本文整理汇总了C#中CGContext.SetRGBStrokeColor方法的典型用法代码示例。如果您正苦于以下问题:C# CGContext.SetRGBStrokeColor方法的具体用法?C# CGContext.SetRGBStrokeColor怎么用?C# CGContext.SetRGBStrokeColor使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类CGContext
的用法示例。
在下文中一共展示了CGContext.SetRGBStrokeColor方法的4个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: DrawInContext
public override void DrawInContext (CGContext context)
{
// Drawing with a white stroke color
context.SetRGBStrokeColor (1, 1, 1, 1);
// And drawing with a blue fill color
context.SetRGBFillColor (0, 0, 1, 1);
// Draw them with a 2 stroke width so they are a bit more visible.
context.SetLineWidth (2);
// Add Rect to the current path, then stroke it
context.AddRect (new RectangleF (30, 30, 60, 60));
context.StrokePath ();
// Stroke Rect convenience that is equivalent to above
context.StrokeRect (new RectangleF (30, 120, 60, 60));
// Stroke rect convenience equivalent to the above, plus a call to context.SetLineWidth ().
context.StrokeRectWithWidth (new RectangleF (30, 210, 60, 60), 10);
// Demonstate the stroke is on both sides of the path.
context.SaveState ();
context.SetRGBStrokeColor (1, 0, 0, 1);
context.StrokeRectWithWidth (new RectangleF (30, 210, 60, 60), 2);
context.RestoreState ();
var rects = new RectangleF []
{
new RectangleF (120, 30, 60, 60),
new RectangleF (120, 120, 60, 60),
new RectangleF (120, 210, 60, 60),
};
// Bulk call to add rects to the current path.
context.AddRects (rects);
context.StrokePath ();
// Create filled rectangles via two different paths.
// Add/Fill path
context.AddRect (new RectangleF (210, 30, 60, 60));
context.FillPath ();
// Fill convienience.
context.FillRect (new RectangleF (210, 120, 60, 60));
}
示例2: DrawInContext
public override void DrawInContext (CGContext context)
{
context.SetRGBStrokeColor (1, 1, 1, 1f);
// Draw lines with a stroke width from 1-10
for (int i = 1; i <= 10; ++i) {
context.SetLineWidth (i);
context.MoveTo (10, (float) i * 20.5f);
context.AddLineToPoint (310, (float)i * 20.5f);
context.StrokePath ();
}
// Demonstration that stroke is even on both sides of the line
context.SetLineWidth(15);
context.MoveTo (10, 245.5f);
context.AddLineToPoint (310, 245.5f);
context.StrokePath ();
context.SetRGBStrokeColor (1, 0, 0, 1);
context.SetLineWidth (3);
context.MoveTo (10, 245.5f);
context.AddLineToPoint (310, 245.5f);
context.StrokePath ();
}
示例3: DrawInContext
public override void DrawInContext (CGContext context)
{
var imageRect = new RectangleF (8, 8, 64, 64);
// Note: The images are actually drawn upside down because Quartz image drawing expects
// the coordinate system to have the origin in the lower-left corner, but a UIView
// puts the origin in the upper-left corner. For the sake of brevity (and because
// it likely would go unnoticed for the image used) this is not addressed here.
// For the demonstration of PDF drawing however, it is addressed, as it would definately
// be noticed, and one method of addressing it is shown there.
// Draw the image in the upper left corner (0,0) with size 64x64
context.DrawImage (imageRect, image);
// Tile the same image across the bottom of the view
// CGContextDrawTiledImage() will fill the entire clipping area with the image, so to avoid
// filling the entire view, we'll clip the view to the rect below. This rect extends
// past the region of the view, but since the view's rectangle has already been applied as a clip
// to our drawing area, it will be intersected with this rect to form the final clipping area
context.ClipToRect(new RectangleF (0, 80, Bounds.Width, Bounds.Height));
// The origin of the image rect works similarly to the phase parameter for SetLineDash and
// SetPatternPhase and specifies where in the coordinate system the "first" image is drawn.
// The size (previously set to 64x64) specifies the size the image is scaled to before being tiled.
imageRect.X = 32;
imageRect.Y = 112;
context.DrawTiledImage (imageRect, image);
// Highlight the "first" image from the DrawTiledImage call.
context.SetRGBFillColor (1, 0, 0, 0.5f);
context.FillRect (imageRect);
// And stroke the clipped area
context.SetLineWidth (3);
context.SetRGBStrokeColor (1, 0, 0, 1);
context.StrokeRect (context.GetClipBoundingBox ());
}
示例4: DrawInContext
//.........这里部分代码省略.........
new RectangleF(170, 280, 120, 120),
};
// Linear Gradients
PointF start, end;
// Clip to area to draw the gradient, and draw it. Since we are clipping, we save the graphics state
// so that we can revert to the previous larger area.
context.SaveState();
context.ClipToRect(clips[0]);
// A linear gradient requires only a starting & ending point.
// The colors of the gradient are linearly interpolated along the line segment connecting these two points
// A gradient location of 0 means that color is expressed fully at the 'start' point
// a location of 1 means that color is expressed fully at the 'end' point.
// The gradient fills outwards perpendicular to the line segment connectiong start & end points
// (which is why we need to clip the context, or the gradient would fill beyond where we want it to).
// The gradient options (last) parameter determines what how to fill the clip area that is "before" and "after"
// the line segment connecting start & end.
start = demoLGStart(clips[0]);
end = demoLGEnd(clips[0]);
context.DrawLinearGradient(gradient, start, end, 0);
context.RestoreState();
// Same as above for each combination of CGGradientDrawingOptions.DrawsBeforeStartLocation & CGGradientDrawingOptions.DrawsAfterEndLocation
context.SaveState();
context.ClipToRect(clips[1]);
start = demoLGStart(clips[1]);
end = demoLGEnd(clips[1]);
context.DrawLinearGradient(gradient, start, end, CGGradientDrawingOptions.DrawsBeforeStartLocation);
context.RestoreState();
context.SaveState();
context.ClipToRect(clips[2]);
start = demoLGStart(clips[2]);
end = demoLGEnd(clips[2]);
context.DrawLinearGradient(gradient, start, end, CGGradientDrawingOptions.DrawsAfterEndLocation);
context.RestoreState();
context.SaveState();
context.ClipToRect(clips[3]);
start = demoLGStart(clips[3]);
end = demoLGEnd(clips[3]);
context.DrawLinearGradient(gradient, start, end, CGGradientDrawingOptions.DrawsBeforeStartLocation | CGGradientDrawingOptions.DrawsAfterEndLocation);
context.RestoreState();
// Radial Gradients
float startRadius, endRadius;
// Clip to area to draw the gradient, and draw it. Since we are clipping, we save the graphics state
// so that we can revert to the previous larger area.
context.SaveState();
context.ClipToRect(clips[4]);
// A radial gradient requires a start & end point as well as a start & end radius.
// Logically a radial gradient is created by linearly interpolating the center, radius and color of each
// circle using the start and end point for the center, start and end radius for the radius, and the color ramp
// inherant to the gradient to create a set of stroked circles that fill the area completely.
// The gradient options specify if this interpolation continues past the start or end points as it does with
// linear gradients.
start = end = demoRGCenter(clips[4]);
startRadius = demoRGInnerRadius(clips[4]);
endRadius = demoRGOuterRadius(clips[4]);
context.DrawRadialGradient(gradient, start, startRadius, end, endRadius, 0);
context.RestoreState();
// Same as above for each combination of CGGradientDrawingOptions.DrawsBeforeStartLocation & CGGradientDrawingOptions.DrawsAfterEndLocation
context.SaveState();
context.ClipToRect(clips[5]);
start = end = demoRGCenter(clips[5]);
startRadius = demoRGInnerRadius(clips[5]);
endRadius = demoRGOuterRadius(clips[5]);
context.DrawRadialGradient(gradient, start, startRadius, end, endRadius, CGGradientDrawingOptions.DrawsBeforeStartLocation);
context.RestoreState();
context.SaveState();
context.ClipToRect(clips[6]);
start = end = demoRGCenter(clips[6]);
startRadius = demoRGInnerRadius(clips[6]);
endRadius = demoRGOuterRadius(clips[6]);
context.DrawRadialGradient(gradient, start, startRadius, end, endRadius, CGGradientDrawingOptions.DrawsAfterEndLocation);
context.RestoreState();
context.SaveState();
context.ClipToRect(clips[7]);
start = end = demoRGCenter(clips[7]);
startRadius = demoRGInnerRadius(clips[7]);
endRadius = demoRGOuterRadius(clips[7]);
context.DrawRadialGradient(gradient, start, startRadius, end, endRadius, CGGradientDrawingOptions.DrawsBeforeStartLocation | CGGradientDrawingOptions.DrawsAfterEndLocation);
context.RestoreState();
// Show the clipping areas
context.SetLineWidth(2);
context.SetRGBStrokeColor(1, 0, 0, 1);
context.AddRects(clips);
context.StrokePath();
}