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www.mxdraw.com
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IMxDrawSpline::GetNurbsData 方法
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www.mxdraw.com
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得到样条线定义数据.
[helpstring("method GetNurbsData")]
HRESULT GetNurbsData([out] LONG* degree, [out] VARIANT_BOOL* rational, [out] VARIANT_BOOL* closed, [out] VARIANT_BOOL* periodic, [out] IMxDrawPoints** controlPoints, [out] IMxDrawResbuf** knots, [out] IMxDrawResbuf** weights, [out] DOUBLE* controlPtTol, [out] DOUBLE* knotTol);例如: C#
MxDrawSpline sp = (MxDrawSpline)axMxDrawX1.GetEntity("spline");
if (sp == null)
return;
Int32 degree = 3;
Boolean rational = false;
Boolean closed = false;
Boolean periodic = false;
MxDrawPoints controlPoints;
MxDrawResbuf knots;
MxDrawResbuf weights;
Double controlPtTol = 0.0001;
Double knotTol = 0.0001;
sp.GetNurbsData(out degree, out rational, out closed, out periodic, out controlPoints,
out knots, out weights, out controlPtTol, out knotTol);
MessageBox.Show(degree.ToString());
MessageBox.Show(controlPoints.Count.ToString());
MessageBox.Show(knots.Count.ToString());
for (Int32 i = 0; i < knots.Count; i++)
{
MessageBox.Show(knots.AtDouble(i).ToString() );
}