
170. float aveArray(float[] A) {
171. float ave = 0;
172. for (int i=0; i<A.length; i++) {
173. ave += A[i];
174. }
175. ave = ave/A.length;
176. return ave;
177. }
On line 93, the part for the drawing of the polygons start. I know that I can, in P3D mode, can add an extra coordinate to make it 3d:
1. 2d: vertex(cos(theta)*diff, sin(theta)*diff);
2. 3d: vertex(cos(theta)*diff, sin(theta)*diff, 100);
But I don't know where to start. Because after drawing one year/slice, the next one needs to be drawn as well as the walls of the shape. Can someone help me by showing an example?

Thanks in advance.

Change speed of particles

[4 Replies]
- 29-Jun-2013 09:01 AM
- Forum: Contributed Library Questions
Dear all interested readers,

I've been working on an example from onformative ( http://www.onformative.com/lab/google-weather-library-for-processing/) to visualise weather data.

Now I want to use the particles, as shown in example, to have the speed based on the getWindSpeed() function. If the windspeed is 20.19, I would like to have to move the particles 20.19/4 in the right direction, already given in the code
2. import com.onformative.yahooweather.*;
4. YahooWeather weather;
5. YahooWeather weather2;
7. int updateIntervallMillis = 90000;
9. PVector[] windParticles = new PVector[200];
10. PVector[] windParticles2 = new PVector[200];
12. void setup() {
13. size(400, 400);
14. // BERLIJN weather = new YahooWeather(this, 638242, "c", updateIntervallMillis);
16. // AMSTERDAM
17. weather = new YahooWeather(this, 727232, "c", updateIntervallMillis);
19. weather2 = new YahooWeather(this, 638242, "c", updateIntervallMillis);
21. for (int i=0; i<windParticles.length; i++) {
22. windParticles[i] = new PVector(random(0, width/2), random(height));
23. }
25. for (int i=0; i<windParticles2.length; i++) {
26. windParticles2[i] = new PVector(random(width/2, width), random(height));
27. }
29. noStroke();
30. }
32. void draw() {
33. weather.update();
34. background(0);
35. fill(255, 0, 0);
36. drawWind();
38. text("Stad: "+weather.getCityName(), 10, 20);
39. text("Weertype: "+weather.getWeatherCondition(), 10, 40);
40. text("Windrichting: "+weather.getWindDirection(), 10, 60);
41. text("Windsnelheid: "+weather.getWindSpeed()+"km/h", 10, 80);
43. text("Windtemperatuur: "+weather.getWindTemperature(), 10, 100);
44. text("Temperatuur: "+weather.getTemperature(), 10, 120);
46. fill(0, 255, 0);
48. drawWind2();
50. translate(0, 150);
52. text("Stad: "+weather2.getCityName(), 10, 20);
53. text("Weertype: "+weather2.getWeatherCondition(), 10, 40);
54. text("Windrichting: "+weather2.getWindDirection(), 10, 60);
55. text("Windsnelheid: "+weather2.getWindSpeed()+"km/h", 10, 80);
56. text("Temperatuur: "+weather2.getTemperature(), 10, 120);
57. text("Windtemperatuur: "+weather2.getWindTemperature(), 10, 100);
58. }
60. void drawWind() {
63. float windtemp = int(weather2.getWindTemperature());
64. println(windtemp);
65. float size = windtemp/2;
66. for (int i=0; i<windParticles.length; i++) {
67. windParticles[i].add(getNormalizedPVector(weather.getWindDirection()));
68. if (windParticles[i].x<0)windParticles[i].x=width/2;
69. if (windParticles[i].x>width/2)windParticles[i].x=0;
70. if (windParticles[i].y<0)windParticles[i].y=height;
71. if (windParticles[i].y>height)windParticles[i].y=0;
72. ellipse(windParticles[i].x, windParticles[i].y, size, size);
73. }
74. }
77. void drawWind2() {
79. float windtemp = int(weather.getWindTemperature());
80. println(windtemp);
81. float size = windtemp/2;
82. for (int i=0; i<windParticles2.length; i++) {
83. windParticles2[i].add(getNormalizedPVector(weather2.getWindDirection()));
84. if (windParticles2[i].x<width/2)windParticles2[i].x=width;
85. if (windParticles2[i].x>width)windParticles2[i].x=width/2;
86. if (windParticles2[i].y<0)windParticles2[i].y=height;
87. if (windParticles2[i].y>height)windParticles2[i].y=0;
90. ellipse(windParticles2[i].x, windParticles2[i].y, size, size);
91. }
92. }
94. /**
95. * transforming the wind direction of yahoo into a normalizes vector
96. */
97. PVector getNormalizedPVector(int direction) {
98. int numPoints = 360;
99. float angle = TWO_PI/(float)numPoints;
100. direction = 360-direction;
101. direction += 180;
102. return new PVector(sin(angle*direction), cos(angle*direction));
103. }
I hope someone can help me with this. I'm new with using vectors.

Thanks in advance,

Joshua

Rotating text round a hexagon

[4 Replies]
- 19-Apr-2013 11:04 AM
- Forum: Programming Questions
Dear all interested readers,

I'm trying to make a rotating hexagon with text on every corner. The text should be rotated so that it looks like the text are connected to the centre. I'll visualise it in the next picture:

The code I have now draws the text, but I really don't now how to rote the words as shown above. I've been trying RotateZ with push and popmatrix, but this doesn't work out the way it needs.
1. String tekst = "Boston Bomber";
  String bronnen = "Source";
  
  int een, twee, drie, vier, vijf, zes;
  
  String input;
  
  import processing.opengl.*;
  
  PFont font;
  int hoekje;
  int getal = 2;
  
  boolean hoek = false;
  PGraphics pg;
  
  void setup() {
  
  size(1300, 800, OPENGL);
  fill(100);
  
  pg = createGraphics(width, 100);
  font = createFont("Arial", 300);
  
  // noCursor();
  textSize(20);
  noStroke();
  }
  
  void draw() {
  
  background(0);
  //lights();
  
  pg.background(0, 0);
  
  pg.beginDraw();
  pg.textFont(font, 30);
  textFont(font, 30);
  
  float sw = textWidth(tekst);
  
  pg.fill(0, 0, 255);
  pg.rect(0, 28, sw+20, 38);
  pg.fill(255);
  pg.text(tekst, 0, 55);
  
  if (bronnen.indexOf("vk")>=0)
  {
      bronnen = "volkskrant";
  }
  pg.text(bronnen, 0, 100);
  
  pg.endDraw();
  
  // image(pg, 0, 0);
  
  pushMatrix();
  translate(width/2, height/2);
  
  float a = map(hoekje, 0, height, 0, PI/2);
  rotateX(a);
  rotateZ(-frameCount/120.0);
  
  // axis();
  // pyramid(60);
  
  polygon(6, 0, 0, 350);
  text(6, 0, 0, 350);
  zijden(6, 0, 0, 350);
  
  if (hoekje <680 && hoek == false) {
  
      hoekje = hoekje+1;
  }
  else {
  
      hoek = true;
      hoekje = hoekje-1;
  
      if (hoekje <680 ) {
  
        hoekje = hoekje+1;
        hoek = false;
      }
  }
  popMatrix();
  
  image(pg, 0, 0);
  }
  
  void text(int n, float cx, float cy, float r)
  {
  float angle = 360.0 / n;
  stroke(0);
  strokeWeight(3);
  beginShape();
  fill(255);
  
  for (int i2 = 0; i2 < n; i2++)
  {
      stroke(0, 0, 255);
      if (i2 == 0) {
        //   fill(0,255,0);
        line( cx + r * cos(radians(angle * i2)), cy + r * sin(radians(angle * i2)), 0, cx + r * cos(radians(angle * i2)), cy + r * sin(radians(angle * i2)), zes); // z in blue
        noStroke();
  
        text("economie", cx + r * cos(radians(angle * i2)), cy + r * sin(radians(angle * i2)), 0);
  
      }
  
      if (i2 == 1) {
        line( cx + r * cos(radians(angle * i2)), cy + r * sin(radians(angle * i2)), 0, cx + r * cos(radians(angle * i2)), cy + r * sin(radians(angle * i2)), een); // z in blue
        //   fill(0,255,0);
        noStroke();
        pushMatrix();
  
        text("wetenschap", cx + r * cos(radians(angle * i2)), cy + r * sin(radians(angle * i2))+10, 0);
        popMatrix();
  
  }
  
      if (i2 == 2) {
        //   fill(0,255,0);
        line( cx + r * cos(radians(angle * i2)), cy + r * sin(radians(angle * i2)), 0, cx + r * cos(radians(angle * i2)), cy + r * sin(radians(angle * i2)), twee); // z in blue
        noStroke();
  
  
        text("politiek", cx + r * cos(radians(angle * i2))-100, cy + r * sin(radians(angle * i2))+10, 0);
  
  
  }
  
      if (i2 == 3) {
        //   fill(0,255,0);
        line( cx + r * cos(radians(angle * i2)), cy + r * sin(radians(angle * i2)), 0, cx + r * cos(radians(angle * i2)), cy + r * sin(radians(angle * i2)), drie); // z in blue
        noStroke();
  
        text("sport", cx + r * cos(radians(angle * i2))-100, cy + r * sin(radians(angle * i2))+10, 0);
      }
  
      if (i2 == 4) {
        //   fill(0,255,0);
        line( cx + r * cos(radians(angle * i2)), cy + r * sin(radians(angle * i2)), 0, cx + r * cos(radians(angle * i2)), cy + r * sin(radians(angle * i2)), vier); // z in blue
        noStroke();
  
        text("conflict", cx + r * cos(radians(angle * i2))-150, cy + r * sin(radians(angle * i2))+10, 0);
      }
  
      if (i2 == 5) {
        //   fill(0,255,0);
        line( cx + r * cos(radians(angle * i2)), cy + r * sin(radians(angle * i2)), 0, cx + r * cos(radians(angle * i2)), cy + r * sin(radians(angle * i2)), vijf); // z in blue
        noStroke();
  
        text("cultuur", cx + r * cos(radians(angle * i2)), cy + r * sin(radians(angle * i2))+10, 0);
      }
  }
  }
  
  //noStroke();
  
  void polygon(int n, float cx, float cy, float r)
  {
  float angle = 360.0 / n;
  stroke(0);
  strokeWeight(3);
  beginShape();
  
  for (int i = 0; i < n; i++)
  {
  
      if (i == 1) {
        fill(0, 0, 255, 255);
        vertex(cx + r * cos(radians(angle * i)),
        cy + r * sin(radians(angle * i)), een);
      }
  
      if (i == 2) {
        fill(0, 0, 255);
  
        vertex(cx + r * cos(radians(angle * i)),
        cy + r * sin(radians(angle * i)), twee);
      }
      if (i == 3) {
        fill(0, 0, 255);
  
        vertex(cx + r * cos(radians(angle * i)),
        cy + r * sin(radians(angle * i)), drie);
      }
      if (i == 4) {
  
        fill(0, 0, 255);
  
        vertex(cx + r * cos(radians(angle * i)),
        cy + r * sin(radians(angle * i)), vier);
      }
      if (i == 5) {
  
        fill(0, 0, 255);
  
        vertex(cx + r * cos(radians(angle * i)),
        cy + r * sin(radians(angle * i)), vijf);
      }
      if (i == 0) {
  
        fill(0, 0, 255);
  
        vertex(cx + r * cos(radians(angle * i)),
        cy + r * sin(radians(angle * i)), zes);
      }
  }
  endShape(CLOSE);
  
  //noStroke();
  }
  
  void zijden(int n, float cx, float cy, float r)
  {
  float angle = 360.0 / 6;
  stroke(0);
  strokeWeight(3);
  fill(255);
  beginShape();
  
  vertex(cx + r * cos(radians(angle * 1)),
  cy + r * sin(radians(angle * 1)), een);
  
  vertex(cx + r * cos(radians(angle * 2)),
  cy + r * sin(radians(angle * 2)), twee);
  
  vertex(cx + r * cos(radians(angle * 2)),
  cy + r * sin(radians(angle * 2)), 0);
  
  vertex(cx + r * cos(radians(angle * 1)),
  cy + r * sin(radians(angle * 1)), 0);
  
  endShape(CLOSE);
  
  beginShape();
  
  vertex(cx + r * cos(radians(angle * 2)),
  cy + r * sin(radians(angle * 2)), twee);
  
  vertex(cx + r * cos(radians(angle * 3)),
  cy + r * sin(radians(angle * 3)), drie);
  
  vertex(cx + r * cos(radians(angle * 3)),
  cy + r * sin(radians(angle * 3)), 0);
  
  vertex(cx + r * cos(radians(angle * 2)),
  cy + r * sin(radians(angle * 2)), 0);
  endShape(CLOSE);
  
  beginShape();
  
  vertex(cx + r * cos(radians(angle * 3)),
  cy + r * sin(radians(angle * 3)), drie);
  
  vertex(cx + r * cos(radians(angle * 4)),
  cy + r * sin(radians(angle * 4)), vier);
  
  vertex(cx + r * cos(radians(angle * 4)),
  cy + r * sin(radians(angle * 4)), 0);
  
  vertex(cx + r * cos(radians(angle * 3)),
  cy + r * sin(radians(angle * 3)), 0);
  endShape(CLOSE);
  
  beginShape();
  
  vertex(cx + r * cos(radians(angle * 4)),
  cy + r * sin(radians(angle * 4)), vier);
  
  vertex(cx + r * cos(radians(angle * 5)),
  cy + r * sin(radians(angle * 5)), vijf);
  
  vertex(cx + r * cos(radians(angle * 5)),
  cy + r * sin(radians(angle * 5)), 0);
  
  vertex(cx + r * cos(radians(angle * 4)),
  cy + r * sin(radians(angle * 4)), 0);
  endShape(CLOSE);
  
  beginShape();
  
  vertex(cx + r * cos(radians(angle * 5)),
  cy + r * sin(radians(angle * 5)), vijf);
  
  vertex(cx + r * cos(radians(angle * 6)),
  cy + r * sin(radians(angle * 6)), zes);
  
  vertex(cx + r * cos(radians(angle * 6)),
  cy + r * sin(radians(angle * 6)), 0);
  
  vertex(cx + r * cos(radians(angle * 5)),
  cy + r * sin(radians(angle * 5)), 0);
  
  endShape(CLOSE);
  
  beginShape();
  
  vertex(cx + r * cos(radians(angle * 6)),
  cy + r * sin(radians(angle * 6)), zes);
  
  vertex(cx + r * cos(radians(angle * 1)),
  cy + r * sin(radians(angle * 1)), een);
  
  vertex(cx + r * cos(radians(angle * 1)),
  cy + r * sin(radians(angle * 1)), 0);
  
  vertex(cx + r * cos(radians(angle * 6)),
  cy + r * sin(radians(angle * 6)), 0);
  
  endShape(CLOSE);
  
  //noStroke();
  }
Hope that someone can help me with this problem. Thanks in advance.

connect dots

[7 Replies]
- 21-Jan-2013 07:48 AM
- Forum: Programming Questions
Dear all interested readers,

I'm currently making a sketch to draw your own galaxy's and connect the planets and stars. I was able to hack together the next sketch that draws what I have in mind;
1. ArrayList<CircleSet> allCircles; // holds all circleSets
  int maxDistance = 100; //max distance between circles when drawing lines
  
  void setup()
  {
  size(1024, 768); //size of window
  smooth(); //draw circles with anti-aliased edge
  
  allCircles = new ArrayList<CircleSet>();
  }
  
  void mousePressed()
  {
  
  allCircles.add(new CircleSet());
  }
  
  void draw()
  {
  background(0, 0, 25);
  
  if (allCircles.size()>3) {
      allCircles.remove(0);
  }
  // update all circleSets
  for (int i=0; i< allCircles.size(); i++)
  {
      allCircles.get(i).update();
  }
  // display all circleSets
  for (int i=0; i< allCircles.size(); i++)
  {
      allCircles.get(i).display();
  }
  }
  
  class CircleSet {
  ArrayList<Circle> circles;
  
  CircleSet() {
      circles = new ArrayList<Circle>();
      createCircles();
  }
  
  void createCircles()
  {
      int[] colors = new color[5];
  
      colors[0] = color(255, 206, 0, random(100, 255)); //yellow
      colors[1] = color(255, random(100, 255)); // white
      colors[2] = color(0, 58, 142, random(100, 255)); //blue
      colors[3] = color(226, 0, 0, random(100, 255)); //red
      colors[4] = color(73, 73, 73, random(100, 255)); //black(gray)
  
      int numCircles = int(random(1, 13));
  
      for (int i=0; i<numCircles; i++)
      {
        float randomAngle = random(0, TWO_PI);
        float randomRadius = random(20, 100);
        float circleX = mouseX + cos(randomAngle) * randomRadius;
        float circleY = (mouseY + sin(randomAngle) * randomRadius);
  
        int indexColors = int(random(colors.length));
  
        circles.add(new Circle(circleX, circleY, random(5, 15), colors[indexColors]));
      }
  }
  
  void update() {
      for (int i =0; i< circles.size(); i++) {
        circles.get(i).update();
      }
  }
  
  void display() {
      for (int i =0; i< circles.size(); i++) {
        // draw circle
        circles.get(i).display();
  
        stroke(255, 130);
        strokeWeight(0.5);
  
        for (int j=i+1; j< circles.size(); j++)
        {
          Circle c1 = circles.get(i);
          Circle c2 = circles.get(j);
  
          if (dist(c1.x, c1.y, c2.x, c2.y) < maxDistance)
          {
            line(c1.x, c1.y, c2.x, c2.y);
          }
        }
      }
  }
  }
  
  class Circle {
  float x, y, dia;
  color col;
  
  Circle(float x, float y, float dia, color col) {
      this.x =x;
      this.y =y;
      this.dia = dia;
      this.col = col;
  }
  
  void update() {
  }
  
  void display() {
      noStroke();
      fill(col);
      ellipse(x, y, dia, dia);
  }
  }
But there are a few thing still not working as they should.

I want to connect the ellipses by clicking them. I understand that I should store the coordinates in an array, but what's the best way to start?

Hope someone can help me and give me advise.

Thanks in advance.

Joshua

HashSet from a textfile

[4 Replies]
- 27-Oct-2012 09:55 AM
- Forum: Programming Questions
Dear all interested readers,

Is it possible to change the line below here:

HashSet<String> words1 = new HashSet<String>(Arrays.asList(new String[] {"in", "the", "on"}));

to a variation which enables me to load the words "in, the, on etc" from a textfile?

Thanks in advance,

Joshua

Minim looping sounds, how to get end of sound

[0 Replies]
- 21-Sep-2012 12:57 AM
- Forum: Core Library Questions
Dear all interested readers,

I have put together a script that loads a textfile, trims the words, scans the words for specific information, and then let the Minim library speak out the words via Google Speech (last part is taken from an example that I found on this forum).

The problem is that I want to load the new word when the playing of the MP3 file is done, to play the next MP3 (of the new word) right after ending the MP3 that was playing before. Not before that, which is now the case.

Who can help me with this? I've been trying to fix it for the last days, but I cannot seem to find the right sollution.

I would be forever grateful.

Code I have now:
1. boolean kollom1 = true;
  boolean kollom2 = false;
  
  import ddf.minim.*;
  AudioPlayer player;
  Minim minim;
  String s = "";
  
  int verplaats = 0;
  int teller;
  int kollom = 30;
  
  int stopteller;
  int timer;
  
  PFont reg;
  PFont reg2;
  
  float textbreedte;
  
  PFont number;
  String[] origtext;
  int counter;
  String delimiters =" ,.?!;:[]><-";
  float yplaats = 28;
  
  PGraphics blok;
  PGraphics tekstlaag;
  PGraphics tekstlaag2;
  
  int telx;
  int tely;
  
  HashSet<String> lidwoorden = new HashSet<String>(Arrays.asList(new String[] {
  "de", "het", "een", "De", "Het", "Een"
  }
  ));
  HashSet<String> voorzetsels = new HashSet<String>(Arrays.asList(new String[] {
  "aan", "Bij", "Om", "In", "Aan", "aan", "aangaande", "achter", "ad", "af", "anno", "betreffende", "bij", "buiten", "conform", "daar", "dankzij", "door", "gezien", "hangende", "in", "ingevolge", "inzake", "jegens", "krachtens", "langs", "met", "min", "na", "naar", "naast", "nabij", "namens", "niettegenstaande", "om", "omstreeks", "omtrent", "ondanks", "onder", "ongeacht", "op", "over", "per", "plus", "qua", "rond", "rondom", "sedert", "te", "tegen", "tegenover", "tijdens", "tot", "tussen", "uit", "van", "vanaf", "vanuit", "vanwege", "via", "volgens", "voor", "voorbij", "wegens", "zonder"
  }
  ));
  HashSet<String> bijvoegelijkenaamwoorden = new HashSet<String>(Arrays.asList(new String[] { "wiskundig", "wisselvallig", "wit", "woedend", "woelig", "woest", "wonderbaarlijk", "wonderlijk", "wrang", "wreed", "wrevelig", "wulps", "zacht", "zachtaardig", "zachtzinnig", "zakelijk", "zalig", "zat", "zedelijk", "zeer", "zeker", "zeldzaam", "zelfstandig", "zelfverzekerd", "zenuwachtig", "zichtbaar", "ziek", "ziekelijk", "zielig", "zijden", "zijwaarts", "zindelijk", "zinloos", "zinnelijk", "zinnig", "zinvol", "zoek", "zoet", "zogenaamd", "zomers", "zonderling", "zondig", "zonnig", "zorgelijk", "zorgeloos", "zorgvuldig", "zorgzaam", "zot", "zout", "zuinig", "zuiver", "zuur", "zwaar", "zwaarlijvig", "zwaarmoedig", "zwak", "zwakzinnig", "zwanger", "zwart", "zwierig", "zwijgzaam", "zwoel"
  }
  ));
  HashSet<String> landen = new HashSet<String>(Arrays.asList(new String[] {
  "Amerika", "Afghanistan", "Akrotiri", "Albanië", "Algerije", "Amerikaanse Maagdeneilanden", "Amerikaans-Samoa", "Andorra", "Angola", "Anguilla", "Antarctica", "Antigua en Barbuda", "Arctic Ocean", "Argentinië", "Armenië", "Aruba", "Ashmore and Cartier Islands", "Atlantic Ocean", "Australië", "Azerbeidzjan", "Bahama's", "Bahrein", "Bangladesh", "Barbados", "Belarus", "België", "Belize", "Benin", "Bermuda", "Bhutan", "Bolivië", "Bosnië-Herzegovina", "Botswana", "Bouvet Island", "Brazilië", "British Indian Ocean Territory", "Britse Maagdeneilanden", "Brunei", "Bulgarije", "Burkina Faso", "Burundi", "Cambodja", "Canada", "Caymaneilanden", "Centraal-Afrikaanse Republiek", "Chili", "China", "Christmas Island", "Clipperton Island", "Cocos (Keeling) Islands", "Colombia", "Comoren (Unie)", "Congo (Democratische Republiek)", "Congo (Volksrepubliek)", "Cook", "Coral Sea Islands", "Costa Rica", "Cuba", "Cyprus"}
  ));
  
  void setup() {
  size(700, 500);
  
  reg = createFont("Arial", 55);
  reg2 = createFont("Arial", 25);
  
  number = createFont("Arial", 50);
  
  String[]rawtext = loadStrings("test.txt");
  
  String all = join(rawtext, "");
  
  origtext=splitTokens(all, delimiters);
  frameRate(1);
  
  noStroke();
  
  tekstlaag = createGraphics(width, height, JAVA2D);
  tekstlaag.beginDraw();
  tekstlaag.endDraw();
  
  tekstlaag2 = createGraphics(width, height, JAVA2D);
  tekstlaag2.beginDraw();
  tekstlaag2.endDraw();
  
  blok = createGraphics(width, height, JAVA2D);
  blok.beginDraw();
  blok.endDraw();
  
  blok.noStroke();
  tekstlaag.noStroke();
  tekstlaag2.noStroke();
  
  background(255);
  
  minim = new Minim(this);
  
  }
  
  void draw() {
  
  background(255);
  image(blok, 0, 0);
  image(tekstlaag, 0, 0);
  image(tekstlaag2, 0, 0);
  
  tekstlaag.beginDraw();
  tekstlaag2.beginDraw();
  blok.beginDraw();
  
  telx = telx+1;
  tely = tely+1;
  
  if (telx > width) {
  
      telx = 0;
      tely = height;
  }
  
  String theword = origtext[counter];
  
  if (counter+stopteller < origtext.length) {
  
      int total = 0;
      for (int i =0; i < origtext.length; i++) {
  
        if (theword.equals(origtext[i])) {
          total++;
        }
      }
  
      noStroke();
      fill(255);
      // rect(0,0,width/4,height-total);
  
      textFont(reg2);
  
      float balk2 = textWidth(theword);
  
      if (total > 1 && total <5) {
  
        tekstlaag2.fill(0, 0, 255);
        tekstlaag.fill(0, 0, 255);
        blok.fill(0, 0, 255);
      }
      else {
  
        tekstlaag2.fill(0);
        tekstlaag.fill(0);
        blok.fill(0);
      }
  
      if (total > 5 && total <8) {
  
        tekstlaag2.fill(255, 100, 30);
        tekstlaag.fill(255, 100, 30);
        blok.fill(255, 100, 30);
      }
  
      if (lidwoorden.contains(theword)) {
  
        tekstlaag2.fill(0, 100, 0);
        tekstlaag.fill(0, 100, 0);
        blok.fill(0, 100, 0);
      }
  
      if (voorzetsels.contains(theword)) {
  
        tekstlaag2.fill(255, 0, 0);
        tekstlaag.fill(255, 0, 0);
        blok.fill(255, 0, 0);
      }
  
  
      if (bijvoegelijkenaamwoorden.contains(theword)) {
  
        tekstlaag2.fill(0, 100, 100);
        tekstlaag.fill(0, 100, 100);
        blok.fill(0, 100, 100);
      }
  
      if (landen.contains(theword)) {
  
        tekstlaag2.fill(200, 0, 200);
        tekstlaag.fill(200, 0, 200);
        blok.fill(200, 0, 200);
      }
  
  
      if (textbreedte+balk2+7 > 277) {
  
        textbreedte = 0;
        yplaats = yplaats+28;
      }
  
      if (yplaats > height-60 && kollom == width/2+15) {
  
        tekstlaag.background(255, 0);
        yplaats = 28;
        kollom = 30;
        kollom1 = true;
        kollom2 = false;
      }
  
      if (yplaats > height-60) {
        tekstlaag2.background(255, 0);
  
        yplaats = 28;
        kollom = width/2+15;
        kollom1 = false;
        kollom2 = true;
      }
  
      if (kollom1 == true) {
        // tekstlaag.fill(0);
        tekstlaag.fill(255);
        tekstlaag.rect(kollom+textbreedte, yplaats+5, balk2+7, 28);
        tekstlaag.fill(255);
      }
  
      if (kollom1 == false) {
  
        tekstlaag2.fill(255);
        // tekstlaag.fill(0);
        tekstlaag2.rect(kollom+textbreedte, yplaats+5, balk2+7, 28);
      }
  
      if (total > 1 && total <5) {
  
        tekstlaag2.fill(0, 0, 255);
        tekstlaag.fill(0, 0, 255);
        blok.fill(0, 0, 255);
      }
      else {
        tekstlaag2.fill(0);
        tekstlaag.fill(0);
        blok.fill(0);
      }
  
      if (total > 5 && total <8) {
  
        tekstlaag2.fill(255, 100, 30);
        tekstlaag.fill(255, 100, 30);
        blok.fill(255, 100, 30);
      }
  
      if (lidwoorden.contains(theword)) {
        tekstlaag2.fill(0, 100, 0);
        tekstlaag.fill(0, 100, 0);
        blok.fill(0, 100, 0);
      }
      if (voorzetsels.contains(theword)) {
        tekstlaag2.fill(255, 0, 0);
        tekstlaag.fill(255, 0, 0);
        blok.fill(255, 0, 0);
      }
      if (bijvoegelijkenaamwoorden.contains(theword)) {
        tekstlaag2.fill(0, 100, 100);
        tekstlaag.fill(0, 100, 100);
        blok.fill(0, 100, 100);
      }
      if (landen.contains(theword)) {
        tekstlaag2.fill(200, 0, 200);
        tekstlaag.fill(200, 0, 200);
        blok.fill(200, 0, 200);
      }
  
      if (kollom1 == true) {
        // tekstlaag.fill(0);
        //   tekstlaag.rect(kollom+textbreedte, yplaats+5, balk2+7, 28);
        // tekstlaag.fill(255);
        tekstlaag.textFont(reg2);
        tekstlaag.text(theword, kollom+textbreedte+1, yplaats+28);
        textbreedte = textbreedte+balk2+7;
      }
  
      if (kollom1 == false) {
  
        // tekstlaag.fill(0);
        // tekstlaag2.rect(kollom+textbreedte, yplaats+5, balk2+7, 28);
        // tekstlaag2.fill(255);
        tekstlaag2.textFont(reg2);
        tekstlaag2.text(theword, kollom+textbreedte+1, yplaats+28);
  
        textbreedte = textbreedte+balk2+7;
      }
  
      blok.rect(0, 0, width, height);
  
     // blok.rect(verplaats, 0, 20, height);
      // blok.filter(BLUR, 4);
      //verplaats = verplaats+20;
  
      s = trim(theword.toLowerCase());
  
  // geluidsverwerking Google
  
      googleTTS(s, "nl");
  
      if (player != null) {
        player.close();
      }
  
      player = minim.loadFile(s + ".mp3", 2048);
      player.loop();
  
      if (player.isPlaying()) {
  
      }
  
  
  
     //
  
     if (counter < origtext.length) {
        teller = teller+1;
        counter = origtext.length-origtext.length+teller;
      }
  
      if (verplaats > width) {
        verplaats = 0;
      }
  }
  else {
      exit();
  }
  // counter = (counter + 1)%origtext.length;
  
  tekstlaag.endDraw();
  tekstlaag2.endDraw();
  blok.endDraw();
  
  // image(beeldlaag, 0, 0);
  }
  
  void googleTTS(String txt, String language) {
  String u = "http://translate.google.com/translate_tts?tl=";
  u = u + language + "&q=" + txt;
  u = u.replace(" ", " ");
  try {
      URL url = new URL(u);
      try {
        URLConnection connection = url.openConnection();
        connection.setRequestProperty("User-Agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 1.0.3705; .NET CLR 1.1.4322; .NET CLR 1.2.30703)");
        connection.connect();
        InputStream is = connection.getInputStream();
        File f = new File(sketchPath + "/" + txt + ".mp3");
        OutputStream out = new FileOutputStream(f);
        byte buf[] = new byte[1024];
        int len;
        while ( (len = is.read (buf)) > 0) {
          out.write(buf, 0, len);
        }
        out.close();
        is.close();
        println("Bestand weggeschreven: " + txt + ".mp3");
      }
      catch (IOException e) {
        e.printStackTrace();
      }
  }
  catch (MalformedURLException e) {
      e.printStackTrace();
  }
  }
The part to get the new word to processed is:

if (counter < origtext.length) {
      teller = teller+1;
      counter = origtext.length-origtext.length+teller;
    }

I want this part only to occur when the previous file is done playing, but I cannot seem to get it right. Been allready testing by using -- if (player.isPlaying()), -- and put the code inside this if statement, but that doesn't work. Does anybody knows a good solution for this? Would be great If someone could give me a tip.

Thanks in advance,

Joshua

Scanning words from a list

[5 Replies]
- 13-Sep-2012 10:58 AM
- Forum: Programming Questions
Dear all interested readers,

I'm working on a code that scans a text for specific words and give the block behind the word a specific color.

example of how I do this:

if ("het".equals(theword) == true) {
      fill(0, 150, 0);
    }
if ("de".equals(theword) == true) {
      fill(0, 150, 0);
    }
if ("een".equals(theword) == true) {
      fill(0, 150, 0);
    }

if ("aan".equals(theword) == true) {
      fill(200, 0, 0);
    }

It seems a bit weird to call the code for "de"+"het"+"een" 3 times, since the results have to be the same. Is it posible to have a list of these words: list = de, het, een, and then check the whole list at once?

Here's my entire code:
1. boolean kollom1 = true;
  boolean kollom2 = false;
  
  int teller;
  int kollom = 30;
  
  int timer;
  
  PFont reg;
  PFont reg2;
  
  float textbreedte;
  
  PFont number;
  String[] origtext;
  int counter;
  String delimiters =" ,.?!;:[]><-";
  float yplaats = 28;
  
  import processing.pdf.*;
  boolean record = false;
  
  int telx;
  int tely;
  int imagecount;
  PImage img;
  int increment=1;
  
  void setup() {
  size(1100, 850);
  
  reg = createFont("Arial", 55);
  reg2 = createFont("Arial", 25);
  
  String[]rawtext = loadStrings("test.txt");
  
  String all = join(rawtext, "");
  
  origtext=splitTokens(all, delimiters);
  
  noStroke();
  
  background(255);
  }
  
  void draw() {
  
      fill(255);
  
  if (record == false) {
      beginRecord(PDF, "frame-####.pdf");
      record = true;
  }
  
  if (counter < origtext.length) {
  
      String theword = origtext[counter];
  
      int total = 0;
      for (int i =0; i < origtext.length; i++) {
  
        if (theword.equals(origtext[i])) {
          total++;
        }
      }
  
      noStroke();
      // rect(0,0,width/4,height-total);
  
      textFont(reg2);
  
      float balk2 = textWidth(theword);
      noStroke();
  
      if (total > 1 && total <5) {
  
        fill(0, 0, 255);
      }
      else {
        fill(0);
      }
  
      if (total > 5 && total <8) {
  
        fill(255, 100, 30);
      }
  
      if ("you".equals(theword) == true) {
        fill(115, 0, 250);
      }
      if ("de".equals(theword) == true) {
        fill(0, 150, 0);
      }
  
       if ("het".equals(theword) == true) {
        fill(0, 150, 0);
      }
  
       if ("een".equals(theword) == true) {
        fill(0, 150, 0);
      }
  
  if ("in".equals(theword) == true) {
        fill(255, 0, 0);
      }
     if ("om".equals(theword) == true) {
        fill(255, 0, 0);
      }
  
      if ("op".equals(theword) == true) {
        fill(255, 0, 0);
      }
      if ("van".equals(theword) == true) {
        fill(255, 0, 0);
      }
          if ("om".equals(theword) == true) {
        fill(255, 0, 0);
      }
          if ("Van".equals(theword) == true) {
        fill(255, 0, 0);
      }
          if ("voor".equals(theword) == true) {
        fill(255, 0, 0);
      }
           if ("over".equals(theword) == true) {
        fill(255, 0, 0);
      }
           if ("bij".equals(theword) == true) {
        fill(255, 0, 0);
      }
           if ("met".equals(theword) == true) {
        fill(255, 0, 0);
      }
  
      if (textbreedte+balk2 > width-50) {
  
        textbreedte = 0;
        yplaats = yplaats+28;
      }
  
      if (yplaats > height-60) {
        yplaats = 28;
  
        if (record == true) {
          endRecord();
          record = false;
        }
  
        background(255);
      }
  
      // fill(0);
  
      if (record == false) {
  
      } else{
  
      rect(textbreedte, yplaats+5, balk2+7, 28);
      fill(255);
      textFont(reg2);
      text(theword, textbreedte+1, yplaats+26);
  
      textbreedte = textbreedte+balk2+7;
      }
  }
  else {
      println("done");
      endRecord();
  
  }
  // counter = (counter + 1)%origtext.length;
  
  if (counter < origtext.length) {
  
      teller = teller+1;
      counter = origtext.length-origtext.length+teller;
  }
  
  }
Hope that someone can give me tips on how to solve this.

Thanks in advance

createGraphics

[2 Replies]
- 09-Sep-2012 05:40 AM
- Forum: Programming Questions
Hi All,

I am working with createGraphics.

When yplaats is over height-100, I would like to clear the tekstlaag. The only methods I can think of are tekstlaag.background(0) and calling the tekstlaag again by using:

tekstlaag = createGraphics(width, height, JAVA2D);

Is there a good way to just clear the layer without starting all over? When I use background, the whole layer just fills itself with the (0)=black color, while I just want a cleared layer.

How can I do this?

if (yplaats > height-100) {

   yplaats = 0;
   background(0);
   tekstlaag.background(0);
   // tekstlaag = createGraphics(width, height, JAVA2D);

}

XML error 2.0a8

[3 Replies]
- 29-Aug-2012 10:50 AM
- Forum: Core Library Questions
Dear all interested readers,

I gave 2.0a8 a go today, to see if it's working properly with my projects I'm currently working on with 2.0a5. I get this weird message when I try to load an XML this way:

xml = new XML(this, "http://www.witregel.nl/scraper/getall.php?keyword[]="+woorden);

The console says:

Unhandled exception type IOException. Not sure what this means. Bug?

Weird null pointer exception (XML feed)

[5 Replies]
- 25-Aug-2012 03:35 PM
- Forum: Programming Questions
Dear all interested readers,

I have a problem with a few null pointer exceptions, comming from XML requests that should not give null pointer exceptions. When I check the data via a browser, there seems to be no problem.

If I change the line:

xml = new XML(this, "http://www.witregel.nl/scraper/getall.php?keyword[]=&keyword[]=assad");

to

xml = new XML(this, "http://www.witregel.nl/scraper/getall.php?keyword[]=&keyword[]=parijs");

I get a null pointer exception. When I check the link via my webbrowser, I can't find any reason to get an error. It all looks good. Do I miss something?

Thanks in advance for the tips.

Here's the code:
1. String woorden = " ";
  
  boolean aan = false;
  
  int startcount;
  
  XML[] urls;
  XML[] bron;
  XML[] artikelen;
  
  int scroll;
  
  String[] wordsArray;
  int numLines = 0;
  float textHeight;
  
  String artikel;
  
  XML xml;
  
  int i;
  PFont font;
  
  int fontSize = 10;
  int specificWidth = 700-40;
  int lineSpacing = 5;
  
  void setup() {
  
  size(1300, 800);
  font = createFont("Arial", fontSize);
  textFont(font, fontSize);
  }
  
  void draw() {
  background(255);
  
  xml = new XML(this, "http://www.witregel.nl/scraper/getall.php?keyword[]=&keyword[]=assad");
  
  //xml = new XML(this, "http://www.witregel.nl/scraper/getall.php?keyword[]=&keyword[]=parijs");
  
  XML[] urls = xml.getChildren("result/url");
  XML[] bron = xml.getChildren("result/bron");
  XML[] artikelen = xml.getChildren("result/artikel");
  
  for (int i = 0; i < artikelen.length; i++)
  {
  
      textFont(font, fontSize);
  
  
      if (frameCount % 1 == 0) {
  
        float m = mouseX;
  
        scroll = (int)map(m, 0, width, 0, artikelen.length);
  
        println(scroll);
  
        textFont(font, fontSize);
  
        String artikel = artikelen[scroll].getContent();
  
        artikel = artikel.replaceAll("\n", " ");
  
        fill(0, 255, 0);
  
        rect(60, 10, specificWidth+20, textboxhoogte(artikel, specificWidth, fontSize, lineSpacing));
  
        if (scroll == i) {
          fill(255);
        }
        else {
          fill(0);
        }
  
        fill(0, 20, 300);
  
        text( artikel, 70, 20, specificWidth, textboxhoogte(artikel, specificWidth, fontSize, lineSpacing));
  
        fill(0, 0, 250);
        textFont(font, 20);
      }
  }
  }
  
  int textboxhoogte(String string, int specificWidth, int fontSize, int lineSpacing) {
  String[] wordsArray;
  String tempString = "";
  int numLines = 0;
  float textHeight;
  
  wordsArray = split(string, " ");
  
  for (int i=0; i < wordsArray.length; i++) {
      if (textWidth(tempString + wordsArray[i]) < specificWidth) {
        tempString += wordsArray[i] + " ";
      }
      else {
        tempString = wordsArray[i] + " ";
        numLines++;
      }
  }
  
  numLines++;
  
  textHeight = numLines * (textDescent() + textAscent() + lineSpacing);
  return(round(textHeight));
  }

Toxiclib example

[5 Replies]
- 20-Aug-2012 10:30 AM
- Forum: Programming Questions
Dear all interested readers,

I am currently seeking for methods to visualise a list of keywords I obtained from my webserver. The example I used is from Toxiclibs. I changed some stuff, but I don't know how to delete the "WordLengthComparator" and the "FrequencyComparator". The list I use is allready alphabetical, so I just want the list to be unmodified.

Here's my code:

// start

boolean aan = false;
PFont font;

import toxi.util.*;
import toxi.math.*;

List<HistogramWord> uniqueWords;

ZoomLensInterpolation zoomLens = new ZoomLensInterpolation();

float smoothStep=0.12;

int gap=30;
int labelGap=0;
int wordLimit=1900;

HistogramSorter sortFunction;

void setup() {
size(680, 800);

font = createFont("Arial", 40);
textFont(font, 40);

initHistogram();

String[] fontList = PFont.list();
println(fontList);
}

void draw() {

float maxBarHeight= height-labelGap-20;
float normFactor=maxBarHeight/sortFunction.getMetric(uniqueWords.get(0));
float focalPos=map(mouseY, gap, width-gap, 0.0, 1.0);
zoomLens.setLensPos(focalPos, smoothStep);
zoomLens.setLensStrength(map(mouseX, 0, width/5, -1, +1), smoothStep);
int focalX=(int)zoomLens.interpolate(gap, width-gap, focalPos);
background(255);
noStroke();
textAlign(LEFT);
fill(0);
int space=10;
int maxWords=min(uniqueWords.size(), wordLimit);

for (int i=0; i<maxWords; i++) {
    float relativePos=(float)i/maxWords;
    HistogramWord w=uniqueWords.get(i);
    float barHeight=sortFunction.getMetric(w)*normFactor;
    int x=(int)zoomLens.interpolate(gap, width-gap, relativePos);
    int x2=(int)zoomLens.interpolate(gap, width-gap, (float)(i+1)/maxWords);
    int barWidth=max(x2-x-1, 1);
    int barCenter=(x+x2)/2;

    if (abs(barCenter-focalX)<=barWidth/2) {
      fill(0, 0, 255);
      // println(w.word);
      if (aan == true) {
        println("GO"+w.word);
      }

      aan = false;
    }
    else {

      fill(0);
    }
    // rect(width/2, (int)x, -barHeight, barWidth);
rect(40, (int)x, -30, barWidth);
    float ts=min(x2-x, 30);
    if (ts>3) {
      textSize(ts);
      pushMatrix();
      translate(48, barCenter+ts/4);
      text(w.word, 0, 0);
      //text("("+sortFunction.getMetric(w)+") "+w.word, 0, 0);
      popMatrix();
    }
}
}

void initHistogram() {
String fileName=null;

if (fileName==null) {

    fileName="http://www.witregel.nl/scraper/getkeywords.php";
}
String[] lines= loadStrings(fileName);

for ( int i = 0; i < lines.length; i++) {

    lines[i] = lines[i].replaceAll("charset=utf", "");
    lines[i] = lines[i].replaceAll("equiv=", "");
    lines[i] = lines[i].replaceAll("8", "");
    lines[i] = lines[i].replaceAll("type", "");
    lines[i] = lines[i].replaceAll("head><body>aaa", "");
    lines[i] = lines[i].replaceAll("lang=", "");
    lines[i] = lines[i].replaceAll("html", "");
    lines[i] = lines[i].replaceAll("><head><meta http", "");
    lines[i] = lines[i].replaceAll("html", "");
    lines[i] = lines[i].replaceAll("http", "");
    lines[i] = lines[i].replaceAll("www", "");
    lines[i] = lines[i].replaceAll("< xmlns=", "");
    lines[i] = lines[i].replaceAll("><", "");
    lines[i] = lines[i].replaceAll("hntm", "");
    lines[i] = lines[i].replaceAll("contenttype", "");
    lines[i] = lines[i].replaceAll("text", "");
    lines[i] = lines[i].replaceAll("body>", "");
    lines[i] = lines[i].replaceAll("xml:", "");
    lines[i] = lines[i].replaceAll("-", "");
    lines[i] = lines[i].replaceAll("content-type", "");
    lines[i] = lines[i].replaceAll("content=", "");
    lines[i] = lines[i].replaceAll("text/; -", "");
    lines[i] = lines[i].replaceAll("/></-status", "");
    lines[i] = lines[i].replaceAll("://.w3.org/1999/x", "");
    lines[i] = lines[i].replaceAll("<", "");
}

int totalWordCount = 0;

HashMap<String, Integer> histogram=new HashMap<String, Integer>();
for (int i=0; i<lines.length; i++) {

    if (0==i %2) {
      println("processing line : " +i);
    }
    String[] words=splitTokens(lines[i], ",./?!:():;\"-&");
    // String[] words=splitTokens(lines[i], " ,./?!:():;'\"-&");

    for (String w : words) {
      totalWordCount++;
      w=w.toLowerCase();
      if (histogram.get(w)==null) {
        histogram.put(w, 1);
        println("new word: "+w);
      }
      else {
     //   histogram.put(w, histogram.get(w)+1);
      }
    }
}
println("----\nstatistics:");
println("total: "+totalWordCount);
println("unique: "+histogram.size());

uniqueWords=new ArrayList<HistogramWord>();
for (String w : histogram.keySet()) {
    HistogramWord hw=new HistogramWord(w, histogram.get(w));
    uniqueWords.add(hw);
}
setSortFunction(new FrequencyComparator());
for (int i=0; i<1; i++) {
    println(uniqueWords.get(i).word.length());
}
}

void keyPressed() {
if (key=='g') {
    aan = true;
}

if (key=='f') {
    setSortFunction(new FrequencyComparator());
}
if (key=='l') {
    setSortFunction(new WordLengthComparator());
}
if (key=='r') {
    initHistogram();
}
}

// Niet herhalen

void setSortFunction(HistogramSorter s) {
sortFunction=s;
Collections.sort(uniqueWords, sortFunction);
}

class HistogramWord {
String word;
int count;

HistogramWord(String w, int c) {
    word = w;
    count = c;
}

String toString() {
    return word+": "+count;
}
}

abstract class HistogramSorter implements Comparator<HistogramWord> {

abstract int compare(HistogramWord a, HistogramWord b);

abstract int getMetric(HistogramWord w);
}

class FrequencyComparator extends HistogramSorter {

int compare(HistogramWord a, HistogramWord b) {
   return b.count-a.count;
}

public int getMetric(HistogramWord w) {
    return w.count;
}
}

class WordLengthComparator extends HistogramSorter {

int compare(HistogramWord a, HistogramWord b) {
   return b.word.length()-a.word.length();
}

public int getMetric(HistogramWord w) {
    return w.word.length();
}
}

// end

Hope someone can advise me on this matter.

Thanks in advance.

XML parser not working

[6 Replies]
- 16-Jul-2012 03:13 PM
- Forum: Programming Questions
Dear all interested readers,

I've been reading alot of forum posts about XML parsing with 2.0, but I don't seem to get why the next code is not working:
1. XML xml;
  
  void setup() {
  size(200, 200);
  xml = new XML(this, "http://robotfunk.com/temp/getall.php?keyword[]=&keyword[]=crisis");
  int numSites = xml.getChildCount();
  for (int i = 0; i < numSites; i++) {
      XML kid = xml.getChild(i);
      String url = kid.getString("artikel");
      String site = kid.getContent();
      println(url + " : " + site);
  }
  }
What am I doing wrong? I am using a right link, but I get a NPE at:

String url = kid.getString("artikel");

-

Hope that someone knows how to help.

Kind regards,

Joshua

Using string from XML is causing problems.

[1 Reply]
- 16-Jul-2012 10:03 AM
- Forum: Programming Questions
Dear all interested readers,

I am trying to combine two sketches I have. The first sketch is a tool to make make a box fit a text.

code:
1. import processing.opengl.*;
  
  PFont font;
  int fontSize = 30;
  int specificWidth = mouseX+5;
  int lineSpacing = 11;
  
  int textHeight;
  
  void setup() {
  size(600, 600, OPENGL);
  background(0);
  
  font = createFont("Arial", fontSize);
  textFont(font, fontSize);
  noLoop();
  }
  
  void draw() {
  String string = "This is where the article that is recieved from the XML should apear. It should automaticly get the right height to fit the text. After this, the next article should be drawn under this textframe";
  
  background(0);
  int specificWidth = mouseX+5;
  
  fill(0,255,0);
  rect(10, 10, specificWidth+20, textboxhoogte(string, specificWidth, fontSize, lineSpacing));
  
  fill(0);
  text(string, 20, 20, specificWidth+10, height);
  
  translate(0,textboxhoogte(string, specificWidth, fontSize, lineSpacing));
  
  loop();
  }
  
  int textboxhoogte(String string, int specificWidth, int fontSize, int lineSpacing) {
  String[] wordsArray;
  String tempString = "";
  int numLines = 0;
  float textHeight;
  
  wordsArray = split(string, " ");
  
  for (int i=0; i < wordsArray.length; i++) {
      if (textWidth(tempString + wordsArray[i]) < specificWidth) {
        tempString += wordsArray[i] + " ";
      }
      else {
        tempString = wordsArray[i] + " ";
        numLines++;
      }
  }
  
  numLines++; //adds the last line
  
  textHeight = numLines * (textDescent() + textAscent() + lineSpacing);
  return(round(textHeight));
  }
This works perfect.

Now I have the next code for loading news articles from my server:
1. import simpleML.*;
  
  XMLRequest xmlRequest;
  XMLRequest keywords;
  
  void setup() {
  size(200, 200);
  
  keywords = new XMLRequest(this, "http://robotfunk.com/temp/getall.php" );
  keywords.makeRequest();
  
  xmlRequest = new XMLRequest(this, "http://robotfunk.com/temp/getall.php?keyword[]=&keyword[]=Amsterdam" );
  xmlRequest.makeRequest();
  }
  
  void draw() {
  noLoop(); // Nothing to see here
  }
  
  // When the request is complete
  void netEvent(XMLRequest ml) {
  
  // Retrieving an array of all XML elements inside" title* "tags
  String[] headlines = ml.getElementArray( "artikel");
  String[] datum = ml.getElementArray( "datum");
  String[] keyword = ml.getElementArray( "keywords");
  
  for (int i = 0; i < headlines.length; i++ ) {
      println(headlines[i]);
      println(datum[i]);
  }
  
  println(keyword);
  
      println("totaal aantal artikelen:");
  
  println(headlines.length);
  
  }
(For this code, I am using the SimpleML library | http://www.shiffman.net/p5/simpleML/simpleML.zip )

What I want is to draw the found articles like the first sketch.

What I did is combine the text with getting articles:

void netEvent(XMLRequest ml) {

// Retrieving an array of all XML elements inside" title* "tags
String[] headlines = ml.getElementArray( "artikel");
String[] datum = ml.getElementArray( "datum");
String[] keyword = ml.getElementArray( "keywords");

for (int i = 0; i < headlines.length; i++ ) {
println(headlines[i]);
println(datum[i]);

fill(0,255,0);
rect(10, 10, specificWidth+20, textboxhoogte(string, specificWidth, fontSize, lineSpacing));

fill(0);
text(string, 20, 20, specificWidth+10, height);

translate(0,textboxhoogte(string, specificWidth, fontSize, lineSpacing));

}

//

This gives me an error. What can I do best? Right now, I am really stuck and I don't know why.

Thanks in advance for your help.

give name (or number) to Blobs

[0 Replies]
- 04-Apr-2012 06:06 AM
- Forum: Contributed Library Questions
Dear all interested readers,

I am making a blob detection sketch using the wonderfull OPENCV library. What I want now, is to label each blob with a number. How can I add this label?

This is the code I have now
1. import hypermedia.video.*;
  import java.awt.*;
  import processing.video.*;
  
  int counter;
  Capture myCapture;
  OpenCV opencv;
  String[] captureDevices;
  
  int w = 320;
  int h = 240;
  int threshold = 80;
  
  boolean find=true;
  
  PFont font;
  
  void setup() {
  
  size(w*3, h*3 );
  
  opencv = new OpenCV( this );
  opencv.capture(width, height);
  println (Capture.list());
  
  captureDevices = Capture.list();
  
  myCapture = new Capture(this, width, height, 30);
  font = loadFont( "AndaleMono.vlw" );
  textFont( font );
  
  opencv = new OpenCV(this);
  opencv.allocate(width, height);
  //opencv.cascade( OpenCV.CASCADE_FRONTALFACE_ALT );
  }
  
  void draw() {
  background(0);
  
  if (myCapture.available()) {
      myCapture.read();
      opencv.copy(myCapture);
      image(opencv.image(), 0, 0, width, height);
  
      opencv.absDiff();
      opencv.threshold(threshold);
  
      Blob[] blobs = opencv.blobs( 100, w*h, 20, true );
  
      noFill();
  
      pushMatrix();
  
      for ( int i=0; i<blobs.length; i++ ) {
  
        if (i > blobs.length) { //When "i" is less than "35"...
          counter = 0;
        }
  
  
  
        Rectangle bounding_rect    = blobs[i].rectangle;
        float area = blobs[i].area;
        float circumference = blobs[i].length;
        Point centroid = blobs[i].centroid;
        Point[] points = blobs[i].points;
  
        noFill();
        // stroke( blobs[i].isHole ? 128 : 64 );
        rect( bounding_rect.x, bounding_rect.y, bounding_rect.width, bounding_rect.height );
  
        stroke(0, 0, 255);
        line( centroid.x-5, centroid.y, centroid.x+5, centroid.y );
        line( centroid.x, centroid.y-5, centroid.x, centroid.y+5 );
        noStroke();
        fill(0, 0, 255);
        text( area, centroid.x+5, centroid.y+5 );
  
        fill(40, 300, 20);
        rect(centroid.x, centroid.y, bounding_rect.width, bounding_rect.height);
  
        fill(255, 0, 255, 64);
        stroke(255, 0, 255);
        if ( points.length>0 ) {
          beginShape();
          for ( int j=0; j<points.length; j++ ) {
            vertex( points[j].x, points[j].y );
          }
          endShape(CLOSE);
        }
  
        noStroke();
        fill(255, 0, 255);
        text( circumference, centroid.x+5, centroid.y+15 );
        fill(255, 0, 0);
  
        text( counter, centroid.x+5, centroid.y+15 );
  
        fill(255, 255, 255);
      }
      popMatrix();
  }
  }
  
  void keyPressed() {
  if ( key==' ' ) opencv.remember();
  }
  
  void mouseDragged() {
  threshold = int( map(mouseX, 0, width, 0, 255) );
  }
  
  public void stop() {
  opencv.stop();
  super.stop();
  }

Raster Images

[6 Replies]
- 25-Mar-2012 03:38 AM
- Forum: Share your Work
Dear all interested readers,

I wanted to experiment with images and rastering images in Processing. What I do is make 4 png files from a CMYK image. I seperate the C, M, Y, K to 4 files. Each file has one color (cyan, magenta, yellow, black).

I load these grayscale files into the processing skechts, that reads the color value for each pixel. I export these renderings to PDF. Later, I bring 4 PDF files together in Indesign and blend the layers.

Hope you guys like the results.

I am still looking for ways to load CMYK images in Processing and read the CMYK values. This seems to be almost imposible. This is why I solved it with seperated color files.

CMYK

[6 Replies]
- 01-Mar-2012 03:14 PM
- Forum: General Discussion
Dear all interested readers,

Looking through the old forum I found many posts where people ask for help with CMYK in Processing. There are some tricks to convert colors, but there is still no good way to open a CMYK jpeg and then read the CMYK values, for instance.

Nodebox is able to read and write CMYK files. I sometimes use this software just because I need to make good CMYK documents. Since I use Processing for generating printed matter, and I know other people do as well, it will be a good thing to have this function in Processing.

I hope we can start a discussion that will lead to a solution.

Make a Delaunay diagram with Geomerative + Lee Byron's Mesh library

[3 Replies]
- 30-Jan-2012 02:49 AM
- Forum: Contributed Library Questions
Dear all interested readers,

I am trying to combine two sketches.

What I want to achieve is to take points from a SVG-file and use these points for the Delaunay mesh.

This is how I get the points from the SVG:
2. import geomerative.*;
4. RPoint[] myPoints;
5. float circleSize = 20;
7. void setup() {
8. size(500, 500);
9. smooth();
10. noLoop();
12. RG.init(this);
13. RShape s = RG.loadShape("letterr.svg");
14. myPoints = s.getPoints();
15. }
17. void draw() {
18. background(0);
19. for (int i = 0; i < myPoints.length; i += 10) {
20. fill(255);
21. ellipse(random(myPoints[i].x-10,myPoints[i].x+10), random(myPoints[i].y-10,myPoints[i].y+10), circleSize, circleSize);
22. }
23. noLoop();
25. }
This is how I use the Mesh library:
2. import megamu.mesh.*;
3. float[][] points = new float[7][4];
4. Delaunay myDelaunay ;
8. void setup() {
9. size(600, 600);
10. background(255);
11. }
13. void draw() {
15. points[0][0] = mouseX;
16. points[0][1] = mouseY;
17. points[1][0] = 150;
18. points[1][1] = 105;
19. points[2][0] = 320;
20. points[2][1] = 113;
21. points[3][0] = 220;
22. points[3][1] = 413;
23. points[4][0] = 160;
24. points[4][1] = 253;
25. points[5][0] = 230;
26. points[5][1] = 30;
27. points[6][0] = 500;
28. points[6][1] = 500;
30. myDelaunay = new Delaunay( points );
32. background(200, 200, 250);
33. strokeWeight(3);
34. stroke(250);
36. int[][] myLinks = myDelaunay.getLinks();
38. for (int i=0; i<myLinks.length; i++)
39. {
40. int startIndex = myLinks[i][0];
41. int endIndex = myLinks[i][1];
43. float startX = points[startIndex][0];
44. float startY = points[startIndex][1];
45. float endX = points[endIndex][0];
46. float endY = points[endIndex][1];
47. line( startX, startY, endX, endY );
48. }
49. }
So, I would like to use the points I get by using the Geomerative library, and use these points to create a mesh.

What would be the best solution?

Thanks in advance.

Kind regards,

Joshua

Adding values, more graphs

[6 Replies]
- 15-Dec-2011 10:35 AM
- Forum: Programming Questions
Dear all interested readers,

I am trying to visualise actual data. I have made a moving graph, like a heart monitor. What would be the best way to add more values in order to make more graphs? Maybe I can make a class for it, or can I do this more simple?
1. float[] values;
  int numPoints;
  
  void setup(){
  size(800,600);
  frameRate(30);
  smooth();
  noStroke();
  
  frame.setResizable(true);
  numPoints = 20;
  values = new float[numPoints];
  
  }
  
  void draw(){
  background(255);
  
  if (frameCount % 10 == 0) {
  storeval();
  }
  
  values[0] = (height*0.01)*(mouseX);
  
  fill(100,250,100,150);
  beginShape();
  for (int i=0; i<numPoints; i++) {
      float value = values[i];
      float x = width - (width / numPoints) * i;
      float y = height - value;
      vertex(x, y);
  
  }
  
  vertex(0, height);
  vertex(width, height);
  endShape();
  }
  
  void storeval(){
  
     for(int i = numPoints-2; i >= 0; i--){
      values[i+1] = values[i];
     }
  
  }
Example of what I want to do:

Thanks in advance,

Joshua

rotate bezier shape 180 degrees

[3 Replies]
- 07-Dec-2011 11:28 AM
- Forum: Programming Questions
Hi.

Is there a good way to rotate a bezier vertex 180 degrees? I looked the forum, but didn't find anything that was working.

Hope you can help me out.

interpolated curve....

[2 Replies]
- 18-Nov-2011 11:28 AM
- Forum: Programming Questions
Dear all interested readers,

I am currnetly working with an example of interpolating curves for making typedesigns.

The problem is that the example doesn't use beziercurve shape, but little lines that make the curve. How can I use what I have now to make a bezier path?

http://witregel.nl/letter_n.zip

(sketch)

Hope someone can explain me what to do. Thanks in advance.

Kind regards,

Joshua

Help with beziers

[2 Replies]
- 14-Nov-2011 12:45 PM
- Forum: Programming Questions
Dear interested readers,

I would like to make a beziershape out of the next code:

http://processingjs.nihongoresources.com/bezierinfo/sketchsource.php?sketch=interpolatedCubicOffsetsWithDistance

Wich points should I use to make a path of the lines?

Hope someone can help me with this.

Kind regards,

Joshua Koomen

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