PDF Guides Additional documentation in PDF format. SARscape Guide User's Guide for SARscape, ENVI's radar module. This manual explains the use of SARscape with the new ENVI interface. Using IDL Learn the most important aspects of IDL programming. IDL DataMiner Guide The IDL DataMiner is an Open Database Connectivity (ODBC) interface that allows IDL users to access and manipulate information from a variety of database management systems. Image Processing This book explains how to process images using IDL (Interactive Data Language). IDL is a high-level programming language that contains an extensive library of image processing and analysis routines.