shapestransform.cs

来自「用C#實現能產生PDF格式文件的源碼」· CS 代码 · 共 55 行

using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using PdfSharp.Drawing;

namespace XDrawing.TestLab.Tester
{
  public class ShapesTransform : TesterBase
  {
    /// <summary>
    /// Demonstrates the use of XGraphics.Transform.
    /// </summary>
    public override void RenderPage(XGraphics gfx)
    {
      //gfx.Clear(this.properties.General.BackColor.Color);
      base.RenderPage(gfx);

      gfx.DrawLine(XPens.MediumSlateBlue, 0, 0, 150, 200);
      gfx.DrawPolygon(properties.Pen1.Pen, GetPentagram(75, new PointF(150, 200)));

      Matrix matrix = new Matrix();
      //matrix.Scale(2f, 1.5f);
      //matrix.Translate(-200, -400);
      //matrix.Rotate(45);
      //matrix.Translate(200, 400);
      //gfx.Transform = matrix;
      //gfx.TranslateTransform(50, 30);

#if true
      gfx.TranslateTransform(30, 40, XMatrixOrder.Prepend);
      gfx.ScaleTransform(2.0f, 2.0f, XMatrixOrder.Prepend);
      gfx.RotateTransform(15, XMatrixOrder.Prepend);
#else
      gfx.TranslateTransform(30, 40, XMatrixOrder.Append);
      gfx.ScaleTransform(2.0f, 2.0f, XMatrixOrder.Append);
      gfx.RotateTransform(15, XMatrixOrder.Append);
#endif
      bool id = matrix.IsIdentity;
      matrix.Scale(2.0f, 2.0f, MatrixOrder.Prepend);
      //matrix.Translate(30, -50);
      matrix.Rotate(15, MatrixOrder.Prepend);
      Matrix mtx = gfx.Transform.ToMatrix();
      //gfx.Transform = matrix;

      gfx.DrawLine(XPens.MediumSlateBlue, 0, 0, 150, 200);
      gfx.DrawPolygon(properties.Pen2.Pen, GetPentagram(75, new PointF(150, 200)));
    }

    public override string Description
    {
      get {return "Transform";}
    }
  }
}