fix tesselation

Author: xibyte

modules/geom/impl/curve/curve-tess.js

@@ -19,8 +19,12 @@ export function curveTessParams(curve, min, max, tessTol, scale) {
   splits.push(max);
 
   function refine(u1, u2, step) {
-    if (step <  u2 - u1) {
-      const mid = u1 + (u2 - u1) * 0.5;
+    const uDist = u2 - u1;
+    if (uDist < 1e-3) {
+      return
+    }
+    if (step <  uDist) {
+      const mid = u1 + uDist * 0.5;
       refine(u1, mid, step);
       out.push(mid);
       refine(mid, u2, curveStep(curve, mid, tessTol, scale));

web/app/cad/sketch/sketchModel.ts

@@ -369,10 +369,10 @@ export class Contour {
     return cc;
   }
 
-  tessellate(resolution) {
+  tessellate() {
     const tessellation = [];
     for (const segment of this.segments) {
-      const segmentTessellation = segment.tessellate(resolution);
+      const segmentTessellation = segment.tessellate(segment.massiveness() * 0.1);
       //skip last one because it's guaranteed to be closed
       for (let i = 0; i < segmentTessellation.length - 1; ++i) {
         tessellation.push(segmentTessellation[i]);
@@ -382,7 +382,7 @@ export class Contour {
   }
 
   isCCW() {
-    return isCCW(this.tessellate(10));
+    return isCCW(this.tessellate());
   }
 
   reverse() {