experimental async threaded cam topo

src/kiri-mode/fdm/client.js

@@ -35,6 +35,7 @@ FDM.init = function(kiri, api) {
     const { ui, uc } = api;
     const rangeVars = {
         // slice
+        // "sliceHeight": LANG.sl_lahi_s,
         "sliceShells": LANG.sl_shel_s,
         "sliceFillType": LANG.fi_type,
         "sliceFillWidth": LANG.fi_wdth_s,

src/kiri-mode/fdm/slice.js

@@ -296,7 +296,7 @@ FDM.slice = function(settings, widget, onupdate, ondone) {
                     z += h;
                 }
             }
-            // reduce slice position by half height
+            // reduce slice position by half layer height
             for (let i=0; i<zi.length; i++) {
                 zi[i] = (zi[i] - zh[i] / 2).round(3);
             }