add support for tab additions in lathe mode

src/kiri-mode/cam/topo4.js

@@ -62,7 +62,8 @@ class Topo4 {
 
         this.zBottom = state.zBottom;
         this.resolution = resolution;
-        this.vertices = widget.getGeoVertices().toShared();
+        this.vertices = widget.getGeoVertices();
+        this.tabverts = widget.getTabVertices();
         this.tool = tool.generateProfile(resolution).profile;
         this.maxo = tool.profileDim.maxo * resolution;
         this.diam = tool.fluteDiameter();
@@ -87,7 +88,7 @@ class Topo4 {
     }
 
     async slice(onupdate) {
-        const { vertices, resolution } = this;
+        const { vertices, resolution, tabverts } = this;
 
         const range = this.range = { min: Infinity, max: -Infinity };
         const box = this.box = new THREE.Box2();
@@ -106,6 +107,15 @@ class Topo4 {
         range.min -= this.diam / 2;
         range.max += this.diam / 2;
 
+        // merge in tab vertices (so they don't affect slice range / dimensions)
+        for (let i=0, l=tabverts.length; i<l; i += 3) {
+            const x = tabverts[i];
+            const z = tabverts[i + 2];
+            tabverts[i] = z;
+            tabverts[i + 2] = x;
+        }
+        this.vertices = [].appendAll(vertices).appendAll(tabverts).toFloat32().toShared();
+
         const shards = Math.ceil(Math.min(25, vertices.length / 27000));
         const step = (range.max - range.min) / shards;
 

src/kiri/widget.js

@@ -626,6 +626,22 @@ class Widget {
         this.points = null;
     }
 
+    getTabVertices() {
+        const vert = [];
+        if (this.anno && this.anno.tab) {
+            for (let tab of this.anno.tab) {
+                const { pos, dim, rot } = tab;
+                const box = new THREE.BoxGeometry(dim.x, dim.y, dim.z).toNonIndexed();
+                box.applyMatrix4(
+                    new THREE.Matrix4().makeRotationFromQuaternion(rot)
+                );
+                box.translate(pos.x, pos.y, pos.z);
+                vert.appendAll(box.attributes.position.array);
+            }
+        }
+        return vert;
+    }
+
     getGeoVertices(opt = {}) {
         const { unroll, translate } = opt;
         let geo = this.mesh.geometry;