Constraints that can be applied to the sketch tool.
| Constant | Value | Description |
|---|---|---|
| esriConstraintNone | 0 | No constraint. |
| esriConstraintAngle | 1 | Angle. |
| esriConstraintDistance | 2 | Distance. |
Product Availability
Remarks
Use the esriSketchConstraint enumeration along with additional properties on the ISketchTool interface to control how constraints are applied to the Sketch Tool. For example, to apply an angle constraint to the Sketch Tool, first set ISketchTool::Constraint to esriConstraintAngle and then set an angle value (measured in radians) in the ISketchTool::AngleConstraint property.
This sample shows how to set the
distance constraint on the sketch tool. This code was applied to a
custom sketch tool, which declared the editor variable as a field
class and set the value of m_editor before this code is called. The
IApplication was also set as a field class and set to hook in the
ICommand::OnCreate procedure.
private void SetDistanceConstraint()
{
ISketchTool sketchTool;
double dist;
IMxApplication mxApp;
mxApp = app as IMxApplication;
m_editor =
mxApp.FindExtension("esriEditor.Editor")
sketchTool = app.CurrentTool.Command
as ISketchTool;
INumberDialog distDialog = new
NumberDialogClass();
if (distDialog.DoModal("Distance",
0, 2, m_editor.Display.hWnd))
{
dist =
distDialog.Value;
sketchTool.DistanceConstraint = dist;
sketchTool.Constraint =
esriSketchConstraint.esriConstraintDistance;
}
}
This sample sets the Distance constraint on a sketch tool that is implemented using BaseTool, the IApplication that is defined as app as a module variable was assigned the value of hook in the OnCreate method.
Private Sub
SetDistanceConstraint()
Dim editor as IEditor
Dim sketchTool As ISketchTool
Dim dist As Double
Dim responce As String
Dim mxDocApp As IMxApplication
mxDocApp = app
editor =
mxDocApp.FindExtension("esriEditor.Editor")
sketchTool = app.CurrentTool.Command
responce = InputBox("Enter the constraint
distance", "Distance", 0)
dist = Double.Parse(responce)
sketchTool.AngleConstraint = dist
sketchTool.Constraint =
esriSketchConstraint.esriConstraintDistance
End Sub