Hi there,
I have followed the proposed tutorial about DEM (http://gazebosim.org/tutorials?tut=dem&cat=build_world) and I successfully obtained a DEM of the vulcain: the file mtsthelens_129.dem called by volcano.world is of type .dem, and the simulation works fine.
Now I am trying to create a DEM of a portion of Mars surface, so
I downloaded a .img file containing the raster data of Mars surface (this is the link: http://pds-geosciences.wustl.edu/mgs/mgs-m-mola-5-megdr-l3-v1/mgsl_300x/meg004/megt90n000cb.img)
Note that there is an associated .lbl file at this link http://pds-geosciences.wustl.edu/mgs/mgs-m-mola-5-megdr-l3-v1/mgsl_300x/meg004/megt90n000cb.lbl, but I don't know how to use it.
Then I created a .world file, but when I run the simulation the following error occurs:
ERROR 4: `/usr/share/gazebo-11/media/dem/megt90n000cd.img' not recognized as a supported file format. Errore di segmentazione (core dump creato)
However, I believe that Gazebo can realize DEM models using a file whose format is not necessarily .dem, according to what is said in the tutorial:
Currently, Gazebo only supports raster data in the supported formats available in GDAL
These formats are listed in this page: https://gdal.org/. In particular I am interested in the PDS – Planetary Data System v3; about PDS files, in the GDAL web page can be found that:
PDS files often have the extension .img, sometimes with an associated .lbl (label) file. When a .lbl file exists it should be used as the dataset name rather than the .img file
but I don't know what does it mean.
My question is: can I use files whose format is different from .dem in order to create a DEM? Can I convert a .img file containing raster data in a .dem one?
Could anyone please help me? Thanks a lot in advance!!
