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Unfolding and Tilemill: problem with applet export

[1 Reply]
- 23-Jun-2012 12:43 PM
- Forum: Contributed Library Questions
I've got a small Processing sketch that uses Unfolding to implement an interactive .mbtiles map. The sketch works fine within Processing, but when I export it and load up the applet I just get a white screen in the applet box. Any ideas how to fix this? I have a hunch it might have to do with the sqlite database that Unfolding uses. Code is below. Thanks!
2. import toxi.math.conversion.*;
3. import toxi.geom.*;
4. import toxi.math.*;
5. import toxi.geom.mesh2d.*;
6. import toxi.util.datatypes.*;
7. import toxi.util.events.*;
8. import toxi.geom.mesh.subdiv.*;
9. import toxi.geom.mesh.*;
10. import toxi.math.waves.*;
11. import toxi.util.*;
12. import toxi.math.noise.*;
13. import processing.opengl.*;
14. import codeanticode.glgraphics.*;
15. import de.fhpotsdam.unfolding.*;
16. import de.fhpotsdam.unfolding.core.*;
17. import de.fhpotsdam.unfolding.geo.*;
18. import de.fhpotsdam.unfolding.utils.*;
19. import de.fhpotsdam.unfolding.providers.*;
20. import de.fhpotsdam.unfolding.tiles.MBTilesLoaderUtils;
21. import de.fhpotsdam.unfolding.mapdisplay.AbstractMapDisplay;
22. import controlP5.*;
23. import org.json.*;
26. public ArrayList<Polygon2D> polygonListProv = new ArrayList<Polygon2D>();
27. public ArrayList<ArrayList<Polygon2D>> polygonListAll = new ArrayList<ArrayList<Polygon2D>>();
28. public JSONArray coordinates5;
29. public int idpoly;
31. public de.fhpotsdam.unfolding.Map map;
34. public void setup() {
35. size(800, 600, GLConstants.GLGRAPHICS);
36. smooth();
37. frameRate(240);
39. try {
40. JSONObject json = new JSONObject(join(loadStrings("bts_prov_ms2.json"), ""));
41. JSONArray provinces = json.getJSONArray("features");
42. JSONObject pObject = provinces.getJSONObject(0);
43. JSONObject geometry = pObject.getJSONObject("geometry");
44. JSONArray coordinates1 = geometry.getJSONArray("coordinates");
45. ArrayList<Polygon2D> province = new ArrayList<Polygon2D>();
46. JSONArray vertex;
47. Polygon2D poly;
48. JSONArray coordinates2;
49. // start the loop over provinces here
50. for (int k = 0; k < 33; k++) {
51. int idpoly = k;
52. //println(polygonListAll.size());
53. //println(idpoly);
54. pObject = provinces.getJSONObject(idpoly);
55. geometry = pObject.getJSONObject("geometry");
56. //println(geometry);
57. coordinates1 = geometry.getJSONArray("coordinates");
58. province = new ArrayList<Polygon2D>();
60. // Collect all the polygons for each province
61. for (int i = 0; i < coordinates1.length(); i++) {
62. //make a new Polygon2D for this province //pyk add
63. poly = new Polygon2D(); //pyk add
65. //Multi-polygon
66. if (coordinates1.length()>1) {
67. coordinates2 = coordinates1.getJSONArray(i);
68. coordinates5 = coordinates2.getJSONArray(0);
69. //Single polygon
70. } else {
71. coordinates5 = coordinates1.getJSONArray(i);
72. }
74. // Collect all the vectors for each polygon
75. for (int j = 0; j < coordinates5.length(); j++) {
76. vertex = coordinates5.getJSONArray(j); //can move this outside all of the loops if needed
77. poly.add(new Vec2D((float) vertex.getDouble(1), (float) vertex.getDouble(0))); //pyk add
78. }
79. //println(poly.getNumPoints());
80. province.add(poly);
81. //println(poly.getNumPoints());
82. }
83. polygonListAll.add(province); //pyk add
84. int verticesCount = 0;
85. for(int i = 0; i<province.size();i++) {
86. verticesCount = verticesCount + province.get(i).getNumPoints();
87. }
88. println("In province " + k + " there are "+province.size()+ " polygons and "+verticesCount+" vertices.");
90. }
91. }
92. catch (JSONException e) {
93. println(e.toString());
94. println(idpoly);
95. }
96. //println(idpoly);
98. map = new de.fhpotsdam.unfolding.Map(this, new MBTilesMapProvider("jdbc:sqlite:" + dataPath("C:/Users/Eric/Documents/Processing/mapDemo2/data/indonesia_cf4fb2.mbtiles") + ""));
99. MapUtils.createDefaultEventDispatcher(this, map);
100. //map.setZoomRange(4, 8);
101. //map.setTweening(true);
102. map.zoomAndPanTo(new Location(-5.0,120.0), 5);
103. //map.setBackgroundColor(color(60, 70, 10));
105. }
107. public void draw() {
108. map.draw();
109. Location mouseLocation = map.getLocationFromScreenPosition(mouseX, mouseY);
110. float mouseLat = mouseLocation.getLat();
111. float mouseLon = mouseLocation.getLon();
112. Vec2D pnow = new Vec2D(mouseLat, mouseLon);
113. fill(0);
114. //text(mouseLat + "," + mouseLon, mouseX, mouseY);
116. for(ArrayList<Polygon2D> p:polygonListAll) {
117. for(Polygon2D q:p) {
118. if (q.containsPoint(pnow)) {
119. text(polygonListAll.indexOf(p),mouseX,mouseY);
120. }
121. }
122. }
125. /*
126. if (hover on province) {
127. highlight in white?;
128. }
129. if (single-click on province) {
130. map.zoomAndPanTo(new Location(provincePoly.centroid),6);
131. }
132. */
133. }

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