add comments ( see #295)

Signed-off-by: Martin Veillette <[email protected]>
phetsims · Mar 17, 2023 · 7813dda · 7813dda
1 parent bda7ba1
commit 7813dda
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/js/common/model/TransformedCurve.ts b/js/common/model/TransformedCurve.ts
@@ -782,6 +782,7 @@ export default class TransformedCurve extends Curve {
       // We need to identify the points where the transitions happen. Those points will be labeled cusps or discontinuities
       if ( wasPreviousPointModified !== null && wasPreviousPointModified !== isModified ) {
 
+        // we always label discontinuities and cusps on an adjacent pair of points.
         const rightPoint = point;
         const leftPoint = this.points[ index - 1 ];