/// <summary> Generic Sampling grid method</summary>
internal virtual SamplingGrid getSamplingGrid(FinderPattern finderPattern, AlignmentPattern alignmentPattern)
{
Point[][] centers = alignmentPattern.getCenter();
int version = finderPattern.Version;
int sqrtCenters = (version / 7) + 2;
centers[0][0] = finderPattern.getCenter(FinderPattern.UL);
centers[sqrtCenters - 1][0] = finderPattern.getCenter(FinderPattern.UR);
centers[0][sqrtCenters - 1] = finderPattern.getCenter(FinderPattern.DL);
//int sqrtNumModules = finderPattern.getSqrtNumModules(); /// The number of modules per one side is obtained
int sqrtNumArea = sqrtCenters - 1;
SamplingGrid samplingGrid = new SamplingGrid(sqrtNumArea);
Line baseLineX, baseLineY, gridLineX, gridLineY;
//int logicalDistance = alignmentPattern.getLogicalDistance();
Axis axis = new Axis(finderPattern.getAngle(), finderPattern.getModuleSize());
ModulePitch modulePitch;
// for each area :
for (int ay = 0; ay < sqrtNumArea; ay++)
{
for (int ax = 0; ax < sqrtNumArea; ax++)
{
modulePitch = new ModulePitch(this); /// Housing to order
baseLineX = new Line();
baseLineY = new Line();
axis.ModulePitch = finderPattern.getModuleSize();
Point[][] logicalCenters = AlignmentPattern.getLogicalCenter(finderPattern);
Point upperLeftPoint = centers[ax][ay];
Point upperRightPoint = centers[ax + 1][ay];
Point lowerLeftPoint = centers[ax][ay + 1];
Point lowerRightPoint = centers[ax + 1][ay + 1];
Point logicalUpperLeftPoint = logicalCenters[ax][ay];
Point logicalUpperRightPoint = logicalCenters[ax + 1][ay];
Point logicalLowerLeftPoint = logicalCenters[ax][ay + 1];
Point logicalLowerRightPoint = logicalCenters[ax + 1][ay + 1];
if (ax == 0 && ay == 0) // left upper corner
{
if (sqrtNumArea == 1)
{
upperLeftPoint = axis.translate(upperLeftPoint, -3, -3);
upperRightPoint = axis.translate(upperRightPoint, 3, -3);
lowerLeftPoint = axis.translate(lowerLeftPoint, -3, 3);
lowerRightPoint = axis.translate(lowerRightPoint, 6, 6);
logicalUpperLeftPoint.translate(-6, -6);
logicalUpperRightPoint.translate(3, -3);
logicalLowerLeftPoint.translate(-3, 3);
logicalLowerRightPoint.translate(6, 6);
}
else
{
upperLeftPoint = axis.translate(upperLeftPoint, -3, -3);
upperRightPoint = axis.translate(upperRightPoint, 0, -6);
lowerLeftPoint = axis.translate(lowerLeftPoint, -6, 0);
logicalUpperLeftPoint.translate(-6, -6);
logicalUpperRightPoint.translate(0, -6);
logicalLowerLeftPoint.translate(-6, 0);
}
}
else if (ax == 0 && ay == sqrtNumArea - 1) // left bottom corner
{
upperLeftPoint = axis.translate(upperLeftPoint, -6, 0);
lowerLeftPoint = axis.translate(lowerLeftPoint, -3, 3);
lowerRightPoint = axis.translate(lowerRightPoint, 0, 6);
logicalUpperLeftPoint.translate(-6, 0);
logicalLowerLeftPoint.translate(-6, 6);
logicalLowerRightPoint.translate(0, 6);
}
else if (ax == sqrtNumArea - 1 && ay == 0) // right upper corner
{
upperLeftPoint = axis.translate(upperLeftPoint, 0, -6);
upperRightPoint = axis.translate(upperRightPoint, 3, -3);
lowerRightPoint = axis.translate(lowerRightPoint, 6, 0);
logicalUpperLeftPoint.translate(0, -6);
logicalUpperRightPoint.translate(6, -6);
logicalLowerRightPoint.translate(6, 0);
}
else if (ax == sqrtNumArea - 1 && ay == sqrtNumArea - 1) // right bottom corner
{
lowerLeftPoint = axis.translate(lowerLeftPoint, 0, 6);
upperRightPoint = axis.translate(upperRightPoint, 6, 0);
lowerRightPoint = axis.translate(lowerRightPoint, 6, 6);
logicalLowerLeftPoint.translate(0, 6);
logicalUpperRightPoint.translate(6, 0);
logicalLowerRightPoint.translate(6, 6);
}
else if (ax == 0) // left side
{
upperLeftPoint = axis.translate(upperLeftPoint, -6, 0);
lowerLeftPoint = axis.translate(lowerLeftPoint, -6, 0);
logicalUpperLeftPoint.translate(-6, 0);
logicalLowerLeftPoint.translate(-6, 0);
}
else if (ax == sqrtNumArea - 1) // right
{
upperRightPoint = axis.translate(upperRightPoint, 6, 0);
lowerRightPoint = axis.translate(lowerRightPoint, 6, 0);
logicalUpperRightPoint.translate(6, 0);
logicalLowerRightPoint.translate(6, 0);
}
else if (ay == 0) // top
{
upperLeftPoint = axis.translate(upperLeftPoint, 0, -6);
upperRightPoint = axis.translate(upperRightPoint, 0, -6);
logicalUpperLeftPoint.translate(0, -6);
logicalUpperRightPoint.translate(0, -6);
}
else if (ay == sqrtNumArea - 1) // bottom
{
lowerLeftPoint = axis.translate(lowerLeftPoint, 0, 6);
lowerRightPoint = axis.translate(lowerRightPoint, 0, 6);
logicalLowerLeftPoint.translate(0, 6);
logicalLowerRightPoint.translate(0, 6);
}
if (ax == 0)
{
logicalUpperRightPoint.translate(1, 0);
logicalLowerRightPoint.translate(1, 0);
}
else
{
logicalUpperLeftPoint.translate(-1, 0);
logicalLowerLeftPoint.translate(-1, 0);
}
if (ay == 0)
{
logicalLowerLeftPoint.translate(0, 1);
logicalLowerRightPoint.translate(0, 1);
}
else
{
logicalUpperLeftPoint.translate(0, -1);
logicalUpperRightPoint.translate(0, -1);
}
int logicalWidth = logicalUpperRightPoint.X - logicalUpperLeftPoint.X;
int logicalHeight = logicalLowerLeftPoint.Y - logicalUpperLeftPoint.Y;
if (version < 7)
{
logicalWidth += 3;
logicalHeight += 3;
}
modulePitch.top = getAreaModulePitch(upperLeftPoint, upperRightPoint, logicalWidth - 1);
modulePitch.left = getAreaModulePitch(upperLeftPoint, lowerLeftPoint, logicalHeight - 1);
modulePitch.bottom = getAreaModulePitch(lowerLeftPoint, lowerRightPoint, logicalWidth - 1);
modulePitch.right = getAreaModulePitch(upperRightPoint, lowerRightPoint, logicalHeight - 1);
baseLineX.setP1(upperLeftPoint);
baseLineY.setP1(upperLeftPoint);
baseLineX.setP2(lowerLeftPoint);
baseLineY.setP2(upperRightPoint);
samplingGrid.initGrid(ax, ay, logicalWidth, logicalHeight);
for (int i = 0; i < logicalWidth; i++)
{
gridLineX = new Line(baseLineX.getP1(), baseLineX.getP2());
axis.Origin = gridLineX.getP1();
axis.ModulePitch = modulePitch.top;
gridLineX.setP1(axis.translate(i, 0));
axis.Origin = gridLineX.getP2();
axis.ModulePitch = modulePitch.bottom;
gridLineX.setP2(axis.translate(i, 0));
samplingGrid.setXLine(ax, ay, i, gridLineX);
}
for (int i = 0; i < logicalHeight; i++)
{
gridLineY = new Line(baseLineY.getP1(), baseLineY.getP2());
axis.Origin = gridLineY.getP1();
axis.ModulePitch = modulePitch.left;
gridLineY.setP1(axis.translate(0, i));
axis.Origin = gridLineY.getP2();
axis.ModulePitch = modulePitch.right;
gridLineY.setP2(axis.translate(0, i));
samplingGrid.setYLine(ax, ay, i, gridLineY);
}
}
}
return(samplingGrid);
}
internal static Point[][] getCenter(bool[][] image, FinderPattern finderPattern, Point[][] logicalCenters)
{
int moduleSize = finderPattern.getModuleSize();
Axis axis = new Axis(finderPattern.getAngle(), moduleSize);
int sqrtCenters = logicalCenters.Length;
Point[][] centers = new Point[sqrtCenters][];
for (int i = 0; i < sqrtCenters; i++)
{
centers[i] = new Point[sqrtCenters];
}
axis.Origin = finderPattern.getCenter(FinderPattern.UL);
centers[0][0] = axis.translate(3, 3);
canvas.drawCross(centers[0][0], Color_Fields.BLUE);
axis.Origin = finderPattern.getCenter(FinderPattern.UR);
centers[sqrtCenters - 1][0] = axis.translate(-3, 3);
canvas.drawCross(centers[sqrtCenters - 1][0], Color_Fields.BLUE);
axis.Origin = finderPattern.getCenter(FinderPattern.DL);
centers[0][sqrtCenters - 1] = axis.translate(3, -3);
canvas.drawCross(centers[0][sqrtCenters - 1], Color_Fields.BLUE);
Point tmpPoint = centers[0][0];
for (int y = 0; y < sqrtCenters; y++)
{
for (int x = 0; x < sqrtCenters; x++)
{
if ((x == 0 && y == 0) || (x == 0 && y == sqrtCenters - 1) || (x == sqrtCenters - 1 && y == 0))
{
continue;
}
Point target = null;
if (y == 0)
{
if (x > 0 && x < sqrtCenters - 1)
{
target = axis.translate(centers[x - 1][y], logicalCenters[x][y].X - logicalCenters[x - 1][y].X, 0);
}
centers[x][y] = new Point(target.X, target.Y);
canvas.drawCross(centers[x][y], Color_Fields.RED);
}
else if (x == 0)
{
if (y > 0 && y < sqrtCenters - 1)
{
target = axis.translate(centers[x][y - 1], 0, logicalCenters[x][y].Y - logicalCenters[x][y - 1].Y);
}
centers[x][y] = new Point(target.X, target.Y);
canvas.drawCross(centers[x][y], Color_Fields.RED);
}
else
{
Point t1 = axis.translate(centers[x - 1][y], logicalCenters[x][y].X - logicalCenters[x - 1][y].X, 0);
Point t2 = axis.translate(centers[x][y - 1], 0, logicalCenters[x][y].Y - logicalCenters[x][y - 1].Y);
centers[x][y] = new Point((t1.X + t2.X) / 2, (t1.Y + t2.Y) / 2 + 1);
}
if (finderPattern.Version > 1)
{
Point precisionCenter = getPrecisionCenter(image, centers[x][y]);
if (centers[x][y].distanceOf(precisionCenter) < 6)
{
canvas.drawCross(centers[x][y], Color_Fields.RED);
int dx = precisionCenter.X - centers[x][y].X;
int dy = precisionCenter.Y - centers[x][y].Y;
canvas.println("Adjust AP(" + x + "," + y + ") to d(" + dx + "," + dy + ")");
centers[x][y] = precisionCenter;
}
}
canvas.drawCross(centers[x][y], Color_Fields.BLUE);
canvas.drawLine(new Line(tmpPoint, centers[x][y]), Color_Fields.LIGHTBLUE);
tmpPoint = centers[x][y];
}
}
return(centers);
}
public virtual QRCodeSymbol getQRCodeSymbol(int[][] image)
{
int longSide = (image.Length < image[0].Length)?image[0].Length:image.Length;
DECIMAL_POINT = 23 - QRCodeUtility.sqrt(longSide / 256);
bitmap = filterImage(image);
canvas.println("Drawing matrix.");
canvas.drawMatrix(bitmap);
canvas.println("Scanning Finder Pattern.");
FinderPattern finderPattern = null;
try
{
finderPattern = FinderPattern.findFinderPattern(bitmap);
}
catch (FinderPatternNotFoundException e)
{
canvas.println("Not found, now retrying...");
bitmap = applyCrossMaskingMedianFilter(bitmap, 5);
canvas.drawMatrix(bitmap);
for (int i = 0; i < 1000000000; i++)
{
;
}
try
{
finderPattern = FinderPattern.findFinderPattern(bitmap);
}
catch (FinderPatternNotFoundException e2)
{
throw new SymbolNotFoundException(e2.Message);
}
catch (VersionInformationException e2)
{
throw new SymbolNotFoundException(e2.Message);
}
}
catch (VersionInformationException e)
{
throw new SymbolNotFoundException(e.Message);
}
canvas.println("FinderPattern at");
String finderPatternCoordinates = finderPattern.getCenter(FinderPattern.UL).ToString() + finderPattern.getCenter(FinderPattern.UR).ToString() + finderPattern.getCenter(FinderPattern.DL).ToString();
canvas.println(finderPatternCoordinates);
int[] sincos = finderPattern.getAngle();
canvas.println("Angle*4098: Sin " + System.Convert.ToString(sincos[0]) + " " + "Cos " + System.Convert.ToString(sincos[1]));
int version = finderPattern.Version;
canvas.println("Version: " + System.Convert.ToString(version));
if (version < 1 || version > 40)
{
throw new InvalidVersionException("Invalid version: " + version);
}
AlignmentPattern alignmentPattern = null;
try
{
alignmentPattern = AlignmentPattern.findAlignmentPattern(bitmap, finderPattern);
}
catch (AlignmentPatternNotFoundException e)
{
throw new SymbolNotFoundException(e.Message);
}
int matrixLength = alignmentPattern.getCenter().Length;
canvas.println("AlignmentPatterns at");
for (int y = 0; y < matrixLength; y++)
{
String alignmentPatternCoordinates = "";
for (int x = 0; x < matrixLength; x++)
{
alignmentPatternCoordinates += alignmentPattern.getCenter()[x][y].ToString();
}
canvas.println(alignmentPatternCoordinates);
}
//for(int i = 0; i < 500000; i++) Console.out.println("");
canvas.println("Creating sampling grid.");
//[TODO] need all-purpose method
//samplingGrid = getSamplingGrid2_6(finderPattern, alignmentPattern);
samplingGrid = getSamplingGrid(finderPattern, alignmentPattern);
canvas.println("Reading grid.");
bool[][] qRCodeMatrix = null;
try
{
qRCodeMatrix = getQRCodeMatrix(bitmap, samplingGrid);
}
catch (System.IndexOutOfRangeException e)
{
throw new SymbolNotFoundException("Sampling grid exceeded image boundary");
}
//canvas.drawMatrix(qRCodeMatrix);
return(new QRCodeSymbol(qRCodeMatrix));
}