//ToPNG method will save the grid data in a png image format.
public static void ToImage(int _cellSize, IGrid _grid, RENDER_MODE _render, string _path, IImageEncoder imageEncoder)
{
//Setup image size.
int imageWidth = _cellSize * _grid.cols;
int imageHeight = _cellSize * _grid.rows;
//Create the image object.
Image <Rgb24> image = new Image <Rgb24>(new Configuration(), imageWidth + 1, imageHeight + 1, new Rgb24(255, 255, 255));
Rgb24 drawColour = new Rgb24(0, 0, 0);
//Create the image.
for (RENDER_MODE rendering = _render; rendering < RENDER_MODE.END; rendering++)
{
foreach (List <Cell> row in _grid.grid)
{
foreach (Cell cell in row)
{
float x1 = cell.col * _cellSize;
float y1 = cell.row * _cellSize;
float x2 = (cell.col + 1) * _cellSize;
float y2 = (cell.row + 1) * _cellSize;
//Switch mode.
switch (rendering)
{
case RENDER_MODE.OUTLINE:
//North Wall.
if (cell.neighbours[(int)DIRECTION.NORTH] == null)
{
image.Mutate(x => x.DrawLines(drawColour, 1.0f, new PointF[] { new PointF(x1, y1), new PointF(x2, y1) }));
}
//West Wall.
if (cell.neighbours[(int)DIRECTION.WEST] == null)
{
image.Mutate(x => x.DrawLines(drawColour, 1.0f, new PointF[] { new PointF(x1, y1), new PointF(x1, y2) }));
}
//East Wall.
if (!cell.IsLinked(cell.neighbours[(int)DIRECTION.EAST]))
{
image.Mutate(x => x.DrawLines(drawColour, 1.0f, new PointF[] { new PointF(x2, y1), new PointF(x2, y2) }));
}
//South Wall.
if (!cell.IsLinked(cell.neighbours[(int)DIRECTION.SOUTH]))
{
image.Mutate(x => x.DrawLines(drawColour, 1.0f, new PointF[] { new PointF(x1, y2), new PointF(x2, y2) }));
}
break;
case RENDER_MODE.COLOUR:
//Find the intensity of the colour.
float cellDistance = _grid.CellDistance(cell);
float cellLongestDistance = _grid.LongestDistance();
float percent = cellDistance / cellLongestDistance;
byte darkFill = (byte)(255.0f * percent);
byte brightFill = (byte)(128.0f + (127.0f * percent));
Rgb24 fillColour = new Rgb24(darkFill, brightFill, darkFill);
//Draw the rectangle
image.Mutate(x => x.Fill(fillColour, new RectangleF(x1, y1, _cellSize, _cellSize)));
break;
}
}
}
}
//Create file and save image to it.
FileStream fileStream = new FileStream(_path, FileMode.Create, FileAccess.Write);
image.Save(fileStream, imageEncoder);
//Close the file.
fileStream.Close();
//Log result.
Console.WriteLine("File created: " + _path);
}