private void PrintToChart()
{
lock (_drawLocker)
{
Dispatcher.Invoke(new Action(() => {
int width = (int)chart.ActualWidth;
int height = (int)chart.ActualHeight;
wBitmap = new WriteableBitmap(width, height, 72, 72, PixelFormats.Bgr24, null);
wBitmap.Lock();
Bitmap backBitmap = new Bitmap(width, height, wBitmap.BackBufferStride, System.Drawing.Imaging.PixelFormat.Format24bppRgb, wBitmap.BackBuffer);
Graphics graphics = Graphics.FromImage(backBitmap);
graphics.Clear(System.Drawing.Color.White);//整张画布置为白色
//-----------------------画图内容-------------------------start
System.Drawing.Image image = graphEdit.GetCurrentGraph(this.GetBaseData(), XRange, YRange, false); //如果是面积曲线图将最后一个参数设为true
graphics.DrawImage(image, 0, 0);
//-----------------------画图内容-------------------------end
graphics.Flush();
graphics.Dispose();
graphics = null;
backBitmap.Dispose();
backBitmap = null;
wBitmap.AddDirtyRect(new Int32Rect(0, 0, width, height));
wBitmap.Unlock();
DisplayImage.Source = wBitmap;
}));
}
}
public void DrawCurve()
{
Init();
_Image = graphEdit.GetCurrentGraph(this.GetBaseData(), XRange, YRange, false); //如果是面积曲线图将最后一个参数设为true
this.InvalidateVisual();
}
