Simple single-color 8x8x8 LED Cube with AVRs
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  1. /*
  2. * Led3D.java
  3. *
  4. *
  5. * Copyright 2012 Thomas Buck <xythobuz@me.com>
  6. * Copyright 2012 Max Nuding <max.nuding@gmail.com>
  7. *
  8. * This file is part of LED-Cube.
  9. *
  10. * LED-Cube is free software: you can redistribute it and/or modify
  11. * it under the terms of the GNU General Public License as published by
  12. * the Free Software Foundation, either version 3 of the License, or
  13. * (at your option) any later version.
  14. *
  15. * LED-Cube is distributed in the hope that it will be useful,
  16. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  18. * GNU General Public License for more details.
  19. *
  20. * You should have received a copy of the GNU General Public License
  21. * along with LED-Cube. If not, see <http://www.gnu.org/licenses/>.
  22. */
  23. import com.sun.j3d.utils.universe.*;
  24. import com.sun.j3d.utils.geometry.*;
  25. import javax.media.j3d.*;
  26. import javax.vecmath.*;
  27. import com.sun.j3d.utils.behaviors.mouse.*;
  28. import com.sun.j3d.utils.image.TextureLoader;
  29. import java.awt.Toolkit;
  30. import com.sun.j3d.utils.picking.*;
  31. import java.awt.event.*;
  32. /**
  33. * This class is responsible for displaying the 3D View of our Cube.
  34. *
  35. * @author Thomas Buck
  36. * @author Max Nuding
  37. * @version 1.0
  38. */
  39. public class Led3D extends MouseAdapter {
  40. private Canvas3D canvas = null;
  41. private PickCanvas pickCanvas = null;
  42. private SimpleUniverse universe = null;
  43. private BranchGroup group = null;
  44. private BranchGroup group2 = null;
  45. private Transform3D trans3D = null;
  46. private TransformGroup transGroup = null;
  47. private TransformGroup feetGroup = null;
  48. private Matrix4d mat = null;
  49. private Matrix4d fullScreenMat = null;
  50. private Frame parentFrame = null;
  51. private boolean inFullscreen = false;
  52. private boolean showLegs = true;
  53. private Sphere[][][] leds = new Sphere[8][8][8];
  54. private static ColoringAttributes redColor = new ColoringAttributes(
  55. new Color3f(1.0f, 0.0f, 0.0f), ColoringAttributes.FASTEST);
  56. private static ColoringAttributes whiteColor = new ColoringAttributes(
  57. new Color3f(0.2f, 0.2f, 0.2f), ColoringAttributes.FASTEST);
  58. private static Material whiteMat = new Material(new Color3f(0.2f, 0.2f,
  59. 0.2f), new Color3f(0.0f, 0.0f, 0.0f),
  60. new Color3f(0.2f, 0.2f, 0.2f), new Color3f(0.2f, 0.2f, 0.2f), 64.0f);
  61. private static Material redMat = new Material(
  62. new Color3f(1.0f, 0.0f, 0.0f), new Color3f(1.0f, 0.0f, 0.0f),
  63. new Color3f(1.0f, 0.0f, 0.0f), new Color3f(1.0f, 0.0f, 0.0f), 64.0f);
  64. private Background background;
  65. private Appearance feetApp = new Appearance();
  66. public void toggleLegs(){
  67. if(showLegs){
  68. group2.detach();
  69. } else {
  70. universe.addBranchGraph(group2);
  71. Transform3D t = new Transform3D();
  72. transGroup.getTransform(t);
  73. feetGroup.setTransform(t);
  74. }
  75. showLegs = !showLegs;
  76. }
  77. /**
  78. * @param canv The Canvas3D we render our cube in
  79. */
  80. public Led3D(Canvas3D canv, Frame f) {
  81. canvas = canv;
  82. parentFrame = f;
  83. group = new BranchGroup();
  84. group2 = new BranchGroup();
  85. // Position viewer, so we are looking at object
  86. trans3D = new Transform3D();
  87. mat = new Matrix4d();
  88. mat.setRow(0, 0.7597, -0.0204, 0.64926, 0.56);
  89. mat.setRow(1, -0.08, -0.995, 0.061, 0.02);
  90. mat.setRow(2, 0.64473, -0.09786, -0.758, -14.68);
  91. mat.setRow(3, 0.0, 0.0, 0.0, 1.0);
  92. fullScreenMat = new Matrix4d();
  93. fullScreenMat.setRow(0, 0.7597, -0.0204, 0.64926, 0.68);
  94. fullScreenMat.setRow(1, -0.08, -0.995, 0.061, 0.44);
  95. fullScreenMat.setRow(2, 0.64473, -0.09786, -0.758, -22.88);
  96. fullScreenMat.setRow(3, 0.0, 0.0, 0.0, 1.0);
  97. trans3D.set(mat);
  98. transGroup = new TransformGroup(trans3D);
  99. transGroup.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
  100. transGroup.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
  101. feetGroup = new TransformGroup(trans3D);
  102. feetGroup.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
  103. feetGroup.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
  104. ViewingPlatform viewingPlatform = new ViewingPlatform();
  105. Viewer viewer = new Viewer(canvas);
  106. universe = new SimpleUniverse(viewingPlatform, viewer);
  107. BoundingBox boundBox = new BoundingBox(new Point3d(-5.0, -5.0, -5.0),
  108. new Point3d(13.0, 13.0, 13.0));
  109. // roration with left mouse button
  110. MouseRotate behaviour = new MouseRotate(transGroup);
  111. behaviour.setSchedulingBounds(boundBox);
  112. transGroup.addChild(behaviour);
  113. MouseRotate feetBehaviour = new MouseRotate(feetGroup);
  114. feetBehaviour.setSchedulingBounds(boundBox);
  115. feetGroup.addChild(feetBehaviour);
  116. // zoom with middle mouse button
  117. MouseZoom beh2 = new MouseZoom(transGroup);
  118. beh2.setSchedulingBounds(boundBox);
  119. transGroup.addChild(beh2);
  120. MouseZoom feetBeh2 = new MouseZoom(feetGroup);
  121. feetBeh2.setSchedulingBounds(boundBox);
  122. feetGroup.addChild(feetBeh2);
  123. // move with right mouse button
  124. MouseTranslate beh3 = new MouseTranslate(transGroup);
  125. beh3.setSchedulingBounds(boundBox);
  126. transGroup.addChild(beh3);
  127. MouseTranslate feetBeh3 = new MouseTranslate(feetGroup);
  128. feetBeh3.setSchedulingBounds(boundBox);
  129. feetGroup.addChild(feetBeh3);
  130. group.setCapability(BranchGroup.ALLOW_CHILDREN_READ);
  131. group.setCapability(BranchGroup.ALLOW_CHILDREN_WRITE);
  132. group.setCapability(BranchGroup.ALLOW_DETACH);
  133. group2.setCapability(BranchGroup.ALLOW_CHILDREN_READ);
  134. group2.setCapability(BranchGroup.ALLOW_CHILDREN_WRITE);
  135. group2.setCapability(BranchGroup.ALLOW_DETACH);
  136. background = createBackground();
  137. group.addChild(background);
  138. // Add all our led sphares to the universe
  139. for (int x = 0; x < 8; x++) {
  140. for (int y = 0; y < 8; y++) {
  141. for (int z = 0; z < 8; z++) {
  142. Appearance a = new Appearance();
  143. a.setMaterial(whiteMat);
  144. a.setColoringAttributes(whiteColor);
  145. leds[x][y][z] = new Sphere(0.08f,
  146. Sphere.ENABLE_APPEARANCE_MODIFY, a);
  147. TransformGroup tg = new TransformGroup();
  148. Transform3D transform = new Transform3D();
  149. Vector3f vector = new Vector3f(x - 3.5f, y -3.5f, z-3.5f);
  150. transform.setTranslation(vector);
  151. tg.setTransform(transform);
  152. tg.addChild(leds[x][y][z]);
  153. transGroup.addChild(tg);
  154. drawLedFeetVertical((double) x - 3.5, y - 3, (double) z-3.5, 0.9f, 0.01f);
  155. if (x < 7)
  156. drawLedFeetHorizontal(x - 3, (double) y - 3.5, (double) z - 3.5, 0.9f, 0.01f, 0);
  157. }
  158. }
  159. // 8 times, use x as y
  160. for(int i = 0; i > -8; i--){
  161. drawLedFeetHorizontal(i+3.5, (double) x-3.5, 0, 7.0f, 0.02f, 90);
  162. }
  163. }
  164. /*drawLedFeetVertical(5, 5, -5, 50, 0.02f); //
  165. drawLedFeetHorizontal(5, 5, -5, 50, 0.02f, 0); // x, y, and z axis
  166. drawLedFeetHorizontal(5, 5, -5, 50, 0.02f, 90);
  167. Appearance c = new Appearance();
  168. c.setMaterial(redMat);
  169. c.setColoringAttributes(redColor);
  170. Sphere center = new Sphere(0.05f, Sphere.ENABLE_APPEARANCE_MODIFY, c);
  171. TransformGroup tg = new TransformGroup();
  172. Transform3D transform = new Transform3D();
  173. Vector3f vector = new Vector3f(5, 5, -5);
  174. transform.setTranslation(vector);
  175. tg.setTransform(transform);
  176. tg.addChild(center);
  177. feetGroup.addChild(tg);*/
  178. // Add an ambient light
  179. Color3f light2Color = new Color3f(1.0f, 1.0f, 1.0f);
  180. AmbientLight light2 = new AmbientLight(light2Color);
  181. BoundingSphere bounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0),
  182. 100.0);
  183. light2.setInfluencingBounds(bounds);
  184. light2.setEnable(true);
  185. transGroup.addChild(light2);
  186. group.addChild(transGroup);
  187. group2.addChild(feetGroup);
  188. universe.addBranchGraph(group); // Add group to universe
  189. universe.addBranchGraph(group2);
  190. // Mouse-Selectable objects
  191. pickCanvas = new PickCanvas(canvas, group);
  192. pickCanvas.setMode(PickCanvas.BOUNDS);
  193. canvas.addMouseListener(this);
  194. }
  195. /**
  196. * Listen for mouse events so the user can click on LEDs.
  197. * @param e MouseEvent generated by the user
  198. */
  199. public void mouseClicked(MouseEvent e) {
  200. pickCanvas.setShapeLocation(e);
  201. PickResult result = pickCanvas.pickClosest();
  202. if (result != null) {
  203. // User clicked near something
  204. Primitive p = (Primitive)result.getNode(PickResult.PRIMITIVE);
  205. if (p != null) {
  206. // p is now a Primitive that the user clicked
  207. if (p.getClass().getName().equals("com.sun.j3d.utils.geometry.Sphere")) {
  208. // p is a Cylinder. Our LEDs are Spheres, so p.equals(led[x][y][z]) does not find anything...
  209. for (int x = 0; x < 8; x++) {
  210. for (int y = 0; y < 8; y++) {
  211. for (int z = 0; z < 8; z++) {
  212. if (p.equals(leds[x][y][z])) {
  213. // Clicked led found!
  214. System.out.println("Clicked LED found: " + x + " " + y + " " + z);
  215. parentFrame.toggleLED(x, y, z);
  216. x = 8;
  217. y = 8;
  218. z = 8;
  219. }
  220. }
  221. }
  222. }
  223. } else {
  224. System.out.println("Clicked, but not a sphere. Clicked object: " + p.getClass().getName());
  225. if(p.getClass().getName().equals("com.sun.j3d.utils.geometry.Cylinder")){
  226. }
  227. }
  228. }
  229. } else {
  230. System.out.println("Clicked, but hit nothing");
  231. }
  232. }
  233. private void drawLedFeetVertical(double x, double y, double z,
  234. float length, float rad) {
  235. // draw Feet going down
  236. feetApp.setMaterial(whiteMat);
  237. feetApp.setColoringAttributes(whiteColor);
  238. Cylinder c = new Cylinder(rad, length, feetApp);
  239. TransformGroup tg = new TransformGroup();
  240. Transform3D transform = new Transform3D();
  241. Vector3d vector = new Vector3d(x, y, z);
  242. transform.setTranslation(vector);
  243. tg.setTransform(transform);
  244. tg.addChild(c);
  245. feetGroup.addChild(tg);
  246. }
  247. private void drawLedFeetHorizontal(double x, double y, double z,
  248. float length, float rad, int deg) {
  249. // draw Feet going down
  250. feetApp.setMaterial(whiteMat);
  251. feetApp.setColoringAttributes(whiteColor);
  252. Cylinder c = new Cylinder(rad, length, feetApp);
  253. TransformGroup tg = new TransformGroup();
  254. Transform3D transform = new Transform3D();
  255. Vector3d vector = new Vector3d(x, y, z);
  256. transform.rotZ(Math.toRadians(90));
  257. if (deg != 0)
  258. transform.rotX(Math.toRadians(deg));
  259. transform.setTranslation(vector);
  260. tg.setTransform(transform);
  261. tg.addChild(c);
  262. feetGroup.addChild(tg);
  263. }
  264. /**
  265. * Rotate the cube back to its initial position.
  266. */
  267. public void resetView() {
  268. Matrix4d mat = new Matrix4d();
  269. if(inFullscreen){
  270. mat.setRow(0, 0.7597, -0.0204, 0.64926, 0.68);
  271. mat.setRow(1, -0.08, -0.995, 0.061, 0.44);
  272. mat.setRow(2, 0.64473, -0.09786, -0.758, -22.88);
  273. mat.setRow(3, 0.0, 0.0, 0.0, 1.0);
  274. } else {
  275. mat.setRow(0, 0.7597, -0.0204, 0.64926, 0.56);
  276. mat.setRow(1, -0.08, -0.995, 0.061, 0.02);
  277. mat.setRow(2, 0.64473, -0.09786, -0.758, -14.68);
  278. mat.setRow(3, 0.0, 0.0, 0.0, 1.0);
  279. }
  280. trans3D.set(mat);
  281. transGroup.setTransform(trans3D);
  282. feetGroup.setTransform(trans3D);
  283. }
  284. /**
  285. * Prints the translation matrix that is changed by moving/rotating the 3D
  286. * Cube with your mouse.
  287. */
  288. public void printTranslationData() {
  289. Matrix4d mat = new Matrix4d();
  290. Transform3D t = new Transform3D();
  291. transGroup.getTransform(t);
  292. t.get(mat);
  293. String s = mat.toString();
  294. System.out.println(s.replaceAll(", ", "\t"));
  295. }
  296. /**
  297. * Sets the data that is displayed by the LEDs
  298. *
  299. * @param data 64 byte array with the data (8 bits/LEDs per byte)
  300. */
  301. public void setData(short[] data) {
  302. for (int y = 0; y < 8; y++) {
  303. for (int z = 0; z < 8; z++) {
  304. for (int x = 0; x < 8; x++) {
  305. Appearance a = new Appearance();
  306. if ((data[y + (z * 8)] & (1 << x)) != 0) {
  307. // Activate led
  308. a.setColoringAttributes(redColor);
  309. a.setMaterial(redMat);
  310. } else {
  311. // Deactivate led
  312. a.setColoringAttributes(whiteColor);
  313. a.setMaterial(whiteMat);
  314. }
  315. leds[x][y][z].setAppearance(a);
  316. }
  317. }
  318. }
  319. }
  320. // create nice background
  321. private Background createBackground() {
  322. Background bg = new Background(1.0f, 1.0f, 1.0f);
  323. int radius = canvas.getWidth();
  324. bg.setApplicationBounds(new BoundingSphere(new Point3d(0.0, 0.0, 0.0), radius));
  325. return bg;
  326. }
  327. /**
  328. * Create new background to reflect changed Canvas size.
  329. */
  330. private void toggleFullscreen() {
  331. group.detach();
  332. if(group.indexOfChild(background) != -1){
  333. group.removeChild(background);
  334. }
  335. background = createBackground();
  336. group.addChild(background);
  337. universe.addBranchGraph(group);
  338. inFullscreen = !inFullscreen;
  339. }
  340. /**
  341. * Create new background and adjust view.
  342. */
  343. public void enterFullscreen() {
  344. toggleFullscreen();
  345. trans3D.set(fullScreenMat);
  346. transGroup.setTransform(trans3D);
  347. feetGroup.setTransform(trans3D);
  348. resetView(); //This is important. For some reason some legs are missing when entering fullscreen mode. Calling this function solves the problem.
  349. }
  350. /**
  351. * Create new background and adjust view.
  352. */
  353. public void leaveFullscreen() {
  354. toggleFullscreen();
  355. trans3D.set(mat);
  356. transGroup.setTransform(trans3D);
  357. feetGroup.setTransform(trans3D);
  358. }
  359. }