/// <summary>
/// Handles the OpenGLDraw event of the openGLControl control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="RenderEventArgs"/> instance containing the event data.</param>
public void openGLControl_OpenGLDraw(object sender, RenderEventArgs e)
{
// Get the OpenGL object.
gl = openGLControl.OpenGL;
// Clear the color and depth buffer.
gl.Clear(OpenGL.GL_COLOR_BUFFER_BIT | OpenGL.GL_DEPTH_BUFFER_BIT);
// Load the identity matrix.
gl.LoadIdentity();
// Rotate around the Y axis.
//gl.Rotate(rotation, 0.0f, 1.0f, 0.0f);
cord = ComInput.Coordinates.Instance;
this.ModelRotater(gl);
gl.Enable(OpenGL.GL_BLEND);
gl.BlendFunc(OpenGL.GL_SRC_ALPHA, OpenGL.GL_ONE_MINUS_SRC_ALPHA);
// Draw a coloured parallelepiped.
gl.Begin(OpenGL.GL_QUADS);
gl.Color(0.0f, 1.0f, 0.0f);
gl.Vertex(-2.0f, -0.25f, -1.0f);
gl.Color(0.0f, 1.0f, 0.0f);
gl.Vertex(2.0f, -0.25f, -1.0f);
gl.Color(0.0f, 1.0f, 0.0f);
gl.Vertex(2.0f, 0.25f, -1.0f);
gl.Color(0.0f, 1.0f, 0.0f);
gl.Vertex(-2.0f, 0.25f, -1.0f);
//-------------------------------------
gl.Color(1.0f, 0.0f, 0.0f);
gl.Vertex(-2.0f, -0.25f, -1.0f);
gl.Color(1.0f, 0.0f, 0.0f);
gl.Vertex(-2.0f, -0.25f, 1.0f);
gl.Color(1.0f, 0.0f, 0.0f);
gl.Vertex(-2.0f, 0.25f, 1.0f);
gl.Color(1.0f, 0.0f, 0.0f);
gl.Vertex(-2.0f, 0.25f, -1.0f);
//-------------------------------------
gl.Color(0.0f, 1.0f, 0.0f);
gl.Vertex(-2.0f, -0.25f, 1.0f);
gl.Color(0.0f, 1.0f, 0.0f);
gl.Vertex(2.0f, -0.25f, 1.0f);
gl.Color(0.0f, 1.0f, 0.0f);
gl.Vertex(2.0f, 0.25f, 1.0f);
gl.Color(0.0f, 1.0f, 0.0f);
gl.Vertex(-2.0f, 0.25f, 1.0f);
//-------------------------------------
gl.Color(1.0f, 0.0f, 0.0f);
gl.Vertex(2.0f, -0.25f, 1.0f);
gl.Color(1.0f, 0.0f, 0.0f);
gl.Vertex(2.0f, -0.25f, -1.0f);
gl.Color(1.0f, 0.0f, 0.0f);
gl.Vertex(2.0f, 0.25f, -1.0f);
gl.Color(1.0f, 0.0f, 0.0f);
gl.Vertex(2.0f, 0.25f, 1.0f);
//-------------------------------------
gl.Color(0.0f, 1.0f, 1.0f);
gl.Vertex(-2.0f, 0.25f, -1.0f);
gl.Color(0.0f, 1.0f, 1.0f);
gl.Vertex(2.0f, 0.25f, -1.0f);
gl.Color(0.0f, 1.0f, 1.0f);
gl.Vertex(2.0f, 0.25f, 1.0f);
gl.Color(0.0f, 1.0f, 1.0f);
gl.Vertex(-2.0f, 0.25f, 1.0f);
//--------------------------------------
gl.Color(0.0f, 0.0f, 1.0f);
gl.Vertex(-2.0f, -0.25f, -1.0f);
gl.Color(0.0f, 0.0f, 1.0f);
gl.Vertex(2.0f, -0.25f, -1.0f);
gl.Color(0.0f, 0.0f, 1.0f);
gl.Vertex(2.0f, -0.25f, 1.0f);
gl.Color(0.0f, 0.0f, 1.0f);
gl.Vertex(-2.0f, -0.25f, 1.0f);
gl.End();
//-------------------Angle indicator prototype is here----------------------------------------------
gl.LoadIdentity();
gl.Rotate(cord.getX(), 1.0f, 0.0f, 0.0f);
gl.Begin(OpenGL.GL_TRIANGLES);
gl.Vertex(0.0f, 2.75f, 0.0f);
gl.Vertex(0.25f, 3.25f, 0.0f);
gl.Vertex(-0.25f, 3.25f, 0.0f);
gl.End();
gl.LoadIdentity();
gl.Rotate(cord.getZ(), 0.0f, 1.0f, 0.0f);
gl.Begin(OpenGL.GL_TRIANGLES);
gl.Vertex(0.0f, 0.0f, 2.75f);
gl.Vertex(0.0f, 0.25f, 3.25f);
gl.Vertex(0.0f, -0.25f, 3.25f);
gl.End();
gl.LoadIdentity();
gl.Rotate(cord.getY(), 0.0f, 0.0f, 1.0f);
gl.Begin(OpenGL.GL_TRIANGLES);
gl.Vertex(2.75f, 0.0f, 0.0f);
gl.Vertex(3.25f, 0.0f, 0.25f);
gl.Vertex(3.25f, 0.0f, -0.25f);
gl.End();
//------------------Circles of planes is here-----------------------------------------------
gl.LoadIdentity();
gl.Begin(OpenGL.GL_LINE_LOOP);
for(int i = 0; i < 200; i++)
{
float theta = 2.0f * 3.1415926f * (float)i / 200f;//get the current angle
float x = 3f * (float)System.Math.Cos(theta);//calculate the x component
float y = 3f * (float)System.Math.Sin(theta);//calculate the y component
gl.Color(0.0f, 1.0f, 0.0f);
gl.Vertex(0f, y + 0.0f, x + 0.0f);//output vertex
}
gl.End();
gl.Begin(OpenGL.GL_LINE_LOOP);
for (int i = 0; i < 200; i++)
{
float theta = 2.0f * 3.1415926f * (float)i / 200f;//get the current angle
float x = 3f * (float)System.Math.Cos(theta);//calculate the x component
float y = 3f * (float)System.Math.Sin(theta);//calculate the y component
gl.Vertex(x + 0.0f, 0.0f, y + 0.0f);//output vertex
}
gl.End();
gl.Begin(OpenGL.GL_LINE_LOOP);
for (int i = 0; i < 200; i++)
{
float theta = 2.0f * 3.1415926f * (float)i / 200f;//get the current angle
float x = 3f * (float)System.Math.Cos(theta);//calculate the x component
float y = 3f * (float)System.Math.Sin(theta);//calculate the y component
gl.Vertex(x + 0.0f, y + 0.0f, 0.0f);//output vertex
}
gl.End();
/* //--------------Coordinate axis's is here--------------------------------------------
gl.LoadIdentity();
gl.Begin(OpenGL.GL_LINE_STRIP);
gl.Color(1.0f, 1.0f, 1.0f);
gl.Vertex(-4.0f, 0.5f, 1.5f);
gl.Vertex(2.5f, 0.5f, 1.5f);
gl.Vertex(2.5f, 0.5f, -4.5f);
gl.Vertex(2.5f, 0.5f, 1.5f);
gl.Vertex(2.5f, 4.0f, 1.5f);
gl.End();
*/ //------------Shpere is here-----------------------------
gl.LoadIdentity();
gl.Color(0.85f, 0.85f, 0.85f, 0.5f);
gl.Begin(OpenGL.GL_QUADS);
for (int i = 0; i < 1; i++)
{
this.draw_sphere(gl, 3);
}
gl.End();
//---------------3D Text prototype is here-------------------
gl.LoadIdentity();
gl.Translate(0.0f, 3.5f, -3.0f);
gl.Color(0.0f, 1.0f, 0.65f);
gl.Rotate(270.0f, 0.0f, 1.0f, 0.0f);
gl.DrawText3D("a", 0.2f,
1.0f, 0.1f, "osX: 0");
// Nudge the rotation.
rotation += 2.0f;
}
public static void MyGrid(SharpGL.OpenGL gl, int iLo, int iHi, int jLo, int jHi)
{
const String ColumnAnnotationFont = "Times New Roman";
const int Ilo = 0;
const int Ihi = 10;
const int Jlo = 0;
const int Jhi = 10;
gl.PushAttrib(SharpGL.OpenGL.GL_CURRENT_BIT | SharpGL.OpenGL.GL_ENABLE_BIT | SharpGL.OpenGL.GL_LINE_BIT);
gl.Disable(SharpGL.OpenGL.GL_LIGHTING);
gl.Disable(SharpGL.OpenGL.GL_TEXTURE_2D);
gl.LineWidth(1.0f);
// Draw the grid lines.
gl.Begin(SharpGL.OpenGL.GL_LINES);
for (int i = iLo; i <= iHi; i++)
{
float fcol = ((i % 10) == 0) ? 0.3f : 0.15f;
gl.Color(fcol, fcol, fcol);
gl.Vertex(i, jLo, 0);
gl.Vertex(i, jHi, 0);
}
for (int j = jLo; j <= jHi; j++)
{
float fcol = ((j % 10) == 0) ? 0.3f : 0.15f;
gl.Vertex(iLo, j, 0);
gl.Vertex(iHi, j, 0);
}
gl.End( );
// Draw Spreadsheet boarders
for (int i = iLo; i < iHi; i++)
{
gl.PushMatrix( );
gl.Translate(i + 0.25, jLo - 0.5, 0);
gl.Scale(0.5d, 0.5d, 0.5d);
String Annotation = String.Format("{0,2} ", i);
gl.DrawText3D(ColumnAnnotationFont, 8.0f, 0.0f, 0.1f, Annotation);
gl.PopMatrix( );
}
for (int i = iLo; i < iHi; i++)
{
gl.PushMatrix( );
gl.Translate(i + .25, jHi + 0.5, 0);
gl.Scale(0.5d, 0.5d, 0.5d);
String Annotation = String.Format("{0,2} ", i);
gl.DrawText3D(ColumnAnnotationFont, 8.0f, 0.0f, 0.1f, Annotation);
gl.PopMatrix( );
}
for (int j = jLo; j < jHi; j++)
{
gl.PushMatrix( );
gl.Translate(iLo - 0.5, j + 0.25, 0);
gl.Scale(0.5d, 0.5d, 0.5d);
String Annotation = String.Format("{0,2} ", j + 1);
gl.DrawText3D(ColumnAnnotationFont, 8.0f, 0.0f, 0.1f, Annotation);
gl.PopMatrix( );
}
for (int j = jLo; j < jHi; j++)
{
gl.PushMatrix( );
gl.Translate(iHi + 0.5, j + 0.25, 0);
gl.Scale(0.5d, 0.5d, 0.5d);
String Annotation = String.Format("{0,2} ", j + 1);
gl.DrawText3D(ColumnAnnotationFont, 8.0f, 0.0f, 0.1f, Annotation);
gl.PopMatrix( );
}
gl.LineWidth(2);
gl.Color(.5, .2, .1);
gl.Begin(SharpGL.OpenGL.GL_LINE_LOOP);
gl.Vertex(Jlo, Ilo);
gl.Vertex(Jlo, Ihi + 1);
gl.Vertex(Jhi + 1, Ihi + 1);
gl.Vertex(Jhi + 1, Ilo);
gl.End( );
gl.PopAttrib( );
}
public static void MyGlobalAxis(SharpGL.OpenGL gl, int AxesLength = 20, int LineWidth = 2, int Pointsize = 3, Boolean DoMinusTicks = true,
Boolean TagOrigin = true, Boolean DoXYZAnnotation = true, Boolean DoMinusXYZAnnotation = true, Boolean DoUnitTicks = true,
Boolean DoAnnotateZTicks = true, Boolean DoAnnotateYTicks = true, Boolean DoAnnotateXTicks = true, Boolean DoPlusTicks = true, float tick_annotation_scale = 0.4f,
Boolean Draw_Minus_Z_Axis_Leg = true, Boolean Draw_Minus_Y_Axis_Leg = true, Boolean Draw_Minus_X_Axis_Leg = true)
{
gl.PushMatrix( );
gl.PushAttrib(SharpGL.OpenGL.GL_CURRENT_BIT | SharpGL.OpenGL.GL_ENABLE_BIT | SharpGL.OpenGL.GL_LINE_BIT | SharpGL.OpenGL.GL_DEPTH_BUFFER_BIT);
gl.Disable(SharpGL.OpenGL.GL_LIGHTING);
gl.Disable(SharpGL.OpenGL.GL_TEXTURE_2D);
gl.DepthFunc(SharpGL.OpenGL.GL_ALWAYS);
gl.LineWidth(LineWidth);
// Draw the axis and annotate the ends.
if (TagOrigin)
{
gl.Color(White);
gl.PointSize(Pointsize);
gl.Vertex(Origin);
gl.PushMatrix( );
gl.DrawText3D(AxisLabelFont, 10.0f, 0.0f, 0.2f, "0");
gl.PopMatrix( );
}
gl.Color(Red);
gl.Begin(SharpGL.OpenGL.GL_LINES);
gl.Vertex(Origin);
gl.Vertex(AxesLength, 0, 0);
gl.End( );
if (Draw_Minus_X_Axis_Leg)
{
gl.Color(Red);
gl.Begin(SharpGL.OpenGL.GL_LINES);
gl.Vertex(Origin);
gl.Vertex(-AxesLength, 0, 0);
gl.End( );
}
if (DoXYZAnnotation)
{
gl.PushMatrix( );
gl.Translate(AxesLength, 0, 0);
gl.DrawText3D(AxisLabelFont, 10.0f, 0.0f, 0.2f, "+X");
gl.PopMatrix( );
}
if (DoMinusXYZAnnotation)
{
gl.PushMatrix( );
gl.Translate(-AxesLength, 0, 0);
gl.DrawText3D(AxisLabelFont, 10.0f, 0.0f, 0.2f, "-X");
gl.PopMatrix( );
}
gl.Color(Green);
gl.Begin(SharpGL.OpenGL.GL_LINES);
gl.Vertex(Origin);
gl.Vertex(0, AxesLength, 0);
gl.End( );
if (Draw_Minus_Y_Axis_Leg)
{
gl.Color(Green);
gl.Begin(SharpGL.OpenGL.GL_LINES);
gl.Vertex(Origin);
gl.Vertex(0, -AxesLength, 0);
gl.End( );
}
if (DoXYZAnnotation)
{
gl.PushMatrix( );
gl.Translate(0, AxesLength, 0);
gl.DrawText3D(AxisLabelFont, 10.0f, 0.0f, 0.1f, "+Y");
gl.PopMatrix( );
}
if (DoMinusXYZAnnotation)
{
gl.PushMatrix( );
gl.Translate(0, -AxesLength, 0);
gl.DrawText3D(AxisLabelFont, 10.0f, 0.0f, 0.1f, "-Y");
gl.PopMatrix( );
}
if (true)
{
gl.Color(Blue);
gl.Begin(SharpGL.OpenGL.GL_LINES);
gl.Vertex(Origin);
gl.Vertex(0, 0, AxesLength);
gl.End( );
}
if (Draw_Minus_Z_Axis_Leg)
{
gl.Color(Blue);
gl.Begin(SharpGL.OpenGL.GL_LINES);
gl.Vertex(Origin);
gl.Vertex(0, 0, -AxesLength);
gl.End( );
}
if (DoXYZAnnotation)
{
gl.PushMatrix( );
gl.Translate(0, 0, AxesLength);
gl.DrawText3D(AxisLabelFont, 10.0f, 0.0f, 0.05f, "+Z");
gl.PopMatrix( );
}
if (DoMinusXYZAnnotation && Draw_Minus_Z_Axis_Leg)
{
gl.PushMatrix( );
gl.Translate(0, 0, -AxesLength);
gl.DrawText3D(AxisLabelFont, 10.0f, 0.0f, 0.05f, "-Z");
gl.PopMatrix( );
}
if (DoUnitTicks)
{
gl.PointSize(Pointsize);
gl.Color(White);
for (int i = 0; i < AxesLength; i++)
{
if (DoPlusTicks)
{
gl.Begin(SharpGL.Enumerations.BeginMode.Points);
gl.Vertex(i, 0, 0);
gl.Vertex(0, i, 0);
gl.Vertex(0, 0, i);
gl.End( );
}
if (DoMinusTicks)
{
gl.Begin(SharpGL.Enumerations.BeginMode.Points);
gl.Vertex(-i, 0, 0);
gl.Vertex(0, -i, 0);
if (Draw_Minus_Z_Axis_Leg)
{
gl.Vertex(0, 0, -i);
}
gl.End( );
}
if (DoAnnotateZTicks)
{
gl.PushMatrix( );
gl.Translate(0, 0, i);
gl.Scale(tick_annotation_scale, tick_annotation_scale, tick_annotation_scale);
gl.DrawText3D(faceName: AxisLabelFont, fontSize: .1f, deviation: 0.0f, extrusion: 0.05f, text: i.ToString( ));
gl.PopMatrix( );
}
if (DoMinusTicks && Draw_Minus_Z_Axis_Leg)
{
gl.PushMatrix( );
gl.Translate(0, 0, -i);
gl.Scale(tick_annotation_scale, tick_annotation_scale, tick_annotation_scale);
gl.DrawText3D(faceName: AxisLabelFont, fontSize: .1f, deviation: 0.0f, extrusion: 0.05f, text: (-i).ToString( ));
gl.PopMatrix( );
}
if (DoAnnotateYTicks)
{
gl.PushMatrix( );
gl.Translate(0, i, 0);
gl.Scale(tick_annotation_scale, tick_annotation_scale, tick_annotation_scale);
gl.DrawText3D(faceName: AxisLabelFont, fontSize: .1f, deviation: 0.0f, extrusion: 0.05f, text: i.ToString( ));
gl.PopMatrix( );
}
if (DoMinusTicks)
{
gl.PushMatrix( );
gl.Translate(0, -i, 0);
gl.Scale(tick_annotation_scale, tick_annotation_scale, tick_annotation_scale);
gl.DrawText3D(faceName: AxisLabelFont, fontSize: .1f, deviation: 0.0f, extrusion: 0.05f, text: (-i).ToString( ));
gl.PopMatrix( );
}
if (DoAnnotateXTicks)
{
gl.PushMatrix( );
gl.Translate(i, 0, 0);
gl.Scale(tick_annotation_scale, tick_annotation_scale, tick_annotation_scale);
gl.DrawText3D(faceName: AxisLabelFont, fontSize: .1f, deviation: 0.0f, extrusion: 0.05f, text: i.ToString( ));
gl.PopMatrix( );
}
if (DoMinusTicks)
{
gl.PushMatrix( );
gl.Translate(-i, 0, 0);
gl.Scale(tick_annotation_scale, tick_annotation_scale, tick_annotation_scale);
gl.DrawText3D(faceName: AxisLabelFont, fontSize: .1f, deviation: 0.0f, extrusion: 0.05f, text: (-i).ToString( ));
gl.PopMatrix( );
}
}
}
// Restore attributes.
gl.PopAttrib( );
gl.PopMatrix( );
}
