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This document is archived and information here might be outdated. Recommended version. |
IPoint.ConstrainDistance Method (ArcObjects .NET 10.8 SDK)
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This document is archived and information here might be outdated. Recommended version. |
Projects this point to the perimeter of the circle defined by radius and anchor.
[Visual Basic .NET] Public Sub ConstrainDistance ( _ ByVal constraintRadius As Double, _ ByVal anchor As IPoint _ )
[C#] public void ConstrainDistance ( double constraintRadius, IPoint anchor );
[C++]
HRESULT ConstrainDistance(
double constraintRadius,
IPoint* anchor
);
[C++] Parameters constraintRadius
constraintRadius is a parameter of type double anchor
anchor is a parameter of type IPoint*
Sets the base Point to a location a specified distance from the input anchor Point along the line between the two points. ConstrainDistance is used by the editor to fix the distance between an anchor point and an input Point. Thus, the input to be created must lie on the circumference defined by the anchor point and the fixed distance radius with the angle determined by the user.
ConstrainDistance
private void ConstrainDistance()
{
IPoint point = new PointClass();
point.PutCoords(0, 0);
IPoint newPoint = new PointClass();
newPoint.PutCoords(2,2);
newPoint.ConstrainDistance(Math.PI, point);
System.Windows.Forms.MessageBox.Show(newPoint.X + ", " + newPoint.Y);
}
Public Sub ConstrainDistanceTest()
Dim pPoint As ESRI.ArcGIS.Geometry.IPoint
Dim pNPoint As ESRI.ArcGIS.Geometry.IPoint
Dim dRadius As Double
pPoint = New ESRI.ArcGIS.Geometry.Point
pPoint.PutCoords(0, 0)
pNPoint = New ESRI.ArcGIS.Geometry.Point
pNPoint.PutCoords(2, 2)
dRadius = 1.4142135623731
pNPoint.ConstrainDistance(dRadius, pPoint)
MsgBox("Radius = " & dRadius & " x,y = " & pNPoint.X & "," & pNPoint.Y)
End Sub