1 SUMMARY This is a quick reference about all programs available under the GILDAS package. It may not be up to date, and not all listed programs are fully debugged. For convenience, this is a thematic summary in which some algorithms may appear more than one time. * GFITS * * GRAPHIC * * MAPPING * * VECTOR * BACKGROUND BLANKING CIRCLE CLEAN-C CLEAN COMBINE COMPRESS CONVERT CORRELATE CV_SMOOTH DG_SMOOTH EXAMPLE EXAMPLE1 EXPAND EXTRACT FIELD_FIND FIELD_LIST FIELD_STAT FILL_CUBE FITS_GILDAS FLOW FOURIER GAUSS_1D GAUSS_2D GAUSS_SMOOTH GILDAS_FITS GRID_CUBE GRID_EXTEND GRID_PROJECT GRID_SG HEADER HISTO_CLOUD HISTO_CROSS HISTO_DOUBLE HISTO_SIMPLE HISTO_TABLE IMAGE INTERPOLATE LIST MAKE_BACK MAKE_CUBE MAKE_MOSAIC MAKPLAN MANDEL MANDEL_REAL MAP_AVER MAP_COMPRESS MAP_EXPAND MAP_INTER MASK MERGE MINIMIZE MIX-C MOSAIC MOSAIC_CLEAN MX NOISE_SMOOTH ONOFF OVERLAY PLANE PLANE_OLD PRIMARY PSC REGRESSION REGUL REPROJECT RESTORE RGBTOPS SELF_CAL SHIFT SMOOTH SORT SUM SWAP TABLE TRANSPOSE TRUE_COLOR UV_ASCAL UV_AVERAGE UV_CENTER UV_CIRCLE UV_CLIP UV_COMPRESS UV_CRASH UV_DFT UV_EXTRACT UV_FIT-OLD UV_FIT UV_FITC UV_FLAG UV_LIST UV_MAP UV_MERGE UV_MODEL UV_NOISE UV_SELFCAL UV_SHIFT UV_SHORT UV_SINGLE UV_SUBTRACT UV_ZERO UVMAP UVSORT To access the following subtopic, type (under UNIX) "EXPLAIN SUMMARY subtopic" 2 AVAILABLE_TASKS BACKGROUND Compute background images BLANKING Change the blanking value CIRCLE Make the circular average of an image CLEAN-C ? CLEAN Cleaning (of data cubes). COMBINE Combine two input images in many ways COMPRESS ? CONVERT NIC task. CORRELATE Compute correlation image of two images. CV_SMOOTH Cross validation smoothing DG_SMOOTH Conjugate Gradient smoothing EXAMPLE A simple example for input parameters EXPAND ? EXTRACT Extract a subset of an image to fill a subset of an image FIELD_FIND Find the fields in an image FIELD_LIST Find parameters of fields in an image FILL_CUBE Resample a cube by Random or Regular interpolation FITS_GILDAS Single Image disk-FITS to GILDAS translator FLOW A bipolar flow hunter !... FOURIER Compute complex fourier transform of an image GAUSS_1D Multi component one-dimension gaussian fitting GAUSS_2D Single component two-dimension gaussian fitting GAUSS_SMOOTH Smooth by a gaussian in the fourier plane GILDAS_FITS Single image GILDAS to disk-FITS translator GRID_CUBE A simple gridding task to make an image from a table. GRID_EXTEND A gridding task to make an image from a table. GRID_PROJECT A task to reproject using convolution. GRID_SG A gridding task to make an image from a table. HEADER List and modify an image header HISTO_CLOUD Cross histogram of two input images (Table output) HISTO_CROSS Cross histogram of two input images (Image output) HISTO_DOUBLE Histogram of an image as a function of another HISTO_SIMPLE Histogram of an image HISTO_TABLE Cross histogram of column tables IMAGE Make an image from an RGDATA-like file INTERPOLATE Resample and smooth an image along one direction LIST List a table MAKE_BACK Compute a background image MAKE_CUBE Image reconstruction from uncomplete sample MAKE_MOSAIC Build a mosaic for deconvolution by MAPPING MAKPLAN NIC task MANDEL Mandelbrot ensemble (integer version) MANDEL_REAL Mandelbrot ensemble (real version) MAP_AVER Average plans of a 3-D data cube. MAP_COMPRESS Compress images (by Fourier truncation) MAP_EXPAND Expand images (by Fourier expansion) MAP_INTER Resample data cubes along 3rd axis. MASK Mask part of cube MERGE Merging of Tables MINIMIZE Find best linear correlation between two images MIX-C ? MOSAIC ? MOSAIC_CLEAN ? MX UV plane-based CLEAN technique NOISE_SMOOTH Noise smoothing enhancement ONOFF NIC Task OVERLAY ? PLANE Compute the plane going through three points PLANE_OLD Older version of PLANE PRIMARY Correct for primary beam attenuation. PSC To deal with the IRAS Point Source Catalog REGRESSION Compute the linear regression from a cross histogram REGUL A regularisation deconvolution method REPROJECT Reproject an image in a different system RESTORE NIC Task RGBTOPS Convert RGB images to PostScript SELF_CAL Self-Calibrate (in some way...) a UV data set SHIFT ? SMOOTH General pattern smoothing algorithm SORT Sort a table (real version) SUM Add a large number of images SWAP Rotate or make a mirrored image of an input image TABLE Make a Table from a formatted file TRANSPOSE Transpose images TRUE_COLOR To produce true color images of (bipolar) flows. UV_ASCAL Self-calibrate (in some way...) a UV data set UV_AVERAGE Average several channels of a UV table UV_CENTER ? UV_CIRCLE ? UV_CLIP Clip UV data UV_COMPRESS Compress UV data by spectral channel averaging UV_CRASH N.A. UV_DFT Compute an image using Direct Fourier Transform (no FFT) UV_EXTRACT Extract some planes from UV data UV_FIT Fit simple functions into UV data UV_FITC Fit centered functions into UV data UV_FLAG Flag UV data UV_LIST List UV data UV_MAP Makes map from UV data using gridding + FFT UV_MERGE Merge UV data sets UV_MODEL Computes UV data from input model. UV_NOISE ? UV_SELFCAL Self-calibrate (in some way...) a UV data set UV_SHIFT Shift phase center of UV data UV_SHORT Compute short spacing from single-dish (obsolete) UV_SINGLE Compute short spacing from single-dish (recommended version) UV_ZERO Enter zero spacing UVSORT Precess and sort raw UV tables * VECTOR * To activate GILDAS tasks. 2 ASTRONOMICAL_PROCESSING PSC To deal with the IRAS Point Source Catalog REPROJECT Reproject an image in a different system FLOW A bipolar flow line-wing finding program. TRUE_COLOR Produces true color images of bipolar flows. 2 CORRELATION_ANALYSIS CORRELATE Computes correlation image of two images. HISTO_CLOUD Cross histogram of two input images (Table output) HISTO_CROSS Cross histogram of two input images (Image output) HISTO_DOUBLE Histogram of an image as a function of another HISTO_SIMPLE Histogram of an image HISTO_TABLE Cross histogram of column tables MINIMIZE Find best linear correlation between two images REGRESSION Compute the linear regression from a cross histogram 2 DISPLAY * GRAPHIC * GRAPHIC program. Uses GreG for contouring. * MAPPING * Deconvolution program. Includes GRAPHIC. Both programs include VECTOR, and thus can RUN GILDAS tasks. 2 IMAGE_ANALYSIS BACKGROUND Compute background images CIRCLE Make the circular average of an image COMBINE Combine two input images in many ways FIELD_FIND Find the fields in an image FIELD_LIST Find parameters of fields in an image PLANE Compute the plane going through three points 2 IMAGE_CONSTRUCTION BLANKING Change the blanking value CLEAN Cleaning (of data cubes). UV_DFT Slow Fourier Transform from UV to map (cubes) EXTRACT Extract a subset of an image to fill a subset of an image FILL_CUBE Resample a cube by Random or Regular interpolation FITS_GILDAS Single image disk-FITS to GILDAS translator * GFITS * FITS (disk or tape) to|from GILDAS format translator GILDAS_FITS Single image GILDAS to disk-FITS translator GRID_CUBE A gridding task to make an image from a table. GRID_EXTEND A gridding task to make an image from a table. HEADER List and modify an image header MAKE_CUBE Image reconstruction for incomplete, noisy data. MAP_AVER Average plans of a 3-D data cube. MAP_COMPRESS Compress images (by Fourier truncation) MAP_EXPAND Expand images (by Fourier expansion) MAP_INTER Resample data cubes along 3rd axis. MASK Mask part of an image. SUM Add a large number of images SWAP Rotate or make a mirrored image of an input image UV_MAP Make maps (cubes) from UV data using gridding + FFT TRANSPOSE Transpose images 2 MODEL_FITTING GAUSS_1D Multi component one-dimension gaussian fitting GAUSS_2D Single component two-dimension gaussian fitting REGRESSION Compute the linear regression from a cross histogram UV_FIT Fit simple functions into UV data UV_FITC Fit centered functions into UV data 2 SMOOTHING CV_SMOOTH Cross Validation smoothing DG_SMOOTH Conjugate Gradient smoothing GAUSS_SMOOTH Smooth by a gaussian in the Fourier plane INTERPOLATE Resample and/or smooth an image along first dimension NOISE_SMOOTH Noise smoothing enhancement SMOOTH General (small) pattern smoothing algorithm 2 TABLE_PROCESSING HISTO_TABLE Cross histogram of column of a table LIST List a table MERGE Merging of Tables SORT Sort a table (real version) TABLE Make a Table from a formatted file UVSORT Precess and Sort a raw UV table 2 UV_PROCESSING UV_ASCAL Self-calibrate (in some way...) a UV data set UV_AVERAGE Average several channels of a UV table UV_CENTER ? UV_CIRCLE ? UV_CLIP Clip UV data UV_COMPRESS Compress UV data by spectral channel averaging UV_CRASH N.A. UV_DFT Compute an image using Direct Fourier Transform (no FFT) UV_EXTRACT Extract some planes from UV data UV_FIT Fit simple functions into UV data UV_FITC Fit centered functions into UV data UV_FLAG Flag UV data UV_LIST List UV data UV_MAP Makes map from UV data using gridding + FFT UV_MERGE Merge UV data sets UV_MODEL Computes UV data from input model. UV_NOISE ? UV_SELFCAL Self-calibrate (in some way...) a UV data set UV_SHIFT Shift phase center of UV data UV_SHORT Compute short spacing from single-dish (obsolete) UV_SINGLE Compute short spacing from single-dish (recommended version) UV_ZERO Enter zero spacing UVSORT Precess and sort raw UV tables 1 END