protected override void Render()
{
var root = Container.GetVisual();
var compositor = Window.Current.Compositor;
var canvasPathBuilder = new CanvasPathBuilder(new CanvasDevice());
if (IsStrokeRounded)
{
canvasPathBuilder.SetSegmentOptions(CanvasFigureSegmentOptions.ForceRoundLineJoin);
}
else
{
canvasPathBuilder.SetSegmentOptions(CanvasFigureSegmentOptions.None);
}
// Figure
if (IsPie)
{
StartPointX = CenterPointX;
StartPointY = CenterPointY;
}
else
{
StartPointX = Radius * Math.Cos(StartAngle * Degrees2Radians) + CenterPointX;
StartPointY = Radius * Math.Sin(StartAngle * Degrees2Radians) + CenterPointY;
}
canvasPathBuilder.BeginFigure(new Vector2((float)StartPointX, (float)StartPointY));
canvasPathBuilder.AddArc(
new Vector2((float)CenterPointX, (float)CenterPointY),
(float)Radius,
(float)Radius,
(float)(StartAngle * Degrees2Radians),
(float)(SweepAngle * Degrees2Radians));
canvasPathBuilder.EndFigure(IsClosed || IsPie ? CanvasFigureLoop.Closed : CanvasFigureLoop.Open);
// Path
var canvasGeometry = CanvasGeometry.CreatePath(canvasPathBuilder);
var compositionPath = new CompositionPath(canvasGeometry);
var pathGeometry = compositor.CreatePathGeometry();
pathGeometry.Path = compositionPath;
var spriteShape = compositor.CreateSpriteShape(pathGeometry);
spriteShape.FillBrush = compositor.CreateColorBrush(Fill);
spriteShape.StrokeThickness = (float)StrokeThickness;
spriteShape.StrokeBrush = compositor.CreateColorBrush(Stroke);
spriteShape.StrokeStartCap = IsStrokeRounded ? CompositionStrokeCap.Round : CompositionStrokeCap.Flat;
spriteShape.StrokeEndCap = IsStrokeRounded ? CompositionStrokeCap.Round : CompositionStrokeCap.Flat;
// Visual
var shapeVisual = compositor.CreateShapeVisual();
shapeVisual.Size = new Vector2((float)Container.ActualWidth, (float)Container.ActualHeight);
shapeVisual.Shapes.Add(spriteShape);
root.Children.RemoveAll();
root.Children.InsertAtTop(shapeVisual);
}
protected CanvasPathBuilder GetCanvasPathBuilder()
{
var canvasPathBuilder = new CanvasPathBuilder(CanvasDevice);
if (IsStrokeRounded)
{
canvasPathBuilder.SetSegmentOptions(CanvasFigureSegmentOptions.ForceRoundLineJoin);
}
else
{
canvasPathBuilder.SetSegmentOptions(CanvasFigureSegmentOptions.None);
}
return(canvasPathBuilder);
}
public void VerifySendPathTo()
{
//
// This calls each of the path functions, once, and verfies that it works.
// Sink behavior is verified in more detail in the geometry unit tests.
//
CanvasDevice device = new CanvasDevice();
CanvasPathBuilder pathBuilder = new CanvasPathBuilder(device);
pathBuilder.SetFilledRegionDetermination(CanvasFilledRegionDetermination.Alternate);
pathBuilder.BeginFigure(0, 0);
pathBuilder.AddLine(0, 0);
pathBuilder.AddQuadraticBezier(new Vector2(), new Vector2());
pathBuilder.AddCubicBezier(new Vector2(), new Vector2(), new Vector2());
// D2D tries to be smart about degenerate arcs and redundant set segment options, and may sometimes actually
// surpress them. Therefore, these calls use non-defaults.
pathBuilder.AddArc(new Vector2 {
X = 100, Y = 100
}, 10, 10, 90, CanvasSweepDirection.Clockwise, CanvasArcSize.Small);
pathBuilder.SetSegmentOptions(CanvasFigureSegmentOptions.ForceUnstroked);
pathBuilder.EndFigure(CanvasFigureLoop.Closed);
CanvasGeometry pathGeometry = CanvasGeometry.CreatePath(pathBuilder);
MyGeometryStreamReader myStreamReader = new MyGeometryStreamReader();
pathGeometry.SendPathTo(myStreamReader);
myStreamReader.Verify();
}
private CanvasPathBuilder CreateBorderGauge(ICanvasResourceCreator sender)
{
var center = new Vector2(0, 0);
float outerRadius = 49.0f;
float innerRadius = outerRadius * 0.7f;
var pathBuilder = new CanvasPathBuilder(sender);
float startAngle = (float)StartAngle;
float endAngle = (float)EndAngle;
float sweepAngle = (float)(StartAngle - EndAngle);
pathBuilder.BeginFigure(GetVector(outerRadius, startAngle));
pathBuilder.SetSegmentOptions(CanvasFigureSegmentOptions.ForceRoundLineJoin);
pathBuilder.AddArc(center, outerRadius, outerRadius, startAngle, -sweepAngle);
pathBuilder.AddLine(GetVector(innerRadius, endAngle));
pathBuilder.AddArc(center, innerRadius, innerRadius, endAngle, sweepAngle);
pathBuilder.EndFigure(CanvasFigureLoop.Closed);
return(pathBuilder);
}
private static CanvasGeometry CreateHeart(ICanvasResourceCreator resourceCreator, float scale, Vector2 center)
{
center = center - new Vector2(center.X / 2, center.Y / 2);
CanvasPathBuilder pathBuilder = new CanvasPathBuilder(resourceCreator);
var begin = new Vector2(0.47f, 0.34f) * scale + center;
pathBuilder.BeginFigure(begin);
pathBuilder.AddCubicBezier(new Vector2(0.66f, 0.19f) * scale + center, new Vector2(0.88f, 0.30f) * scale + center, new Vector2(0.88f, 0.48f) * scale + center);
pathBuilder.AddCubicBezier(new Vector2(0.88f, 0.66f) * scale + center, new Vector2(0.49f, 1) * scale + center, new Vector2(0.49f, 1) * scale + center);
pathBuilder.AddCubicBezier(new Vector2(0.49f, 1) * scale + center, new Vector2(0, 0.66f) * scale + center, new Vector2(0, 0.48f) * scale + center);
pathBuilder.AddCubicBezier(new Vector2(0, 0.30f) * scale + center, new Vector2(0.33f, 0.19f) * scale + center, begin);
pathBuilder.SetSegmentOptions(CanvasFigureSegmentOptions.ForceRoundLineJoin);
pathBuilder.EndFigure(CanvasFigureLoop.Closed);
var geometry = CanvasGeometry.CreatePath(pathBuilder);
return(geometry);
}
public void MoveTo(float x, float y)
{
if (!_isConfigured)
{
// Settings must be set from Canvas properties and before BeginFigure
_pathBuilder.SetSegmentOptions(CanvasFigureSegmentOptions.None);
_pathBuilder.SetFilledRegionDetermination(CanvasFilledRegionDetermination.Winding);
_isConfigured = true;
}
if (_isInFigure)
{
_pathBuilder.EndFigure(CanvasFigureLoop.Open);
}
_pathBuilder.BeginFigure(x, y);
_isInFigure = true;
}
public void Draw(ICanvasAnimatedControl sender, CanvasDrawingSession drawingSession)
{
if (currentThunder == null)
{
return;
}
// 保护原先画布的混合模式
var previousBlend = drawingSession.Blend;
drawingSession.Blend = blendState;
var builder = new CanvasPathBuilder(sender);
builder.BeginFigure(0, 0);
for (int i = 0; i < currentThunder.LifeLong; i++)
{
builder.AddLine(currentThunder.Path[i].X, currentThunder.Path[i].Y);
}
builder.EndFigure(CanvasFigureLoop.Open);
builder.SetSegmentOptions(CanvasFigureSegmentOptions.ForceRoundLineJoin);
// Draw the particle.
var path = CanvasGeometry.CreatePath(builder);
var NormalizeLifeTime = currentThunder.TimeSinceStart / currentThunder.Duration;
byte opacity = (byte)((NormalizeLifeTime - 1) * (NormalizeLifeTime - 1) * 255);
CanvasCommandList cl = new CanvasCommandList(sender);
using (CanvasDrawingSession clds = cl.CreateDrawingSession())
{
clds.DrawGeometry(path, currentThunder.Position, Color.FromArgb((byte)(0.75f * opacity), 255, 255, 255), 6 * currentThunder.Luminace);
}
var lightAmount = 20.6f * currentThunder.Luminace * (NormalizeLifeTime - 1) * (NormalizeLifeTime - 1);
blur.Source = cl;
blur.BlurAmount = lightAmount;
drawingSession.DrawImage(blur);
drawingSession.DrawGeometry(path, currentThunder.Position, Color.FromArgb(opacity, 255, 240, 180), 2 * currentThunder.Luminace);
drawingSession.Blend = previousBlend;
if (NormalizeLifeTime > 1)
{
currentThunder = null;
}
}
private CanvasGeometry CreateCanvasGeometry(CanvasVirtualControl device)
{
switch (GeometryType)
{
case GeometryType.Rectangle:
return(CanvasGeometry.CreateRectangle(device, (float)Points[0].X, (float)Points[0].Y,
(float)MapController.Instance.MousePosition.X - (float)Points[0].X, (float)MapController.Instance.MousePosition.Y - (float)Points[0].Y));
case GeometryType.Line:
CanvasPathBuilder pathBuilder = new CanvasPathBuilder(device);
pathBuilder.SetSegmentOptions(CanvasFigureSegmentOptions.ForceRoundLineJoin);
pathBuilder.BeginFigure((float)Points[0].X, (float)Points[0].Y);
pathBuilder.AddLine(new Vector2((float)MapController.Instance.MousePosition.X, (float)MapController.Instance.MousePosition.Y));
pathBuilder.EndFigure(CanvasFigureLoop.Open);
return(CanvasGeometry.CreatePath(pathBuilder));
case GeometryType.Circle:
return(CanvasGeometry.CreateCircle(device, new Vector2((float)Points[0].X, (float)Points[0].Y), GetSegmentLength.CalculateSegmentLength(Points[0], MapController.Instance.MousePosition)));
}
return(null);
}
public void Draw(ICanvasAnimatedControl sender, CanvasDrawingSession drawingSession)
{
if (currentThunder == null)
{
return;
}
// 保护原先画布的混合模式
var previousBlend = drawingSession.Blend;
drawingSession.Blend = blendState;
var builder = new CanvasPathBuilder(sender);
builder.BeginFigure(0, 0);
for (int i = 0; i < currentThunder.LifeLong; i++)
{
builder.AddLine(currentThunder.Path[i].X, currentThunder.Path[i].Y);
}
builder.EndFigure(CanvasFigureLoop.Open);
builder.SetSegmentOptions(CanvasFigureSegmentOptions.ForceRoundLineJoin);
// Draw the particle.
var path = CanvasGeometry.CreatePath(builder);
var NormalizeLifeTime = currentThunder.TimeSinceStart / currentThunder.Duration;
byte opacity = (byte)((NormalizeLifeTime - 1) * (NormalizeLifeTime - 1) * 255);
CanvasCommandList cl = new CanvasCommandList(sender);
using (CanvasDrawingSession clds = cl.CreateDrawingSession())
{
clds.DrawGeometry(path, currentThunder.Position, Color.FromArgb((byte)(0.75f * opacity), 255, 255, 255), 6 * currentThunder.Luminace);
}
var lightAmount = 20.6f * currentThunder.Luminace * (NormalizeLifeTime - 1) * (NormalizeLifeTime - 1);
blur.Source = cl;
blur.BlurAmount = lightAmount;
drawingSession.DrawImage(blur);
drawingSession.DrawGeometry(path, currentThunder.Position, Color.FromArgb(opacity, 255, 240, 180), 2 * currentThunder.Luminace);
drawingSession.Blend = previousBlend;
if (NormalizeLifeTime > 1)
{
currentThunder = null;
}
}
public static CanvasGeometry ToCanvasGeometry(this XPathGeometry pg, CanvasDrawingSession ds)
{
CanvasGeometry g;
using (var builder = new CanvasPathBuilder(ds))
{
if (pg.FillRule == XFillRule.EvenOdd)
{
builder.SetFilledRegionDetermination(CanvasFilledRegionDetermination.Alternate);
}
else
{
builder.SetFilledRegionDetermination(CanvasFilledRegionDetermination.Winding);
}
foreach (var pf in pg.Figures)
{
builder.BeginFigure(
(float)pf.StartPoint.X,
(float)pf.StartPoint.Y,
pf.IsFilled ? CanvasFigureFill.Default : CanvasFigureFill.DoesNotAffectFills);
foreach (var segment in pf.Segments)
{
var options = CanvasFigureSegmentOptions.None;
if (!segment.IsStroked)
{
options |= CanvasFigureSegmentOptions.ForceUnstroked;
}
if (segment.IsSmoothJoin)
{
options |= CanvasFigureSegmentOptions.ForceRoundLineJoin;
}
builder.SetSegmentOptions(options);
if (segment is XArcSegment)
{
var arcSegment = segment as XArcSegment;
builder.AddArc(
new N.Vector2(
(float)arcSegment.Point.X,
(float)arcSegment.Point.Y),
(float)(arcSegment.Size.Width / 2.0),
(float)(arcSegment.Size.Height / 2.0),
(float)arcSegment.RotationAngle,
arcSegment.SweepDirection == XSweepDirection.Clockwise ? CanvasSweepDirection.Clockwise : CanvasSweepDirection.CounterClockwise,
arcSegment.IsLargeArc ? CanvasArcSize.Large : CanvasArcSize.Small);
}
else if (segment is XBezierSegment)
{
var bezierSegment = segment as XBezierSegment;
builder.AddCubicBezier(
new N.Vector2(
(float)bezierSegment.Point1.X,
(float)bezierSegment.Point1.Y),
new N.Vector2(
(float)bezierSegment.Point2.X,
(float)bezierSegment.Point2.Y),
new N.Vector2(
(float)bezierSegment.Point3.X,
(float)bezierSegment.Point3.Y));
}
else if (segment is XLineSegment)
{
var lineSegment = segment as XLineSegment;
builder.AddLine(
new N.Vector2(
(float)lineSegment.Point.X,
(float)lineSegment.Point.Y));
}
else if (segment is XPolyBezierSegment)
{
var polyBezierSegment = segment as XPolyBezierSegment;
if (polyBezierSegment.Points.Count >= 3)
{
builder.AddCubicBezier(
new N.Vector2(
(float)polyBezierSegment.Points[0].X,
(float)polyBezierSegment.Points[0].Y),
new N.Vector2(
(float)polyBezierSegment.Points[1].X,
(float)polyBezierSegment.Points[1].Y),
new N.Vector2(
(float)polyBezierSegment.Points[2].X,
(float)polyBezierSegment.Points[2].Y));
}
if (polyBezierSegment.Points.Count > 3 &&
polyBezierSegment.Points.Count % 3 == 0)
{
for (int i = 3; i < polyBezierSegment.Points.Count; i += 3)
{
builder.AddCubicBezier(
new N.Vector2(
(float)polyBezierSegment.Points[i].X,
(float)polyBezierSegment.Points[i].Y),
new N.Vector2(
(float)polyBezierSegment.Points[i + 1].X,
(float)polyBezierSegment.Points[i + 1].Y),
new N.Vector2(
(float)polyBezierSegment.Points[i + 2].X,
(float)polyBezierSegment.Points[i + 2].Y));
}
}
}
else if (segment is XPolyLineSegment)
{
var polyLineSegment = segment as XPolyLineSegment;
if (polyLineSegment.Points.Count >= 1)
{
builder.AddLine(
new N.Vector2(
(float)polyLineSegment.Points[0].X,
(float)polyLineSegment.Points[0].Y));
}
if (polyLineSegment.Points.Count > 1)
{
for (int i = 1; i < polyLineSegment.Points.Count; i++)
{
builder.AddLine(
new N.Vector2(
(float)polyLineSegment.Points[i].X,
(float)polyLineSegment.Points[i].Y));
}
}
}
else if (segment is XPolyQuadraticBezierSegment)
{
var polyQuadraticSegment = segment as XPolyQuadraticBezierSegment;
if (polyQuadraticSegment.Points.Count >= 2)
{
builder.AddQuadraticBezier(
new N.Vector2(
(float)polyQuadraticSegment.Points[0].X,
(float)polyQuadraticSegment.Points[0].Y),
new N.Vector2(
(float)polyQuadraticSegment.Points[1].X,
(float)polyQuadraticSegment.Points[1].Y));
}
if (polyQuadraticSegment.Points.Count > 2 &&
polyQuadraticSegment.Points.Count % 2 == 0)
{
for (int i = 3; i < polyQuadraticSegment.Points.Count; i += 3)
{
builder.AddQuadraticBezier(
new N.Vector2(
(float)polyQuadraticSegment.Points[i].X,
(float)polyQuadraticSegment.Points[i].Y),
new N.Vector2(
(float)polyQuadraticSegment.Points[i + 1].X,
(float)polyQuadraticSegment.Points[i + 1].Y));
}
}
}
else if (segment is XQuadraticBezierSegment)
{
var qbezierSegment = segment as XQuadraticBezierSegment;
builder.AddQuadraticBezier(
new N.Vector2(
(float)qbezierSegment.Point1.X,
(float)qbezierSegment.Point1.Y),
new N.Vector2(
(float)qbezierSegment.Point2.X,
(float)qbezierSegment.Point2.Y));
}
else
{
throw new NotSupportedException("Not supported segment type: " + segment.GetType());
}
}
builder.EndFigure(pf.IsClosed ? CanvasFigureLoop.Closed : CanvasFigureLoop.Open);
}
g = CanvasGeometry.CreatePath(builder);
}
return(g);
}
private static CanvasGeometry CreateHeart(ICanvasResourceCreator resourceCreator, float scale, Vector2 center)
{
center = center - new Vector2(center.X / 2, center.Y / 2);
CanvasPathBuilder pathBuilder = new CanvasPathBuilder(resourceCreator);
var begin = new Vector2(0.47f, 0.34f) * scale + center;
pathBuilder.BeginFigure(begin);
pathBuilder.AddCubicBezier(new Vector2(0.66f, 0.19f) * scale + center, new Vector2(0.88f, 0.30f) * scale + center, new Vector2(0.88f, 0.48f) * scale + center);
pathBuilder.AddCubicBezier(new Vector2(0.88f, 0.66f) * scale + center, new Vector2(0.49f, 1) * scale + center, new Vector2(0.49f, 1)* scale + center);
pathBuilder.AddCubicBezier(new Vector2(0.49f, 1) * scale + center, new Vector2(0, 0.66f) * scale + center, new Vector2(0, 0.48f) * scale + center);
pathBuilder.AddCubicBezier(new Vector2(0, 0.30f) * scale + center, new Vector2(0.33f, 0.19f) * scale + center, begin);
pathBuilder.SetSegmentOptions(CanvasFigureSegmentOptions.ForceRoundLineJoin);
pathBuilder.EndFigure(CanvasFigureLoop.Closed);
var geometry = CanvasGeometry.CreatePath(pathBuilder);
return geometry;
}
public static CanvasGeometry ToCanvasGeometry(this XPathGeometry pg, CanvasDrawingSession ds)
{
CanvasGeometry g;
using (var builder = new CanvasPathBuilder(ds))
{
if (pg.FillRule == XFillRule.EvenOdd)
builder.SetFilledRegionDetermination(CanvasFilledRegionDetermination.Alternate);
else
builder.SetFilledRegionDetermination(CanvasFilledRegionDetermination.Winding);
foreach (var pf in pg.Figures)
{
builder.BeginFigure(
(float)pf.StartPoint.X,
(float)pf.StartPoint.Y,
pf.IsFilled ? CanvasFigureFill.Default : CanvasFigureFill.DoesNotAffectFills);
foreach (var segment in pf.Segments)
{
var options = CanvasFigureSegmentOptions.None;
if (!segment.IsStroked)
options |= CanvasFigureSegmentOptions.ForceUnstroked;
if (segment.IsSmoothJoin)
options |= CanvasFigureSegmentOptions.ForceRoundLineJoin;
builder.SetSegmentOptions(options);
if (segment is XArcSegment)
{
var arcSegment = segment as XArcSegment;
builder.AddArc(
new N.Vector2(
(float)arcSegment.Point.X,
(float)arcSegment.Point.Y),
(float)(arcSegment.Size.Width / 2.0),
(float)(arcSegment.Size.Height / 2.0),
(float)arcSegment.RotationAngle,
arcSegment.SweepDirection == XSweepDirection.Clockwise ? CanvasSweepDirection.Clockwise : CanvasSweepDirection.CounterClockwise,
arcSegment.IsLargeArc ? CanvasArcSize.Large : CanvasArcSize.Small);
}
else if (segment is XBezierSegment)
{
var bezierSegment = segment as XBezierSegment;
builder.AddCubicBezier(
new N.Vector2(
(float)bezierSegment.Point1.X,
(float)bezierSegment.Point1.Y),
new N.Vector2(
(float)bezierSegment.Point2.X,
(float)bezierSegment.Point2.Y),
new N.Vector2(
(float)bezierSegment.Point3.X,
(float)bezierSegment.Point3.Y));
}
else if (segment is XLineSegment)
{
var lineSegment = segment as XLineSegment;
builder.AddLine(
new N.Vector2(
(float)lineSegment.Point.X,
(float)lineSegment.Point.Y));
}
else if (segment is XPolyBezierSegment)
{
var polyBezierSegment = segment as XPolyBezierSegment;
if (polyBezierSegment.Points.Count >= 3)
{
builder.AddCubicBezier(
new N.Vector2(
(float)polyBezierSegment.Points[0].X,
(float)polyBezierSegment.Points[0].Y),
new N.Vector2(
(float)polyBezierSegment.Points[1].X,
(float)polyBezierSegment.Points[1].Y),
new N.Vector2(
(float)polyBezierSegment.Points[2].X,
(float)polyBezierSegment.Points[2].Y));
}
if (polyBezierSegment.Points.Count > 3
&& polyBezierSegment.Points.Count % 3 == 0)
{
for (int i = 3; i < polyBezierSegment.Points.Count; i += 3)
{
builder.AddCubicBezier(
new N.Vector2(
(float)polyBezierSegment.Points[i].X,
(float)polyBezierSegment.Points[i].Y),
new N.Vector2(
(float)polyBezierSegment.Points[i + 1].X,
(float)polyBezierSegment.Points[i + 1].Y),
new N.Vector2(
(float)polyBezierSegment.Points[i + 2].X,
(float)polyBezierSegment.Points[i + 2].Y));
}
}
}
else if (segment is XPolyLineSegment)
{
var polyLineSegment = segment as XPolyLineSegment;
if (polyLineSegment.Points.Count >= 1)
{
builder.AddLine(
new N.Vector2(
(float)polyLineSegment.Points[0].X,
(float)polyLineSegment.Points[0].Y));
}
if (polyLineSegment.Points.Count > 1)
{
for (int i = 1; i < polyLineSegment.Points.Count; i++)
{
builder.AddLine(
new N.Vector2(
(float)polyLineSegment.Points[i].X,
(float)polyLineSegment.Points[i].Y));
}
}
}
else if (segment is XPolyQuadraticBezierSegment)
{
var polyQuadraticSegment = segment as XPolyQuadraticBezierSegment;
if (polyQuadraticSegment.Points.Count >= 2)
{
builder.AddQuadraticBezier(
new N.Vector2(
(float)polyQuadraticSegment.Points[0].X,
(float)polyQuadraticSegment.Points[0].Y),
new N.Vector2(
(float)polyQuadraticSegment.Points[1].X,
(float)polyQuadraticSegment.Points[1].Y));
}
if (polyQuadraticSegment.Points.Count > 2
&& polyQuadraticSegment.Points.Count % 2 == 0)
{
for (int i = 3; i < polyQuadraticSegment.Points.Count; i += 3)
{
builder.AddQuadraticBezier(
new N.Vector2(
(float)polyQuadraticSegment.Points[i].X,
(float)polyQuadraticSegment.Points[i].Y),
new N.Vector2(
(float)polyQuadraticSegment.Points[i + 1].X,
(float)polyQuadraticSegment.Points[i + 1].Y));
}
}
}
else if (segment is XQuadraticBezierSegment)
{
var qbezierSegment = segment as XQuadraticBezierSegment;
builder.AddQuadraticBezier(
new N.Vector2(
(float)qbezierSegment.Point1.X,
(float)qbezierSegment.Point1.Y),
new N.Vector2(
(float)qbezierSegment.Point2.X,
(float)qbezierSegment.Point2.Y));
}
else
{
throw new NotSupportedException("Not supported segment type: " + segment.GetType());
}
}
builder.EndFigure(pf.IsClosed ? CanvasFigureLoop.Closed : CanvasFigureLoop.Open);
}
g = CanvasGeometry.CreatePath(builder);
}
return g;
}
public void VerifySendPathTo()
{
//
// This calls each of the path functions, once, and verfies that it works.
// Sink behavior is verified in more detail in the geometry unit tests.
//
CanvasDevice device = new CanvasDevice();
CanvasPathBuilder pathBuilder = new CanvasPathBuilder(device);
pathBuilder.SetFilledRegionDetermination(CanvasFilledRegionDetermination.Alternate);
pathBuilder.BeginFigure(0, 0);
pathBuilder.AddLine(0, 0);
pathBuilder.AddQuadraticBezier(new Vector2(), new Vector2());
pathBuilder.AddCubicBezier(new Vector2(), new Vector2(), new Vector2());
// D2D tries to be smart about degenerate arcs and redundant set segment options, and may sometimes actually
// surpress them. Therefore, these calls use non-defaults.
pathBuilder.AddArc(new Vector2 { X = 100, Y = 100 }, 10, 10, 90, CanvasSweepDirection.Clockwise, CanvasArcSize.Small);
pathBuilder.SetSegmentOptions(CanvasFigureSegmentOptions.ForceUnstroked);
pathBuilder.EndFigure(CanvasFigureLoop.Closed);
CanvasGeometry pathGeometry = CanvasGeometry.CreatePath(pathBuilder);
MyGeometryStreamReader myStreamReader = new MyGeometryStreamReader();
pathGeometry.SendPathTo(myStreamReader);
myStreamReader.Verify();
}
public static void DrawGeometry(Tile.Feature feature, float scale, CanvasDrawingSession session, Windows.UI.Color fillColor, Windows.UI.Color strokeColor, float innerLineWidth, float outerLineWidth, CanvasStrokeStyle strokeStyle)
{
Queue <uint> q = new Queue <uint>(feature.Geometries);
float cx = 0;
float cy = 0;
List <System.Numerics.Vector2> poly = new List <System.Numerics.Vector2>();
while (q.Count > 0)
{
var cmd = DecodeCommand(q.Dequeue());
switch (cmd.Item1)
{
case GeometryCommand.MoveTo:
cx += DecodeParameter(q.Dequeue()) * scale;
cy += DecodeParameter(q.Dequeue()) * scale;
poly.Add(new System.Numerics.Vector2(cx, cy));
break;
case GeometryCommand.LineTo:
for (int it = 0; it < cmd.count; it++)
{
cx += DecodeParameter(q.Dequeue()) * scale;
cy += DecodeParameter(q.Dequeue()) * scale;
poly.Add(new System.Numerics.Vector2(cx, cy));
}
break;
case GeometryCommand.ClosePath:
if (feature.Type == Tile.GeomType.Polygon)
{
CanvasGeometry geom = CanvasGeometry.CreatePolygon(session.Device, poly.ToArray());
var cf = CanvasCachedGeometry.CreateFill(geom);
var cd = CanvasCachedGeometry.CreateStroke(geom, 1);
cache.Add(cf); cache.Add(cd);
session.DrawCachedGeometry(cf, fillColor);
session.DrawCachedGeometry(cd, strokeColor);
//session.FillGeometry(geom, fillColor);
//session.DrawGeometry(geom, strokeColor);
}
poly.Clear();
break;
}
}
if (feature.Type == Tile.GeomType.Linestring)
{
CanvasPathBuilder pathBuilder = new CanvasPathBuilder(session);
pathBuilder.SetSegmentOptions(CanvasFigureSegmentOptions.ForceRoundLineJoin);
pathBuilder.BeginFigure(poly[0]);
for (int it = 1; it < (poly.Count); it++)
{
pathBuilder.AddLine(poly[it]);
//if(outerLineWidth > 0)
// session.DrawLine(poly[it], poly[it + 1], strokeColor, outerLineWidth, strokeStyle);
//if (innerLineWidth > 0)
// session.DrawLine(poly[it], poly[it + 1], fillColor, innerLineWidth, strokeStyle);
}
pathBuilder.EndFigure(CanvasFigureLoop.Open);
var geometry = CanvasGeometry.CreatePath(pathBuilder);
if (outerLineWidth > 0)
{
var cg = CanvasCachedGeometry.CreateStroke(geometry, outerLineWidth, strokeStyle);
cache.Add(cg);
session.DrawCachedGeometry(cg, strokeColor);
//session.DrawGeometry(geometry, strokeColor, outerLineWidth, strokeStyle);
}
if (innerLineWidth > 0)
{
var cg = CanvasCachedGeometry.CreateStroke(geometry, innerLineWidth, strokeStyle);
cache.Add(cg);
session.DrawCachedGeometry(cg, fillColor);
//session.DrawGeometry(geometry, fillColor, innerLineWidth, strokeStyle);
}
poly.Clear();
}
}