本文整理汇总了C#中CGBitmapContext.SetStrokeColor方法的典型用法代码示例。如果您正苦于以下问题：C# CGBitmapContext.SetStrokeColor方法的具体用法？C# CGBitmapContext.SetStrokeColor怎么用？C# CGBitmapContext.SetStrokeColor使用的例子？那么恭喜您, 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CGBitmapContext的用法示例。
在下文中一共展示了CGBitmapContext.SetStrokeColor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: MakeEmpty
static UIImage MakeEmpty ()
{
using (var cs = CGColorSpace.CreateDeviceRGB ()){
using (var bit = new CGBitmapContext (IntPtr.Zero, dimx, dimy, 8, 0, cs, CGImageAlphaInfo.PremultipliedFirst)){
bit.SetStrokeColor (1, 0, 0, 0.5f);
bit.FillRect (new RectangleF (0, 0, dimx, dimy));
return UIImage.FromImage (bit.ToImage ());
}
}
}示例2: UpdateRouteView
public void UpdateRouteView()
{
using(var context = new CGBitmapContext(null, (int)_RouteView.Frame.Width, (int)_RouteView.Frame.Height, 8,
(int)(4 * _RouteView.Frame.Width), CGColorSpace.CreateDeviceRGB(), CGImageAlphaInfo.PremultipliedLast))
{
context.SetStrokeColor(LineColor.CGColor);
context.SetFillColor(0.0f, 0.0f, 1.0f, 1.0f);
context.SetLineWidth(3.0f);
for (int i = 0; i < _Routes.Count(); i++)
{
var route = _Routes[i];
var point = _MapView.ConvertCoordinate(route.Coordinate, _RouteView);
if(i == 0)
context.MoveTo(point.X, _RouteView.Frame.Height - point.Y);
else
context.AddLineToPoint(point.X, _RouteView.Frame.Height - point.Y);
}
context.StrokePath();
var cgImage = context.ToImage();
var image = UIImage.FromImage(cgImage);
_RouteView.Image = image;
}
}示例3: DrawPathAsBackground
// Draws our animation path on the background image, just to show it
protected void DrawPathAsBackground ()
{
// create our offscreen bitmap context
var bitmapSize = new SizeF (View.Frame.Size);
using (var context = new CGBitmapContext (
IntPtr.Zero,
(int)bitmapSize.Width, (int)bitmapSize.Height, 8,
(int)(4 * bitmapSize.Width), CGColorSpace.CreateDeviceRGB (),
CGImageAlphaInfo.PremultipliedFirst)) {
// convert to View space
var affineTransform = CGAffineTransform.MakeIdentity ();
// invert the y axis
affineTransform.Scale (1f, -1f);
// move the y axis up
affineTransform.Translate (0, View.Frame.Height);
context.ConcatCTM (affineTransform);
// actually draw the path
context.AddPath (animationPath);
context.SetStrokeColor (UIColor.LightGray.CGColor);
context.SetLineWidth (3f);
context.StrokePath ();
// set what we've drawn as the backgound image
backgroundImage.Image = UIImage.FromImage (context.ToImage());
}
}示例4: MakeEmpty
public static UIImage MakeEmpty (Size size)
{
using (var cs = CGColorSpace.CreateDeviceRGB ()) {
using (var bit = new CGBitmapContext (IntPtr.Zero, size.Width, size.Height, 8, 0, cs, CGImageAlphaInfo.PremultipliedFirst)) {
bit.SetStrokeColor (0, 0, 0, 0);
bit.SetFillColor (1, 1, 1, 1);
bit.FillRect (new RectangleF (0, 0, size.Width, size.Height));
return UIImage.FromImage (bit.ToImage ());
}
}
}