# Documentation

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# Map Layout

Set the outer limits of the map, control the display of the grid of meridians and parallels, add annotations, such as a north arrow or a graphic scale

## Functions

 `framem` Toggle and control display of map frame `ingeoquad` True for points inside or on lat-lon quadrangle `gridm` Toggle and control display of graticule lines
 `angl2str` Convert angles to character array `mlabel` Toggle and control display of meridian labels `mlabelzero22pi` Convert meridian labels to 0-360 degree range `northarrow` Add graphic element pointing to geographic North Pole `plabel` Toggle and control display of parallel labels `rotatetext` Rotate text to projected graticule `scaleruler` Add or modify graphic scale on map axes

## Topics

### Globe Display

What Is the Globe Display?

The Globe display is a three-dimensional view of geospatial data capable of mapping terrain relief or other data for an entire planet viewed from space.

The Globe Display Compared with the Orthographic Projection

This example illustrates the differences between the two-dimensional orthographic projection, which looks spherical but is really flat, and the three-dimensional Globe display.

Using Opacity and Transparency in Globe Displays

This example shows how to create an opaque surface over which you can display line and point data.

Over-the-Horizon 3-D Views Using Camera Positioning Functions

You can create dramatic 3-D views using the Globe display.

Displaying a Rotating Globe

Because the Globe display can be viewed from any angle without the need to recompute a projection, you can easily animate it to produce a rotating globe.

### Map Display

The Map Frame

The Mapping Toolbox™ map frame is the outline of the limits of a map, often in the form of a box, the “edge of the world,” so to speak.

Map and Frame Limits

The Mapping Toolbox map and frame limits are two related map axes properties that limit the map display to a defined region.

Grid Spacing

To control display of meridians and parallels, set a scalar meridian spacing or a vector of desired meridians in the `MLineLocation` property.

Grid Layering

By default, the grid is placed as the top layer of any display.

Limiting Grid Lines

The Miller projection is an example in which all the meridians can extend to the poles without appearing to be cluttered.

Labeling Grids

You can label displayed parallels and meridians.

### Map Customization

North Arrows

North arrows indicate the direction of the geographic North Pole.

Inset Maps

Inset maps are often used to display widely separated areas, generally at the same scale, or to place a map in context by including overviews at smaller scales.

Graphic Scales

Graphic scales are ruler-like objects that show distances on the ground at the nominal scale of the projection.