private void SampleGraphicsControl_Render(object sender, GraphicsControlEventArgs e)
{
GraphicsContext ctx = e.Context;
GraphicsSurface framebuffer = e.Framebuffer;
if (_AnimationBegin == DateTime.MinValue)
{
_AnimationBegin = DateTime.UtcNow;
}
PerspectiveProjectionMatrix matrixProjection = new PerspectiveProjectionMatrix();
Matrix4x4 matrixView;
// Set projection
matrixProjection.SetPerspective(60.0f, (float)ClientSize.Width / (float)ClientSize.Height, 1.0f, 1000.0f);
// Set view
ModelMatrix matrixViewModel = new ModelMatrix();
matrixViewModel.RotateX(_ViewElevation);
matrixViewModel.RotateY(_ViewAzimuth);
matrixViewModel.Translate(0.0f, 0.0f, _ViewDistance);
matrixView = matrixViewModel.GetInverseMatrix();
_NewtonProgram.Bind(ctx);
_NewtonProgram.SetUniform(ctx, "hal_ModelViewProjection", matrixProjection * matrixView);
_NewtonProgram.SetUniform(ctx, "hal_FrameTimeInterval", (float)(DateTime.UtcNow - _AnimationBegin).TotalSeconds);
_NewtonVertexArray.Draw(ctx, _NewtonProgram);
SwapNewtonVertexArrays();
// Issue another rendering
SampleGraphicsControl.Invalidate();
}
private void SampleGraphicsControl_GraphicsContextCreated(object sender, GraphicsControlEventArgs e)
{
GraphicsContext ctx = e.Context;
GraphicsSurface framebuffer = e.Framebuffer;
#if DEBUG
_GeometryClipmapObject = new GeometryClipmapObject(6, 7, _BlockUnit);
#else
_GeometryClipmapObject = new GeometryClipmapObject(9, 11, _BlockUnit);
#endif
string workingDir = Directory.GetCurrentDirectory();
_GeometryClipmapObject.SetTerrainElevationFactory(Path.Combine(workingDir, @"..\..\..\Data\Terrain.vrt"), 45.5, 10.5);
_GeometryClipmapScene = new SceneGraph();
_GeometryClipmapScene.AddChild(new SceneGraphCameraObject());
_GeometryClipmapScene.AddChild(_GeometryClipmapObject);
_GeometryClipmapScene.Create(ctx);
// Set projection
_GeometryClipmapScene.CurrentView.ProjectionMatrix = new PerspectiveProjectionMatrix(
_ViewFov / 16.0f * 9.0f,
(float)ClientSize.Width / (float)ClientSize.Height,
1.0f, _ViewDepth
);;
// Clear color
framebuffer.SetClearColor(new ColorRGBAF(0.0f, 0.0f, 0.0f));
}
public static bool ClipPolyToLine(GraphicsSurface surface, Line ClipLine)
{
bool result = false;
FigPolyline new_fig = new FigPolyline();
if (surface.selected.Count == 0 || surface.selected.Count > 1)
{
return(result); // nothing selected
}
if (surface.selected[0] is FigPolyline)
{
PointF s, p, i;
int j;
FigPolyline inPoly = surface.selected[0] as FigPolyline;
s = inPoly.Points[inPoly.Points.Count - 1];
for (j = 0; j < inPoly.Points.Count; j++)
{
p = inPoly.Points[j];
if (Inside(p, ClipLine)) // {Cases 1 and 4}
{
if (Inside(s, ClipLine))
{
new_fig.Points.Add(p); // {Case 1}
}
else
{
Intersect(s, p, ClipLine, out i);
new_fig.Points.Add(i);
new_fig.Points.Add(p);
}
}
else // {Cases 2 and 3}
{
if (Inside(s, ClipLine)) // {Cases 2}
{
Intersect(s, p, ClipLine, out i);
new_fig.Points.Add(i);
} // {No action for case 3}
}
s = p; // {Advance to next pair of vertices}
}
// replace selected
surface.Drawing.RemoveFigures(surface.selected);
surface.Drawing.AddFigure(new_fig);
// set new selection
surface.selected.Clear();
//surface.AddToSelected(new_fig);
surface.selected.Add(new_fig);
return(result);
}
else
{
return(result);
}
}
/// <summary>
///
/// </summary>
/// <param name="graphicsSurface"></param>
public ViewportState(GraphicsSurface graphicsSurface)
{
if (graphicsSurface == null)
{
throw new ArgumentNullException("graphicsSurface");
}
ViewportSize = new Vertex2f(graphicsSurface.Width, graphicsSurface.Height);
}
public ClientWindow()
{
InitializeComponent();
PanelDocument_Resize(PanelDocument, new EventArgs());
SurfaceObject = new GraphicsSurface(PanelCanvas);
SurfaceObject.Renderer = new DocumentRenderer();
}
private void SampleGraphicsControl_GraphicsContextCreated(object sender, GraphicsControlEventArgs e)
{
GraphicsContext ctx = e.Context;
GraphicsSurface framebuffer = e.Framebuffer;
// Create Newton program
_NewtonProgram = ShadersLibrary.Instance.CreateProgram("Newton");
_NewtonProgram.AddFeedbackVarying("hal_VertexPosition");
_NewtonProgram.AddFeedbackVarying("hal_VertexSpeed");
_NewtonProgram.AddFeedbackVarying("hal_VertexAcceleration");
_NewtonProgram.AddFeedbackVarying("hal_VertexMass");
_NewtonProgram.Create(ctx);
// Initialize first vertex array
NewtonVertex[] newtonArray = new NewtonVertex[VertexCount];
Random random = new Random();
for (int i = 0; i < newtonArray.Length; i++)
{
NewtonVertex newtonVertex = new NewtonVertex();
newtonVertex.Position = new Vertex3f(RandomNormalized(), RandomNormalized(), RandomNormalized());
newtonVertex.Speed = new Vertex3f(RandomNormalized(), RandomNormalized(), RandomNormalized());
newtonVertex.Acceleration = new Vertex3f();
newtonVertex.Mass = RandomNormalized();
newtonArray[i] = newtonVertex;
}
// Create vertex arrays
ArrayBufferObjectBase newtonVertexArrayBuffer1, newtonVertexArrayBuffer2;
_NewtonVertexArray1 = CreateVertexArray(newtonArray, out newtonVertexArrayBuffer1);
_NewtonVertexArray2 = CreateVertexArray(null, out newtonVertexArrayBuffer2);
_NewtonVertexArray1.SetTransformFeedback(CreateFeedbackBuffer(newtonVertexArrayBuffer2));
_NewtonVertexArray2.SetTransformFeedback(CreateFeedbackBuffer(newtonVertexArrayBuffer1));
_NewtonVertexArray1.Create(ctx);
_NewtonVertexArray2.Create(ctx);
// Starts from initialized buffer
_NewtonVertexArray = _NewtonVertexArray1;
// Clear color
framebuffer.SetClearColor(new ColorRGBAF(0.0f, 0.0f, 0.0f));
}
private void SampleGraphicsControl_Render(object sender, GraphicsControlEventArgs e)
{
GraphicsContext ctx = e.Context;
GraphicsSurface framebuffer = e.Framebuffer;
// Update position
KeyTimer_Tick();
// Define view
_GeometryClipmapScene.CurrentView.LocalModel.SetIdentity();
_GeometryClipmapScene.CurrentView.LocalModel.Translate(_ViewPosition);
_GeometryClipmapScene.CurrentView.LocalModel.RotateY(_ViewAzimuth);
_GeometryClipmapScene.CurrentView.LocalModel.RotateX(_ViewElevation);
// Draw geometry clipmap
_GeometryClipmapScene.Draw(ctx);
SampleGraphicsControl.Invalidate();
}
/// <summary>
///
/// </summary>
/// <param name="graphicsSurface"></param>
public ViewportState(GraphicsSurface graphicsSurface)
{
if (graphicsSurface == null)
throw new ArgumentNullException("graphicsSurface");
ViewportSize = new Vertex2f(graphicsSurface.Width, graphicsSurface.Height);
}
/// <summary>
/// Replace the selected lines or polylines with a single polyline.
/// </summary>
/// <param name="surface"></param>
/// <returns></returns>
public static bool MakePath(GraphicsSurface surface)
{
bool result = false;
FigPolyline new_fig = new FigPolyline();
if (surface.selected.Count == 0)
{
return(result); // nothing selected
}
foreach (Figure fig in surface.selected)
{
if (!((fig is Line) || (fig is FigPolyline)))
{
return(false);
}
}
foreach (Figure fig in surface.selected)
{
if (new_fig.Points.Count == 0)
{
if (fig is Line)
{
Line line = fig as Line;
new_fig.Points.Add(new PointF(line.p1.X, line.p1.Y));
new_fig.Points.Add(new PointF(line.p2.X, line.p2.Y));
new_fig.LineProperties = line.LineProperties;
}
else
{
FigPolyline poly = fig as FigPolyline;
foreach (PointF p in poly.Points)
{
new_fig.Points.Add(new PointF(p.X, p.Y));
}
new_fig.LineProperties = poly.LineProperties;
}
}
else
{
// check contiguous
if (fig is Line)
{
Line line = fig as Line;
if (new_fig.Points[new_fig.Points.Count - 1] == line.p1)
{
new_fig.Points.Add(new PointF(line.p2.X, line.p2.Y));
}
else if (new_fig.Points[new_fig.Points.Count - 1] == line.p2)
{
new_fig.Points.Add(new PointF(line.p1.X, line.p1.Y));
}
else if (new_fig.Points[0] == line.p1)
{
new_fig.Points.Insert(0, new PointF(line.p2.X, line.p2.Y));
}
else if (new_fig.Points[0] == line.p2)
{
new_fig.Points.Insert(0, new PointF(line.p1.X, line.p1.Y));
}
else
{
return(false);
}
}
else
{
//polyline
FigPolyline poly = fig as FigPolyline;
if (new_fig.Points[new_fig.Points.Count - 1] == poly.Points[0])
{
AddPoints(ref new_fig.Points, poly.Points, 1);
}
else if (new_fig.Points[new_fig.Points.Count - 1] == poly.Points[poly.Points.Count - 1])
{
AddPointsReverse(ref new_fig.Points, poly.Points, 1);
}
}
}
}
surface.Drawing.RemoveFigures(surface.selected);
surface.Drawing.AddFigure(new_fig);
// set new selection
//surface.ClearSelected();
surface.selected.Clear();
//surface.AddToSelected(new_fig);
surface.selected.Add(new_fig);
return(result);
}
