From d938cd08650279f5c7894793d5fd78ec4068694c Mon Sep 17 00:00:00 2001
From: eleanor-park <eleanor_park@brown.edu>
Date: Sun, 14 Apr 2024 14:25:29 -0400
Subject: working on radius eraser bug

---
 src/client/views/InkingStroke.tsx                                 | 2 +-
 .../collections/collectionFreeForm/CollectionFreeFormView.tsx     | 8 ++++----
 2 files changed, 5 insertions(+), 5 deletions(-)

(limited to 'src/client/views')

diff --git a/src/client/views/InkingStroke.tsx b/src/client/views/InkingStroke.tsx
index 764062682..7e0b2ba92 100644
--- a/src/client/views/InkingStroke.tsx
+++ b/src/client/views/InkingStroke.tsx
@@ -334,7 +334,7 @@ export class InkingStroke extends ViewBoxBaseComponent<FieldViewProps>() impleme
         // const ptsXscale = (NumCast(radius) - NumCast(radius)) / (oldXrange.max - oldXrange.min || 1) || 1;
         // const ptsYscale = (NumCast(doc._height) - NumCast(doc.stroke_width)) / (oldYrange.max - oldYrange.min || 1) || 1;
         // const newPoints = func(this.DocumentView?.(), ink, ptsXscale, ptsYscale, NumCast(radius));
-        const controlPointDistance = 0.552284749831 * radius; // tan(pi / 8) * radius
+        const controlPointDistance = 0.552284749831 * radius; // (4/3) * tan(pi / 8) * radius
         const points: { X: number; Y: number }[] = [
             { X: inkCoords.X + radius, Y: inkCoords.Y }, // right point
             { X: inkCoords.X + radius, Y: inkCoords.Y - controlPointDistance }, // right's top ctrl point
diff --git a/src/client/views/collections/collectionFreeForm/CollectionFreeFormView.tsx b/src/client/views/collections/collectionFreeForm/CollectionFreeFormView.tsx
index a72b499b2..ef4ab55db 100644
--- a/src/client/views/collections/collectionFreeForm/CollectionFreeFormView.tsx
+++ b/src/client/views/collections/collectionFreeForm/CollectionFreeFormView.tsx
@@ -625,8 +625,8 @@ export class CollectionFreeFormView extends CollectionSubView<Partial<collection
                         setupMoveUpEvents(this, e, this.onEraserMove, this.onEraserUp, emptyFunction);
                         break;
                     case InkTool.RadiusEraser:
-                        // this._batch = UndoManager.StartBatch('collectionErase');
-                        // setupMoveUpEvents(this, e, this.onEraserMove, this.onEraserUp, emptyFunction);
+                        this._batch = UndoManager.StartBatch('collectionErase');
+                        setupMoveUpEvents(this, e, this.onEraserMove, this.onEraserUp, emptyFunction);
                         break;
                     case InkTool.None:
                         if (!(this._props.layoutEngine?.() || StrCast(this.layoutDoc._layoutEngine))) {
@@ -847,11 +847,11 @@ export class CollectionFreeFormView extends CollectionSubView<Partial<collection
         const segments: Segment[] = [];
         var segment1: Segment = [];
         var segment2: Segment = [];
-        const eraseWidth = ActiveInkWidth();
+        const eraseRadius = ActiveInkWidth() / 2;
         const inkStroke = ink?.ComponentView as InkingStroke;
         const { inkData } = (inkStroke).inkScaledData();
 
-        const eraserInkData = inkStroke.splitByEraser(inkCoords, eraseWidth);
+        const eraserInkData = inkStroke.splitByEraser(inkCoords, eraseRadius);
 
         const tVals: number[] = []; // should be the tvals of the intersections
 
-- 
cgit v1.2.3-70-g09d2