我有一个非常简单的代码,可以在位图上绘制图像,图像必须在右下角绘制。我使用TranslateTransform来移动图像。这在Windows下运行时工作正常,但是,在Linux下以Mono运行时,TranslateTransform无效。
byte[] imageBytes = File.ReadAllBytes(@"/home/alexey/Downloads/test.png");
using (Bitmap bmp = new Bitmap(500, 500))
{
using (Graphics gr = Graphics.FromImage(bmp))
{
ImageAttributes attr = null;
using (Image image = Image.FromStream(new MemoryStream(imageBytes)))
{
GraphicsUnit srcGU = GraphicsUnit.Pixel;
RectangleF srcRect = image.GetBounds(ref srcGU);
RectangleF bounds = new RectangleF(0, 0, 100, 100);
// Destination points specify the bounding parallelogram.
PointF[] dstPoints = new PointF[]
{ bounds.Location,
new PointF(bounds.X + bounds.Width, bounds.Y),
new PointF(bounds.X, bounds.Y + bounds.Height) };
// Image must be in the in the lower right corner and it is if run the code under Windows.
// But is run code under linux, the image is in the upper left corner.
gr.TranslateTransform(400,400);
gr.DrawImage(image, dstPoints, srcRect, srcGU, attr);
}
}
bmp.Save(@"/home/alexey/Downloads/out.png", ImageFormat.Png);
}
当然,代码是真实代码的简化版本,必须在Windows和Linux环境中都能运行。我缩小了代码,发现linux下的问题发生是因为Graphics.Transform对linux下的Mono没有影响。有任何想法吗?
答案 0 :(得分:0)
我认为最简单的解决方案是简单地将d添加400到dstPoints的X和Y组件。