| iTool User's Guide: Working with Maps |

## Inserting a Map Grid

The Insert Map Grid operation creates a longitude-latitude grid (Figure 15-7) within the current dataspace, using the current projection. If no projection is active, then IDL uses geographic coordinates.

Figure 15-7: The Map Grid

Figure 15-7: The Map Grid

The gridlines appear as a single MapGrid object within the current dataspace. For information on this visualization, see Map Grid.

Note When you insert a map grid, the Axes container within the dataspace is automatically hidden. To display the axes, use the Visualization Browser to change the Show property of the Axes container.

IDL Online Help (March 01, 2006)