Zooming in C# using opengl
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Dear All I have a program for line drawing in C# using CSGL(OpenGL), now i want to Zoom in and out that drawing line in openGL from the menu or from the Zoom button kindly any one help me? Regards:(( David
david
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Dear All I have a program for line drawing in C# using CSGL(OpenGL), now i want to Zoom in and out that drawing line in openGL from the menu or from the Zoom button kindly any one help me? Regards:(( David
david
Dear all Regards following is my code for zooming a triangle, but it is not working , i think some problem in GLlookAt(); ----------------CODE---------------------- protected override void OnSizeChanged(EventArgs e) { base.OnSizeChanged(e); System.Drawing.Size s = Size; width = (double)s.Width; height = (double)s.Height; GL.glViewport(0,0,s.Width,s.Height); GL.glMatrixMode(GL.GL_PROJECTION); GL.glLoadIdentity(); GL.gluPerspective(60.0, (float)s.Width / (float)s.Height, 1.0, 50.0); GL.glMatrixMode(GL.GL_MODELVIEW); GL.glLoadIdentity(); } public override void glDraw() { GL.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT); // Clear Screen And Depth Buffer GL.glLoadIdentity(); // Reset The Current Modelview Matrix GL.gluLookAt(0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 1.0, 0.0); GL.glLoadIdentity(); GL.glTranslatef(-1.5f, 0.0f, -6.0f); // Move Left 1.5 Units And Into The Screen 6.0 GL.glBegin(GL.GL_TRIANGLES); // Drawing Using Triangles GL.glVertex3f(0.0f, 1.0f, 0.0f); // Top GL.glVertex3f(-1.0f, -1.0f, 0.0f); // Bottom Left GL.glVertex3f(1.0f, -1.0f, 0.0f); // Bottom Right GL.glEnd(); this.Refresh(); // GL.glFlush(); } ----------------------End---------------------------------------------------- kindly help me while zooming the above triangle. waiting for your help regards david:((
david