[3] | 1 | #include <iostream> |
---|
[103] | 2 | #include <sstream> |
---|
[3] | 3 | #include <cpgplot.h> |
---|
| 4 | #include <math.h> |
---|
| 5 | #include <wcs.h> |
---|
[142] | 6 | #include <duchamp.hh> |
---|
| 7 | #include <param.hh> |
---|
[3] | 8 | #include <Cubes/cubes.hh> |
---|
| 9 | #include <Utils/utils.hh> |
---|
[146] | 10 | #include <Utils/mycpgplot.hh> |
---|
[3] | 11 | |
---|
[142] | 12 | const int MIN_WIDTH=20; |
---|
[146] | 13 | using namespace mycpgplot; |
---|
[142] | 14 | |
---|
[103] | 15 | void Cube::drawMomentCutout(Detection &object) |
---|
[3] | 16 | { |
---|
[83] | 17 | /** |
---|
[103] | 18 | * Cube::drawMomentCutout(object) |
---|
[83] | 19 | * |
---|
| 20 | * A routine to draw the 0th moment for the given detection |
---|
| 21 | * using the flux given by the pixel array in the Cube. |
---|
| 22 | * The 0th moment is constructed by adding the flux of each |
---|
| 23 | * pixel within the full extent of the object (this may be more |
---|
| 24 | * pixels than were actually detected in the object) |
---|
| 25 | * A tick mark is also drawn to indicate angular scale (but only |
---|
| 26 | * if the WCS for the Cube is valid). |
---|
| 27 | */ |
---|
| 28 | |
---|
[142] | 29 | if(!cpgtest()) |
---|
| 30 | duchampError("drawMomentCutout","There is no PGPlot device open!\n"); |
---|
| 31 | else{ |
---|
[117] | 32 | |
---|
[142] | 33 | long size = (object.getXmax()-object.getXmin()+1); |
---|
| 34 | if(size<(object.getYmax()-object.getYmin()+1)) |
---|
| 35 | size = object.getYmax()-object.getYmin()+1; |
---|
| 36 | size += MIN_WIDTH; |
---|
[3] | 37 | |
---|
[142] | 38 | long xmin = (object.getXmax()+object.getXmin())/2 - size/2 + 1; |
---|
| 39 | long xmax = (object.getXmax()+object.getXmin())/2 + size/2; |
---|
| 40 | long ymin = (object.getYmax()+object.getYmin())/2 - size/2 + 1; |
---|
| 41 | long ymax = (object.getYmax()+object.getYmin())/2 + size/2; |
---|
| 42 | long zmin = object.getZmin(); |
---|
| 43 | long zmax = object.getZmax(); |
---|
[3] | 44 | |
---|
[142] | 45 | float *image = new float[size*size]; |
---|
| 46 | for(int i=0;i<size*size;i++) image[i]=0.; |
---|
[3] | 47 | |
---|
[142] | 48 | bool *isGood = new bool[size*size]; |
---|
[187] | 49 | for(int i=0;i<size*size;i++) isGood[i]=true; |
---|
[142] | 50 | for(int z=zmin; z<=zmax; z++){ |
---|
| 51 | for(int x=xmin; x<=xmax; x++){ |
---|
| 52 | for(int y=ymin; y<=ymax; y++){ |
---|
| 53 | isGood[(y-ymin) * size + (x-xmin)] = |
---|
| 54 | ((x>=0)&&(x<this->axisDim[0])) // if inside the boundaries |
---|
| 55 | && ((y>=0)&&(y<this->axisDim[1])) // if inside the boundaries |
---|
| 56 | && !this->isBlank(x,y,z); // if not blank |
---|
| 57 | } |
---|
[137] | 58 | } |
---|
| 59 | } |
---|
| 60 | |
---|
[142] | 61 | int imPos,cubePos; |
---|
| 62 | for(int z=zmin; z<=zmax; z++){ |
---|
| 63 | for(int x=xmin; x<=xmax; x++){ |
---|
| 64 | for(int y=ymin; y<=ymax; y++){ |
---|
[137] | 65 | |
---|
[142] | 66 | imPos = (y-ymin) * size + (x-xmin); |
---|
| 67 | cubePos = z*this->axisDim[0]*this->axisDim[1] + y*this->axisDim[0] + x; |
---|
[137] | 68 | |
---|
[142] | 69 | if(isGood[imPos]) image[imPos] += this->array[cubePos]; |
---|
[137] | 70 | |
---|
[142] | 71 | } |
---|
[3] | 72 | } |
---|
| 73 | } |
---|
| 74 | |
---|
[142] | 75 | for(int i=0;i<size*size;i++){ |
---|
| 76 | // if there is some signal on this pixel, normalise by the velocity width |
---|
| 77 | if(isGood[i]) image[i] /= float(zmax-zmin+1); |
---|
| 78 | } |
---|
[3] | 79 | |
---|
[142] | 80 | // now work out the greyscale display limits, |
---|
| 81 | // excluding blank pixels where necessary. |
---|
| 82 | float z1,z2,median,madfm; |
---|
| 83 | int ct=0; |
---|
| 84 | while(!isGood[ct]) ct++; // move to first non-blank pixel |
---|
| 85 | z1 = z2 = image[ct]; |
---|
| 86 | for(int i=1;i<size*size;i++){ |
---|
| 87 | if(isGood[i]){ |
---|
| 88 | if(image[i]<z1) z1=image[i]; |
---|
| 89 | if(image[i]>z2) z2=image[i]; |
---|
| 90 | } |
---|
[3] | 91 | } |
---|
| 92 | |
---|
[142] | 93 | // adjust the values of the blank and extra-image pixels |
---|
| 94 | for(int i=0;i<size*size;i++){ |
---|
| 95 | if(!isGood[i]){ |
---|
| 96 | if(this->par.getFlagBlankPix()) //blank pixels --> BLANK |
---|
| 97 | image[i] = this->par.getBlankPixVal(); |
---|
| 98 | else // lies outside image boundary --> black |
---|
| 99 | image[i] = z1 - 1.; |
---|
| 100 | } |
---|
| 101 | } |
---|
[3] | 102 | |
---|
[142] | 103 | float tr[6] = {xmin-1,1.,0.,ymin-1,0.,1.}; |
---|
[3] | 104 | |
---|
[142] | 105 | cpgswin(xmin-0.5,xmax-0.5,ymin-0.5,ymax-0.5); |
---|
| 106 | cpggray(image, size, size, 1, size, 1, size, z1, z2, tr); |
---|
[3] | 107 | |
---|
[142] | 108 | delete [] image; |
---|
[137] | 109 | |
---|
[142] | 110 | int ci; |
---|
| 111 | cpgqci(&ci); |
---|
[137] | 112 | |
---|
[142] | 113 | // Draw the border of the BLANK region, if there is one... |
---|
| 114 | this->plotBlankEdges(); |
---|
[3] | 115 | |
---|
[142] | 116 | // Draw the border of cube's pixels |
---|
| 117 | this->drawFieldEdge(); |
---|
[3] | 118 | |
---|
[142] | 119 | // Draw the borders around the object |
---|
[146] | 120 | cpgsci(BLUE); |
---|
| 121 | cpgsfs(OUTLINE); |
---|
[142] | 122 | if(this->par.drawBorders()) |
---|
| 123 | object.drawBorders(xmin,ymin); |
---|
| 124 | else |
---|
| 125 | cpgrect(object.getXmin()-xmin+0.5,object.getXmax()-xmin+1.5, |
---|
| 126 | object.getYmin()-ymin+0.5,object.getYmax()-ymin+1.5); |
---|
| 127 | /* |
---|
| 128 | To get the borders localised correctly, we need to subtract (xmin-1) |
---|
| 129 | from the X values. We then subtract 0.5 for the left hand border |
---|
| 130 | (to place it on the pixel border), and add 0.5 for the right hand |
---|
| 131 | border. Similarly for y. |
---|
| 132 | */ |
---|
[3] | 133 | |
---|
[142] | 134 | if(this->head.isWCS()){ |
---|
| 135 | // Now draw a tick mark to indicate size -- 15 arcmin in length |
---|
| 136 | // this->drawScale(xmin+2.,ymin+2.,object.getZcentre(),0.25); |
---|
| 137 | this->drawScale(xmin+2.,ymin+2.,object.getZcentre()); |
---|
| 138 | } |
---|
| 139 | |
---|
| 140 | cpgsci(ci); |
---|
| 141 | |
---|
[135] | 142 | } |
---|
[117] | 143 | |
---|
[3] | 144 | } |
---|
| 145 | |
---|
[142] | 146 | void Cube::drawScale(float xstart, float ystart, float channel) |
---|
[83] | 147 | { |
---|
| 148 | /** |
---|
[142] | 149 | * Cube::drawScale(xstart, ystart, channel) |
---|
[83] | 150 | * |
---|
| 151 | * A routine to draw a scale bar on a (pre-existing) PGPlot image. |
---|
| 152 | * It uses an iterative technique to move from the given start position |
---|
| 153 | * (xstart,ystart) along the positive x-direction so that the length is |
---|
[142] | 154 | * within 1% of the scaleLength (length in degrees), calculated |
---|
| 155 | * according to the pixel scale of the cube. |
---|
[83] | 156 | * The parameter "channel" is required for the wcslib calculations, as the |
---|
| 157 | * positions could theoretically change with channel. |
---|
| 158 | */ |
---|
| 159 | |
---|
[142] | 160 | if(!cpgtest()) |
---|
| 161 | duchampError("drawScale","There is no PGPlot device open!\n"); |
---|
| 162 | else{ |
---|
[83] | 163 | |
---|
[146] | 164 | if(this->head.isWCS()){ // can only do this if the WCS is good! |
---|
| 165 | |
---|
| 166 | enum ANGLE {ARCSEC, ARCMIN, DEGREE}; |
---|
| 167 | const string symbol[3] = {"\"", "'", mycpgplot::degrees }; |
---|
| 168 | const float angleScale[3] = {3600., 60., 1.}; |
---|
| 169 | // degree, arcmin, arcsec symbols |
---|
[142] | 170 | |
---|
[203] | 171 | const int numLengths = 15; |
---|
| 172 | const float lengths[numLengths] = |
---|
| 173 | {0.01/3600., 0.05/3600., 0.1/3600., 0.5/3600., |
---|
| 174 | 1./3600., 5./3600., 15./3600., 30./3600., |
---|
| 175 | 1./60., 5./60., 15./60., 30./60., |
---|
| 176 | 1., 5., 15.}; |
---|
[146] | 177 | const float desiredRatio = 0.2; |
---|
[142] | 178 | |
---|
[146] | 179 | // first, work out what is the optimum length of the scale bar, |
---|
| 180 | // based on the pixel scale and size of the image. |
---|
| 181 | float pixscale = this->head.getAvPixScale(); |
---|
[203] | 182 | float *fraction = new float[numLengths]; |
---|
[146] | 183 | int best; |
---|
| 184 | float x1,x2,y1,y2; |
---|
| 185 | cpgqwin(&x1,&x2,&y1,&y2); |
---|
[203] | 186 | for(int i=0;i<numLengths;i++){ |
---|
[146] | 187 | fraction[i] = (lengths[i]/pixscale) / (x2-x1); |
---|
| 188 | if(i==0) best=0; |
---|
| 189 | else if(fabs(fraction[i] - desiredRatio) < |
---|
| 190 | fabs(fraction[best] - desiredRatio)) best=i; |
---|
| 191 | } |
---|
| 192 | delete [] fraction; |
---|
[83] | 193 | |
---|
[146] | 194 | ANGLE angleType; |
---|
| 195 | if(best<4) angleType = ARCSEC; |
---|
| 196 | else if(best<8) angleType = ARCMIN; |
---|
| 197 | else angleType = DEGREE; |
---|
| 198 | float scaleLength = lengths[best]; // this is currently in degrees |
---|
[103] | 199 | |
---|
[146] | 200 | // Now work out actual pixel locations for the ends of the scale bar |
---|
| 201 | double *pix1 = new double[3]; |
---|
| 202 | double *pix2 = new double[3]; |
---|
| 203 | double *world1 = new double[3]; |
---|
| 204 | double *world2 = new double[3]; |
---|
| 205 | pix1[0] = pix2[0] = xstart + this->par.getXOffset(); |
---|
| 206 | pix1[1] = pix2[1] = ystart + this->par.getYOffset(); |
---|
| 207 | pix1[2] = pix2[2] = channel; |
---|
| 208 | this->head.pixToWCS(pix1,world1); |
---|
[83] | 209 | |
---|
[146] | 210 | double angSep=0.; |
---|
| 211 | bool keepGoing=false; |
---|
| 212 | float step = 1.; |
---|
| 213 | do{ |
---|
| 214 | if(angSep>scaleLength){ |
---|
| 215 | pix2[0] -= step; |
---|
| 216 | step /= 2.; |
---|
| 217 | } |
---|
| 218 | pix2[0] += step; |
---|
| 219 | this->head.pixToWCS(pix2,world2); |
---|
| 220 | angSep = angularSeparation(world1[0],world1[1],world2[0],world2[1]); |
---|
| 221 | }while((fabs(angSep-scaleLength)/scaleLength)>0.01); // look for 1% change |
---|
[83] | 222 | |
---|
[146] | 223 | float tickpt1 = pix1[0] - this->par.getXOffset(); |
---|
| 224 | float tickpt2 = pix2[0] - this->par.getXOffset(); |
---|
| 225 | float tickpt3 = ystart; |
---|
| 226 | int colour; |
---|
| 227 | cpgqci(&colour); |
---|
| 228 | cpgsci(RED); |
---|
| 229 | int thickness; |
---|
| 230 | cpgqlw(&thickness); |
---|
| 231 | cpgslw(3); |
---|
| 232 | cpgerrx(1,&tickpt1,&tickpt2,&tickpt3,2.); |
---|
| 233 | cpgslw(thickness); |
---|
[83] | 234 | |
---|
[146] | 235 | std::stringstream text; |
---|
| 236 | text << scaleLength * angleScale[angleType] << symbol[angleType]; |
---|
| 237 | float size,xch,ych; |
---|
| 238 | cpgqch(&size); |
---|
| 239 | cpgsch(0.4); |
---|
| 240 | cpgqcs(4,&xch,&ych); // get the character size in world coords |
---|
| 241 | cpgptxt((tickpt1+tickpt2)/2., ystart+ych, 0, 0.5, text.str().c_str()); |
---|
| 242 | cpgsch(size); |
---|
| 243 | cpgsci(colour); |
---|
[142] | 244 | |
---|
[146] | 245 | delete [] pix1,pix2; |
---|
| 246 | delete [] world1,world2; |
---|
[142] | 247 | |
---|
[146] | 248 | } |
---|
[142] | 249 | } |
---|
| 250 | |
---|
[83] | 251 | } |
---|
| 252 | |
---|
[3] | 253 | void Detection::drawBorders(int xoffset, int yoffset) |
---|
| 254 | { |
---|
| 255 | |
---|
[142] | 256 | if(!cpgtest()) |
---|
| 257 | duchampError("drawBorders","There is no PGPlot device open!\n"); |
---|
| 258 | else{ |
---|
[3] | 259 | |
---|
[142] | 260 | float x1,x2,y1,y2; |
---|
| 261 | cpgqwin(&x1,&x2,&y1,&y2); |
---|
| 262 | int xsize = int(x2 - x1) + 1; |
---|
| 263 | int ysize = int(y2 - y1) + 1; |
---|
| 264 | |
---|
| 265 | bool *isObj = new bool[xsize*ysize]; |
---|
| 266 | for(int i=0;i<xsize*ysize;i++) isObj[i]=false; |
---|
| 267 | for(int i=0;i<this->pix.size();i++) |
---|
| 268 | isObj[ (this->pix[i].getY()-yoffset)*xsize + (this->pix[i].getX()-xoffset) ] = true; |
---|
[3] | 269 | |
---|
| 270 | |
---|
[142] | 271 | cpgswin(0,xsize-1,0,ysize-1); |
---|
| 272 | for(int x=this->xmin; x<=this->xmax; x++){ |
---|
| 273 | // for each column... |
---|
| 274 | for(int y=1;y<ysize;y++){ |
---|
| 275 | int current = y*xsize + (x-xoffset); |
---|
| 276 | int previous = (y-1)*xsize + (x-xoffset); |
---|
| 277 | if((isObj[current]&&!isObj[previous])||(!isObj[current]&&isObj[previous])){ |
---|
| 278 | cpgmove(x-xoffset+0, y+0); |
---|
| 279 | cpgdraw(x-xoffset+1, y+0); |
---|
| 280 | } |
---|
[3] | 281 | } |
---|
| 282 | } |
---|
[142] | 283 | for(int y=this->ymin; y<=this->ymax; y++){ |
---|
| 284 | // now for each row... |
---|
| 285 | for(int x=1;x<xsize;x++){ |
---|
| 286 | int current = (y-yoffset)*xsize + x; |
---|
| 287 | int previous = (y-yoffset)*xsize + x - 1; |
---|
| 288 | if((isObj[current]&&!isObj[previous])||(!isObj[current]&&isObj[previous])){ |
---|
| 289 | cpgmove(x+0, y-yoffset+0); |
---|
| 290 | cpgdraw(x+0, y-yoffset+1); |
---|
| 291 | } |
---|
[3] | 292 | } |
---|
| 293 | } |
---|
[142] | 294 | cpgswin(x1,x2,y1,y2); |
---|
[3] | 295 | |
---|
[142] | 296 | delete [] isObj; |
---|
[3] | 297 | |
---|
[142] | 298 | } |
---|
| 299 | |
---|
| 300 | } |
---|
| 301 | |
---|
| 302 | void Cube::drawFieldEdge() |
---|
| 303 | { |
---|
| 304 | if(!cpgtest()) |
---|
| 305 | duchampError("drawFieldEdge","There is no PGPlot device open!\n"); |
---|
| 306 | else{ |
---|
| 307 | int ci; |
---|
| 308 | cpgqci(&ci); |
---|
[146] | 309 | cpgsci(YELLOW); |
---|
[142] | 310 | |
---|
| 311 | cpgmove(-0.5,-0.5); |
---|
| 312 | cpgdraw(-0.5,this->axisDim[1]-0.5); |
---|
| 313 | cpgdraw(this->axisDim[0]-0.5,this->axisDim[1]-0.5); |
---|
| 314 | cpgdraw(this->axisDim[0]-0.5,-0.5); |
---|
| 315 | cpgdraw(-0.5,-0.5); |
---|
| 316 | |
---|
| 317 | cpgsci(ci); |
---|
| 318 | } |
---|
| 319 | } |
---|