public static object SnowDrift_ByEdgeHeight(Dyn.Curve edgeCurve, bool flipDirectioin, double snowLoad_ground_psf, double snowLoad_flatRoof_psf, double roofLength_lower_ft, double roofLength_upper_ft, double roofHeight_delta_ft, double adjustmentFactor_ft = 10.0)
{
sDynamoUtilities dynutil = new sDynamoUtilities();
double designLen;
double designHeight;
double designMaxLoad;
double designSnowDensity;
dynutil.GetSnowDriftInformation(snowLoad_ground_psf, snowLoad_flatRoof_psf, roofHeight_delta_ft, roofLength_lower_ft, roofLength_upper_ft, out designLen, out designHeight, out designMaxLoad, out designSnowDensity);
double fac = designLen;
if (flipDirectioin)
{
fac *= -1;
}
Dyn.PolyCurve edgeCrvEx = Dyn.PolyCurve.ByJoinedCurves(new Dyn.Curve[1] {
edgeCurve.ExtendStart(adjustmentFactor_ft).ExtendEnd(adjustmentFactor_ft)
});
Dyn.PolyCurve driftCrv_onRoof = Dyn.PolyCurve.ByJoinedCurves(new Dyn.Curve[1] {
edgeCrvEx.Offset(fac)
});
Dyn.PolyCurve driftCrv_onEdge = Dyn.PolyCurve.ByJoinedCurves(new Dyn.Curve[1] {
edgeCrvEx.Translate(Dyn.Vector.ZAxis().Scale(designHeight)) as Dyn.Curve
});
List <Dyn.Solid> snows = new List <Dyn.Solid>();
for (int i = 0; i < driftCrv_onRoof.NumberOfCurves; ++i)
{
List <Dyn.PolyCurve> cs = new List <Dyn.PolyCurve>();
cs.Add(Dyn.PolyCurve.ByPoints(new Dyn.Point[3] {
driftCrv_onRoof.CurveAtIndex(i).StartPoint, driftCrv_onEdge.CurveAtIndex(i).StartPoint, edgeCrvEx.CurveAtIndex(i).StartPoint
}, true));
cs.Add(Dyn.PolyCurve.ByPoints(new Dyn.Point[3] {
driftCrv_onRoof.CurveAtIndex(i).EndPoint, driftCrv_onEdge.CurveAtIndex(i).EndPoint, edgeCrvEx.CurveAtIndex(i).EndPoint
}, true));
snows.Add(Dyn.Solid.ByLoft(cs));
}
Dyn.Solid snowSolid = Dyn.Solid.ByUnion(snows);
// edgeCrvEx.Dispose();
// driftCrv_onEdge.Dispose();
// driftCrv_onRoof.Dispose();
return(new Dictionary <string, object>
{
{ "DesignLength_ft", designLen },
{ "DesignHeight_ft", designHeight },
{ "DesignMaxLoad_psf", designMaxLoad },
{ "DesignDensity_pcf", designSnowDensity },
{ "DrfitVolumeSolid", snowSolid },
});
}
