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TBC, did not work on my machine early 2017.

3) Generate your HiPS from a planetary cartesian map thanks to Hipsgen CDS tool 

(from P. Fernique, 9/7/2019,

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tutorial at 2nd Europlanet Planetary Mapping Workshop)

A tutorial concerning the generation of planetary HiPS from global CAR maps in JPEG, PNG or TIFF. This is the same method used by the CDS for 95% of the planeto HiPS available today. Notice that if you have them in FITS (via Chiara Marmo PDS2FITS conversion for instance) you can directly apply the regular Hipsgen method described here.

(Warning: this tutorial uses undocumented Hipsgen parameter)
P.Fernique - 2nd of July 2019 -

1) You need a cartesian map in JPEG, PNG format covering the whole body (or sky)
   Rq: if you have it in TIFF see 4
   
2) You need to generate a World Coordinate System (WCS) solution for you map.
   It is a small ASCII file with the same name and the .hhh extension containing the
   WCS solution of your image:
   
ex: Cartesian hhh file content for a 2880x1440 map
   
NAXIS1  = 2880          // ImageWidth
NAXIS2  = 1440          // ImageHeight
CRPIX1  = 1440          // ImageWidth/2          => central pixel x coord
CRPIX2  = 720           // ImageHeight/2         => central pixel y coord
CRVAL1  = -0.0625       // -(360/imageWidth)/2   => longitude of the central pixel
CRVAL2  = -0.0625       // -(180/imageHeight)/2  => latitude of the central pixel
CTYPE1  = RA---CAR
CTYPE2  = DEC--CAR
CD1_1   = 0.125         //  360/imageWidth       => pixel resolution
CD1_2   = 0
CD2_1   = 0
CD2_2   = 0.125         //  180/ImageHeight       => pixel resolution

   a) you can do that manually via any ASCII editor
   b) Or programmatically thanks to Hipsgen.jar itself. In this last case,
   just launch this kind of command:  
   java -jar Hipsgen.jar -hhh="path/FileName widthxheight"

   ex: java -jar Hipsgen.jar -hhh="path/Titan.jpg 2880x1440"
   
   Note: if your longitude origin is not localized at the central pixel line of your map, you can add its x coordinate as a third parameter (ex: java -jar Hipsgen.jar -hhh "path/Titan.jpg 2880x1440 0")  
   
3) After that you can generate your HiPS by this kind of command
    java -jar Hipsgen.jar in=path out=MyHips id="YourAUTH/P/Titan" color=jpg
    
Rq: you can also do steps 2 and 3 in one unique Hipsgen command
java -jar Hipsgen.jar -hhh="path/Titan.jpg 2880x1440" in=path out=MyHips id="YourAUTH/P/Titan" color=jpg
   
4) If your original image is really big, and/or in TIFF format, it is preferable to convert and to split it in a collection of small JPEG subimages before launching Hipsgen process. ImageMagick toolkit (free on Linux) does that magically thanks to this command:
convert srcImage.tif -crop widthCellxheightCell +repage TargetDir/GenericName.jpg
It is better to have subimages with the same size (one divisor factor of the source image)

ex :
convert Lunar_LRO_LROC-WAC_Mosaic_global_100m_June2013.tif -crop 10112x10112 +repage SplitImg/Moon.jpg

And thus, launch Hipsgen.jar with -hhh parameter with one additional parameter as size of subimages

ex:
java -jar Hipsgen.jar -hhh="SplitImg/Moon.jpg 92160x40448 10112x10112"

or in one Hipsgen command like this:

java -jar Hipsgen.jar hhh="SplitImg/Moon.jpg 92160x40448 10112x10112" in="SplitImg" creator_did="XXX/P/Moon/LROC-WA-GLD100-118m" -f color=jpg

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