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CalculateRotateAngle Method

Summary

Returns the rotate angle of an AnnObject in degrees.

Syntax

C++

public virtual float CalculateRotateAngle()

  
Public Overridable Function CalculateRotateAngle() As Single

public: 
virtual float CalculateRotateAngle();

Return Value

The rotate angle of the AnnObject in degrees.

Remarks

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 (Deprecated).

Example

This example displays the rotate angle of an AnnObject.

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); 
}

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

Requirements

Target Platforms

Reference

AnnObject Class

AnnObject Members

Help Version 19.0.2017.10.27

Leadtools.Annotations Assembly

Introduction

Getting Started

Namespaces

Leadtools.Annotations Namespace

Assemblies