打断曲线
[helpstring("method SplitCurves")]
HRESULT SplitCurves([in] IMxDrawResbuf* aryParam, [out] IMxDrawResbuf** aryNewId, [out,retval] VARIANT_BOOL* isOk);|
参数 |
说明 |
|
[in] IMxDrawResbuf* aryParam |
打断位置参数数组,或打断的点数组,是个MxDrawResbuf对象。 |
|
[out] IMxDrawResbuf** aryNewId |
返回打断后生成的新曲线id，是个MxDrawResbuf对象。 |
成功返回TRUE
例如: VB测试代码
Private Sub SplitCurves()
Set mxUtility = New MxDrawXLib.MxDrawUtility
Dim ent As MxDrawXLib.MxDrawEntity
Set ent = mxUtility.GetEntity(getPt, Chr(13) + Chr(10) + "选择打断的曲线")
If (ent Is Nothing) Then
MsgBox "没有选择实体.."
Exit Sub
End If
Dim curve As MxDrawXLib.MxDrawCurve
If TypeOf ent Is MxDrawXLib.MxDrawCurve Then
Set curve = ent
Else
MsgBox "实体类型不对"
Exit Sub
End If
Dim getPt1 As MxDrawXLib.MxDrawPoint
Set getPt1 = mxUtility.GetPoint(, Chr(13) + Chr(10) + "点取打断的位置:")
If (getPt1 Is Nothing) Then
MsgBox "用户取消.."
Exit Sub
End If
Set param = New MxDrawXLib.MxDrawResbuf
param.AddPoint getPt1, -10
Dim rb As MxDrawXLib.MxDrawResbuf
If curve.SplitCurves(param, rb) Then
MsgBox "打断成功"
'把原来的删除掉
curve.Erase
End If
End Sub例如: C#例程
private void DoSplitCurves() { MxDrawUtility mxUtility = new MxDrawUtility(); object getPt; MxDrawEntity ent = mxUtility.GetEntity(out getPt, "选择打断的曲线:"); if (ent == null) return; MxDrawCurve curve; if (ent is MxDrawCurve) { curve = (MxDrawCurve)ent; } else { MessageBox.Show("实体类型不对"); return; } MxDrawPoint getPt1 = (MxDrawPoint)(mxUtility.GetPoint(null, "点取打断位置:")); if (getPt1 == null) { MessageBox.Show("用户取消.."); return; } MxDrawResbuf param = new MxDrawResbuf(); param.AddPoint(getPt1, -10); MxDrawResbuf objId; if (curve.SplitCurves(param,out objId)) { MxDrawResbuf rbId = (MxDrawResbuf)objId; MessageBox.Show("打断成功，生成的曲线个数:" + rbId.Count); // 把以前的删除掉。 ent.Erase(); } else { MessageBox.Show("打断失败"); } }
例如: C#选择曲线，把曲线从中间1/4 到 3/ 4处断开
MxDrawUtility mxUtility = new MxDrawUtility(); object getPt; MxDrawEntity ent = mxUtility.GetEntity(out getPt, "选择打断的曲线:"); if (ent == null) return; MxDrawCurve curve; if (ent is MxDrawCurve) { curve = (MxDrawCurve)ent; } else { MessageBox.Show("实体类型不对"); return; } double dLen = 0.0; curve.GetDistAtParam(curve.GetEndParam(),out dLen); object pt1; if (!curve.GetPointAtDist(dLen / 4.0, out pt1)) return; object pt2; if (!curve.GetPointAtDist(dLen * 3.0 / 4.0, out pt2)) return; MxDrawPoint breakPt1 = (MxDrawPoint)pt1; MxDrawPoint breakPt2 = (MxDrawPoint)pt2; if (breakPt1 == null || breakPt2 == null) return; MxDrawResbuf param = new MxDrawResbuf(); param.AddPoint(breakPt1, -10); param.AddPoint(breakPt2, -10); MxDrawResbuf objIds; if (curve.SplitCurves(param, out objIds)) { MxDrawResbuf rbId = (MxDrawResbuf)objIds; if(rbId.Count == 3) { axMxDrawX1.Erase(rbId.AtLong(1)); } // 把以前的删除掉。 ent.Erase(); }