private void DrawLine(BoundingRectangle rectangle, Color color, Point p0, Point p1)
{
int x0 = p0.X;
int y0 = p0.Y;
int x1 = p1.X;
int y1 = p1.Y;
var rectMinPixel = MapAroundControl.MapToClient(rectangle.Min);
var rectMaxPixel = MapAroundControl.MapToClient(rectangle.Max);
int bitmapWidth = Math.Abs(rectMinPixel.X - rectMaxPixel.X);
int bitmapHeight = Math.Abs(rectMinPixel.Y - rectMaxPixel.Y);
int minX = Math.Min(p0.X, p1.X);
int minY = Math.Min(p0.Y, p1.Y);
int maxX = Math.Max(p0.X, p1.X);
int maxY = Math.Max(p0.Y, p1.Y);
if (bitmapWidth == 0)
{
bitmapWidth = 1;
}
if (bitmapHeight == 0)
{
bitmapHeight = 1;
}
Bitmap bitmap = new Bitmap(bitmapWidth, bitmapHeight);
RasterLayer layer;
layer = new RasterLayer();
layer.Alias = $"region_line_{_rasterLayers.Count}";
_rasterLayers.Add(layer);
_mapAroundMap.AddLayer(layer);
layer.AddRasterPreview(bitmap, rectangle, bitmap.Width, bitmap.Height);
layer.Visible = true;
//Rectangle lockRect = new Rectangle(minX, minY, maxX - minX, maxY - minY);
Rectangle lockRect = new Rectangle(0, 0, bitmapWidth, bitmapHeight);
BitmapData bitmapData = bitmap.LockBits(lockRect, ImageLockMode.WriteOnly, bitmap.PixelFormat);
byte[] pixelBytes = { color.B, color.G, color.R, color.A };
bool PlotPoint(int x, int y)
{
int plotX = x;
int plotY = y;
if (plotX < 0 || plotY < 0 || plotX >= bitmap.Width || plotY >= bitmap.Height)
{
return(true);
}
int positionByte = (y * bitmap.Width + x) * pixelBytes.Length;
Marshal.Copy(pixelBytes, 0, bitmapData.Scan0 + positionByte, pixelBytes.Length);
//bitmap.SetPixel(plotX, plotY, color);
return(true);
}
BresenhamLinePlotter plotter = new BresenhamLinePlotter();
plotter.CastLine(new Vector2Int(x0, y0), new Vector2Int(x1, y1), PlotPoint);
bitmap.UnlockBits(bitmapData);
MapAroundControl.RedrawMap();
}
