Fix #206 Speed extra result should be calculated in Calc instead of Equation

spec/open-channel/regime_uniforme/regime_uniforme_rect.spec.ts

@@ -26,7 +26,7 @@ function generateRegimeUniforme(sect: acSection): RegimeUniforme {
 let ruRect1 = generateRegimeUniforme(generateRectangularSection());
 
 describe("Class RegimeUniforme / section rectangulaire :", () => {
-    fdescribe("pas de débordement : ", () => {
+    describe("pas de débordement : ", () => {
         beforeEach(() => {
             ruRect1 = generateRegimeUniforme(generateRectangularSection());
             SessionSettings.precision = 1E-7;

src/open-channel/regime_uniforme.ts

@@ -43,10 +43,6 @@ export class RegimeUniforme extends SectionNub {
                 throw new Error("RegimeUniforme.Equation() : invalid variable name " + sVarCalc);
         }
 
-        // Vitesse moyenne
-        const V = this.section.CalcSection("V", this.section.prms.Y.v);
-        r.resultElement.values.V = V.vCalc;
-
         return r;
     }
 
@@ -58,6 +54,11 @@ export class RegimeUniforme extends SectionNub {
      */
     public Calc(sVarCalc?: string, rInit?: number): Result {
         const r = super.Calc(sVarCalc, rInit);
+
+        // Vitesse moyenne
+        const V = this.section.CalcSection("V", this.section.prms.Y.v);
+        r.resultElement.values.V = V.vCalc;
+
         // Est-ce que ça déborde ?
         if (this.section.prms.Y.v > this.section.prms.YB.v) {
             r.resultElement.log.add(new Message(MessageCode.WARNING_SECTION_OVERFLOW));
@@ -73,11 +74,12 @@ export class RegimeUniforme extends SectionNub {
     }
 
     // tslint:disable-next-line:no-empty
-    protected setParametersCalculability() {}
+    protected setParametersCalculability() { }
 
     protected adjustChildParameters(): void {
         this.section.prms.Q.calculability = ParamCalculability.EQUATION;
         this.section.prms.Y.calculability = ParamCalculability.EQUATION;
+        this.section.prms.YB.calculability = ParamCalculability.FREE;
     }
 
     protected exposeResults() {