#1980: Multiple time stamp support for raster and 3D raster maps
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Reporter: huhabla | Owner:
grass-dev@…
Type: enhancement | Status: new
Priority: normal | Milestone:
7.0.0
Component: LibGIS | Version:
svn-trunk
Keywords: timestamp, multiple, temporal, category, layer | Platform: All
Cpu: All |
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Hi,
i would like to implement the support of multiple timestamps for single
raster and 3D raster maps in libgis and the temporal framework. Multiple
timestamps are already possible for vector maps. The layer identifier
(number or string) of a vector map is also used to specify the layer/table
specific timestamp. Hence several timestamp files are located in a vector
directory using the naming scheme "timestamp_$layer".
The same can be implemented for raster and 3D raster maps. The timestamp
files will be located in cell_misc/raster_map using the same naming scheme
as vector maps. Backward compatibility will be assured. Hence the default
timestamp file has no layer extension and the layer definition is
optional.
In the future we can use the raster "layer" concept to point to different
category definitions.
I would like to use the definition "layer" also for the raster maps. I
hope this is not to much confusing for users? IMHO basically its the same
concept as for vector maps, instead of a pointer to a different table, the
layer for raster maps points to a different category definition?
For now implementing multiple timestamp support is sufficient for me.
Multiple category support can be planned for GRASS8? However, the naming
scheme should be usable for further improvements.
Any suggestions are welcome.
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Ticket URL: <http://trac.osgeo.org/grass/ticket/1980>
GRASS GIS <http://grass.osgeo.org>
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