shape_coverage

Description

shape_coverage is used to show how many maplets are on the shape model.

It produces a text file called COVERAGE.TXT that indicates where a particular shape model is covered by maplets meeting specific criteria. The fourth column in COVERAGE.TXT is an "albedo" that correlates with the number of maplets covering that location. COVERAGE.TXTshape_coverage is often used as an input into shape2mapsA. view_shapeA can then be used to visualize the coverage on the shape.

Input Files

• SHAPEFILES/SHAPE.TXT. This could be SHAPE.TXT or some other shape model (e.g., SHAPE1.TXT, etc.)

• DNS_LIST.TXT

• LMRKLISTR.TXT

• LMKRLIST.TXT

• DNS_IGNORE.TXT

• /MAPFILES

Shape_coverage will read the files DNS_LIST.TXT, LMRKLISTR.TXT, and DNS_IGNORE.TXT if they exist. Maplet coverage will only be shown on the shape only if a maplet is present in the list being used. In order of precedence, it goes DNS_LIST.TXT, LMRKLISTR.TXT, LMRKLIST.TXT. If DNS_IGNORE.TXT exists, shape_coverage will not show the locations of any maplets on that list, regardless of whether they meet the other criteria or appear in LMRKLIST.TXT, DNS_LIST.TXT, or LMRKLISTR.TXT.

Output Files

• SHAPEFILES/COVERAGE.TXT

Using shape_coverage

1. Run shape_coverage.

Provide the full path to the shape model and the search parameters: smin smax tol minpic

shape_coverage
SHAPEFILES/SHAPE.TXT
0 .010 .1 0

• smin is the minimum maplet scale in km you wish to include
• smax is the maximum maplet scale in km you wish to include

• tol is a search range along surface normal (i.e., how far to search for a maplet; same idea as densify). Units are in km.

• minpic in the minimum number of pictures. If set to 0, then all maplets will be considered.

2. Use COVERAGE.TXT as an input to shape2mapsA

shape2mapsA
SHAPEFILES/COVERAGE.TXT

3. Use view_shapeA to visualize the coverage on the shape. Note that if you only run view_shape, you will not see the coverage.