diff --git a/src/components/three/SmartMeasure.ts b/src/components/three/SmartMeasure.ts
index fda52d5..0e87746 100644
--- a/src/components/three/SmartMeasure.ts
+++ b/src/components/three/SmartMeasure.ts
@@ -270,7 +270,7 @@ export function findNearestEdgeSegment(
   const hitX = (hitScreen.x * 0.5 + 0.5) * canvasSize.width;
   const hitY = (-hitScreen.y * 0.5 + 0.5) * canvasSize.height;
 
-  const matrix = edgeLines ? edgeLines.matrixWorld.clone().premultiply(mesh.matrixWorld) : mesh.matrixWorld;
+  const matrix = edgeLines ? edgeLines.matrixWorld : mesh.matrixWorld;
 
   let bestDist = Infinity;
   let bestMid: THREE.Vector3 | null = null;
@@ -340,7 +340,7 @@ export function detectCircularEdgeAtPoint(
   const posAttr = geo.attributes.position;
   if (!posAttr) return null;
 
-  const matrix = edgeLines ? edgeLines.matrixWorld.clone().premultiply(mesh.matrixWorld) : mesh.matrixWorld;
+  const matrix = edgeLines ? edgeLines.matrixWorld : mesh.matrixWorld;
 
   const hitScreen = worldPoint.clone().project(camera);
   const hitX = (hitScreen.x * 0.5 + 0.5) * canvasSize.width;
@@ -523,7 +523,7 @@ export function findNearestEdgeSegment3D(
   const posAttr = geo.attributes.position;
   if (!posAttr) return null;
 
-  const matrix = edgeLines ? edgeLines.matrixWorld.clone().premultiply(mesh.matrixWorld) : mesh.matrixWorld;
+  const matrix = edgeLines ? edgeLines.matrixWorld : mesh.matrixWorld;
   const invMatrix = new THREE.Matrix4().copy(matrix).invert();
   const localPoint = worldPoint.clone().applyMatrix4(invMatrix);
 
@@ -579,7 +579,7 @@ export function detectCircularEdgeAtPoint3D(
   const posAttr = geo.attributes.position;
   if (!posAttr) return null;
 
-  const matrix = edgeLines ? edgeLines.matrixWorld.clone().premultiply(mesh.matrixWorld) : mesh.matrixWorld;
+  const matrix = edgeLines ? edgeLines.matrixWorld : mesh.matrixWorld;
   const invMatrix = new THREE.Matrix4().copy(matrix).invert();
   const localPoint = worldPoint.clone().applyMatrix4(invMatrix);