| iTool User's Guide: Working with Contours |

## Introduction

The IDL iContour tool allows you interactive access to contour data. You may visualize contours and then modify and manipulate those contours in the ways that you need.

The IDL iContour tool displays your data as contours and allows you great flexibility in manipulating and visualizing these contours. The iContour tool can be used for irregular or regular grid data. Irregularly-grid data arranged as three fields (three one-dimensional vectors) are gridded by a Gridding Wizard if this data is imported into the iTool. Regular grid data arranged as a two-dimensional array is directly imported.

To use iContour from the IDL Command Line, type iContour. An empty iContour tool appears. You can then import contour data using any of several data import methods. For more information on importing contour data, see Importing and Exporting Data.

Note For more information on accepted arguments and keywords, see ICONTOUR.

The iContour tool can be launched in the following ways:

- At the IDL Command Line without arguments or keywords

- At the IDL Command Line with arguments and keywords

- Through the File New Visualization iContour menu option in the IDL Development Environment

- Through the File New iContour menu option in an existing iTool

IDL Online Help (March 01, 2006)