The ESP help system is available from the UNIX shell like any other ESP command. To get help type:
If this does not generate a screen similar to:
ESP ESP (standing for Extended Surface Photometry) is a package of routines that deal with various aspects of obtaining galaxy profiles. They may be subdivided thus: ELLPRO, ELLFOU, GAUFIT, SECTOR - Profile generation. HISTPEAK, LOBACK and HSUB - Background determination. FASTMED, MASK, SKEW and TOPPED - Image preparation. GRAPHS - Presentation of results. CORR, SELFC, SELFCW and MIXUP - Object detection/enhancement. Additional information available: CORR ELLFOU ELLPRO FASTMED GAUFIT GRAPHS HISTPEAK HSUB LOBACK MASK MIXUP SECTOR SELFC SELFCW SKEW TOPPED Topic?
then contact your system manager.
The help system is functionally similar to that found on DEC VAX machines. So replying to the query `Topic?' with, for example, `loback' generates another level of help:
LOBACK Establishes the local mode values for parts of an image. Usage: LOBACK IN INFILE SFACT THIRD OUT WIDE Description: Establishes the local mode values for parts of an image immediately surrounding a set of image co-ordinates supplied by the user. The user may also supply some indication of the number of pixels that must be used to create the pixel value histogram. This value may be supplied as the width of the square area around the co-ordinates that will be used, or alternatively the number of contiguous data points believed to be present in the object at the image location specified. The latter method is intended specifically for use with RGASP's IMAGES or IRAF's FOCAS output files. All co-ordinates are read from a two or three columns ASCII text file. If two columns are present then these are taken as representing the image co-ordinates required for the regions of the image to be considered. Co-ordinates are in the Current coordinate system of the NDF. If three columns are present the third column respresents the width of the area to be sampled or the number of contiguous pixels detected there by FOCAS or IMAGES. The selection of the number of pixels to used in the histogram is defined by the user subject to a lower limit of 1024 pixels (32x32). Additional information available: Parameters Examples Notes Authors History LOBACK Subtopic?
ESP --- Extended Surface Photometry