BREP boolean operations / debug info

web/app/3d/debug.js

@@ -1,12 +1,49 @@
 import {checkForSelectedFaces} from './actions/action-helpers'
 
-export const DEBUG = false;
+export const DEBUG = true;
 
 export function AddDebugSupport(app) {
   if (!DEBUG) return;
   app.actionManager.registerActions(DebugActions);
   app.ui.registerMenuActions(DebugMenuConfig);
   app.controlBar.add('menu.debug', true);
+  addGlobalDebugActions(app);
+}
+
+function addGlobalDebugActions(app) {
+  window.__DEBUG__ = {
+    AddLine: (a, b) => {
+      app.viewer.workGroup.add(createLine(a, b));
+      app.viewer.render();
+    },
+    AddPoint: (coordinates, or, vector) => {
+      app.viewer.workGroup.add(createPoint(coordinates, or, vector));
+      app.viewer.render();
+    }
+  };
+}
+
+function createLine(a, b) {
+  const debugLineMaterial = new THREE.LineBasicMaterial({color: 0xFA8072, linewidth: 3});
+  const  lg = new THREE.Geometry();
+  lg.vertices.push(a.three());
+  lg.vertices.push(b.three());
+  return new THREE.Line(lg, debugLineMaterial);
+}
+
+function createPoint(x, y, z) {
+  if (!y) {
+    y = x.y;
+    z = x.z;
+    x = x.x;
+  }
+  var geometry = new THREE.SphereGeometry( 5, 16, 16 );
+  var material = new THREE.MeshBasicMaterial( {color: 0x00ff00} );
+  var sphere = new THREE.Mesh(geometry, material);
+  sphere.position.x = x;
+  sphere.position.y = y;
+  sphere.position.z = z;
+  return sphere;
 }
 
 const DebugMenuConfig = {

web/app/3d/modeler-app.js

@@ -17,7 +17,6 @@ import {init as initSample} from './sample'
 import '../../css/app3d.less'
 
 import * as BREPPrimitives from '../brep/brep-primitives'
-import * as BREPAffine from '../brep/operations/affine'
 import * as BREPBool from '../brep/operations/boolean'
 import {SceneSolid} from '../brep/viz/scene-solid'
 
@@ -77,15 +76,13 @@ App.prototype.BREPTest = function() {
     this.viewer.workGroup.add(sceneSolid.cadGroup);
   };
   const box1 = BREPPrimitives.box(500, 500, 500);
-  const box2 = BREPPrimitives.box(500, 500, 500);
+  const box2 = BREPPrimitives.box(500, 500, 500, new Matrix3().translate(250, 250, 250));
 
-  BREPAffine.transform(box2, new Matrix3().translate(250, 250, 250));
-
-  //addToScene(box1);
-  //addToScene(box2);
+  addToScene(box1);
+  addToScene(box2);
 
   const result = BREPBool.union(box1, box2);
-  addToScene(result);
+  //addToScene(result);
   
   this.viewer.render()
   

web/app/brep/brep-builder.js

@@ -46,7 +46,7 @@ export function createPrism(basePoints, height) {
   });
 
   baseFace.debugName = 'base';
-  baseFace.debugName = 'lid';
+  lidFace.debugName = 'lid';
   
   shell.faces.push(baseFace, lidFace);
   return shell;

web/app/brep/brep-primitives.js

@@ -1,13 +1,19 @@
 import * as BREPBuilder from './brep-builder'
+import {Matrix3} from '../math/l3space'
 
-export function box(w, h, d) {
+export function box(w, h, d, tr) {
   const wh = w * 0.5;
   const hh = h * 0.5;
   const dh = d * 0.5;
+  if (!tr) {
+    tr = IDENTITY;
+  }
   return BREPBuilder.createPrism([
-    BREPBuilder.point(-wh, -hh, dh),
-    BREPBuilder.point( wh, -hh, dh),
-    BREPBuilder.point( wh,  hh, dh),
-    BREPBuilder.point(-wh,  hh, dh)
+    tr._apply(BREPBuilder.point(-wh, -hh, dh)),
+    tr._apply(BREPBuilder.point( wh, -hh, dh)),
+    tr._apply(BREPBuilder.point( wh,  hh, dh)),
+    tr._apply(BREPBuilder.point(-wh,  hh, dh))
   ], d);
-}
+}
+
+const IDENTITY = new Matrix3();

web/app/brep/operations/affine.js

@@ -1,6 +0,0 @@
-
-export function transform(shell, matrix) {
-  for (let vertex of shell.vertices) {
-    matrix._apply(vertex.point);
-  }
-}

web/app/brep/operations/boolean.js

@@ -22,8 +22,11 @@ export function union( shell1, shell2 ) {
     
     const seen = new Set();
     const face = faceData.face;
-    const edges = faceData.newEdges.concat(face.outerLoop);
-    
+    if (shell2.faces.indexOf(face) != -1) {
+      continue;
+    }
+    const edges = faceData.newEdges.concat(face.outerLoop.halfEdges);
+    edges.forEach(e => __DEBUG__.AddLine(e.vertexA.point, e.vertexB.point));
     while (true) {
       let edge = edges.pop();
       if (!edge) {
@@ -37,7 +40,10 @@ export function union( shell1, shell2 ) {
         loop.halfEdges.push(edge);
         seen.add(edge);
         let candidates = faceData.vertexToEdge.get(edge.vertexB);
-        edge = findMaxTurningLeft(candidates, face);
+        if (!candidates) {
+          break;
+        }
+        edge = findMaxTurningLeft(edge, candidates);
         if (seen.has(edge)) {
           break;
         }
@@ -47,9 +53,10 @@ export function union( shell1, shell2 ) {
       const newFace = new Face(face.surface);
       newFace.outerLoop = loop;
       newFace.outerLoop.face = newFace;
-      result.push(newFace);
+      result.faces.push(newFace);
     }
   }
+  return result;
 }
 
 function initSolveData(shell, facesData) {
@@ -64,7 +71,7 @@ function initSolveData(shell, facesData) {
   }  
 }
 
-function findMaxTurningLeft(edge, edges, face) {
+function findMaxTurningLeft(edge, edges) {
   edges = edges.slice();
   function edgeVector(edge) {
     return edge.vertexB.point.minus(edge.vertexA.point)._normalize();
@@ -89,6 +96,10 @@ function intersectFaces(shell1, shell2) {
     for (let j = 0; j < shell2.faces.length; j++) {
       const face1 = shell1.faces[i];
       const face2 = shell2.faces[j];
+
+      if (face1.debugName == 'base' && face2.debugName == 'wall_3') {
+        console.log('there');
+      }
       
       const curve = face1.surface.intersect(face2.surface);
 
@@ -125,10 +136,11 @@ function split(face, loop, result, onCurve, direction) {
   }
   for (let i = 0; i < nodes.length; i++) {
     let inNode = nodes[i];
+    if (inNode == null) continue;
     nodes[i] = null;
     let closestIdx = findCloserProjection(nodes, inNode.point);
     if (closestIdx == -1) {
-      throw 'consider me';
+      continue;
     }
     let outNode = nodes[closestIdx];
     
@@ -181,8 +193,8 @@ function splitEdgeByVertex(originHalfEdge, vertex) {
   orig.vertexB = vertex;
   twin.vertexA = vertex;
   
-  orig.loop.push(halfEdge1);
-  twin.loop.push(halfEdge2);
+  orig.loop.halfEdges.push(halfEdge1);
+  twin.loop.halfEdges.push(halfEdge2);
 
   halfEdge1.loop = orig.loop;
   halfEdge2.loop = twin.loop;
@@ -277,6 +289,8 @@ function Node(vertex, normal, splitsEdge) {
   this.vertex = vertex;
   this.normal = normal;
   this.point = vertex.point;
+  this.edge = splitsEdge;
+  __DEBUG__.AddPoint(this.point);
 }
 
 class SolveData {
@@ -299,5 +313,5 @@ function addToListInMap(map, key, value) {
     list = [];
     map.set(key, list);
   }
-  list.add(value);
+  list.push(value);
 }

web/app/brep/viz/scene-solid.js

@@ -50,7 +50,13 @@ export class SceneSolid {
           face.normal = normal;
           face.materialIndex = gIdx ++;
           geom.faces.push(face);
-          //face.color.set(new THREE.Color().setRGB( Math.random(), Math.random(), Math.random()));
+          if (brepFace.debugName == 'base') {
+            face.color.set(new THREE.Color().setHex( 0x000077 ));
+          }
+          if (brepFace.debugName == 'wall_3') {
+            face.color.set(new THREE.Color().setHex( 0x007700 ));
+          }
+
         }
         //view.setFaceColor(polyFace, utils.isSmoothPiece(group.shared) ? 0xFF0000 : null);
         off = geom.vertices.length;