Geography Reference
In-Depth Information
View three-dimensional surfaces in perspective from multiple observer points.
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View scenes differently by changing the shading, transparency, and illumination properties of 3-D
layers.
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Change the “Z” visual component of 3-D scenes (exaggerate the vertical).
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Create surface models from rasters and TINs.
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Make queries on raster values.
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Get instantaneous information about the elevation, slope, and aspect of TINs.
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Create contours of surfaces.
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Find the steepest path on a surface.
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See a surface under different levels of illumination.
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Calculate the volume between a horizontal plane and three-dimensional surface specified by a TIN.
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Determine what parts of a landscape can be seen from various vantage points.
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Draw lines of sight across landscapes.
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Create a 2-D cross-section profile graph of a 3-D surface, given a line across the surface.
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Create 3-D features from 2-D data.
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Digitize 3-D features.
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Extrude 3-D features from 2-D features.
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Simulate “flying through” a landscape, using animation capabilities
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ArcGlobe
The other software package in 3D Analyst is ArcGlobe—a startlingly effective piece of software that
ought to be used in every elementary school in the nation. ArcGlobe is to a manual globe what ArcMap is
to a paper map. It is a software lever that gives you an intellectual advantage in looking at the world.
With ArcGlobe you can
Get marvelous views of the Earth, rotating and panning its surface
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Add large data sets which are made part of the Earth's surface, correctly placed regardless of their
coordinate systems.
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Automatically spin the globe around its axis, looking from any vantage point.
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Measure distances along great circle routes.
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Rotate an image either around the center of the Earth or around the center point of the image—doing
global or local navigation.
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Make animations of the images you generate.
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Again, the capabilities of 3D Analyst are best experienced rather than described. You do that next.
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