CalculateRotateAngle Method (AnnObject)

C#
Visual Basic
Objective-C
Java
C++

public virtual float CalculateRotateAngle()

'Declaration
 
Public Overridable Function CalculateRotateAngle() As Single

'Usage
 
Dim instance As AnnObject
Dim value As Single
 
value = instance.CalculateRotateAngle()

public:
virtual float CalculateRotateAngle();

Return Value

The rotate angle of the AnnObject in degrees.

The rotate angle returned is formed by the object and the horizontal. A positive value represents a clockwise rotation, and a negative value represents a counter-clockwise rotation. Many objects do not have a rotate angle (i.e. AnnPolylineObject) and will therefore return 0 degrees. For rectangular objects (objects derived from AnnRectangleObject), the angle computed is formed by the top edge of the object and the horizontal. For more information, refer to New Annotation Features of Version 14.5.

This example displays the rotate angle of an AnnObject.

C#
Visual Basic
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Copy Code

Imports Leadtools
Imports Leadtools.Annotations
Imports Leadtools.Codecs
Imports Leadtools.WinForms
Imports Leadtools.Drawing

Public Sub AnnObject_CalculateRotateAngle(ByVal obj As AnnObject)
   Dim angle As Single = obj.CalculateRotateAngle()
   Dim s As String = String.Format("The selected {0} has a rotate angle of {1}", obj.GetType().ToString(), angle)
   MessageBox.Show(s)
End Sub

using Leadtools;
using Leadtools.Annotations;
using Leadtools.Codecs;
using Leadtools.WinForms;
using Leadtools.Drawing;

public void AnnObject_CalculateRotateAngle(AnnObject obj)
{
   float angle = obj.CalculateRotateAngle();
   string s = string.Format("The selected {0} has a rotate angle of {1}", obj.GetType().ToString(), angle);
   MessageBox.Show(s);
}

Target Platforms

Reference

AnnObject Class
AnnObject Members