XTransform Rotate Function. Rotate about a locked anchor point (angle in degrees). ABCpdf .NET PDF Library.

Rotate about a locked anchor point (angle in degrees).

[C#]
void Rotate(double angle, double anchorX, double anchorY)

[Visual Basic]
Sub Rotate(angle As Double, anchorX As Double, anchorY As Double)


This method rotates the world space about a locked anchor point. The angle is specified in degrees anti-clockwise.

Here we add a number of chunks of text rotated at different angles about the middle of the document.

[C#]
Doc theDoc = new Doc();
theDoc.FontSize = 48;
theDoc.TextStyle.Indent = 48;
for (int i = 1; i <= 8; i++) {
  int theAngle = i * 45;
  theDoc.Pos.String = "302 396";
  theDoc.Transform.Reset();
  theDoc.Transform.Rotate(theAngle, 302, 396);
  theDoc.AddText("Rotated " + theAngle.ToString());
}
theDoc.Save(Server.MapPath("transformrotate.pdf"));
theDoc.Clear();

[Visual Basic]
Dim theDoc As Doc = New Doc()
theDoc.FontSize = 48
theDoc.TextStyle.Indent = 48
For i As Integer = 1 To 8
  Dim theAngle As Integer = i * 45
  theDoc.Pos.String = "302 396"
  theDoc.Transform.Reset()
  theDoc.Transform.Rotate(theAngle, 302, 396)
  theDoc.AddText("Rotated " + theAngle.ToString())
Next
theDoc.Save(Server.MapPath("transformrotate.pdf"))
theDoc.Clear()



transformrotate.pdf