/* @(#)plotgra.c 17.1.1.1 (ESO-DMD) 01/25/02 17:45:03 */ /*=========================================================================== Copyright (C) 1995 European Southern Observatory (ESO) This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA. Correspondence concerning ESO-MIDAS should be addressed as follows: Internet e-mail: midas@eso.org Postal address: European Southern Observatory Data Management Division Karl-Schwarzschild-Strasse 2 D 85748 Garching bei Muenchen GERMANY ===========================================================================*/ /*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ .COPYRIGHT (c) 1993 European Southern Observatory .IDENTIFIER PLOTGRA .AUTHOR R.M. van Hees IPG-ESO Garching .KEYWORDS Graphics, bulk data frame, one-dimensional plotting .LANGUAGE C .PURPOSE Plot or overplot a gray scale map in/output: IN_A/C/1/60 = input frame IN_B/C/1/60 = coord_string P3/R/1/4 = scales in X and Y and offset X and Y (default is auto scaling to device filling) INPUTC/C/1/40 = gray scales INPUTC/C/41/40 = options: option1[,option2[,option3]] LOG = logarythmic greyness (default: LINear) NEG = inverse grey scale (default: original values) ABS = abs. values are taken (default: not absolute) STAP = greyness increases stepw.(default: CONtinuous) INPUTI/I/1/1 = size of the smoothing box INPUTR/R/3/1 = greyness of the plot (0.0 --> 1.0) .COMMENTS none .ENVIRONment MIDAS #include Prototypes for MIDAS interfaces #include General symbols for Plot routines .VERSION 1.0 20-Aug-1993 FORTRAN --> ANSI-C RvH 010423 last modif ------------------------------------------------------------*/ /* * Define _POSIX_SOURCE to indicate * that this is a POSIX program */ #define _POSIX_SOURCE 1 /* * definition of the used functions */ #include #include #include #include /* * define some macros and constants */ #include #include #define MAXLEV 50 #define MAXPIX 512 /* max frame dimension (X,Y) accessed at once */ #define MAXSIZ (MAXPIX * MAXPIX) /* * here starts the code of the function */ int main() { register int ii; int actvals, chunks, imf, knul, last_row, naxis, size, stat, unit, ndum[PLDIM2], npix[PLDIM2], sublo[PLDIM2], subhi[PLDIM2]; float amin, amax, greynes, *p_img, nrpix[2], area[4], image[4], wcfram[12], glevl[MAXLEV]; double start[PLDIM2], step[PLDIM2]; char cmnd[21], ident[33], cunit[49], name[61], input[61], buff[81], *label[4], *cbuff; /* * initialised variables */ char *err_usrin = "*** FATAL: error detected in USRINP", *err_1dim = "*** FATAL: frame has only one dimension", *err_1lev = "*** WARNING: only one level given, will use min. and max. in frame", *err_flat = "*** WARNING: zero dynamic range in data at %13.8g", *err_coord = "*** FATAL: invalid coordinate input ...", *err_xcuts = "*** FATAL: range in x has no overlap with current graph abscissa - NO PLOT", *err_ycuts = "*** FATAL: range in y has no overlap with current graph abscissa - NO PLOT"; int access = 0, /* parameter for PCOPEN: plot mode */ plmode = -1, /* plot mode taken from keyword PMODE */ nlevl = 0, /* Default number of contours is zero */ ismoot = 1; /* Default no smooting of the data */ static int options[] = { FALSE, FALSE, FALSE, FALSE, FALSE }; /* The defaults for gray_options are: */ /* 0) lineair increasing grayness */ /* 1) cont. increasing gray scales */ /* 2) leave signs unchanged */ /* 3) do NOT take absolute values */ /* 4) intensities above highest */ /* contour, get the grayness */ /* of the highest level */ static char *axis[PLDIM2] = { "MANU", "MANU" }; /* * allocate memory for different character pointers and initialise a few */ for ( ii = 0; ii < 4; ii++ ) label[ii] = osmmget(81); (void) strcpy( label[0], "Position (" ); (void) strcpy( label[1], "Position (" ); (void) strcpy( label[2], "Image: " ); (void) strcpy( label[3], "Ident: " ); /* * start of executable code */ (void) SCSPRO( "PLTGRA" ); /*contact with the MIDAS monitor*/ /* * plot or overplot mode */ (void) SCKGETC( "MID$CMND", 1, 20, &actvals, cmnd ); if ( *cmnd == 'O' ) access = 1; /* * find file name and read header information */ (void) SCKGETC( "IN_A", 1, 60, &actvals, name ); (void) SCFOPN( name, D_R4_FORMAT, 0, F_IMA_TYPE, &imf ); (void) SCDRDI( imf, "NAXIS", 1, 1, &actvals, &naxis, &unit, &knul ); (void) SCDRDI( imf, "NPIX" , 1, PLDIM2, &actvals, npix , &unit, &knul ); /* * check frame parameters */ if ( naxis < 2 || (npix[0] == 1 || npix[1] == 1) ) SCETER( 1, err_1dim ); /* * read rest descriptor */ (void) SCDRDD( imf, "START", 1, PLDIM2, &actvals, start, &unit, &knul ); (void) SCDRDD( imf, "STEP" , 1, PLDIM2, &actvals, step , &unit, &knul ); (void) SCDGETC( imf, "IDENT", 1, 32, &actvals, ident ); (void) SCDGETC( imf, "CUNIT", 1, 48, &actvals, cunit ); /* * Get the manual setting for the axes */ PCKRDR( "XAXIS", 4, &actvals, wcfram ); PCKRDR( "YAXIS", 4, &actvals, wcfram+FOR_Y ); /* * read window coordinates and take action */ (void) SCKGETC( "IN_B", 1, 60, &actvals, input ); if ( *input == 'm' || *input == 'M' ) /* manual scaling */ { BOXWTP( wcfram, npix[0], start[0], step[0], image ); BOXWTP( wcfram+FOR_Y, npix[1], start[1], step[1], image+2 ); } else { if ( *input == 'c' || *input == 'C' ) /* display input */ { (void) SCKRDR( "OUTPUTR", 10, 1, &actvals, image, &unit, &knul); (void) SCKRDR( "OUTPUTR", 11, 1, &actvals, image+2, &unit, &knul); (void) SCKRDR( "OUTPUTR", 15, 1, &actvals, image+1, &unit, &knul); (void) SCKRDR( "OUTPUTR", 16, 1, &actvals, image+3, &unit, &knul); } else /* automatic scaling */ { stat = Convcoo(1,imf,input,PLDIM2,ndum,sublo,subhi); if ( stat != ERR_NORMAL ) SCETER( 2, err_coord ); image[0] = sublo[0] + 1; image[1] = subhi[0] + 1; image[2] = sublo[1] + 1; image[3] = subhi[1] + 1; } } BOXPTW( image, npix[0], start[0], step[0], area ); BOXPTW( image+2, npix[1], start[1], step[1], area+2 ); PCKWRR( "PIXEL", 4, image ); if ( access == 0 ) { /* * get size of frame along X-axis */ if ( fabs( *wcfram ) < PLT_EPS && fabs( *(wcfram+1) ) < PLT_EPS ) { axis[0] = "AUTO"; wcfram[0] = area[0]; wcfram[1] = area[1]; wcfram[2] = wcfram[3] = 0.0; } /* * get size of frame along Y-axis */ if ( fabs( *(wcfram+FOR_Y) ) < PLT_EPS && fabs( *(wcfram+FOR_Y+1) ) < PLT_EPS ) { axis[1] = "AUTO"; wcfram[FOR_Y] = area[2]; wcfram[FOR_Y+1] = area[3]; } GETFRM( axis[0], wcfram ); GETFRM( axis[1], wcfram + FOR_Y ); PCKWRR( "XWNDL", 4, wcfram ); PCKWRR( "YWNDL", 4, wcfram+FOR_Y ); } else /* overplot mode*/ { PCKRDR( "XWNDL", 4, &actvals, wcfram ); PCKRDR( "YWNDL", 4, &actvals, wcfram+FOR_Y ); /* * does overplot data fall within plotted frame? */ amin = MYMIN( *wcfram, *(wcfram + 1) ); amax = MYMAX( *wcfram, *(wcfram + 1) ); if ( ( MYMAX( area[0], area[1] ) < amin ) || ( MYMIN( area[0], area[1] ) > amax ) ) SCETER( 3, err_xcuts ); amin = MYMIN( *(wcfram + FOR_Y), *(wcfram + FOR_Y+1) ); amax = MYMAX( *(wcfram + FOR_Y), *(wcfram + FOR_Y+1) ); if ( ( MYMAX( area[2], area[3] ) < amin ) || ( MYMIN( area[2], area[3] ) > amax ) ) SCETER( 4, err_ycuts ); } /* * store min and max of frame */ (void) SCDRDR( imf, "LHCUTS", 1, 4, &actvals, wcfram+FOR_Z, &unit, &knul); if ( wcfram[FOR_Z] >= wcfram[FOR_Z+1] ) { if ( wcfram[FOR_Z+2] >= wcfram[FOR_Z+3] ) { (void) sprintf( buff, err_flat, wcfram[FOR_Z] ); SCTPUT( buff ); } else { *(wcfram+FOR_Z) = *(wcfram+FOR_Z+2); *(wcfram+FOR_Z+1) = *(wcfram+FOR_Z+3); } } PCKWRR( "ZWNDL", 2, wcfram+FOR_Z ); /* * get the levels and smoothing parameter */ (void) SCKGETC( "INPUTC", 1, 40, &actvals, input ); CGN_LOWSTR( input ); if ( strncmp( input, "def", 3 ) != 0 ) { cbuff = (char *) glevl; if ( USRINP( 'r', input, MAXLEV, cbuff, &nlevl ) != ERR_NORMAL ) SCETER( 5, err_usrin ); /* * sort them */ SORLEV( nlevl-1, glevl ); if ( nlevl > 2 ) options[1] = TRUE; } else { glevl[0] = wcfram[FOR_Z]; glevl[1] = wcfram[FOR_Z+1]; nlevl = 2; } /* * check for more than one input level */ if ( nlevl < 1 ) { SCTPUT( err_1lev ); glevl[0] = wcfram[FOR_Z]; glevl[1] = wcfram[FOR_Z+1]; nlevl = 2; } /* * get the smooting parameter */ (void) SCKRDI( "INPUTI", 1, 1, &actvals, &ismoot, &unit, &knul); /* * get the greyness */ (void) SCKRDR( "INPUTR", 3, 1, &actvals, &greynes, &unit, &knul); if ( greynes < 0.0 || greynes > 1.0 ) greynes = 1.0; /* * get options */ (void) SCKGETC( "INPUTC", 41, 80, &actvals, input ); CGN_LOWSTR( input ); if ( strin( input, "log" ) ) options[0] = TRUE; if ( strin( input, "step" ) ) options[1] = TRUE; if ( strin( input, "neg" ) ) options[2] = TRUE; if ( strin( input, "abs" ) ) options[3] = TRUE; if ( strin( input, "cut" ) ) options[4] = TRUE; /* * setup graphic device according to MIDAS settings */ PCOPEN( " ", " ", access, &plmode ); /* * determine number of pixels and number of chunks */ nrpix[0] = (int) fabs( image[1] - image[0] ) + 1; nrpix[1] = (int) fabs( image[3] - image[2] ) + 1; last_row = MYMAX( image[2], image[3]); chunks = (int) ceil( (double) nrpix[0] * nrpix[1] / MAXSIZ ); nrpix[1] = (int) ceil( (double) nrpix[1] / chunks ); /* * allocate virtual memory and scratch space */ size = nrpix[0] * nrpix[1]; p_img = (float *) osmmget( size * sizeof( float )); for ( ii = 0; ii < chunks; ii++ ) { if ( image[3] > image[2] ) /* size of chunk p.c.*/ { if ( ii > 0 ) image[2] += nrpix[1] - 1.0; image[3] = MYMIN( last_row, image[2] + nrpix[1] - 1 ); } else { if ( ii > 0 ) image[3] += nrpix[1] - 1.0; image[2] = MYMIN( last_row, image[3] + nrpix[1] - 1 ); } /* * get size of chunk in w.c. */ BOXPTW( image+2, npix[1], start[1], step[1], area+2 ); /* * extract chunck from original frame */ GETDAT( imf, MAXSIZ, npix, image, ismoot, p_img ); /* * do it!! */ PLGRA( p_img, image, area, step, glevl, nlevl, options, greynes ); /* * updating for the next loop */ nrpix[1] = MYMIN( last_row - ii * nrpix[1], nrpix[1] ); size = nrpix[0] * nrpix[1]; } (void) SCFCLO( imf ); /* * draw the axes and the label */ if ( plmode >= 0 && access == 0 ) { if ( strlen( cunit ) > (size_t) 32 ) { (void) strcat( label[1], cunit+32 ); *(cunit+32) = '\0'; } if ( strlen( cunit ) > (size_t) 16 ) (void) strcat( label[0], cunit+16 ); for ( ii = 0; ii < PLDIM2; ii++ ) { (void) strcat( label[ii], ")" ); LABSTR( label[ii] ); } /* * plot axes and labels */ PCFRAM( wcfram, wcfram+FOR_Y, label[0], label[1] ); if ( plmode == 1 ) { (void) strcat( label[2], name ); (void) strcat( label[3], ident ); WEDGE( step, glevl, nlevl, options, greynes ); PLIDEN( plmode, label[2], label[3] ); } else if ( plmode == 2 ) PLGRAI( plmode, name, ident, nlevl, glevl, options ); } /* * close plot file and terminate graphic operations */ PCCLOS(); return SCSEPI(); }