GetOperations()->MakeCurveParametric(thexExpr, theyExpr, thezExpr,
theParamMin, theParamMax,
0.0, aType, theParamNbStep, true);
GetOperations()->MakeCurveParametric(thexExpr, theyExpr, thezExpr,
theParamMin, theParamMax,
0.0, aType, theParamNbStep, true);