Support Tools
bigMapRef - Similar to bigmap, but allows the user to fix the coordinate frame of the desired bigmap. This is done by specifying the name of a map or bigmap to take the coordinate frame from at the beginning of the bigmap in-file. This is a necessary prerequisite if you wish to compare 1D "traces" of two or more maps.
buildShape.sh - Useful script for building a shape model using "standard" methods. This script runs dumber and densify and needs to be updated before each use to ensure proper naming of the shape files and proper paths. Since the process for building a shape is almost always the same, having a script that runs standard options and can be altered as needed is very beneficial.
compMap - This will take two .MAP files as input and will output a file with the cell by cell difference of height values. This program will also output a few other stats such as max and min deviation, and an RMS value for the deviations. This is a "quick and dirty" look at the difference between .MAP files, and does not account for any geometry, only relative deviations between the files.
compMapVec - Same as compMap, but compMapVec adds the radius magnitude of the .MAP center point to each height value to make the differences more meaningful. This way maplet center points, which by default have a height value of 0, will no longer cause the saved differences to be skewed.
diffShape - Very quick tool to compare two ICQ shape files and give an approximate RMS deviation between them. This tool assigns heights to a grid and subtracts the the two grids. This method, while very fast, does not account for surface area causing each grid cell to be of equivalent size regardless of
diffShape60 - Same as diffShape, only limiting the RMS calculation to the central 120 degrees latitude (-60,60) which corresponds to approximately 86% of the surface (sphere).
displayLandmark - This will create found.pgm which is an image of a bigmap with the coverage of a specific maplet highlighted so that its location is easily visible. There is also an output to the screen which tells you where the center of the maplet is in bigmap pixels, as well as the range of coverage of the maplet in bigmap pixels. A file called view.dat is also created, but I have no idea what it is or what to do with it.
dumpMapHeaders - Very useful tool to output a maplet or bigmap header information to screen. This is a quick way to see a map's Qsize, scale, body-fixed central vector, and map center orthonormal basis defining the map plane and normal vector. This program uses the SPC subroutine READ_MAP, which reads in all of the height and albedo values from the map as well, which is unnecessary overhead but most likely is not important. There is a subroutine called READ_HEADER which appears at first glance to skip the height and albedo values, which might be worth using instead eventually. Another important note is that there is an assumption that any map you feed into dumpMapHeaders is located in the MAPFILES/ directory. It may be worth altering to allow for a path to be specified to any .MAP file (still being discussed).
flatMap - Used to convert a map to a matrix text file where each entry is the relative height in map pixels from the plane defined through the map center point. There is also an output to the screen which will tell you the maximum height, minimum height (if it is below 0, the height of the map center), and the number of points that have a "zero" height across the map. The number of elements in the output text file is equal to (2*Qsize+1)^2.
flatMapVec - Like flatMap, but uses the same logic as compMapVec by multiplying each height value from the map by the map scale and adding the magnitude of the radius to convert them into physical units (meters in this case). This means all values in the output text file are no longer relative heights in map pixels, but instead approximated full height values at each point. There is likewise an output to the screen that now tells the map maximum and minimum height, but there is a mistake in the code which means the number of "zero heights" will always be zero. This is not too important in this case because a "zero" here just means that the height value was filled with the magnitude of the map central vector.
mambo5.py - This python script will generate polar plots of spacecraft and sun locations with respect to a specific landmark location. This is run for one landmark at a time and uses many input files generated by a separate bash script.
updateDisplay - Script that should be run in the background to continually update images on a web server. This allows us to easily view and align images while creating and fixing landmarks in lithos as well as check alignment while using register.