constrain OpenCV values to minor grid positions, see #142

phetsims · May 4, 2022 · a50b30d · a50b30d
1 parent 211ab52
commit a50b30d
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/js/quadrilateral/model/QuadrilateralShapeModel.ts b/js/quadrilateral/model/QuadrilateralShapeModel.ts
@@ -1228,9 +1228,13 @@ class QuadrilateralShapeModel {
 
       // scale the physical positions to the simulation virtual model
       const scaledProposedPositions: VertexWithProposedPosition[] = proposedPositions.map( vertexWithProposedPosition => {
+
+        const virtualPosition = this.model.physicalToVirtualTransform!.modelToViewPosition( vertexWithProposedPosition.proposedPosition );
+        const constrainedPosition = QuadrilateralModel.getClosestMinorGridPosition( virtualPosition );
+
         return {
           vertex: vertexWithProposedPosition.vertex,
-          proposedPosition: this.model.physicalToVirtualTransform!.modelToViewPosition( vertexWithProposedPosition.proposedPosition )
+          proposedPosition: constrainedPosition
         };
       } );