PDS MAP-A-PLANET Help Page
Scale and Resolution

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Scale and Resolution:
SCALE or RESOLUTION define the resolution desired for the image to be created by Map-A-Planet. Resolution (or Scale) indicates the size of an image pixel with respect to the actual ground distance represented by the pixel. For Map-A-Planet, Scale units are expressed as kilometers per pixel (kilometers/pixel) and Resolution units are expressed as pixels per degree (pixels/degree).

Indicate the desired units by selecting from the "pop-down-menu", then enter the desired scale/resolution value in the entry field provided. An entry of 32 with "pixels/degree" units selected results in an image with a resolution such that each degree of longitude is represented by 32 image pixels. An entry of 10 with "kilometers/pixel" units selected results in an image with a resolution such that each image pixel represents a ground distance of 10 kilometers.

When entering values for SCALE/RESOLUTION, keep in mind the following information regarding the highest (maximum) image resolution available for various data sets;

Highest resolutions available for currently supported data sets:

moon_clementine_bw      303 	pixels/degree
	                .1 	kilometers/pixel

mars_viking_bw (MDIM1)   256	pixels/degree
	                .2314   kilometers/pixel
v2mars_viking_bw (MDIM2)256	pixels/degree
	                .2314   kilometers/pixel
mars__viking_color    	64	pixels/degree
	                .9254   kilometers/pixel
mars_viking_merged	64	pixels/degree
	                .9254   kilometers/pixel

venus_magellan_fmap     1408	pixels/degree
	                .075	kilometers/pixel

callisto_galileo_bw     42	pixels/degree
	                .9974   kilometers/pixel









  
  
  

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