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 },
});
}
public static Dictionary <string, Autodesk.DesignScript.Geometry.Curve[]> OffsetPerimeterCurves(this Autodesk.DesignScript.Geometry.Surface surface, double offset)
{
List <Autodesk.DesignScript.Geometry.Curve> srfPerimCrvs = surface.PerimeterCurves().ToList();
Autodesk.DesignScript.Geometry.PolyCurve plyCrv = Autodesk.DesignScript.Geometry.PolyCurve.ByJoinedCurves(srfPerimCrvs);
double inOffset;
double outOffset;
if (offset < 0)
{
inOffset = offset;
outOffset = -offset;
}
else
{
inOffset = -offset;
outOffset = offset;
}
Autodesk.DesignScript.Geometry.Curve[] inPerimCrvs;
try
{
List <Autodesk.DesignScript.Geometry.Curve> inOffsetCrv = new List <Autodesk.DesignScript.Geometry.Curve>()
{
(plyCrv.Offset(inOffset))
};
Autodesk.DesignScript.Geometry.PolyCurve inOffsetPolyCrv = Autodesk.DesignScript.Geometry.PolyCurve.ByJoinedCurves(inOffsetCrv);
List <Autodesk.DesignScript.Geometry.Curve> inOffsetCrvList = inOffsetPolyCrv.Curves().ToList();
List <Autodesk.DesignScript.Geometry.Point> inPts = new List <Autodesk.DesignScript.Geometry.Point>();
foreach (Autodesk.DesignScript.Geometry.Curve c in inOffsetCrvList)
{
inPts.Add(c.StartPoint);
}
Autodesk.DesignScript.Geometry.PolyCurve inOffsetPolyCrv2 = PolyCurve.ByPoints(inPts, true);
Autodesk.DesignScript.Geometry.Surface inOffsetSrf = Autodesk.DesignScript.Geometry.Surface.ByPatch(inOffsetPolyCrv2);
inPerimCrvs = inOffsetSrf.PerimeterCurves();
inOffsetSrf.Dispose();
inOffsetPolyCrv.Dispose();
inOffsetPolyCrv2.Dispose();
}
catch (Exception)
{
inPerimCrvs = null;
}
Autodesk.DesignScript.Geometry.Curve[] outPerimCrvs;
try
{
List <Autodesk.DesignScript.Geometry.Curve> outOffsetCrv = new List <Autodesk.DesignScript.Geometry.Curve>()
{
(plyCrv.Offset(outOffset))
};
Autodesk.DesignScript.Geometry.PolyCurve outOffsetPolyCrv = Autodesk.DesignScript.Geometry.PolyCurve.ByJoinedCurves(outOffsetCrv);
List <Autodesk.DesignScript.Geometry.Curve> outOffsetCrvList = outOffsetPolyCrv.Curves().ToList();
List <Autodesk.DesignScript.Geometry.Point> outPts = new List <Autodesk.DesignScript.Geometry.Point>();
foreach (Autodesk.DesignScript.Geometry.Curve c in outOffsetCrvList)
{
outPts.Add(c.StartPoint);
}
Autodesk.DesignScript.Geometry.PolyCurve outOffsetPolyCrv2 = PolyCurve.ByPoints(outPts, true);
Autodesk.DesignScript.Geometry.Surface outOffsetSrf = Autodesk.DesignScript.Geometry.Surface.ByPatch(outOffsetPolyCrv2);
outPerimCrvs = outOffsetSrf.PerimeterCurves();
outOffsetSrf.Dispose();
outOffsetPolyCrv.Dispose();
outOffsetPolyCrv2.Dispose();
}
catch (Exception)
{
outPerimCrvs = null;
}
Dictionary <string, Autodesk.DesignScript.Geometry.Curve[]> newOutput;
newOutput = new Dictionary <string, Autodesk.DesignScript.Geometry.Curve[]>
{
{ "insetCrvs", inPerimCrvs },
{ "outsetCrvs", outPerimCrvs }
};
//Dispose all redundant geometry
plyCrv.Dispose();
foreach (Autodesk.DesignScript.Geometry.Curve c in srfPerimCrvs)
{
c.Dispose();
}
return(newOutput);
}