#Idl language how to#

This tutorial assumes that you are working in a directory named idl, that IDL programs are in a subdirectory named pro, and that data is in a subdirectory named dat. This tutorial is organized as a set of examples with explanations. There is also a graphical IDL development environment available using the command вЂњidldeвЂќ which we will not discuss in this tutorial. There is an efficient command interpreter for interactive use, as well as the option of developing scripts which may be interpreted or compiled. IDL can be used interactively or in вЂњbatchвЂќ mode. IDL is a mature, robust, commercial package sold by Visual Information Systems. IDL (Interactive Data Language) is a general purpose scientific computing package which provides a suite of mathematical functions, data analysis tools, as well as some scientific visualization and animation tools. Why do my graphics get erased? When a window gets covered, then uncovered, someone has to keep a copy of the obscured part of the image.

#Idl language how to#

Animation Example animation Hardcopy How to save your images to a postscript file. Surface plots Examples of surface plots of functions of two variables. Variables and arithmetic Examples of setting scalar, vector, and array variables, and performing some basic operations. Programs and batch mode IDL can be run by typing commands interactively, by creating programs interactively, by reading programs in from files, or it can be run in batch mode. Getting started A few basic hints that will help you get started with the command line interface. Table of Contents Introduction A brief introduction, with links to help you get idl running on your display.