//gridLines[areaX][areaY][direction(x=0,y=1)][EachLines]
internal virtual bool[][] getQRCodeMatrix(bool[][] image, SamplingGrid gridLines)
{
//int gridSize = gridLines.getWidth() * gridLines.getWidth(0,0);
int gridSize = gridLines.TotalWidth;
// now this is done within the SamplingGrid class...
// if (gridLines.getWidth() >= 2)
// gridSize-=1;
canvas.println("gridSize=" + gridSize);
//canvas.println("gridLines.getWidth() * gridLines.getWidth(0,0) = "+gridLines.getWidth() * gridLines.getWidth(0,0));
Point bottomRightPoint = null;
bool[][] sampledMatrix = new bool[gridSize][];
for (int i = 0; i < gridSize; i++)
{
sampledMatrix[i] = new bool[gridSize];
}
for (int ay = 0; ay < gridLines.getHeight(); ay++)
{
for (int ax = 0; ax < gridLines.getWidth(); ax++)
{
System.Collections.ArrayList sampledPoints = System.Collections.ArrayList.Synchronized(new System.Collections.ArrayList(10)); //only for visualiz;
for (int y = 0; y < gridLines.getHeight(ax, ay); y++)
{
for (int x = 0; x < gridLines.getWidth(ax, ay); x++)
{
int x1 = gridLines.getXLine(ax, ay, x).getP1().X;
int y1 = gridLines.getXLine(ax, ay, x).getP1().Y;
int x2 = gridLines.getXLine(ax, ay, x).getP2().X;
int y2 = gridLines.getXLine(ax, ay, x).getP2().Y;
int x3 = gridLines.getYLine(ax, ay, y).getP1().X;
int y3 = gridLines.getYLine(ax, ay, y).getP1().Y;
int x4 = gridLines.getYLine(ax, ay, y).getP2().X;
int y4 = gridLines.getYLine(ax, ay, y).getP2().Y;
int e = (y2 - y1) * (x3 - x4) - (y4 - y3) * (x1 - x2);
int f = (x1 * y2 - x2 * y1) * (x3 - x4) - (x3 * y4 - x4 * y3) * (x1 - x2);
int g = (x3 * y4 - x4 * y3) * (y2 - y1) - (x1 * y2 - x2 * y1) * (y4 - y3);
sampledMatrix[gridLines.getX(ax, x)][gridLines.getY(ay, y)] = image[f / e][g / e];
if ((ay == gridLines.getHeight() - 1 && ax == gridLines.getWidth() - 1) && y == gridLines.getHeight(ax, ay) - 1 && x == gridLines.getWidth(ax, ay) - 1)
bottomRightPoint = new Point(f / e, g / e);
//calling canvas.drawPoint in loop can be very slow.
// use canvas.drawPoints if you need
//canvas.drawPoint(new Point(f / e,g / e), Color.RED);
}
}
}
}
if (bottomRightPoint.X > image.Length - 1 || bottomRightPoint.Y > image[0].Length - 1)
throw new System.IndexOutOfRangeException("Sampling grid pointed out of image");
canvas.drawPoint(bottomRightPoint, MessagingToolkit.QRCode.Codec.Util.Color_Fields.BLUE);
return sampledMatrix;
}
