public void Draw(GridWithGeometry <bool> grid, Graphics graphics, Size clientSize)
{
for (var iy = 0; iy < grid.JCount; ++iy)
{
var y = iy * grid.JStepSize;
graphics.DrawLine(this.Pen, 0f, (float)y, clientSize.Width, (float)y);
}
for (var ix = 0; ix < grid.ICount; ++ix)
{
var x = ix * grid.IStepSize;
graphics.DrawLine(this.Pen, (float)x, 0, (float)x, clientSize.Height);
}
for (var ix = 0; ix < grid.ICount; ++ix)
{
var x = ix * grid.IStepSize;
for (var iy = 0; iy < grid.JCount; ++iy)
{
var y = iy * grid.JStepSize;
if (grid[ix, iy])
{
graphics.FillRectangle(this.Brush, (float)x, (float)y, (float)(grid.IStepSize), (float)(grid.JStepSize));
}
}
}
}
public static void Border(this GridWithGeometry <bool> grid, List <List <Vector3d> > region)
{
foreach (var part in region)
{
for (var i = 0; i < part.Count - 1; ++i)
{
grid.Border(part[i], part[i + 1]);
}
grid.Border(part[0], part[part.Count - 1]);
}
}
private static void Border(this GridWithGeometry <bool> grid, Vector3d point0, Vector3d point1)
{
if (point0.Y > point1.Y)
{
Utils.Swap(ref point0, ref point1);
}
var ix0 = grid.GetCellIndexByX(point0.X);
var iy0 = grid.GetCellIndexByY(point0.Y);
var ix1 = grid.GetCellIndexByX(point1.X);
var iy1 = grid.GetCellIndexByY(point1.Y);
if (iy0 == iy1)
{
grid.SetValue(true, ix0, ix1, iy0, iy1);
return;
}
var k = (point1.X - point0.X) / (point1.Y - point0.Y); // x = f(y) = x0 + k * (y - y0)
var ixPrev = ix0;
int ixNext;
for (var iy = iy0 + 1; iy <= iy1; ++iy)
{
var y = iy * grid.JStepSize;
var x = point0.X + k * (y - point0.Y);
ixNext = grid.GetCellIndexByX(x);
grid.SetValue(true, ixPrev, ixNext, iy - 1, iy - 1);
ixPrev = ixNext;
}
ixNext = ix1;
grid.SetValue(true, ixPrev, ixNext, iy1, iy1);
}
