public void Extends(BBOX bbox)
{
MinX = Math.Min(MinX, bbox.MinX);
MinY = Math.Min(MinY, bbox.MinY);
MaxX = Math.Max(MaxX, bbox.MaxX);
MaxY = Math.Max(MaxY, bbox.MaxY);
}
/// <summary>
/// replace the specified region of source bitmap with part bitmap
/// </summary>
public static void Replace(Bitmap source, Bitmap part, BBOX region)
{
if (part.Height != region.Height || part.Width != region.Width)
throw new SizeNotMatchException();
for (int i = 0; i < region.Height; i++)
for (int j = 0; j < region.Width; j++)
{
Color color = part.GetPixel(j,i);
source.SetPixel(region.MinX + j, region.MinY + i, color);
}
}
/// <summary>
///
/// </summary>
/// <param name="cartesBbox"></param>
/// <param name="imgOrigin">the cartes coordinate of img origin</param>
/// <param name="xRes">resolution of x-axis, defined as 1 pixel/spatial_width</param>
/// <param name="yRes">resolution of y-axis, defined as 1 pixel/spatial_height</param>
/// <returns></returns>
public static BBOX Cartes2Image(BBOXF cartesBbox, Size imgSize, BBOXF spatialRegion)
{
PointF[] points = new PointF[2];
points[0] = new PointF(cartesBbox.MinX, cartesBbox.MinY);
points[1] = new PointF(cartesBbox.MaxX, cartesBbox.MaxY);
PointF[] imgPoints = Cartes2Image(points, imgSize, spatialRegion);
BBOX imgBbox = new BBOX();
imgBbox.MinX = (int)Math.Floor(imgPoints[0].X);
imgBbox.MinY = (int)Math.Floor(imgPoints[1].Y);
imgBbox.MaxX = (int)Math.Floor(imgPoints[1].X - ROUNDERROR);
imgBbox.MaxY = (int)Math.Floor(imgPoints[0].Y - ROUNDERROR);
return imgBbox;
}
protected override Bitmap generateCacheBitmap(BBOXF spatialRegion, Size cacheSize)
{
foreach (Scene scene in _sceneManager.Scenes)
{
int x = ((int)scene.RegionInfo.RegionLocX) * 256;
int y = ((int)scene.RegionInfo.RegionLocY) * 256;
if (m_layerRegion == null)
{
m_layerRegion = new BBOXF(x, y, x + 256, y + 256);
}
else
{
BBOXF newBBox = new BBOXF(x, y, x + 256, y + 256);
m_layerRegion.Extends(newBBox);
}
}
try
{
//TODO add resolution
BBOX imgMapBBox = new BBOX(0, 0, (int)Math.Floor(m_layerRegion.Width - CRS.ROUNDERROR), (int)Math.Floor(m_layerRegion.Height - CRS.ROUNDERROR));
Bitmap mapImg = new Bitmap(imgMapBBox.Width, imgMapBBox.Height);
foreach (Scene scene in _sceneManager.Scenes)
{
int x = (int)scene.RegionInfo.RegionLocX;
int y = (int)scene.RegionInfo.RegionLocY;
BBOX imgRegionBBox = CRS.Cartes2Image(new BBOXF(x * 256, y * 256, x * 256 + 256, y * 256 + 256),
mapImg.Size, m_layerRegion);
Bitmap regionImg = ImageToolBox.CreateBitmapFromMap(scene.Heightmap);
ImageToolBox.Replace(mapImg, regionImg, imgRegionBBox);
}
return mapImg;
}
catch (Exception e)
{
m_log.Info("Terrain generation failed!");
m_log.Info("Exception is:" + e.ToString());
return null;
}
}