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Map Grids

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Maptitude country packs include a number of vector grid layers that can be used. These grids are aligned with the coordinate system and are intended as guidelines. A cartographer might also call them reticules.

Maptitude can also create a custom vector grid layer to an arbitrary spacing. The grid can be made of area, line, or point (which indicate the grid cross points) features; and it can be defined in terms of the current coordinate system or geographic longitude/latitude coordinates.

The create a new vector grid layer, select Tools->Geographic Utilities->Create Vector Grid on the main menu, to display the Create Vector Grid dialog box:

The Create Vector Grid dialog box

The Create Vector Grid dialog box

The Layer Settings determine the new layer’s name and type. Additional points can be added to the new feature (shape) definitions. These are useful for large grids where additional points can result in a more accurate grid.

Method and Grid Settings determine how the grid is specified. Here we have specified a 2ºx2º grid that covers the map area. You can also define the grid in terms of the numbers of cells; or the origin, grid spacing, and number of cells.

Here is the resulting grid:

The new grid displayed over Texas and surrounding states.

The new grid displayed over Texas and surrounding states.

As the grid is a standard Maptitude layer, you can easily modify the theme to suit your needs. The layer could also be JOINed to your own data view, enabling custom coloring. For example, each grid cell could display a color according to demographics within that cell.

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