public override Figure GetScene(Figure Foreground, Camera Camera, View View)
{
double zoom = Camera.Zoom;
double wash = Math.Min(1.0, Math.Max(0.0, (zoom + 2.0) / 10.0));
Color topcol = Color.Mix(Color.RGB(0.3, 0.6, 0.7), Color.RGB(0.3, 0.5, 0.8), wash);
Color botcol = Color.Mix(Color.RGB(0.1, 0.4, 0.6), Color.RGB(0.1, 0.3, 0.7), wash);
Figure fig = MeshFigure.CreateQuad(
new MeshVertex(View.TopLeft, topcol),
new MeshVertex(View.TopRight, topcol),
new MeshVertex(View.BottomLeft, botcol),
new MeshVertex(View.BottomRight, botcol));
foreach (Layer l in this._Layers)
{
double pg = (zoom - l.MinZoom) / (l.MaxZoom - l.MinZoom);
if (pg > 0.0 && pg < 1.0)
{
double op = pg * (1.0 - pg) * 4.0;
fig += new ModulatedFigure(Color.RGBA(1.0, 1.0, 1.0, op), l.Figure);
}
}
fig += Foreground;
return fig;
}
public ShapeFigure(Shape Shape, Figure Source)
{
this.Shape = Shape;
this.Source = Source;
}
/// <summary> /// Gets the final scene to display when given the foreground scene, camera parameters and the view. /// </summary> public abstract Figure GetScene(Figure Foreground, Camera Camera, View View);
public PersistenceHintFigure(int NumberRenders, Figure Source)
: base(Source)
{
this.NumberRenders = NumberRenders;
}
public HintFigure(Figure Source)
{
this.Source = Source;
}
public CacheHintFigure(string Name, Figure Source)
: base(Source)
{
this.Name = Name;
}
public ProjectedFigure(View Projection, Figure Source)
{
this.Source = Source;
this.Projection = Projection;
}
/// <summary>
/// Sets up the view on the current graphics context and renders a figure.
/// </summary>
public void Render(View View, int Width, int Height, bool InvertY, Figure Figure)
{
GL.Viewport(0, 0, Width, Height);
View iview = View.Inverse;
GL.MatrixMode(MatrixMode.Projection);
UpdateProjection(InvertY, iview);
GL.CullFace(InvertY ? CullFaceMode.Front : CullFaceMode.Back);
this.GetProcedure(Figure, new Environment
{
}).Execute(new Context
{
InvertY = InvertY,
InverseView = iview,
Resolution = Width / View.Area * Height,
Renderer = this,
Modulation = Color.White
});
}
/// <summary>
/// Creates a rotated form of a figure.
/// </summary>
public static RotatedFigure Rotate(Figure Figure, double Angle)
{
if (Figure == null)
return null;
return new RotatedFigure(Angle, Figure);
}
/// <summary>
/// Creates a projected form of a figure.
/// </summary>
public static ProjectedFigure Project(Figure Figure, View Projection)
{
if (Figure == null)
return null;
return new ProjectedFigure(Projection, Figure);
}
/// <summary>
/// Creates a modulated form of a figure.
/// </summary>
public static ModulatedFigure Modulate(Figure Figure, Color Modulation)
{
if (Figure == null)
return null;
return new ModulatedFigure(Modulation, Figure);
}
public TranslatedFigure(Point Offset, Figure Source)
{
this.Source = Source;
this.Offset = Offset;
}
public SuperimposedFigure(Figure Under, Figure Over)
{
this.Under = Under;
this.Over = Over;
}
public ScaledFigure(double Factor, Figure Source)
{
this.Factor = Factor;
this.Source = Source;
}
public RotatedFigure(double Angle, Figure Source)
{
this.Angle = Angle;
this.Source = Source;
}
/// <summary>
/// Gets a procedure that renders the given figure with the given color modulation.
/// </summary>
public Procedure GetProcedure(Figure Figure, Environment Environment)
{
// See if there is a stored procedure for it
Procedure res;
if(this._Procedures.TryGetValue(Figure, out res))
{
return res;
}
// Hint figure
HintFigure hint = Figure as HintFigure;
if (hint != null)
{
CacheHintFigure cachehint = hint as CacheHintFigure;
if (cachehint != null)
{
IRenderCache cache = this._Cache;
Disposable<InStream> cacheread = cache.Read(cachehint.Name);
if (!cacheread.IsNull)
{
Environment.CacheRead = cacheread;
Procedure result = this.GetProcedure(hint.Source, Environment);
Environment.CacheRead = null;
cacheread.Dispose();
return result;
}
Disposable<OutStream> cachewrite = cache.Update(cachehint.Name);
if (!cachewrite.IsNull)
{
Environment.CacheWrite = cachewrite;
Procedure result = this.GetProcedure(hint.Source, Environment);
Environment.CacheWrite = null;
cachewrite.Dispose();
return result;
}
}
return this.GetProcedure(hint.Source, Environment);
}
// Translated figure
TranslatedFigure translated = Figure as TranslatedFigure;
if (translated != null)
{
return new ProjectionProcedure(View.Translation(translated.Offset), this.GetProcedure(translated.Source, Environment));
}
// Scaled figure
ScaledFigure scaled = Figure as ScaledFigure;
if (scaled != null)
{
return new ProjectionProcedure(View.Scale(scaled.Factor), this.GetProcedure(scaled.Source, Environment));
}
// Rotated figure
RotatedFigure rotated = Figure as RotatedFigure;
if (rotated != null)
{
return new ProjectionProcedure(View.Rotation(rotated.Angle), this.GetProcedure(rotated.Source, Environment));
}
// Projected figure
ProjectedFigure projected = Figure as ProjectedFigure;
if (projected != null)
{
return new ProjectionProcedure(projected.Projection, this.GetProcedure(projected.Source, Environment));
}
// Modulated figure
ModulatedFigure modulated = Figure as ModulatedFigure;
if (modulated != null)
{
return new ModulateProcedure(modulated.Modulation, this.GetProcedure(modulated.Source, Environment));
}
// Superimposed figure
SuperimposedFigure superimposed = Figure as SuperimposedFigure;
if (superimposed != null)
{
return this.GetProcedure(superimposed.Under, Environment) + this.GetProcedure(superimposed.Over, Environment);
}
// Compound figure
CompoundFigure compound = Figure as CompoundFigure;
if (compound != null)
{
Procedure[] components = new Procedure[compound.Components.Count()];
int i = 0;
foreach (Figure component in compound.Components)
{
components[i++] = this.GetProcedure(component, Environment);
}
return new CompoundProcedure(components);
}
// Shape figure
ShapeFigure shape = Figure as ShapeFigure;
if (shape != null)
{
return this.GetShapeProcedure(shape.Shape, shape.Source, Environment);
}
// Mesh figure
MeshFigure mesh = Figure as MeshFigure;
if (mesh != null)
{
return
BindTextureProcedure.Null +
SetColorProcedure.White +
new RenderGeometryProcedure(BeginMode.Triangles, new MeshGeometry(mesh));
}
// System font glyph
SystemFontGlyph sfg = Figure as SystemFontGlyph;
if (sfg != null)
{
SystemFont font = sfg.Font;
BitmapTypeface typeface = font.Typeface as BitmapTypeface;
if (typeface != null)
{
Texture tex;
Rectangle src;
Rectangle dst;
typeface.GetGlyph(sfg.Character).GetRenderInfo(font.Size, out tex, out src, out dst);
return
new BindTextureProcedure(tex) +
new SetColorProcedure(font.Color) +
new RenderGeometryProcedure(BeginMode.Quads, new BufferGeometry(
new Point[] { dst.TopLeft, dst.TopRight, dst.BottomRight, dst.BottomLeft },
null,
new Point[] { src.TopLeft, src.TopRight, src.BottomRight, src.BottomLeft }));
}
}
// Sampled figure
SampledFigure sampled = Figure as SampledFigure;
if(sampled != null)
{
if(sampled.Tiled)
{
int size = 256;
byte[] data = new byte[size * size * 4];
Texture tex;
unsafe
{
fixed (byte* ptr = data)
{
if (Environment.CacheRead != null)
{
Environment.CacheRead.Read(data, 0, data.Length);
}
else
{
Texture.WriteImageARGB(sampled, new View(Rectangle.UnitSquare), size, size, ptr);
if (Environment.CacheWrite != null)
{
Environment.CacheWrite.Write(data, 0, data.Length);
}
}
tex = Texture.Create();
Texture.SetImage(Texture.Format.BGRA32, 0, size, size, ptr);
Texture.GenerateMipmap();
Texture.SetFilterMode(TextureMinFilter.LinearMipmapLinear, TextureMagFilter.Linear);
}
}
Procedure proc =
new BindTextureProcedure(tex) +
SetColorProcedure.White +
RenderViewProcedure.Singleton;
this._Procedures[sampled] = proc;
return proc;
}
}
// No rendering method available
throw new NotImplementedException();
}
/// <summary>
/// Gets a procedure that renders a figure confined to a certain shape.
/// </summary>
public Procedure GetShapeProcedure(Shape Shape, Figure Source, Environment Environment)
{
SolidFigure solidsource = Source as SolidFigure;
if (solidsource != null)
{
Color fillcol = solidsource.Color;
RectangleShape rectangle = Shape as RectangleShape;
if (rectangle != null)
{
Rectangle rect = rectangle.Rectangle;
return
BindTextureProcedure.Null +
new SetColorProcedure(fillcol) +
new RenderGeometryProcedure(BeginMode.Quads,
new BufferGeometry(new Point[] { rect.TopLeft, rect.TopRight, rect.BottomRight, rect.BottomLeft }, null, null));
}
PathShape pathshape = Shape as PathShape;
if (pathshape != null)
{
return
BindTextureProcedure.Null +
new SetColorProcedure(fillcol) +
this.GetPathProcedure(pathshape.Thickness, pathshape.Path, Environment);
}
}
throw new NotImplementedException();
}
/// <summary>
/// Creates a scaled form of a figure.
/// </summary>
public static ScaledFigure Scale(Figure Figure, double Factor)
{
if (Figure == null)
return null;
return new ScaledFigure(Factor, Figure);
}
/// <summary>
/// Creates a translated form of a figure.
/// </summary>
public static TranslatedFigure Translate(Figure Figure, Point Offset)
{
if (Figure == null)
return null;
return new TranslatedFigure(Offset, Figure);
}
public ModulatedFigure(Color Modulation, Figure Source)
{
this.Modulation = Modulation;
this.Source = Source;
}