update preview point rotation. fix state sensitive visuals

src/kiri-mode/cam/slice.js

@@ -157,7 +157,7 @@ CAM.slice = function(settings, widget, onupdate, ondone) {
             slices = [ slices ];
         }
         sliceAll.appendAll(slices);
-        if (axisIndex !== undefined) {
+        if (isIndexed && axisIndex !== undefined) {
             // update slice cam lines to add axis indexing
             for (let slice of slices.filter(s => s.camLines)) {
                 for (let poly of slice.camLines) {