Resolve "Faire les modifs nécessaires pour prendre en compte jalhyd#36"

Closes #64 (closed)

src/app/components/section-results/section-results.component.ts

@@ -71,7 +71,7 @@ export class SectionResultsComponent {
                 const l = r["label"];
 
                 const drawLabel = r["drawLabel"];
-                if (drawLabel != undefined)
+                if (drawLabel != undefined && v.vCalc != undefined)
                     this._sectionCanvas.addLevel(v.vCalc, drawLabel + " = " + v.vCalc.toFixed(nDigits), SectionResultsComponent.labelColors[drawLabel]);
             }
             this._sectionCanvas.section = this._sectionResults.section;