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/* $Id: fors_resample.c,v 1.11 2013-08-14 16:11:42 cgarcia Exp $
*
* This file is part of the FORS Data Reduction Pipeline
* Copyright (C) 2002-2010 European Southern Observatory
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*
* $Author: cgarcia $
* $Date: 2013-08-14 16:11:42 $
* $Revision: 1.11 $
* $Name: not supported by cvs2svn $
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <math.h>
#include <cpl.h>
#include <moses.h>
#include <fors_dfs.h>
static int fors_resample_create(cpl_plugin *);
static int fors_resample_exec(cpl_plugin *);
static int fors_resample_destroy(cpl_plugin *);
static int fors_resample(cpl_parameterlist *, cpl_frameset *);
static char fors_resample_description[] =
"This recipe is used to resample at constant wavelength step spatially\n"
"rectified spectra. The input frames are produced using either the recipe\n"
"fors_extract_slits in the case of MOS/MXU multi slit exposures, or the\n"
"recipes fors_remove_bias and fors_flatfield in the case of LSS or long-slit\n"
"like MOS/MXU data. Only in case of LSS or LSS-like data the SLIT_LOCATION\n"
"table is required in input. Please refer to the FORS Pipeline User's Manual\n"
"for more details.\n"
"\n"
"In the table below the MXU acronym can also be read as MOS and LSS, SCI\n"
"can be read as STD, and SCIENCE as STANDARD.\n\n"
"Input files:\n\n"
" DO category: Type: Explanation: Required:\n"
" LAMP_UNBIAS_MXU\n"
" or SCIENCE_UNBIAS_MXU\n"
" or SCIENCE_UNFLAT_MXU\n"
" or RECTIFIED_LAMP_MXU\n"
" or RECTIFIED_ALL_SCI_MXU\n"
" or RECTIFIED_SCI_MXU\n"
" or RECTIFIED_SKY_SCI_MXU Calib Frame to resample Y\n"
" DISP_COEFF_MXU\n"
" or DISP_COEFF_SCI_MXU Calib Dispersion coefficients Y\n"
" SLIT_LOCATION_MXU Calib Slit location table Y\n"
" GRISM_TABLE Calib Grism table .\n\n"
"Output files:\n\n"
" DO category: Data type: Explanation:\n"
" MAPPED_LAMP_MXU\n"
" or MAPPED_ALL_SCI_MXU\n"
" or MAPPED_SCI_MXU\n"
" or MAPPED_SKY_SCI_MXU FITS image Resampled spectra\n\n";
#define fors_resample_exit(message) \
{ \
if ((const char *)message != NULL) cpl_msg_error(recipe, message); \
cpl_image_delete(spectra); \
cpl_image_delete(mapped); \
cpl_table_delete(grism_table); \
cpl_table_delete(idscoeff); \
cpl_table_delete(slits); \
cpl_propertylist_delete(header); \
cpl_msg_indent_less(); \
return -1; \
}
#define fors_resample_exit_memcheck(message) \
{ \
if ((const char *)message != NULL) cpl_msg_info(recipe, message); \
printf("free spectra (%p)\n", spectra); \
cpl_image_delete(spectra); \
printf("free mapped (%p)\n", mapped); \
cpl_image_delete(mapped); \
printf("free grism_table (%p)\n", grism_table); \
cpl_table_delete(grism_table); \
printf("free idscoeff (%p)\n", idscoeff); \
cpl_table_delete(idscoeff); \
printf("free slits (%p)\n", slits); \
cpl_table_delete(slits); \
printf("free header (%p)\n", header); \
cpl_propertylist_delete(header); \
cpl_msg_indent_less(); \
return 0; \
}
/**
* @brief Build the list of available plugins, for this module.
*
* @param list The plugin list
*
* @return 0 if everything is ok, -1 otherwise
*
* Create the recipe instance and make it available to the application
* using the interface. This function is exported.
*/
int cpl_plugin_get_info(cpl_pluginlist *list)
{
cpl_recipe *recipe = cpl_calloc(1, sizeof *recipe );
cpl_plugin *plugin = &recipe->interface;
cpl_plugin_init(plugin,
CPL_PLUGIN_API,
FORS_BINARY_VERSION,
CPL_PLUGIN_TYPE_RECIPE,
"fors_resample",
"Resample input spectra at constant wavelength step",
fors_resample_description,
"Carlo Izzo",
PACKAGE_BUGREPORT,
"This file is currently part of the FORS Instrument Pipeline\n"
"Copyright (C) 2002-2010 European Southern Observatory\n\n"
"This program is free software; you can redistribute it and/or modify\n"
"it under the terms of the GNU General Public License as published by\n"
"the Free Software Foundation; either version 2 of the License, or\n"
"(at your option) any later version.\n\n"
"This program is distributed in the hope that it will be useful,\n"
"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
"GNU General Public License for more details.\n\n"
"You should have received a copy of the GNU General Public License\n"
"along with this program; if not, write to the Free Software Foundation,\n"
"Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA\n",
fors_resample_create,
fors_resample_exec,
fors_resample_destroy);
cpl_pluginlist_append(list, plugin);
return 0;
}
/**
* @brief Setup the recipe options
*
* @param plugin The plugin
*
* @return 0 if everything is ok
*
* Defining the command-line/configuration parameters for the recipe.
*/
static int fors_resample_create(cpl_plugin *plugin)
{
cpl_recipe *recipe;
cpl_parameter *p;
/*
* Check that the plugin is part of a valid recipe
*/
if (cpl_plugin_get_type(plugin) == CPL_PLUGIN_TYPE_RECIPE)
recipe = (cpl_recipe *)plugin;
else
return -1;
/*
* Create the (empty) parameters list in the cpl_recipe object
*/
recipe->parameters = cpl_parameterlist_new();
/*
* Dispersion
*/
p = cpl_parameter_new_value("fors.fors_resample.dispersion",
CPL_TYPE_DOUBLE,
"Expected spectral dispersion (Angstrom/pixel)",
"fors.fors_resample",
0.0);
cpl_parameter_set_alias(p, CPL_PARAMETER_MODE_CLI, "dispersion");
cpl_parameter_disable(p, CPL_PARAMETER_MODE_ENV);
cpl_parameterlist_append(recipe->parameters, p);
/*
* Start wavelength for spectral extraction
*/
p = cpl_parameter_new_value("fors.fors_resample.startwavelength",
CPL_TYPE_DOUBLE,
"Start wavelength in spectral extraction",
"fors.fors_resample",
0.0);
cpl_parameter_set_alias(p, CPL_PARAMETER_MODE_CLI, "startwavelength");
cpl_parameter_disable(p, CPL_PARAMETER_MODE_ENV);
cpl_parameterlist_append(recipe->parameters, p);
/*
* End wavelength for spectral extraction
*/
p = cpl_parameter_new_value("fors.fors_resample.endwavelength",
CPL_TYPE_DOUBLE,
"End wavelength in spectral extraction",
"fors.fors_resample",
0.0);
cpl_parameter_set_alias(p, CPL_PARAMETER_MODE_CLI, "endwavelength");
cpl_parameter_disable(p, CPL_PARAMETER_MODE_ENV);
cpl_parameterlist_append(recipe->parameters, p);
/*
* Flux conservation
*/
p = cpl_parameter_new_value("fors.fors_resample.flux",
CPL_TYPE_BOOL,
"Apply flux conservation",
"fors.fors_resample",
TRUE);
cpl_parameter_set_alias(p, CPL_PARAMETER_MODE_CLI, "flux");
cpl_parameter_disable(p, CPL_PARAMETER_MODE_ENV);
cpl_parameterlist_append(recipe->parameters, p);
return 0;
}
/**
* @brief Execute the plugin instance given by the interface
*
* @param plugin the plugin
*
* @return 0 if everything is ok
*/
static int fors_resample_exec(cpl_plugin *plugin)
{
cpl_recipe *recipe;
if (cpl_plugin_get_type(plugin) == CPL_PLUGIN_TYPE_RECIPE)
recipe = (cpl_recipe *)plugin;
else
return -1;
return fors_resample(recipe->parameters, recipe->frames);
}
/**
* @brief Destroy what has been created by the 'create' function
*
* @param plugin The plugin
*
* @return 0 if everything is ok
*/
static int fors_resample_destroy(cpl_plugin *plugin)
{
cpl_recipe *recipe;
if (cpl_plugin_get_type(plugin) == CPL_PLUGIN_TYPE_RECIPE)
recipe = (cpl_recipe *)plugin;
else
return -1;
cpl_parameterlist_delete(recipe->parameters);
return 0;
}
/**
* @brief Interpret the command line options and execute the data processing
*
* @param parlist The parameters list
* @param frameset The set-of-frames
*
* @return 0 if everything is ok
*/
static int fors_resample(cpl_parameterlist *parlist,
cpl_frameset *frameset)
{
const char *recipe = "fors_resample";
/*
* Input parameters
*/
double dispersion;
double startwavelength;
double endwavelength;
int flux;
/*
* CPL objects
*/
cpl_image *spectra = NULL;
cpl_image *mapped = NULL;
cpl_table *grism_table = NULL;
cpl_table *maskslits = NULL;
cpl_table *slits = NULL;
cpl_table *idscoeff = NULL;
cpl_propertylist *header = NULL;
/*
* Auxiliary variables
*/
char version[80];
const char *disp_coeff_tag;
const char *slit_location_tag;
const char *rectified_tag;
const char *mapped_tag;
int nframes;
int rebin;
double reference;
int treat_as_lss = 0;
int mxu, mos, lss;
int disp;
int dispsci;
int dispstd;
int sciall;
int stdall;
int scisky;
int stdsky;
int sci;
int std;
int lamp;
char *instrume = NULL;
cpl_msg_set_indentation(2);
/*
* Get configuration parameters
*/
cpl_msg_info(recipe, "Recipe %s configuration parameters:", recipe);
cpl_msg_indent_more();
if (cpl_frameset_count_tags(frameset, "GRISM_TABLE") > 1)
fors_resample_exit("Too many in input: GRISM_TABLE");
grism_table = dfs_load_table(frameset, "GRISM_TABLE", 1);
dispersion = dfs_get_parameter_double(parlist,
"fors.fors_resample.dispersion", grism_table);
if (dispersion <= 0.0)
fors_resample_exit("Invalid spectral dispersion value");
startwavelength = dfs_get_parameter_double(parlist,
"fors.fors_resample.startwavelength", grism_table);
if (startwavelength > 1.0)
if (startwavelength < 3000.0 || startwavelength > 13000.0)
fors_resample_exit("Invalid wavelength");
endwavelength = dfs_get_parameter_double(parlist,
"fors.fors_resample.endwavelength", grism_table);
if (endwavelength > 1.0) {
if (endwavelength < 3000.0 || endwavelength > 13000.0)
fors_resample_exit("Invalid wavelength");
if (startwavelength < 1.0)
fors_resample_exit("Invalid wavelength interval");
}
if (startwavelength > 1.0)
if (endwavelength - startwavelength <= 0.0)
fors_resample_exit("Invalid wavelength interval");
flux = dfs_get_parameter_bool(parlist, "fors.fors_resample.flux", NULL);
cpl_table_delete(grism_table); grism_table = NULL;
if (cpl_error_get_code())
fors_resample_exit("Failure reading the configuration parameters");
cpl_msg_indent_less();
cpl_msg_info(recipe, "Check input set-of-frames:");
cpl_msg_indent_more();
mxu = cpl_frameset_count_tags(frameset, "DISP_COEFF_MXU");
mxu += cpl_frameset_count_tags(frameset, "DISP_COEFF_SCI_MXU");
mxu += cpl_frameset_count_tags(frameset, "DISP_COEFF_STD_MXU");
mos = cpl_frameset_count_tags(frameset, "DISP_COEFF_MOS");
mos += cpl_frameset_count_tags(frameset, "DISP_COEFF_SCI_MOS");
mos += cpl_frameset_count_tags(frameset, "DISP_COEFF_STD_MOS");
lss = cpl_frameset_count_tags(frameset, "DISP_COEFF_LSS");
lss += cpl_frameset_count_tags(frameset, "DISP_COEFF_SCI_LSS");
lss += cpl_frameset_count_tags(frameset, "DISP_COEFF_STD_LSS");
nframes = mos + mxu + lss;
if (nframes == 0) {
fors_resample_exit("Missing dispersion coefficients table");
}
if (nframes > 1) {
cpl_msg_error(recipe,
"Too many input dispersion coefficients tables (%d > 1)",
nframes);
fors_resample_exit(NULL);
}
disp = cpl_frameset_count_tags(frameset, "DISP_COEFF_MXU");
disp += cpl_frameset_count_tags(frameset, "DISP_COEFF_MOS");
disp += cpl_frameset_count_tags(frameset, "DISP_COEFF_LSS");
dispsci = cpl_frameset_count_tags(frameset, "DISP_COEFF_SCI_MXU");
dispsci += cpl_frameset_count_tags(frameset, "DISP_COEFF_SCI_MOS");
dispsci += cpl_frameset_count_tags(frameset, "DISP_COEFF_SCI_LSS");
dispstd = cpl_frameset_count_tags(frameset, "DISP_COEFF_STD_MXU");
dispstd += cpl_frameset_count_tags(frameset, "DISP_COEFF_STD_MOS");
dispstd += cpl_frameset_count_tags(frameset, "DISP_COEFF_STD_LSS");
if (mxu) {
slit_location_tag = "SLIT_LOCATION_MXU";
if (disp)
disp_coeff_tag = "DISP_COEFF_MXU";
else if (dispsci)
disp_coeff_tag = "DISP_COEFF_SCI_MXU";
else
disp_coeff_tag = "DISP_COEFF_STD_MXU";
}
else if (mos) {
slit_location_tag = "SLIT_LOCATION_MOS";
if (disp)
disp_coeff_tag = "DISP_COEFF_MOS";
else if (dispsci)
disp_coeff_tag = "DISP_COEFF_SCI_MOS";
else
disp_coeff_tag = "DISP_COEFF_STD_MOS";
}
else {
slit_location_tag = "SLIT_LOCATION_LSS";
if (disp)
disp_coeff_tag = "DISP_COEFF_LSS";
else if (dispsci)
disp_coeff_tag = "DISP_COEFF_SCI_LSS";
else
disp_coeff_tag = "DISP_COEFF_STD_LSS";
}
header = dfs_load_header(frameset, disp_coeff_tag, 0);
if (header == NULL)
fors_resample_exit("Cannot load dispersion coefficients table header");
if (mos || mxu) {
int nslits_out_det = 0;
if (mos)
maskslits = mos_load_slits_fors_mos(header, &nslits_out_det);
else
maskslits = mos_load_slits_fors_mxu(header);
/*
* Check if all slits have the same X offset.
*/
treat_as_lss = fors_mos_is_lss_like(maskslits, nslits_out_det);
cpl_table_delete(maskslits); maskslits = NULL;
}
cpl_propertylist_delete(header); header = NULL;
if (mxu) {
if (treat_as_lss) {
sciall = cpl_frameset_count_tags(frameset, "SCIENCE_UNFLAT_MXU");
stdall = cpl_frameset_count_tags(frameset, "STANDARD_UNFLAT_MXU");
scisky = 0;
stdsky = 0;
sci = cpl_frameset_count_tags(frameset, "SCIENCE_UNBIAS_MXU");
std = cpl_frameset_count_tags(frameset, "STANDARD_UNBIAS_MXU");
lamp = cpl_frameset_count_tags(frameset, "LAMP_UNBIAS_MXU");
}
else {
sciall = cpl_frameset_count_tags(frameset, "RECTIFIED_ALL_SCI_MXU");
stdall = cpl_frameset_count_tags(frameset, "RECTIFIED_ALL_STD_MXU");
scisky = cpl_frameset_count_tags(frameset, "RECTIFIED_SKY_SCI_MXU");
stdsky = cpl_frameset_count_tags(frameset, "RECTIFIED_SKY_STD_MXU");
sci = cpl_frameset_count_tags(frameset, "RECTIFIED_SCI_MXU");
std = cpl_frameset_count_tags(frameset, "RECTIFIED_STD_MXU");
lamp = cpl_frameset_count_tags(frameset, "RECTIFIED_LAMP_MXU");
}
}
else if (mos) {
if (treat_as_lss) {
sciall = cpl_frameset_count_tags(frameset, "SCIENCE_UNFLAT_MOS");
stdall = cpl_frameset_count_tags(frameset, "STANDARD_UNFLAT_MOS");
scisky = 0;
stdsky = 0;
sci = cpl_frameset_count_tags(frameset, "SCIENCE_UNBIAS_MOS");
std = cpl_frameset_count_tags(frameset, "STANDARD_UNBIAS_MOS");
lamp = cpl_frameset_count_tags(frameset, "LAMP_UNBIAS_MOS");
}
else {
sciall = cpl_frameset_count_tags(frameset, "RECTIFIED_ALL_SCI_MOS");
stdall = cpl_frameset_count_tags(frameset, "RECTIFIED_ALL_STD_MOS");
scisky = cpl_frameset_count_tags(frameset, "RECTIFIED_SKY_SCI_MOS");
stdsky = cpl_frameset_count_tags(frameset, "RECTIFIED_SKY_STD_MOS");
sci = cpl_frameset_count_tags(frameset, "RECTIFIED_SCI_MOS");
std = cpl_frameset_count_tags(frameset, "RECTIFIED_STD_MOS");
lamp = cpl_frameset_count_tags(frameset, "RECTIFIED_LAMP_MOS");
}
}
else {
sciall = cpl_frameset_count_tags(frameset, "SCIENCE_UNFLAT_LSS");
stdall = cpl_frameset_count_tags(frameset, "STANDARD_UNFLAT_LSS");
scisky = 0;
stdsky = 0;
sci = cpl_frameset_count_tags(frameset, "SCIENCE_UNBIAS_LSS");
std = cpl_frameset_count_tags(frameset, "STANDARD_UNBIAS_LSS");
lamp = cpl_frameset_count_tags(frameset, "LAMP_UNBIAS_LSS");
}
nframes = sciall + stdall + scisky + stdsky + sci + std + lamp;
if (nframes == 0)
fors_resample_exit("Missing input spectral frame");
if (nframes > 1) {
cpl_msg_error(recipe, "Too many input spectral frames (%d > 1)",
nframes);
fors_resample_exit(NULL);
}
if (sciall) {
if (mxu) {
if (treat_as_lss) {
rectified_tag = "SCIENCE_UNFLAT_MXU";
mapped_tag = "MAPPED_ALL_SCI_MXU";
}
else {
rectified_tag = "RECTIFIED_ALL_SCI_MXU";
mapped_tag = "MAPPED_ALL_SCI_MXU";
}
}
else if (mos) {
if (treat_as_lss) {
rectified_tag = "SCIENCE_UNFLAT_MOS";
mapped_tag = "MAPPED_ALL_SCI_MOS";
}
else {
rectified_tag = "RECTIFIED_ALL_SCI_MOS";
mapped_tag = "MAPPED_ALL_SCI_MOS";
}
}
else {
rectified_tag = "SCIENCE_UNFLAT_LSS";
mapped_tag = "MAPPED_ALL_SCI_LSS";
}
}
else if (stdall) {
if (mxu) {
if (treat_as_lss) {
rectified_tag = "STANDARD_UNFLAT_MXU";
mapped_tag = "MAPPED_ALL_STD_MXU";
}
else {
rectified_tag = "RECTIFIED_ALL_STD_MXU";
mapped_tag = "MAPPED_ALL_STD_MXU";
}
}
else if (mos) {
if (treat_as_lss) {
rectified_tag = "STANDARD_UNFLAT_MOS";
mapped_tag = "MAPPED_ALL_STD_MOS";
}
else {
rectified_tag = "RECTIFIED_ALL_STD_MOS";
mapped_tag = "MAPPED_ALL_STD_MOS";
}
}
else {
rectified_tag = "STANDARD_UNFLAT_LSS";
mapped_tag = "MAPPED_ALL_STD_LSS";
}
}
else if (scisky) {
if (mxu) {
rectified_tag = "RECTIFIED_SKY_SCI_MXU";
mapped_tag = "MAPPED_SKY_SCI_MXU";
}
else {
rectified_tag = "RECTIFIED_SKY_SCI_MOS";
mapped_tag = "MAPPED_SKY_SCI_MOS";
}
}
else if (stdsky) {
if (mxu) {
rectified_tag = "RECTIFIED_SKY_STD_MXU";
mapped_tag = "MAPPED_SKY_STD_MXU";
}
else {
rectified_tag = "RECTIFIED_SKY_STD_MOS";
mapped_tag = "MAPPED_SKY_STD_MOS";
}
}
else if (sci) {
if (mxu) {
if (treat_as_lss) {
rectified_tag = "SCIENCE_UNBIAS_MXU";
mapped_tag = "MAPPED_ALL_SCI_MXU";
}
else {
rectified_tag = "RECTIFIED_SCI_MXU";
mapped_tag = "MAPPED_SCI_MXU";
}
}
else if (mos) {
if (treat_as_lss) {
rectified_tag = "SCIENCE_UNBIAS_MOS";
mapped_tag = "MAPPED_ALL_SCI_MOS";
}
else {
rectified_tag = "RECTIFIED_SCI_MOS";
mapped_tag = "MAPPED_SCI_MOS";
}
}
else {
rectified_tag = "SCIENCE_UNBIAS_LSS";
mapped_tag = "MAPPED_ALL_SCI_LSS";
}
}
else if (std) {
if (mxu) {
if (treat_as_lss) {
rectified_tag = "STANDARD_UNBIAS_MXU";
mapped_tag = "MAPPED_ALL_STD_MXU";
}
else {
rectified_tag = "RECTIFIED_STD_MXU";
mapped_tag = "MAPPED_STD_MXU";
}
}
else if (mos) {
if (treat_as_lss) {
rectified_tag = "STANDARD_UNBIAS_MOS";
mapped_tag = "MAPPED_ALL_STD_MOS";
}
else {
rectified_tag = "RECTIFIED_STD_MOS";
mapped_tag = "MAPPED_STD_MOS";
}
}
else {
rectified_tag = "STANDARD_UNBIAS_LSS";
mapped_tag = "MAPPED_ALL_STD_LSS";
}
}
else if (lamp) {
if (mxu) {
if (treat_as_lss) {
rectified_tag = "LAMP_UNBIAS_MXU";
mapped_tag = "MAPPED_LAMP_MXU";
}
else {
rectified_tag = "RECTIFIED_LAMP_MXU";
mapped_tag = "MAPPED_LAMP_MXU";
}
}
else if (mos) {
if (treat_as_lss) {
rectified_tag = "LAMP_UNBIAS_MOS";
mapped_tag = "MAPPED_LAMP_MOS";
}
else {
rectified_tag = "RECTIFIED_LAMP_MOS";
mapped_tag = "MAPPED_LAMP_MOS";
}
}
else {
rectified_tag = "LAMP_UNBIAS_LSS";
mapped_tag = "MAPPED_LAMP_LSS";
}
}
header = dfs_load_header(frameset, rectified_tag, 0);
if (header == NULL)
fors_resample_exit("Cannot load spectral frame header");
if (!dfs_equal_keyword(frameset, "ESO INS GRIS1 ID"))
cpl_msg_warning(cpl_func,"Input frames are not from the same grism");
if (!dfs_equal_keyword(frameset, "ESO INS FILT1 ID"))
cpl_msg_warning(cpl_func,"Input frames are not from the same filter");
if (!dfs_equal_keyword(frameset, "ESO DET CHIP1 ID"))
cpl_msg_warning(cpl_func,"Input frames are not from the same chip");
/*
* Get the reference wavelength and the rebin factor along the
* dispersion direction from the reference frame
*/
instrume = (char *)cpl_propertylist_get_string(header, "INSTRUME");
if (instrume == NULL)
fors_resample_exit("Missing keyword INSTRUME in reference frame "
"header");
if (instrume[4] == '1')
snprintf(version, 80, "%s/%s", "fors1", VERSION);
if (instrume[4] == '2')
snprintf(version, 80, "%s/%s", "fors2", VERSION);
reference = cpl_propertylist_get_double(header, "ESO INS GRIS1 WLEN");
if (cpl_error_get_code() != CPL_ERROR_NONE)
fors_resample_exit("Missing keyword ESO INS GRIS1 WLEN "
"in reference frame header");
if (reference < 3000.0) /* Perhaps in nanometers... */
reference *= 10;
if (reference < 3000.0 || reference > 13000.0) {
cpl_msg_error(recipe, "Invalid central wavelength %.2f read from "
"keyword ESO INS GRIS1 WLEN in reference frame header",
reference);
fors_resample_exit(NULL);
}
cpl_msg_info(recipe, "The central wavelength is: %.2f", reference);
rebin = cpl_propertylist_get_int(header, "ESO DET WIN1 BINX");
if (cpl_error_get_code() != CPL_ERROR_NONE)
fors_resample_exit("Missing keyword ESO DET WIN1 BINX "
"in reference frame header");
if (rebin != 1) {
dispersion *= rebin;
cpl_msg_warning(recipe, "The rebin factor is %d, and therefore the "
"working dispersion used is %f A/pixel", rebin,
dispersion);
}
cpl_msg_indent_less();
cpl_msg_info(recipe, "Load input frames...");
cpl_msg_indent_more();
spectra = dfs_load_image(frameset, rectified_tag, CPL_TYPE_FLOAT, 0, 0);
if (spectra == NULL)
fors_resample_exit("Cannot load input spectral frame");
idscoeff = dfs_load_table(frameset, disp_coeff_tag, 1);
if (idscoeff == NULL)
fors_resample_exit("Cannot load dispersion solution table");
if (lss || treat_as_lss) {
int first_row, last_row, ylow, yhig, nx;
cpl_image *dummy;
slits = dfs_load_table(frameset, slit_location_tag, 1);
if (slits == NULL)
fors_resample_exit("Cannot load slit location table");
first_row = cpl_table_get_double(slits, "ybottom", 0, NULL);
last_row = cpl_table_get_double(slits, "ytop", 0, NULL);
ylow = first_row + 1;
yhig = last_row + 1;
nx = cpl_image_get_size_x(spectra);
dummy = cpl_image_extract(spectra, 1, ylow, nx, yhig);
cpl_image_delete(spectra); spectra = dummy;
}
cpl_msg_indent_less();
cpl_msg_info(recipe, "Spectral resampling...");
cpl_msg_indent_more();
mapped = mos_wavelength_calibration(spectra, reference,
startwavelength, endwavelength,
dispersion, idscoeff, flux);
cpl_table_delete(idscoeff); idscoeff = NULL;
cpl_image_delete(spectra); spectra = NULL;
cpl_propertylist_update_double(header, "CRPIX1", 1.0);
cpl_propertylist_update_double(header, "CRPIX2", 1.0);
cpl_propertylist_update_double(header, "CRVAL1",
startwavelength + dispersion/2);
cpl_propertylist_update_double(header, "CRVAL2", 1.0);
/* cpl_propertylist_update_double(header, "CDELT1", dispersion);
cpl_propertylist_update_double(header, "CDELT2", 1.0); */
cpl_propertylist_update_double(header, "CD1_1", dispersion);
cpl_propertylist_update_double(header, "CD1_2", 0.0);
cpl_propertylist_update_double(header, "CD2_1", 0.0);
cpl_propertylist_update_double(header, "CD2_2", 1.0);
cpl_propertylist_update_string(header, "CTYPE1", "LINEAR");
cpl_propertylist_update_string(header, "CTYPE2", "PIXEL");
if (dfs_save_image(frameset, mapped, mapped_tag,
header, parlist, recipe, version))
fors_resample_exit(NULL);
cpl_image_delete(mapped); mapped = NULL;
cpl_propertylist_delete(header); header = NULL;
return 0;
}
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