add sample extrusion capability

src/main/mesh.js

@@ -234,6 +234,9 @@ function space_init(data) {
                 case 'KeyR':
                     return shiftKey ? api.tool.rebuild() : api.tool.repair();
                 case 'KeyE':
+                    if (api.mode.is([ api.modes.sketch ])) {
+                        return api.sketch.extrude();
+                    }
                     return api.tool.clean();
                 case 'KeyV':
                     return shiftKey ? selection.show() : selection.focus();

src/mesh/api.js

@@ -428,6 +428,12 @@ let sketch = {
 
     list() {
         return sketches;
+    },
+
+    extrude() {
+        selection.sketches(true).forEach(sketch => {
+            sketch.extrude();
+        });
     }
 };
 
@@ -1205,7 +1211,7 @@ const api = exports({
 });
 
 function log() {
-    api.log.emit(...arguments);
+    return api.log.emit(...arguments);
 }
 
 const { broker } = gapp;

src/mesh/model.js

@@ -368,7 +368,12 @@ mesh.model = class MeshModel extends mesh.object {
             this._wire = undefined;
             this.opacity({restore: true});
         }
-        if (bool) {
+        if (bool === 'edges') {
+            let edges = new THREE.EdgesGeometry(this.mesh.geometry, 5);
+            this._wire = new THREE.LineSegments(edges, materials.wireframe);
+            this.mesh.add(this._wire);
+            this.opacity({temp: opt.opacity || 0.15});
+        } else if (bool) {
             this._wire = new Mesh(this.mesh.geometry.shallowClone(), materials.wireframe);
             this.mesh.add(this._wire);
             this.opacity({temp: opt.opacity || 0.15});

src/mesh/sketch.js

@@ -240,6 +240,21 @@ mesh.sketch = class MeshSketch extends mesh.object {
         });
         this.update();
     }
+
+    extrude(opt = {}) {
+        let { z } = opt;
+        let models = [];
+        for (let item of this.group.children.filter(c => c.poly)) {
+            let vert = item.poly.extrude(z || 10);
+            let nmdl = new mesh.model({ file: "poly", mesh: vert.toFloat32() });
+            models.push(nmdl);
+        }
+        if (models.length) {
+            log('extrude', this.file || this.id, 'into', models.length, 'solid(s)');
+            let ngrp = api.group.new(models);
+            ngrp.floor();
+        }
+    }
 }
 
 });