public void SetValuesAt(GridIntersect loc, double width, double height, byte value)
{
int indexW = (int)Math.Round(width / _meshSize);
int indexH = (int)Math.Round(height / _meshSize);
int startX = Math.Max(loc.X - indexW, 0);
int startY = loc.Y;
int endX = Math.Min(loc.X + indexW, xLength - 1);
int endY = Math.Min(loc.Y + indexH, yLength - 1);
for (int xi = startX; xi <= endX; xi++)
{
for (int yi = startY; yi <= endY; yi++)
{
grid[xi, yi] = value;
}
}
}
public void SetRadialValuesAt(GridIntersect loc, double width, double height, byte value)
{
int indexWidth = (int)Math.Round(width / _meshSize);
int indexHeight = (int)Math.Round(height / _meshSize);
int startY = Math.Max(0, loc.Y);
double radius = width / 2.0;
int endY = startY;
if (indexHeight > 0)
{
endY = Math.Max(0, Math.Min(loc.Y + indexHeight, yLength - 1));
}
for (int yi = startY; yi <= endY; yi++)
{
var circleCenter = new GridIntersect {
X = loc.X, Y = yi
};
SetRadialValuesAt(circleCenter, radius, value);
}
}
public void SetRadialValuesAt(GridIntersect loc, double radius, byte value)
{
int indexR = (int)Math.Round(radius / _meshSize);
int indexR2 = (int)Math.Pow(indexR, 2.0);
int startX = Math.Max(loc.X - indexR, 0);
int startY = loc.Y;
int endX = Math.Min(loc.X + indexR, xLength - 1);
int endY = Math.Min(loc.Y + indexR, yLength - 1);
for (int xi = startX; xi <= endX; xi++)
{
for (int yi = startY; yi <= endY; yi++)
{
double r2 = Math.Pow(xi - loc.X, 2.0) + Math.Pow(yi - loc.Y, 2.0);
if (r2 <= indexR2)
{
SetValue(xi, yi, value);
}
}
}
}
public void SetValueAt(GridIntersect loc, byte value)
{
SetValueAt(loc.X, loc.Y, value);
}