title | date | layout | author |
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GRASS GIS 7 Addons Manuals online |
2014-01-04 11:36:11 +0100 |
news |
Admin |
GRASS GIS 7 Addons Manuals now generated on a weekly basis
In order to make the manuals more accessible prior to installation, the GRASS GIS 7 Addons Manuals are now generated online every week.
Installation of these user contributed Addons can be done easily with g.extention within a GRASS GIS session (either through the graphical user interface or via command line). No special administrator rights are needed.
Current Addons include:
- Image processing:
- Canny edge detector
- Histogram matching of several images
- Suite to import MODIS satellite data into GRASS GIS
- Thermal map analysis to determine Growing Degree Days, Winkler index, Biologically Effective Degree Days, Huglin Heliothermal index
- Statistics:
- linear regression on time series series
- Approximate a periodic time series and creates approximated output.
- Terrain analysis:
- Runs r.sun in loop for given time range
- Calculate geomorphons (terrain forms) and associated geometry using machine vision approach
- Hydrological conditioning of DEMs, sink removal to a required input elevation map
- Creates a local relief model from elevation map
- Vector analysis:
- Create a 3D vector map from a PLY file and export to PLY format
- Imports PLY points, georeferences and exports them
- Calculation of center points for point clouds, lines and areas
- Create concave hull shapes around points
- Create transect lines or quadrilateral areas at regular intervals perpendicular to a polyline
For in depth details, see also https://grasswiki.osgeo.org/wiki/AddOns/GRASS_7