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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

camposmSet camera position using geographic coordinates
camtargmSet camera target using geographic coordinates
camupmSet camera up vector using geographic coordinates
daspectmControl vertical exaggeration in map display
demcmapColormaps appropriate to terrain elevation data
lightmProject light objects on map axes
meshlsrm3-D lighted shaded relief of regular data grid
shaderelConstruct cdata and colormap for shaded relief
surflm3-D shaded surface with lighting on map axes
surflsrm3-D lighted shaded relief of geolocated data grid
surfacemProject and add geolocated data grid to current map axes
zdatamAdjust z-plane of displayed map objects

Topics

Shade and Light Terrain Maps

Lighting a Terrain Map of a Region

This example shows how to add lighting and shading to terrain maps, and how to set the surface reflectance properties.

Lighting a Global Terrain Map

This example shows how to illuminate a globe display with multiple lighting sources of different colors.

Surface Relief Shading

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

Colored Surface Shaded Relief

This example shows how to illuminate surface texture over colored elevation data using shaded relief computations.

Relief Mapping with Light Objects

This example shows how to illuminate surface texture over colored elevation data using a light source.

Colormaps for Terrain Data

Colormaps are ordered progressions of colors vary with elevation or depth. Some colormaps use colors that clarify the land-sea interface.

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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