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www.mxdraw.com
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IMxDrawSpline::GetFitData 方法
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www.mxdraw.com
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返回样条线的拟合数据
[helpstring("method GetFitData")]
HRESULT GetFitData([out] IMxDrawPoints** pPoints, [out] LONG* degree, [out] DOUBLE* fitTolerance, [out] VARIANT_BOOL* tangentsExist, [out] IMxDrawVector3d** startTangent, [out] IMxDrawVector3d** endTangent);|
参数 |
说明 |
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[out] IMxDrawPoints** pPoints |
返回样条线拟合点数组 |
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[out] LONG* degree |
暂没有使用 |
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[out] DOUBLE* fitTolerance |
暂没有使用 |
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[out] VARIANT_BOOL* tangentsExist |
暂没有使用 |
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[out] IMxDrawVector3d** startTangent |
样条线开始位置处的切线向量 |
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[out] IMxDrawVector3d** endTangent |
样条线结束位置处的切线向量 |
例如: C#
MxDrawEntity ent = (MxDrawEntity)axMxDrawX1.GetEntity("选择样条线");
if (ent == null)
return;
if (ent is MxDrawSpline)
{
MxDrawSpline spl = (MxDrawSpline)ent;
MxDrawPoints fitPoints;
int dgree = 3;
double fitTol = 0.0001;
bool tangentsExit = false;
MxDrawVector3d sT, eT;
spl.GetFitData(out fitPoints, out dgree, out fitTol, out tangentsExit, out sT, out eT);
for (int i = 0; i < fitPoints.Count; i++)
{
MxDrawPoint pt = fitPoints.Item(i);
MessageBox.Show(pt.x.ToString() + "," + pt.y.ToString());
}
}