public static DmtxVector2 operator -(DmtxVector2 v1, DmtxVector2 v2)
{
DmtxVector2 result = new DmtxVector2(v1.X, v1.Y);
result.X -= v2.X;
result.Y -= v2.Y;
return(result);
}
internal bool PointAlongRay2(DmtxRay2 ray, double t)
{
if (Math.Abs(1.0 - ray.V.Mag()) > DmtxConstants.DmtxAlmostZero)
{
throw new ArgumentException("PointAlongRay: The ray's V vector must be a unit vector");
}
DmtxVector2 tmp = new DmtxVector2(ray.V._x * t, ray.V._y * t);
this._x = ray.P._x + tmp._x;
this._y = ray.P._y + tmp._y;
return(true);
}
public static DmtxVector2 operator *(DmtxVector2 vector, DmtxMatrix3 matrix)
{
double w = Math.Abs(vector.X * matrix[0, 2] + vector.Y * matrix[1, 2] + matrix[2, 2]);
if (w <= DmtxConstants.DmtxAlmostZero)
{
throw new ArgumentException("Multiplication of vector and matrix resulted in invalid result");
}
DmtxVector2 result = new DmtxVector2((vector.X * matrix[0, 0] + vector.Y * matrix[1, 0] + matrix[2, 0]) / w,
(vector.X * matrix[0, 1] + vector.Y * matrix[1, 1] + matrix[2, 1]) / w);
return(result);
}
internal static double RightAngleTrueness(DmtxVector2 c0, DmtxVector2 c1, DmtxVector2 c2, double angle)
{
DmtxVector2 vA, vB;
vA = (c0 - c1);
vB = (c2 - c1);
vA.Norm();
vB.Norm();
DmtxMatrix3 m = DmtxMatrix3.Rotate(angle);
vB *= m;
return(vA.Dot(vB));
}
internal bool PointAlongRay2(DmtxRay2 ray, double t)
{
if (Math.Abs(1.0 - ray.V.Mag()) > DmtxConstants.DmtxAlmostZero)
{
throw new ArgumentException("PointAlongRay: The ray's V vector must be a unit vector");
}
DmtxVector2 tmp = new DmtxVector2(ray.V._x * t, ray.V._y * t);
this._x = ray.P._x + tmp._x;
this._y = ray.P._y + tmp._y;
return true;
}
internal double Dot(DmtxVector2 v2)
{
return Math.Sqrt(_x * v2._x + _y * v2._y);
}
internal double Cross(DmtxVector2 v2)
{
return (this._x * v2._y - this._y * v2._x);
}
public static DmtxVector2 operator -(DmtxVector2 v1, DmtxVector2 v2)
{
DmtxVector2 result = new DmtxVector2(v1.X, v1.Y);
result.X -= v2.X;
result.Y -= v2.Y;
return result;
}
internal DmtxMessage MatrixRegion(DmtxRegion reg, int fix)
{
DmtxMessage result = new DmtxMessage(reg.SizeIdx, DmtxFormat.Matrix);
DmtxVector2 topLeft = new DmtxVector2();
DmtxVector2 topRight = new DmtxVector2();
DmtxVector2 bottomLeft = new DmtxVector2();
DmtxVector2 bottomRight = new DmtxVector2();
DmtxPixelLoc pxTopLeft = new DmtxPixelLoc();
DmtxPixelLoc pxTopRight = new DmtxPixelLoc();
DmtxPixelLoc pxBottomLeft = new DmtxPixelLoc();
DmtxPixelLoc pxBottomRight = new DmtxPixelLoc();
if (!PopulateArrayFromMatrix(reg, result))
{
throw new Exception("Populating Array from matrix failed!");
}
/* maybe place remaining logic into new dmtxDecodePopulatedArray()
function so other people can pass in their own arrays */
ModulePlacementEcc200(result.Array, result.Code,
reg.SizeIdx, DmtxConstants.DmtxModuleOnRed | DmtxConstants.DmtxModuleOnGreen | DmtxConstants.DmtxModuleOnBlue);
if (DmtxCommon.DecodeCheckErrors(result.Code, 0, reg.SizeIdx, fix) != true)
{
return null;
}
topLeft.X = bottomLeft.X = topLeft.Y = topRight.Y = -0.1;
topRight.X = bottomRight.X = bottomLeft.Y = bottomRight.Y = 1.1;
topLeft *= reg.Fit2raw;
topRight *= reg.Fit2raw;
bottomLeft *= reg.Fit2raw;
bottomLeft *= reg.Fit2raw;
pxTopLeft.X = (int)(0.5 + topLeft.X);
pxTopLeft.Y = (int)(0.5 + topLeft.Y);
pxBottomLeft.X = (int)(0.5 + bottomLeft.X);
pxBottomLeft.Y = (int)(0.5 + bottomLeft.Y);
pxTopRight.X = (int)(0.5 + topRight.X);
pxTopRight.Y = (int)(0.5 + topRight.Y);
pxBottomRight.X = (int)(0.5 + bottomRight.X);
pxBottomRight.Y = (int)(0.5 + bottomRight.Y);
CacheFillQuad(pxTopLeft, pxTopRight, pxBottomRight, pxBottomLeft);
result.DecodeDataStream(reg.SizeIdx, null);
return result;
}
bool RegionUpdateXfrms(DmtxRegion reg)
{
double radians;
DmtxRay2 rLeft = new DmtxRay2();
DmtxRay2 rBottom = new DmtxRay2();
DmtxRay2 rTop = new DmtxRay2();
DmtxRay2 rRight = new DmtxRay2();
DmtxVector2 p00 = new DmtxVector2();
DmtxVector2 p10 = new DmtxVector2();
DmtxVector2 p11 = new DmtxVector2();
DmtxVector2 p01 = new DmtxVector2();
if (!(reg.LeftKnown != 0 && reg.BottomKnown != 0))
{
throw new ArgumentException("Error updating Xfrms!");
}
/* Build ray representing left edge */
rLeft.P.X = (double)reg.LeftLoc.X;
rLeft.P.Y = (double)reg.LeftLoc.Y;
radians = reg.LeftAngle * (Math.PI / DmtxConstants.DmtxHoughRes);
rLeft.V.X = Math.Cos(radians);
rLeft.V.Y = Math.Sin(radians);
rLeft.TMin = 0.0;
rLeft.TMax = rLeft.V.Norm();
/* Build ray representing bottom edge */
rBottom.P.X = (double)reg.BottomLoc.X;
rBottom.P.Y = (double)reg.BottomLoc.Y;
radians = reg.BottomAngle * (Math.PI / DmtxConstants.DmtxHoughRes);
rBottom.V.X = Math.Cos(radians);
rBottom.V.Y = Math.Sin(radians);
rBottom.TMin = 0.0;
rBottom.TMax = rBottom.V.Norm();
/* Build ray representing top edge */
if (reg.TopKnown != 0)
{
rTop.P.X = (double)reg.TopLoc.X;
rTop.P.Y = (double)reg.TopLoc.Y;
radians = reg.TopAngle * (Math.PI / DmtxConstants.DmtxHoughRes);
rTop.V.X = Math.Cos(radians);
rTop.V.Y = Math.Sin(radians);
rTop.TMin = 0.0;
rTop.TMax = rTop.V.Norm();
}
else
{
rTop.P.X = (double)reg.LocT.X;
rTop.P.Y = (double)reg.LocT.Y;
radians = reg.BottomAngle * (Math.PI / DmtxConstants.DmtxHoughRes);
rTop.V.X = Math.Cos(radians);
rTop.V.Y = Math.Sin(radians);
rTop.TMin = 0.0;
rTop.TMax = rBottom.TMax;
}
/* Build ray representing right edge */
if (reg.RightKnown != 0)
{
rRight.P.X = (double)reg.RightLoc.X;
rRight.P.Y = (double)reg.RightLoc.Y;
radians = reg.RightAngle * (Math.PI / DmtxConstants.DmtxHoughRes);
rRight.V.X = Math.Cos(radians);
rRight.V.Y = Math.Sin(radians);
rRight.TMin = 0.0;
rRight.TMax = rRight.V.Norm();
}
else
{
rRight.P.X = (double)reg.LocR.X;
rRight.P.Y = (double)reg.LocR.Y;
radians = reg.LeftAngle * (Math.PI / DmtxConstants.DmtxHoughRes);
rRight.V.X = Math.Cos(radians);
rRight.V.Y = Math.Sin(radians);
rRight.TMin = 0.0;
rRight.TMax = rLeft.TMax;
}
/* Calculate 4 corners, real or imagined */
if (!p00.Intersect(rLeft, rBottom))
return false;
if (!p10.Intersect(rBottom, rRight))
return false;
if (!p11.Intersect(rRight, rTop))
return false;
if (!p01.Intersect(rTop, rLeft))
return false;
if (!RegionUpdateCorners(reg, p00, p10, p11, p01))
return false;
return true;
}
bool RegionUpdateCorners(DmtxRegion reg, DmtxVector2 p00,
DmtxVector2 p10, DmtxVector2 p11, DmtxVector2 p01)
{
double xMax, yMax;
double tx, ty, phi, shx, scx, scy, skx, sky;
double dimOT, dimOR, dimTX, dimRX, ratio;
DmtxVector2 vOT, vOR, vTX, vRX, vTmp;
xMax = (double)(this.Width - 1);
yMax = (double)(this.Height - 1);
if (p00.X < 0.0 || p00.Y < 0.0 || p00.X > xMax || p00.Y > yMax ||
p01.X < 0.0 || p01.Y < 0.0 || p01.X > xMax || p01.Y > yMax ||
p10.X < 0.0 || p10.Y < 0.0 || p10.X > xMax || p10.Y > yMax)
return false;
vOT = p01 - p00;
vOR = p10 - p00;
vTX = p11 - p01;
vRX = p11 - p10;
dimOT = vOT.Mag(); /* XXX could use MagSquared() */
dimOR = vOR.Mag();
dimTX = vTX.Mag();
dimRX = vRX.Mag();
/* Verify that sides are reasonably long */
if (dimOT <= 8.0 || dimOR <= 8.0 || dimTX <= 8.0 || dimRX <= 8.0)
return false;
/* Verify that the 4 corners define a reasonably fat quadrilateral */
ratio = dimOT / dimRX;
if (ratio <= 0.5 || ratio >= 2.0)
return false;
ratio = dimOR / dimTX;
if (ratio <= 0.5 || ratio >= 2.0)
return false;
/* Verify this is not a bowtie shape */
if (vOR.Cross(vRX) <= 0.0 || vOT.Cross(vTX) >= 0.0)
return false;
if (DmtxCommon.RightAngleTrueness(p00, p10, p11, Math.PI / 2.0) <= this._squareDevn)
return false;
if (DmtxCommon.RightAngleTrueness(p10, p11, p01, Math.PI / 2.0) <= this._squareDevn)
return false;
/* Calculate values needed for transformations */
tx = -1 * p00.X;
ty = -1 * p00.Y;
DmtxMatrix3 mtxy = DmtxMatrix3.Translate(tx, ty);
phi = Math.Atan2(vOT.X, vOT.Y);
DmtxMatrix3 mphi = DmtxMatrix3.Rotate(phi);
DmtxMatrix3 m = mtxy * mphi;
vTmp = p10 * m;
shx = -vTmp.Y / vTmp.X;
DmtxMatrix3 mshx = DmtxMatrix3.Shear(0.0, shx);
m *= mshx;
scx = 1.0 / vTmp.X;
DmtxMatrix3 mscx = DmtxMatrix3.Scale(scx, 1.0);
m *= mscx;
vTmp = p11 * m;
scy = 1.0 / vTmp.Y;
DmtxMatrix3 mscy = DmtxMatrix3.Scale(1.0, scy);
m *= mscy;
vTmp = p11 * m;
skx = vTmp.X;
DmtxMatrix3 mskx = DmtxMatrix3.LineSkewSide(1.0, skx, 1.0);
m *= mskx;
vTmp = p01 * m;
sky = vTmp.Y;
DmtxMatrix3 msky = DmtxMatrix3.LineSkewTop(sky, 1.0, 1.0);
reg.Raw2fit = m * msky;
/* Create inverse matrix by reverse (avoid straight matrix inversion) */
msky = DmtxMatrix3.LineSkewTopInv(sky, 1.0, 1.0);
mskx = DmtxMatrix3.LineSkewSideInv(1.0, skx, 1.0);
m = msky * mskx;
DmtxMatrix3 mscxy = DmtxMatrix3.Scale(1.0 / scx, 1.0 / scy);
m *= mscxy;
mshx = DmtxMatrix3.Shear(0.0, -shx);
m *= mshx;
mphi = DmtxMatrix3.Rotate(-phi);
m *= mphi;
mtxy = DmtxMatrix3.Translate(-tx, -ty);
reg.Fit2raw = m * mtxy;
return true;
}
private int ReadModuleColor(DmtxRegion reg, int symbolRow, int symbolCol, DmtxSymbolSize sizeIdx, int colorPlane)
{
int i;
int symbolRows, symbolCols;
int color, colorTmp;
double[] sampleX = { 0.5, 0.4, 0.5, 0.6, 0.5 };
double[] sampleY = { 0.5, 0.5, 0.4, 0.5, 0.6 };
DmtxVector2 p = new DmtxVector2();
symbolRows = DmtxCommon.GetSymbolAttribute(DmtxSymAttribute.DmtxSymAttribSymbolRows, sizeIdx);
symbolCols = DmtxCommon.GetSymbolAttribute(DmtxSymAttribute.DmtxSymAttribSymbolCols, sizeIdx);
colorTmp = color = 0;
for (i = 0; i < 5; i++)
{
p.X = (1.0 / symbolCols) * (symbolCol + sampleX[i]);
p.Y = (1.0 / symbolRows) * (symbolRow + sampleY[i]);
p *= reg.Fit2raw;
GetPixelValue((int)(p.X + 0.5), (int)(p.Y + 0.5), colorPlane, ref colorTmp);
color += colorTmp;
}
return color / 5;
}
bool MatrixRegionAlignCalibEdge(DmtxRegion reg, DmtxEdge edgeLoc)
{
int streamDir;
int steps;
int avoidAngle;
DmtxSymbolSize symbolShape;
DmtxVector2 pTmp = new DmtxVector2();
DmtxPixelLoc loc0 = new DmtxPixelLoc();
DmtxPixelLoc loc1 = new DmtxPixelLoc();
DmtxPixelLoc locOrigin = new DmtxPixelLoc();
DmtxBresLine line;
DmtxFollow follow;
DmtxBestLine bestLine;
/* Determine pixel coordinates of origin */
pTmp.X = 0.0;
pTmp.Y = 0.0;
pTmp *= reg.Fit2raw;
locOrigin.X = (int)(pTmp.X + 0.5);
locOrigin.Y = (int)(pTmp.Y + 0.5);
if (this._sizeIdxExpected == DmtxSymbolSize.DmtxSymbolSquareAuto ||
(this._sizeIdxExpected >= DmtxSymbolSize.DmtxSymbol10x10 &&
this._sizeIdxExpected <= DmtxSymbolSize.DmtxSymbol144x144))
symbolShape = DmtxSymbolSize.DmtxSymbolSquareAuto;
else if (this._sizeIdxExpected == DmtxSymbolSize.DmtxSymbolRectAuto ||
(this._sizeIdxExpected >= DmtxSymbolSize.DmtxSymbol8x18 &&
this._sizeIdxExpected <= DmtxSymbolSize.DmtxSymbol16x48))
symbolShape = DmtxSymbolSize.DmtxSymbolRectAuto;
else
symbolShape = DmtxSymbolSize.DmtxSymbolShapeAuto;
/* Determine end locations of test line */
if (edgeLoc == DmtxEdge.DmtxEdgeTop)
{
streamDir = reg.Polarity * -1;
avoidAngle = reg.LeftLine.Angle;
follow = FollowSeekLoc(reg.LocT);
pTmp.X = 0.8;
pTmp.Y = (symbolShape == DmtxSymbolSize.DmtxSymbolRectAuto) ? 0.2 : 0.6;
}
else
{
streamDir = reg.Polarity;
avoidAngle = reg.BottomLine.Angle;
follow = FollowSeekLoc(reg.LocR);
pTmp.X = (symbolShape == DmtxSymbolSize.DmtxSymbolSquareAuto) ? 0.7 : 0.9;
pTmp.Y = 0.8;
}
pTmp *= reg.Fit2raw;
loc1.X = (int)(pTmp.X + 0.5);
loc1.Y = (int)(pTmp.Y + 0.5);
loc0 = follow.Loc;
line = new DmtxBresLine(loc0, loc1, locOrigin);
steps = TrailBlazeGapped(reg, line, streamDir);
bestLine = FindBestSolidLine2(loc0, steps, streamDir, avoidAngle);
if (bestLine.Mag < 5)
{
;
}
if (edgeLoc == DmtxEdge.DmtxEdgeTop)
{
reg.TopKnown = 1;
reg.TopAngle = bestLine.Angle;
reg.TopLoc = bestLine.LocBeg;
}
else
{
reg.RightKnown = 1;
reg.RightAngle = bestLine.Angle;
reg.RightLoc = bestLine.LocBeg;
}
return true;
}
private void PrintPattern(Color? foreColor, Color? backColor)
{
int i, j;
int symbolRow, symbolCol;
int pixelRow, pixelCol;
int moduleStatus;
int rowSize, height;
int[] rgb = new int[3];
double sxy, txy;
DmtxVector2 vIn, vOut;
txy = this._marginSize;
sxy = 1.0 / this._moduleSize;
DmtxMatrix3 m1 = DmtxMatrix3.Translate(-txy, -txy);
DmtxMatrix3 m2 = DmtxMatrix3.Scale(sxy, -sxy);
DmtxMatrix3 xfrm = m1 * m2;
m1 = DmtxMatrix3.Translate(txy, txy);
m2 = DmtxMatrix3.Scale(this._moduleSize, this._moduleSize);
DmtxMatrix3 rxfrm = m2 * m1;
rowSize = this._image.RowSizeBytes;
height = this._image.Height;
for (int pxlIndex = 0; pxlIndex < rowSize * height; pxlIndex++)
{
this._image.Pxl[pxlIndex] = 0xff;
}
for (symbolRow = 0; symbolRow < this._region.SymbolRows; symbolRow++)
{
for (symbolCol = 0; symbolCol < this._region.SymbolCols; symbolCol++)
{
vIn = new DmtxVector2(symbolCol, symbolRow);
vOut = vIn * rxfrm;
pixelCol = (int)(vOut.X);
pixelRow = (int)(vOut.Y);
moduleStatus = this._message.SymbolModuleStatus(this._region.SizeIdx, symbolRow, symbolCol);
if (moduleStatus != 7)
{
bool rgb0 = (moduleStatus & DmtxConstants.DmtxModuleOnRed) == 0;
bool rgb1 = (moduleStatus & DmtxConstants.DmtxModuleOnGreen) == 0;
bool rgb2 = (moduleStatus & DmtxConstants.DmtxModuleOnBlue) == 0;
}
for (i = pixelRow; i < pixelRow + this._moduleSize; i++)
{
for (j = pixelCol; j < pixelCol + this._moduleSize; j++)
{
if (foreColor.HasValue && backColor.HasValue)
{
rgb[0] = ((moduleStatus & DmtxConstants.DmtxModuleOnRed) != 0x00) ? foreColor.Value.B : backColor.Value.B;
rgb[1] = ((moduleStatus & DmtxConstants.DmtxModuleOnGreen) != 0x00) ? foreColor.Value.G : backColor.Value.G;
rgb[2] = ((moduleStatus & DmtxConstants.DmtxModuleOnBlue) != 0x00) ? foreColor.Value.R : backColor.Value.R;
}
else
{
rgb[0] = ((moduleStatus & DmtxConstants.DmtxModuleOnBlue) != 0x00) ? 0 : 255;
rgb[1] = ((moduleStatus & DmtxConstants.DmtxModuleOnGreen) != 0x00) ? 0 : 255;
rgb[2] = ((moduleStatus & DmtxConstants.DmtxModuleOnRed) != 0x00) ? 0 : 255;
}
/* dmtxImageSetRgb(enc->image, j, i, rgb); */
this._image.SetPixelValue(j, i, 0, (byte)rgb[0]);
this._image.SetPixelValue(j, i, 1, (byte)rgb[1]);
this._image.SetPixelValue(j, i, 2, (byte)rgb[2]);
}
}
}
}
}
internal double Cross(DmtxVector2 v2)
{
return(this._x * v2._y - this._y * v2._x);
}
internal double Dot(DmtxVector2 v2)
{
return(Math.Sqrt(_x * v2._x + _y * v2._y));
}