Merge pull request #225 from mikhailmtion/feature/add-units

Add feature change units in dimension
Thank you @mikhailmtion 🙂

Author: aka-blackboots

viewer/src/components/display/dimensions/dimension-line.ts

@@ -215,7 +215,7 @@ export class IfcDimensionLine {
   }
 
   private getTextContent() {
-    return `${this.length / IfcDimensionLine.scale} ${IfcDimensionLine.units}`;
+    return `${this.length * IfcDimensionLine.scale} ${IfcDimensionLine.units}`;
   }
 
   private newBoundingBox() {

viewer/src/components/display/dimensions/dimensions.ts

@@ -197,6 +197,17 @@ export class IfcDimensions extends IfcComponent {
     this.currentDimension = undefined;
   }
 
+  setDimensionUnit(units: string) {
+    if (!units) return;
+    if (units === "mm") {
+      IfcDimensionLine.units = units;
+      IfcDimensionLine.scale = 1000;
+    } else if (units === "m") {
+      IfcDimensionLine.units = units;
+      IfcDimensionLine.scale = 1;
+    }
+  }
+
   private drawStart() {
     this.dragging = true;
     const intersects = this.context.castRayIfc();