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3-D Map Display

Create 3-D map of elevation data; drape image over terrain data; customize shading and lighting

Functions

camposm Set camera position using geographic coordinates
camtargm Set camera target using geographic coordinates
camupm Set camera up vector using geographic coordinates
daspectm Control vertical exaggeration in map display
demcmap Colormaps appropriate to terrain elevation data
lightm Project light objects on map axes
meshlsrm 3-D lighted shaded relief of regular data grid
shaderel Construct cdata and colormap for shaded relief
surflm 3-D shaded surface with lighting on map axes
surflsrm 3-D lighted shaded relief of geolocated data grid
surfacem Project and add geolocated data grid to current map axes
zdatam Adjust z-plane of displayed map objects

Topics

Shade and Light Terrain Maps

Lighting a Terrain Map Constructed from a DTED File

This example shows how to add lighting to terrain maps using the lightm function.

Lighting a Global Terrain Map with lightm

This example shows how to create a global topographic map and add a local light.

Surface Relief Shading

A shaded-relief map models illumination over a surface to highlight the texture of the surface.

Colored Surface Shaded Relief

A colored shaded-relief map combines illumination of surface texture with color based on elevation data.

Relief Mapping with Light Objects

In the exercise Lighting a Global Terrain Map with lightm (Mapping Toolbox), you created light objects to illuminate a Globe display.

Colormap for Terrain Data

Colors and colorscales (ordered progressions of colors) are invaluable for representing geographic variables on maps, particularly when you create terrain and thematic maps.

Drape Data on Elevation Maps

Draping Data on Elevation Maps

Using shading and color to combine surface relief with other surface characteristics to make bivariate maps

Drape Geoid Heights Over Topography

This example shows the figure of the Earth (the geoid data set) draped on topographic relief (the topo data set).

Combine Dissimilar Grids by Converting Regular Grid to Geolocated Data Grid

This example shows how to combine an elevation data grid and an attribute (color) data grid that cover the same region but are gridded differently.

Drape Geolocated Grid on Regular Data Grid via Texture Mapping

This example shows how to create a new regular data grid that covers the region of the geolocated data grid, then embed the color data values into the new matrix.

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