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GUI problem
[1Reply]
- 06-Feb-2013 12:51 PM
- Forum: Programming Questions
Hello. I am trying to make simple gui(in fact I am editing "Buttons" example)
I have got array and I would like to append element by clicking circlebutton. I thought it would be simply.
But when I clik it append more than one element. How should I write that to append only one?
My code.Thanks for any reply:)
2. int[] El_num = new int[0];
4. CircleButton circle1, circle2, circle3;
5. RectButton rect1, rect2;
7. boolean locked = false;
9. void setup()
10. {
11. background(255);
12. size(400, 400);
13. smooth();
15. color buttoncolor = color(204);
16. color highlight = color(153);
17. ellipseMode(CENTER);
20. // Define and create circle button
21. circle1 = new CircleButton(300, 40, 24, buttoncolor, highlight);
22. // Define and create circle button
23. circle2 = new CircleButton(300, 70, 24, buttoncolor, highlight);
24. circle3 = new CircleButton(30, 100, 100, buttoncolor, highlight);
25. // Define and create rectangle button
26. rect1 = new RectButton(150, 20, 100, buttoncolor, highlight);
27. // Define and create rectangle button
28. rect2 = new RectButton(90, 20, 50, buttoncolor, highlight);
29. }
31. void draw()
32. {
33. background(255);
34. //stroke(255);
35. strokeWeight(2);
36. update(mouseX, mouseY);
37. circle1.display();
38. circle2.display();
39. circle3.display();
40. rect1.display();
41. rect2.display();
42. println(El_num.length);
43. }
45. void update(int x, int y)
46. {
47. if(locked == false) {
48. circle1.update();
49. circle2.update();
50. circle3.update();
51. rect1.update();
52. rect2.update();
53. }
54. else {
55. locked = false;
56. }
57. //---THERE DATA
58. if(mousePressed) {
59. if(circle1.pressed()) {
60. El_num = append(El_num, 7);
61. }
62. else if(circle2.pressed()) {
63. // currentcolor = circle2.basecolor;
64. }
65. else if(circle3.pressed()) {
66. // currentcolor = circle3.basecolor;
67. }
68. else if(rect1.pressed()) {
69. //currentcolor = rect1.basecolor;
70. }
71. else if(rect2.pressed()) {
72. // currentcolor = rect2.basecolor;
73. }
74. }
75. }
78. class Button
79. {
80. int x, y;
81. int size;
82. color basecolor, highlightcolor;
83. color currentcolor;
84. boolean over = false;
85. boolean pressed = false;
87. void update()
88. {
89. if(over()) {
90. currentcolor = highlightcolor;
91. }
92. else {
93. currentcolor = basecolor;
94. }
95. }
97. boolean pressed()
98. {
99. if(over) {
100. locked = true;
101. return true;
102. }
103. else {
104. locked = false;
105. return false;
106. }
107. }
109. boolean over()
110. {
111. return true;
112. }
114. boolean overRect(int x, int y, int width, int height)
115. {
116. if (mouseX >= x && mouseX <= x+width &&
117. mouseY >= y && mouseY <= y+height) {
118. return true;
119. }
120. else {
121. return false;
122. }
123. }
125. boolean overCircle(int x, int y, int diameter)
126. {
127. float disX = x - mouseX;
128. float disY = y - mouseY;
129. if(sqrt(sq(disX) + sq(disY)) < diameter/2 ) {
130. return true;
131. }
132. else {
133. return false;
134. }
135. }
137. }
139. class CircleButton extends Button
140. {
141. CircleButton(int ix, int iy, int isize, color icolor, color ihighlight)
142. {
143. x = ix;
144. y = iy;
145. size = isize;
146. basecolor = icolor;
147. highlightcolor = ihighlight;
148. currentcolor = basecolor;
149. }
151. boolean over()
152. {
153. if( overCircle(x, y, size) ) {
154. over = true;
155. return true;
156. }
157. else {
158. over = false;
159. return false;
160. }
161. }
163. void display()
164. {
165. strokeWeight(1);
166. stroke(0);
167. fill(currentcolor);
168. ellipse(x, y, size, size);
169. }
170. }
172. class RectButton extends Button
173. {
174. RectButton(int ix, int iy, int isize, color icolor, color ihighlight)
175. {
176. x = ix;
177. y = iy;
178. size = isize;
179. basecolor = icolor;
180. highlightcolor = ihighlight;
181. currentcolor = basecolor;
182. }
184. boolean over()
185. {
186. if( overRect(x, y, size, size) ) {
187. over = false;
188. return false;
189. }
190. else {
191. over = false;
192. return false;
193. }
194. }
196. void display()
197. {
198. strokeWeight(1);
199. stroke(0);
200. fill(currentcolor);
201. rect(x, y, size, size);
202. }
203. }

small problem image visibility multiply
[5Replies]
- 05-Feb-2013 01:16 PM
- Forum: Programming Questions
Hello. I have got small problem.
I have got 2 imgages in draw function.images are crossing/overlaping? I do not know how to explain it. I use threeshold filter and i have got problem which visibility. I would like to have got black material pixel visibility but white- transparent (i would like to use multiply). But my images are rotated, I am a litte bit confused.
My explanation can be very unclearly-there is photo.

Now it should be more clear. Thanks for any help:)

small problem l-system koch curve etc
[4Replies]
- 24-Jan-2013 12:32 PM
- Forum: Programming Questions
Hello. I have small problem. I wrote small program to generate this things. If THETA is 90 degree everythings looks ok.When theta for example is 60 It works bad.
This is my code. Maybe somone can help me.

PVector pos;//<start position

void setup()
{
float p=1.5;//extra variable to simple change size
size(int(800*p),int( 800*p));

noLoop();
background(#ffffff);
pos=new PVector(800*p/2,400*p/2);//<start position
}
//-----------------------------
//
String L_string = "+F+F+F+F";
//String change="F-F+F+FF-F-F+F";
String change="FF-F-F-F-F-F+F";
int n=3;//iteration number
//-----------------------------

int F=int(10); //how long single line is

float THETA=PI/2;

//-------------------------------
//-------------------------------
void draw()
{
println(L_string+" <-String in beginning ");
for(int i=0;i<n;i=i+1)//n-number of iterations,it generate string
{
L_string=Make_String(L_string,change);
println(L_string+" <-String in end");
}

background(#ffffff);
draw_String(L_string,THETA,F);
}
//-------------------------------
//-------------------------------

String Make_String(String L_string,String change)
{
//I am creating array
String[] L_STRING = new String[L_string.length()];
//----------------------------------------
//fill in array
for (int i = 0; i < L_string.length(); i = i+1)
{
L_STRING[i]=""+L_string.charAt(i);

if(L_string.charAt(i)=='F')
{L_STRING[i]=change;}
}

//----------------------------------------
int W=L_string.length();
//I add new variable because i will change string
//it create string from array
L_string="";
for (int i = 0; i < W; i = i+1)
{
L_string=L_string+L_STRING[i];
}
return(L_string);
}
//-------------------------------
//-------------------------------
void draw_String(String L_string,float TETA,int F)
{

float R=0;

for (int i = 0; i < L_string.length(); i = i+1)
{
//if rotation is multiple of 360 i can remove it
if(R>=2*PI)
{R=R-2*PI;}
if(R<-2*PI)
{R=R+2*PI;}

if(L_string.charAt(i)=='F'){

//extra variables
int x=int(F*cos(R+PI/2));
int y= int(F*sin(R+PI/2));

line(pos.x,pos.y,pos.x- x,pos.y-y);
pos.x-= x;
pos.y-= y;}

if(L_string.charAt(i)=='+')
{//turn right
R+=THETA;}

if(L_string.charAt(i)=='-')
{//turn left
R-=THETA;}

}
print(R);
}

animation 3d,model 3d
[0Replies]
- 11-Sep-2012 01:50 AM
- Forum: General Discussion
- Sub forum: Other
Hi all :)
I would like to make video similar to this animation.
I do not have any idea how make this.

In fact i need model made from photo.
Something similar to 00:00

Vertex aren't located in similar distance.
So i need to analyze a photo.
I think that if photo have less resolution it is better.

I need some kind of curve detection to make mesh?
Maybe somebody made something similar or see on open processing?
Thanks a lot:)

PrintScrn. all windows
[3Replies]
- 04-Aug-2012 11:45 AM
- Forum: General Discussion
- Sub forum: Other
Hi all.
I have a question.
It is possible to use processing to make a print screen?
I mean a photo where are all windows not only all things inside processing window?
I would like to save that photo.
I think that processing is "java" and i should have possibility to make it.Tell me if I am wrong.
Maybe i should import library?

laser distance sensor
[3Replies]
- 27-May-2012 12:54 PM
- Forum: Programming Questions
Hi all.I must make some model of laser distance sensor.Idea is quite simple.There is 2 point and i must have a linear function.That function make a red pixel across the screen and stop when there is some black pixel.Then it returns me a distance.
I wrote function and it was quite simple but there i have problem. I wrote linear function using
y1=ax1+b
y2=ax2+b
When x1=x2 it is no function in math "a" is infiniti and it doesn't work properly so i wrote a small extra code what to do when x1=x2.In fact it work ok when x1=x2.There is one extra problem when "a" is big there is printed really small amount of pixel and distance isn't correct.I Know that it can be abstarct so i quote code below.Thanks for all reply.:)

void setup(){
background(#ffffff);
size(X, Y);
pos1 = new PVector(200,200);
pos2=new PVector(210,210);
}
//-------------------------------------------
//-------------------------------------------
PVector pos1,pos2;
int X=400;//SZEROKOSC OKNA
int Y=400;//WYSOKOSC OKNA

int Error=0;//ZMIENNA GLOBALNA ODPOWIADAJACE ZA PRZERWANIE PETLI
float CZUJNIK=0;//Z GLOBALNA ODPOWIADAJACE ZA WIDZENIE
int x=0;//Z GLOBALNA DO RYSOWANIA FUNKCJI
int y=0;//Z GLOBALNA DO RYSOWANIA FUNKCJI
int k=0;//Z ODPOWIADAJACA ZA ILOSC WYSWIETLONYCH KLATEK
//color black=#000000;//KOLOR CZARNY POTRZEBNY DO WYKRYWANIA SCIAN
//-------------------------------------------
//-------------------------------------------

void draw(){
background(255);//ZAWSZE RYSOWANE PODLOZE
pos1.x=200;
pos1.y=200;
point(pos1.x,pos1.y);
//point(x2,y2);

pos2.x=mouseX;//X PUNKTU 2 PODOZA ZA CURSOREM
pos2.y=mouseY;//Y PUNKTU 2 PODOZA ZA CURSOREM
//x2=20; //X PUNKTU 2 JEST STALE
//y2=250; //Y PUNKTU 2 JEST STALE

//RAMKA GORNA1
stroke(#F2EE64);
fill(#F2EE64);
rect(0,0,180,40);

fill(#ff0000);

text("x1= " + pos1.x, 65, 15);
text("y1= " + pos1.y, 65, 30);

text("x2= " + pos2.x, 125, 15);
text("y2= " + pos2.y, 125, 30);
//------------------------
//CZARNY RECT
stroke(#000000);
fill(0);
rect(370,80,20,180);

rect(180,0,190,40);
//------------------------
//RAMKA GORNA1
stroke(#F2EE64);
fill(#F2EE64);
//rect(180,0,190,40);

fill(#ff0000);
text("CZUJNIK= " + CZUJNIK, 180,20);
//------------------------
CZUJNIK=(rysuj2(pos1,pos2,X,Y));

k=k+1;
println(k);
//if(k==1) //ZABEZPIECZENIA JEŚLI SPRAWDZAM 1 KLATKE
//stop();
}
//KONIEC
//-------------------------------------------
//-------------------------------------------
//FUNKCJE
float zao(float x)
{
x=x*10;
x=round(x);
x=x/10;
return(x);
}

//-------------------------------------------
//-------------------------------------------
float rysuj2(PVector pos1,PVector pos2,int X,int Y)
{
//a i b to współczynniki
float a=0;
float b=0;
color black=#000000;//KOLOR CZARNY
color cp;//BADANY KOLOR
float odl=0;
//------------------------
//OBLICZENIA FUNKCJI
a=(pos2.y-pos1.y);
a=a/(pos2.x-pos1.x);
b=pos1.y-a*pos1.x;
//------------------------


//------------------------
stroke(#FF0000);
if(pos1.x==pos2.x)
{
if(pos1.y>pos2.y)
for(y=int(pos1.y);Error!=1;y++)
{
if(y==Y)
{ Error=1;}
if(y==0)
{ Error=1;}
fill(#ff0000);
stroke(#ff0000);
//println(pos2.x+" "+y);
cp=get(int(pos1.x),y);
if(cp==black)
{Error=1;
odl=(pos1.y-y);}
point(pos2.x,y);
}
else
for(y=int(pos1.y);Error!=1;y--)
{
if(y==Y)
{ Error=1;}
if(y==0)
{ Error=1;}
fill(#ff0000);
stroke(#ff0000);
// println(pos2.x+" "+y);
cp=get(int(pos1.x),y);
if(cp==black)
{Error=1;
odl=(pos1.y-y);}
point(pos2.x,y);
}
Error=0;
return(odl);
}
//-------------------------------------------
//-------------------------------------------
if(pos1.x>pos2.x)
for(x=int(pos1.x);Error!=1;x++)
{
y=int(a*x+b);

if(x==X)
{ Error=1;}
if(x==0)
{ Error=1;}
if(y==Y)
{ Error=1;}
if(y==0)
{ Error=1;}
//------------------------

cp=get(x,y);
if(cp==black)
{Error=1;
odl=(pos1.x-x)*(pos1.x-x)+(pos1.y-y)*(pos1.y-y);
odl=sqrt(odl);}

point(x,y);
}
else
for(x=int(pos1.x);Error!=1;x--)
{
y=int(a*x+b);

if(x==X)
{ Error=1;}
if(x==0)
{ Error=1;}
if(y==Y)
{ Error=1;}
if(y==0)
{ Error=1;}
//------------------------

cp=get(x,y);
if(cp==black)
{Error=1;
odl=(pos1.x-x)*(pos1.x-x)+(pos1.y-y)*(pos1.y-y);
odl=sqrt(odl);}
point(x,y);
}
Error=0;
x=0;
y=0;
return(odl);
}
//-------------------------------------------
//-------------------------------------------
void keyPressed()
{
if(key=='q')
{exit(); }

}
//-------------------------------------------
//-------------------------------------------

image made from dice
[9Replies]
- 14-Feb-2012 01:24 PM
- Forum: General Discussion
- Sub forum: Other
Hi.I am new here. Recently i have seen great idea.Man made image from thousand of dice.I had searching and there is link http://dailycontributor.com/amazing-portrait-made-from-thousands-of-dice/21500/
I think this man used some algorithm.I have some questions.How that kind of algorithm work?I have some idea. http://imageshack.us/photo/my-images/51/dicex.png/ We have got 9 dice posibilities.
I thing that I should load image and get information from 81 pixels for example.Next I should divided it into 9 section.In each section i have got 9 pixels from which i get average information and interpret as if it be one "big pixel".
I shouldn't have problem which that.
I presented image in link.
What should I do when for example "big pixel" 1 and 7 are black and the rest are white? I ought to interpret it as if it be dice which number 2 ? or 1? Maybe i should use more advanced algorithm and that "big pixel" compare to another from another "dice".Sorry for my english i know he isn't good enought.Thanks for reply:)

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