////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 21JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* draw a region.
* @param mapPen pen for the border of the region.
* @param mapBrush brush to fill the region.
* @param region the polygon object.
*/
private void DrawRegion(MapPen mapPen, MapBrush mapBrush, GeoPolygon region)
{
Pen pen = new Pen(new Color(mapPen.Color, false), mapPen.Width);
TextureBrush brush = GetImagePatternBrush(mapBrush);
ArrayList clippedPts = _sutherlandHodgman.ClipRegion(region.GetPoints());
GeoPoint[] screenPts = FromLatLngToMapPixel(clippedPts);
if (screenPts.Length > 2)
{
{
int[] xpoints = new int[screenPts.Length];
int[] ypoints = new int[screenPts.Length];
for (int i = 0; i < screenPts.Length; i++)
{
xpoints[i] = (int)screenPts[i].X;
ypoints[i] = (int)screenPts[i].Y;
}
Polygon polygon = new Polygon
{
Xpoints = xpoints,
Ypoints = ypoints,
NumOfNpoints = xpoints.Length
};
if (mapBrush.Pattern == 2)
{
SharedGraphics2D.SetPenAndBrush(pen, brush);
SharedGraphics2D.DrawPolygon(null, polygon);
SharedGraphics2D.FillPolygon(null, polygon);
}
else
{
SharedGraphics2D.SetDefaultPen(pen);
SharedGraphics2D.DrawPolygon(null, polygon);
}
}
}
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 21JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* get a texture brush based on region's brush attributes.
* @param brush the map brush object.
* @return the texture brush to used for the map brush.
*/
private TextureBrush GetImagePatternBrush(MapBrush brush)
{
switch (brush.Pattern)
{
case 1:
break;
case 2:
_imagePatternGraphics.SetColor(brush.ForeColor);
_imagePatternGraphics.FillRect( 0, 0, IMAGE_PATERN_WIDTH,
IMAGE_PATERN_WIDTH);
break;
case 3:
case 19:
case 20:
case 21:
case 22:
case 23:
_imagePatternGraphics.SetColor(brush.BackColor);
_imagePatternGraphics.FillRect( 0, 0, IMAGE_PATERN_WIDTH,
IMAGE_PATERN_WIDTH);
for (int i = 0; i < 4; i++)
{
_imagePatternGraphics.DrawLine(0, i * 4, IMAGE_PATERN_WIDTH, i * 4);
}
break;
case 4:
case 24:
case 25:
case 26:
case 27:
case 28:
_imagePatternGraphics.SetColor(brush.BackColor);
_imagePatternGraphics.FillRect( 0, 0, IMAGE_PATERN_WIDTH,
IMAGE_PATERN_WIDTH);
_imagePatternGraphics.SetColor(brush.ForeColor);
for (int i = 0; i < 4; i++)
{
_imagePatternGraphics.DrawLine(i * 4, 0, i * 4, IMAGE_PATERN_WIDTH);
}
break;
case 5:
case 29:
case 30:
case 31:
case 32:
case 33:
_imagePatternGraphics.SetColor(brush.BackColor);
_imagePatternGraphics.FillRect( 0, 0, IMAGE_PATERN_WIDTH,
IMAGE_PATERN_WIDTH);
_imagePatternGraphics.SetColor(brush.ForeColor);
for (int i = 0; i < 8; i++)
{
_imagePatternGraphics.DrawLine(0, i * 4, i * 4, 0);
}
break;
case 6:
case 34:
case 35:
case 36:
case 37:
case 38:
_imagePatternGraphics.SetColor(brush.BackColor);
_imagePatternGraphics.FillRect(0, 0, IMAGE_PATERN_WIDTH,
IMAGE_PATERN_WIDTH);
_imagePatternGraphics.SetColor(brush.ForeColor);
for (int i = 0; i < 8; i++)
{
_imagePatternGraphics.DrawLine(0, IMAGE_PATERN_WIDTH - i * 4, i * 4, 0);
}
break;
case 15:
case 16:
case 17:
case 18:
case 48:
case 49:
case 50:
case 51:
case 53:
_imagePatternGraphics.SetColor(brush.BackColor);
_imagePatternGraphics.FillRect(0, 0, IMAGE_PATERN_WIDTH,
IMAGE_PATERN_WIDTH);
_imagePatternGraphics.SetColor(brush.ForeColor);
for (int i = 0; i < 4; i++)
{
for (int j = 0; j < 4; j++)
{
_imagePatternGraphics.FillRect(i * 4, j * 4, 1, 1);
}
}
break;
default:
_imagePatternGraphics.SetColor(brush.BackColor);
_imagePatternGraphics.FillRect(0, 0, IMAGE_PATERN_WIDTH,
IMAGE_PATERN_WIDTH);
_imagePatternGraphics.SetColor(brush.ForeColor);
for (int i = 0; i < 4; i++)
{
_imagePatternGraphics.DrawLine(0, i * 4, IMAGE_PATERN_WIDTH, i * 4);
_imagePatternGraphics.DrawLine(i * 4, 0, i * 4, IMAGE_PATERN_WIDTH);
}
break;
}
int[] rgbData = _imagePattern.GetRGB();
TextureBrush textureBrush = new TextureBrush(rgbData, IMAGE_PATERN_WIDTH, IMAGE_PATERN_WIDTH);
return textureBrush;
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 21JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* get a texture brush based on region's brush attributes.
* @param brush the map brush object.
* @return the texture brush to used for the map brush.
*/
private TextureBrush GetImagePatternBrush(MapBrush brush)
{
switch (brush.Pattern)
{
case 1:
break;
case 2:
_imagePatternGraphics.SetColor(brush.ForeColor);
_imagePatternGraphics.FillRect(0, 0, IMAGE_PATERN_WIDTH,
IMAGE_PATERN_WIDTH);
break;
case 3:
case 19:
case 20:
case 21:
case 22:
case 23:
_imagePatternGraphics.SetColor(brush.BackColor);
_imagePatternGraphics.FillRect(0, 0, IMAGE_PATERN_WIDTH,
IMAGE_PATERN_WIDTH);
for (int i = 0; i < 4; i++)
{
_imagePatternGraphics.DrawLine(0, i * 4, IMAGE_PATERN_WIDTH, i * 4);
}
break;
case 4:
case 24:
case 25:
case 26:
case 27:
case 28:
_imagePatternGraphics.SetColor(brush.BackColor);
_imagePatternGraphics.FillRect(0, 0, IMAGE_PATERN_WIDTH,
IMAGE_PATERN_WIDTH);
_imagePatternGraphics.SetColor(brush.ForeColor);
for (int i = 0; i < 4; i++)
{
_imagePatternGraphics.DrawLine(i * 4, 0, i * 4, IMAGE_PATERN_WIDTH);
}
break;
case 5:
case 29:
case 30:
case 31:
case 32:
case 33:
_imagePatternGraphics.SetColor(brush.BackColor);
_imagePatternGraphics.FillRect(0, 0, IMAGE_PATERN_WIDTH,
IMAGE_PATERN_WIDTH);
_imagePatternGraphics.SetColor(brush.ForeColor);
for (int i = 0; i < 8; i++)
{
_imagePatternGraphics.DrawLine(0, i * 4, i * 4, 0);
}
break;
case 6:
case 34:
case 35:
case 36:
case 37:
case 38:
_imagePatternGraphics.SetColor(brush.BackColor);
_imagePatternGraphics.FillRect(0, 0, IMAGE_PATERN_WIDTH,
IMAGE_PATERN_WIDTH);
_imagePatternGraphics.SetColor(brush.ForeColor);
for (int i = 0; i < 8; i++)
{
_imagePatternGraphics.DrawLine(0, IMAGE_PATERN_WIDTH - i * 4, i * 4, 0);
}
break;
case 15:
case 16:
case 17:
case 18:
case 48:
case 49:
case 50:
case 51:
case 53:
_imagePatternGraphics.SetColor(brush.BackColor);
_imagePatternGraphics.FillRect(0, 0, IMAGE_PATERN_WIDTH,
IMAGE_PATERN_WIDTH);
_imagePatternGraphics.SetColor(brush.ForeColor);
for (int i = 0; i < 4; i++)
{
for (int j = 0; j < 4; j++)
{
_imagePatternGraphics.FillRect(i * 4, j * 4, 1, 1);
}
}
break;
default:
_imagePatternGraphics.SetColor(brush.BackColor);
_imagePatternGraphics.FillRect(0, 0, IMAGE_PATERN_WIDTH,
IMAGE_PATERN_WIDTH);
_imagePatternGraphics.SetColor(brush.ForeColor);
for (int i = 0; i < 4; i++)
{
_imagePatternGraphics.DrawLine(0, i * 4, IMAGE_PATERN_WIDTH, i * 4);
_imagePatternGraphics.DrawLine(i * 4, 0, i * 4, IMAGE_PATERN_WIDTH);
}
break;
}
int[] rgbData = _imagePattern.GetRGB();
TextureBrush textureBrush = new TextureBrush(rgbData, IMAGE_PATERN_WIDTH, IMAGE_PATERN_WIDTH);
return(textureBrush);
}