[3] | 1 | #include <iostream> |
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[103] | 2 | #include <sstream> |
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[3] | 3 | #include <cpgplot.h> |
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| 4 | #include <math.h> |
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| 5 | #include <wcs.h> |
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| 6 | #include <Cubes/cubes.hh> |
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| 7 | #include <Utils/utils.hh> |
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| 8 | |
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[103] | 9 | void Cube::drawMomentCutout(Detection &object) |
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[3] | 10 | { |
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[83] | 11 | /** |
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[103] | 12 | * Cube::drawMomentCutout(object) |
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[83] | 13 | * |
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| 14 | * A routine to draw the 0th moment for the given detection |
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| 15 | * using the flux given by the pixel array in the Cube. |
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| 16 | * The 0th moment is constructed by adding the flux of each |
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| 17 | * pixel within the full extent of the object (this may be more |
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| 18 | * pixels than were actually detected in the object) |
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| 19 | * A tick mark is also drawn to indicate angular scale (but only |
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| 20 | * if the WCS for the Cube is valid). |
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| 21 | */ |
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| 22 | |
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[117] | 23 | bool flagBlankPix = this->par.getFlagBlankPix(); |
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[135] | 24 | int blankKW; |
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| 25 | float bscaleKW,bzeroKW,blankVal; |
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| 26 | if(!flagBlankPix){ |
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| 27 | this->par.setFlagBlankPix(true); |
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| 28 | blankKW =this->par.getBlankKeyword(); |
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| 29 | bscaleKW=this->par.getBscaleKeyword(); |
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| 30 | bzeroKW =this->par.getBzeroKeyword(); |
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| 31 | this->par.setBlankKeyword(1); |
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| 32 | this->par.setBzeroKeyword(0.); |
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| 33 | this->par.setBscaleKeyword(-100.1234); |
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| 34 | blankVal = this->par.getBscaleKeyword(); |
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| 35 | } |
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| 36 | else blankVal = this->par.getBlankPixVal(); |
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[117] | 37 | |
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[3] | 38 | float x1,x2,y1,y2; |
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| 39 | cpgqwin(&x1,&x2,&y1,&y2); |
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| 40 | |
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| 41 | long size = (object.getXmax()-object.getXmin()+1); |
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| 42 | if(size<(object.getYmax()-object.getYmin()+1)) |
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| 43 | size = object.getYmax()-object.getYmin()+1; |
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| 44 | size += 20; |
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| 45 | |
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| 46 | |
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| 47 | long xmin = (object.getXmax()+object.getXmin())/2 - size/2 + 1; |
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| 48 | long xmax = (object.getXmax()+object.getXmin())/2 + size/2; |
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| 49 | long ymin = (object.getYmax()+object.getYmin())/2 - size/2 + 1; |
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| 50 | long ymax = (object.getYmax()+object.getYmin())/2 + size/2; |
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| 51 | long zmin = object.getZmin(); |
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| 52 | long zmax = object.getZmax(); |
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| 53 | |
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| 54 | float *image = new float[size*size]; |
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[137] | 55 | for(int i=0;i<size*size;i++) image[i]=0.; |
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[3] | 56 | |
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[137] | 57 | bool *isGood = new bool[size*size]; |
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| 58 | for(int z=zmin; z<=zmax; z++){ |
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| 59 | for(int x=xmin; x<=xmax; x++){ |
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| 60 | for(int y=ymin; y<=ymax; y++){ |
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| 61 | isGood[(y-ymin) * size + (x-xmin)] = !this->isBlank(x,y,z); |
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| 62 | } |
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| 63 | } |
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| 64 | } |
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| 65 | |
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[3] | 66 | int imPos,cubePos; |
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| 67 | for(int z=zmin; z<=zmax; z++){ |
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| 68 | for(int x=xmin; x<=xmax; x++){ |
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| 69 | for(int y=ymin; y<=ymax; y++){ |
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[137] | 70 | |
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[3] | 71 | imPos = (y-ymin) * size + (x-xmin); |
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[103] | 72 | cubePos = (z)*this->axisDim[0]*this->axisDim[1]+(y)*this->axisDim[0]+(x); |
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[137] | 73 | |
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| 74 | if( (x<0)||(x>=this->axisDim[0]) // if outside the boundaries |
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| 75 | || (y<0)||(y>=this->axisDim[1]) // if outside the boundaries |
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| 76 | || !isGood[imPos] ) // if not blank |
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[3] | 77 | image[imPos] = blankVal; |
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[137] | 78 | else |
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| 79 | image[imPos] += this->array[cubePos]; |
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| 80 | |
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[3] | 81 | } |
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| 82 | } |
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| 83 | } |
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| 84 | |
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| 85 | for(int i=0;i<size*size;i++){ |
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[137] | 86 | // if there is some signal on this pixel, normalise by the velocity width |
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| 87 | if(isGood[i]) image[i] /= float(zmax-zmin+1); |
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[3] | 88 | } |
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| 89 | |
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[137] | 90 | // now work out the greyscale display limits, |
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| 91 | // excluding blank pixels where necessary. |
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[3] | 92 | float z1,z2,median,madfm; |
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| 93 | int ct=0; |
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[137] | 94 | while(!isGood[ct]) ct++; // move to first non-blank pixel |
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[3] | 95 | z1 = z2 = image[ct]; |
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| 96 | for(int i=1;i<size*size;i++){ |
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[137] | 97 | if(isGood[i]){ |
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[3] | 98 | if(image[i]<z1) z1=image[i]; |
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| 99 | if(image[i]>z2) z2=image[i]; |
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| 100 | } |
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| 101 | } |
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| 102 | |
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| 103 | float tr[6] = {xmin-1,1.,0.,ymin-1,0.,1.}; |
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| 104 | |
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| 105 | cpgswin(xmin-0.5,xmax-0.5,ymin-0.5,ymax-0.5); |
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| 106 | cpggray(image, size, size, 1, size, 1, size, z1, z2, tr); |
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| 107 | |
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| 108 | delete [] image; |
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| 109 | |
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[18] | 110 | int ci; |
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| 111 | cpgqci(&ci); |
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[137] | 112 | |
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| 113 | // Draw the border of the BLANK region, if there is one... |
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| 114 | cpgsci(6); |
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| 115 | drawBlankEdges(image, size, size, par); |
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| 116 | |
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| 117 | // Draw the borders around the object |
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[18] | 118 | cpgsci(4); |
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[3] | 119 | cpgsfs(2); |
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[103] | 120 | if(this->par.drawBorders()) |
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[3] | 121 | object.drawBorders(xmin,ymin); |
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| 122 | else |
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| 123 | cpgrect(object.getXmin()-xmin+0.5,object.getXmax()-xmin+1.5, |
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| 124 | object.getYmin()-ymin+0.5,object.getYmax()-ymin+1.5); |
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| 125 | /* |
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| 126 | To get the borders localised correctly, we need to subtract (xmin-1) from the |
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| 127 | X values. We then subtract 0.5 for the left hand border (to place it on the |
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| 128 | pixel border), and add 0.5 for the right hand border. Similarly for y. |
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| 129 | */ |
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[18] | 130 | cpgsci(ci); |
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[3] | 131 | |
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[103] | 132 | if(this->head.isWCS()){ |
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[83] | 133 | // Now draw a tick mark to indicate size -- 15 arcmin in length |
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[103] | 134 | this->drawScale(xmin+2.,ymin+2.,object.getZcentre(),0.25); |
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[49] | 135 | } |
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[3] | 136 | |
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| 137 | cpgsci(1); |
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| 138 | cpgswin(x1,x2,y1,y2); |
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| 139 | |
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[135] | 140 | if(!flagBlankPix){ |
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| 141 | this->par.setFlagBlankPix(flagBlankPix); |
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| 142 | this->par.setBlankKeyword(blankKW); |
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| 143 | this->par.setBzeroKeyword(bzeroKW); |
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| 144 | this->par.setBscaleKeyword(bscaleKW); |
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| 145 | } |
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[117] | 146 | |
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[3] | 147 | } |
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| 148 | |
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[83] | 149 | void Cube::drawScale(float xstart, float ystart, float channel, float scaleLength) |
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| 150 | { |
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| 151 | /** |
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| 152 | * Cube::drawScale(xstart, ystart, channel, scaleLength) |
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| 153 | * |
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| 154 | * A routine to draw a scale bar on a (pre-existing) PGPlot image. |
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| 155 | * It uses an iterative technique to move from the given start position |
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| 156 | * (xstart,ystart) along the positive x-direction so that the length is |
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| 157 | * within 1% of the requested value scaleLength. |
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| 158 | * The parameter "channel" is required for the wcslib calculations, as the |
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| 159 | * positions could theoretically change with channel. |
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| 160 | */ |
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| 161 | |
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| 162 | double *pix1 = new double[3]; |
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| 163 | double *pix2 = new double[3]; |
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| 164 | double *world1 = new double[3]; |
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| 165 | double *world2 = new double[3]; |
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| 166 | pix1[0] = pix2[0] = xstart + this->par.getXOffset(); |
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| 167 | pix1[1] = pix2[1] = ystart + this->par.getYOffset(); |
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| 168 | pix1[2] = pix2[2] = channel; |
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[103] | 169 | this->head.pixToWCS(pix1,world1); |
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[83] | 170 | |
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| 171 | double angSep=0.; |
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| 172 | bool keepGoing=false; |
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| 173 | float step = 1.; |
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| 174 | do{ |
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| 175 | if(angSep>scaleLength){ |
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| 176 | pix2[0] -= step; |
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| 177 | step /= 2.; |
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| 178 | } |
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| 179 | pix2[0] += step; |
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[103] | 180 | this->head.pixToWCS(pix2,world2); |
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[83] | 181 | angSep = angularSeparation(world1[0],world1[1],world2[0],world2[1]); |
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| 182 | }while((fabs(angSep-scaleLength)/scaleLength)>0.01); // look for 1% change |
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| 183 | |
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| 184 | float tickpt1 = pix1[0] - this->par.getXOffset(); |
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| 185 | float tickpt2 = pix2[0] - this->par.getXOffset(); |
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| 186 | float tickpt3 = ystart; |
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| 187 | int colour; |
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| 188 | cpgqci(&colour); |
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| 189 | cpgsci(2); |
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| 190 | int thick; |
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| 191 | cpgqlw(&thick); |
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| 192 | cpgslw(3); |
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| 193 | cpgerrx(1,&tickpt1,&tickpt2,&tickpt3,2.); |
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| 194 | cpgslw(thick); |
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[103] | 195 | |
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| 196 | std::stringstream text; |
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| 197 | text << scaleLength*60 << "'"; |
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| 198 | float size,xch,ych; |
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| 199 | cpgqch(&size); |
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| 200 | cpgsch(0.4); |
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| 201 | cpgqcs(4,&xch,&ych); // get the character size in world coords |
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| 202 | cpgptxt((tickpt1+tickpt2)/2., ystart+ych, 0, 0.5, text.str().c_str()); |
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| 203 | cpgsch(size); |
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[83] | 204 | cpgsci(colour); |
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| 205 | |
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| 206 | delete [] pix1,pix2; |
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| 207 | delete [] world1,world2; |
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| 208 | |
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| 209 | |
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| 210 | } |
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| 211 | |
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| 212 | |
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[3] | 213 | void Detection::drawBorders(int xoffset, int yoffset) |
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| 214 | { |
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| 215 | |
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| 216 | float x1,x2,y1,y2; |
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| 217 | cpgqwin(&x1,&x2,&y1,&y2); |
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| 218 | int xsize = int(x2 - x1) + 1; |
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| 219 | int ysize = int(y2 - y1) + 1; |
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| 220 | |
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| 221 | bool *isObj = new bool[xsize*ysize]; |
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| 222 | for(int i=0;i<xsize*ysize;i++) isObj[i]=false; |
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| 223 | for(int i=0;i<this->pix.size();i++) |
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| 224 | isObj[ (this->pix[i].getY()-yoffset)*xsize + (this->pix[i].getX()-xoffset) ] = true; |
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| 225 | |
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| 226 | |
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| 227 | cpgswin(0,xsize-1,0,ysize-1); |
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| 228 | for(int x=this->xmin; x<=this->xmax; x++){ |
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| 229 | // for each column... |
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| 230 | for(int y=1;y<ysize;y++){ |
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| 231 | int current = y*xsize + (x-xoffset); |
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| 232 | int previous = (y-1)*xsize + (x-xoffset); |
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| 233 | if((isObj[current]&&!isObj[previous])||(!isObj[current]&&isObj[previous])){ |
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| 234 | cpgmove(x-xoffset+0, y+0); |
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| 235 | cpgdraw(x-xoffset+1, y+0); |
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| 236 | } |
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| 237 | } |
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| 238 | } |
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| 239 | for(int y=this->ymin; y<=this->ymax; y++){ |
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| 240 | // now for each row... |
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| 241 | for(int x=1;x<xsize;x++){ |
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| 242 | int current = (y-yoffset)*xsize + x; |
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| 243 | int previous = (y-yoffset)*xsize + x - 1; |
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| 244 | if((isObj[current]&&!isObj[previous])||(!isObj[current]&&isObj[previous])){ |
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| 245 | cpgmove(x+0, y-yoffset+0); |
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| 246 | cpgdraw(x+0, y-yoffset+1); |
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| 247 | } |
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| 248 | } |
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| 249 | } |
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| 250 | cpgswin(x1,x2,y1,y2); |
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| 251 | |
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| 252 | delete [] isObj; |
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| 253 | |
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| 254 | } |
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