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arrayIndexOutOfBoundsException:1

[3 Replies]
- 23-Nov-2010 03:14 AM
- Forum: Programming Questions
Can anyone help me to understand why I get this exception.?

I modified Fry's Visualizing Data example about maps with single rollovers.

Here is the main code exctly the same of fry's:
2. PImage mapImage;
3. Table locationTable;
4. Table nameTable;
5. int rowCount;
7. Table dataTable;
8. float dataMin = MAX_FLOAT;
9. float dataMax = MIN_FLOAT;
12. void setup() {
13. size(640, 500);
14. mapImage = loadImage("mappa.png");
15. locationTable = new Table("locations.tsv");
16. rowCount = locationTable.getRowCount();
18. // Read the data table
19. dataTable = new Table("random.tsv");
20. nameTable= new Table("names.tsv");
22. // Find the minimum and maximum values
23. for (int row = 0; row < rowCount; row++) {
24. float value = dataTable.getFloat(row, 1);
25. if (value > dataMax) {
26. dataMax = value;
27. }
28. if (value < dataMin) {
29. dataMin = value;
30. }
31. }
33. PFont font = loadFont("Helvetica-Bold-12.vlw");
34. textFont(font);
36. smooth();
37. noStroke();
38. }
40. float closestDist;
41. String closestText;
42. float closestTextX;
43. float closestTextY;
47. void draw() {
48. background(255);
49. image(mapImage, 0, 0);
51. closestDist = MAX_FLOAT;
53. for (int row = 0; row < rowCount; row++) {
54. String abbrev = dataTable.getRowName(row);
55. float x = locationTable.getFloat(abbrev, 1);
56. float y = locationTable.getFloat(abbrev, 2);
57. drawData(x, y, abbrev);
58. }
60. // Use global variables set in drawData()
61. // to draw text related to closest circle.
62. if (closestDist != MAX_FLOAT) {
63. fill(0); textAlign(CENTER);
64. text(closestText, closestTextX, closestTextY);
65. }
66. }
69. void drawData(float x, float y, String abbrev) {
70. float value = dataTable.getFloat(abbrev, 1);
71. float radius = 0;
72. if (value >= 0) {
73. radius = map(value, 0, dataMax, 1.5, 15);
74. fill(#333366); // blue
75. } else {
76. radius = map(value, 0, dataMin, 1.5, 15);
77. fill(#ec5166); // red
78. }
79. ellipseMode(RADIUS);
80. ellipse(x, y, radius, radius);
82. float d = dist(x, y, mouseX, mouseY);
83. // Because the following check is done each time a new
84. // circle is drawn, we end up with the values of the
85. // circle closest to the mouse.
86. if ((d < radius + 2) && (d < closestDist)) {
87. closestDist = d;
88. String name = nameTable.getString(abbrev, 1);
89. closestText = name + " " + value;
90. closestTextX = x;
91. closestTextY = y-radius-4;
92. }
93. }
Here is the code for Table I get the exception in line 56:
2. class Table {
3. int rowCount;
4. String[][] data;
7. Table(String filename) {
8. String[] rows = loadStrings(filename);
9. data = new String[rows.length][];
11. for (int i = 0; i < rows.length; i++) {
12. if (trim(rows[i]).length() == 0) {
13. continue; // skip empty rows
14. }
15. if (rows[i].startsWith("#")) {
16. continue; // skip comment lines
17. }
19. // split the row on the tabs
20. String[] pieces = split(rows[i], TAB);
21. // copy to the table array
22. data[rowCount] = pieces;
23. rowCount++;
25. // this could be done in one fell swoop via:
26. //data[rowCount++] = split(rows[i], TAB);
27. }
28. // resize the 'data' array as necessary
29. data = (String[][]) subset(data, 0, rowCount);
30. }
33. int getRowCount() {
34. return rowCount;
35. }
38. // find a row by its name, returns -1 if no row found
39. int getRowIndex(String name) {
40. for (int i = 0; i < rowCount; i++) {
41. if (data[i][0].equals(name)) {
42. return i;
43. }
44. }
45. println("No row named '" + name + "' was found");
46. return -1;
47. }
50. String getRowName(int row) {
51. return getString(row, 0);
52. }
55. String getString(int rowIndex, int column) {
56. return data[rowIndex][column];
57. }
60. String getString(String rowName, int column) {
61. return getString(getRowIndex(rowName), column);
62. }
65. int getInt(String rowName, int column) {
66. return parseInt(getString(rowName, column));
67. }
70. int getInt(int rowIndex, int column) {
71. return parseInt(getString(rowIndex, column));
72. }
75. float getFloat(String rowName, int column) {
76. return parseFloat(getString(rowName, column));
77. }
80. float getFloat(int rowIndex, int column) {
81. return parseFloat(getString(rowIndex, column));
82. }
83. }
I'll post the tsv files as well.

locations.tsv
2. AQ 439 270
3. BR 94 325
4. CH 148 241
5. CI 368 247
6. DR 56 176
7. GI 220 183
8. IS 376 120
9. LE 256 166
10. LU 110 331
11. NI 278 267
12. OC 232 380
13. ON 143 101
14. PA 405 168
15. SE 437 165
16. TA 357 147
17. TO 302 194
18. VA 453 203
random.tsv
2. AQ 0.1
3. BR -5.3
4. CH 3
5. CI 7
6. DR 11
7. GI 1.5
8. IS -6.7
9. LE -4
10. LU 9
11. NI -2.2
12. OC -3.3
13. ON 6.6
14. PA 7.2
15. SE 7.1
16. TA 6.9
17. TO 6
18. VA 1.8
names.tsv
2. AQ Aquila
3. BR Bruco
4. CH Chiocciola
5. CI Civetta
6. DR Drago
7. GI Giraffa
8. IS Istrice
9. LE Leocorno
10. LU Lupa
11. NI Nicchio
12. OC Oca
13. ON Onda
14. PA Pantera
15. SE Selva
16. TA Tartuca
17. TO Torre
18. VA Valdimontone
Thank you in advance for the help

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