order sharing

src/components/chart/RungBuilder.vue

@@ -126,7 +126,7 @@ const balance100 = computed( {
 watchEffect(()=>{
   const rungs = props.builder.rungs
   // const prev = props.builder.valid
-  props.builder.valid = rungs >= 1 && endpoints.value[0] && (rungs < 2 || endpoints.value[1])
+  props.builder.valid = rungs >= 1 && endpoints.value[0] > 0 && (rungs < 2 || endpoints.value[1])
   // console.log('valid?', prev, props.builder.valid, rungs, valueA.value, valueB.value)
 })
 
@@ -457,6 +457,8 @@ function deleteShapes() {
 
 if (!endpoints.value[0])
   shapeA.createOrDraw(); // initiate drawing mode
+else
+  adjustShapes()
 
 </script>