UPP(Unit Per Pixel) value

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   In our tbp file we are defining the max visibility of each layer (mpt) to some value.Based on the zoom-in to the 3d globe the layers are visible.

How to get this information that which layer(s) is/are visible at a time?

Based on the altitude (position co-ordinate height) I tried to identify which raster layer it is . But a layer is visible at different heights for different places.

Is there any way to get Unit per Pixel value at any point on terrain at a given time? as UPP value is different for different mpt, it may be used to identify the layer visibility. 

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anshika Members Profile Send Private Message Find Members Posts Add to Buddy List Visitor Joined: December 31 2009 Status: Offline Points: 12	Post Options Post Reply Quote anshika Report Post Thanks(0) Quote Reply Topic: UPP(Unit Per Pixel) value Posted: September 10 2010 at 9:53am
	In our tbp file we are defining the max visibility of each layer (mpt) to some value. Based on the zoom-in to the 3d globe the layers are visible. How to get this information that which layer(s) is/are visible at a time? Based on the altitude (position co-ordinate height) I tried to identify which raster layer it is . But a layer is visible at different heights for different places. Is there any way to get Unit per Pixel value at any point on terrain at a given time? as UPP value is different for different mpt, it may be used to identify the layer visibility.