create body isolation function

src/kiri/core/init.js

@@ -1775,6 +1775,7 @@ function init_two() {
     $('mesh-export-stl').onclick = () => { objectsExport('stl') };
     $('mesh-export-obj').onclick = () => { objectsExport('obj') };
     $('mesh-merge').onclick = selection.merge;
+    $('mesh-split').onclick = selection.isolateBodies;
     $('context-duplicate').onclick = duplicateSelection;
     $('context-mirror').onclick = mirrorSelection;
     $('context-layflat').onclick = () => { api.event.emit("tool.mesh.lay-flat") };

src/kiri/core/selection.js

@@ -3,6 +3,7 @@
 import { api } from './api.js';
 import { space } from '../../moto/space.js';
 import { THREE } from '../../ext/three.js';
+import { tool as MeshTool } from '../../mesh/tool.js';
 
 const selectedMeshes = [];
 
@@ -206,6 +207,39 @@ function merge() {
     api.platform.select(w);
 }
 
+/**
+ * Isolates the bodies within the selected widgets. If no widgets are selected,
+ * it processes all available widgets. For each widget, it checks if a tool is
+ * associated; if not, it creates a new MeshTool and indexes the vertices.
+ * The function identifies isolated bodies within each widget. If a widget has
+ * a single body, it remains selected. Otherwise, it creates new widgets for
+ * each isolated body and selects them while deleting the original widget.
+ */
+function isolateBodies(){
+    let sel = widgets();
+    console.log('isolate', sel);
+    if (sel.length === 0) {
+        sel = api.widgets.all();
+    }
+    for(let widget of sel){
+        if (!widget.tool) {
+            let tool = widget.tool = new MeshTool();
+            tool.index(widget.getGeoVertices({ unroll: true, translate:true }));
+        }
+        let bodies = widget.tool.isolateBodies()
+        if(bodies.length ==1){
+            api.platform.select(widget);
+        }else{
+            console.log(bodies,Array.from(bodies.entries()))
+            for(let [i,verts] of bodies.entries()){
+                let w = api.platform.load_verts([], verts, `isolate ${i} of ${ widget.anno.file}`);
+                api.platform.select(w)
+            }
+            api.platform.delete(widget);
+        }
+    }
+}
+
 function exportWidgets(format = "stl") {
     let sel = widgets();
     if (sel.length === 0) {
@@ -291,6 +325,7 @@ function setDisabled(bool) {
 export const selection = {
     move,
     merge,
+    isolateBodies,
     scale,
     rotate,
     mirror,

web/kiri/index.html

@@ -286,6 +286,7 @@
                 <div id="ft-mesh" class="grow f-col pop">
                     <div id="ft-mesh-btn">
                         <div><button id="mesh-merge" lk="rc_merg">Merge</button></div>
+                        <div><button id="mesh-split" lk="rc_splt">Isolate Bodies</button></div>
                         <div><button id="mesh-export-obj" lk="rc_xobj">export OBJ</button></div>
                         <div><button id="mesh-export-stl" lk="rc_xstl">export STL</button></div>
                     </div>

web/kiri/lang/en.js

@@ -78,6 +78,7 @@ self.lang['en-us'] = {
     rc_xstl:        "export STL",
     sb_info:        ["print speed","in mm/s"],
     rc_merg:        "merge object meshes",
+    rc_splt:        "isolate bodies",
 
     // DEVICE MENU and related dialogs
     dm_sldt:        "select a device type",