fix(viewer-lib): Added relative epsilon to section outlines. Added constant epsilon to setting orbit controls position and target (#4781)

packages/viewer-sandbox/src/main.ts

@@ -532,6 +532,9 @@ const getStream = () => {
 
     // Large topological stuff
     // 'https://app.speckle.systems/projects/7a489ac0d4/models/146d5fbe27,3e481c9a58,65b4cf97d5,6d07577256,903850fa6f'
+
+    // Small (microscopic) building
+    // 'https://app.speckle.systems/projects/26e4c4aab5/models/7d5ff72f5b'
   )
 }
 

packages/viewer/src/modules/extensions/controls/SmoothOrbitControls.ts

@@ -316,7 +316,11 @@ export class SmoothOrbitControls extends SpeckleControls {
      */
     const targetPosition = this.getPosition()
     const targetTarget = this.getTarget()
-    if (position.equals(targetPosition) && target.equals(targetTarget)) return
+    const deltaTarget = vector3.subVectors(target, targetTarget).length()
+    const deltaPosition = vector3.subVectors(position, targetPosition).length()
+    const epsilon = 1e-7
+    if (deltaPosition < epsilon) return
+    if (deltaTarget < epsilon) return
 
     const v0 = new Vector3().copy(position)
     const v1 = new Vector3().copy(target)

packages/viewer/src/modules/extensions/sections/SectionOutlines.ts

@@ -356,12 +356,13 @@ export class SectionOutlines extends Extension {
 
   private setSectionPlaneChanged(planes: Plane[]) {
     this.sectionPlanesChanged.length = 0
+    const epsilon = this.viewer.World.getRelativeOffset(0.0001)
     for (let k = 0; k < planes.length; k++) {
       if (
-        Math.abs(this.lastSectionPlanes[k].constant - planes[k].constant) > 0.0001 ||
+        Math.abs(this.lastSectionPlanes[k].constant - planes[k].constant) > epsilon ||
         Math.abs(
           this.lastSectionPlanes[k].normal.length() - planes[k].normal.length()
-        ) > 0.0001
+        ) > epsilon
       )
         this.sectionPlanesChanged.push(planes[k])
       this.lastSectionPlanes[k].copy(planes[k])