= List of new features in GRASS 7 =

[[TOC]]

== Graphical User Interface ==

 * wxGUI improved (see [http://grass.osgeo.org/wiki/wxGUI here])
   * Advanced GRASS command console
   * [wiki:wxGUIDevelopment/Modeler Graphical modeler]
   * Improved [http://grass.osgeo.org/wiki/WxNviz wxNviz]
 * wxWidgets version of ximgview
 * !Tcl/Tk stuff dropped in favour of wxPython

== Display modules ==

 * old display architecture removed including related modules
 * new display architecture based on CAIRO and wxPython
 * ximgview: new

== General modules ==

 * g.cairocomp: new
 * g.ppmtopng: new
 * g.region: new flag to export region bounding box in WMS style

== Image processing ==

 * i.albedo: new
 * i.biomass: new
 * i.cca: supports now much more raster maps for canonical analyses (multi-spectral (8) -> hyper-spectral (thousands)),  converted from Fortran style to C-style
 * i.eb.eta: new
 * i.eb.evapfr: new
 * i.eb.h_SEBAL01: new
 * i.eb.soilheatflux: new
 * i.emissivity: new
 * i.evapo.time_integration: new
 * i.latlong: new
 * i.modis.qc: new
 * i.sunhours: new
 * i.vi: new
 * i.landsat.toar: new (from addons)
 * i.landsat.acca: new (from addons)
== Raster modules ==

 * r.colors.out: new
 * r.external.out: new
 * r.cost faster by orders of magnitude (10x - 100x)
 * r.neighbours: added new option to process only marked cells (i.e: selective elevation map improvement)
 * r.walk faster by orders of magnitude (10x - 1000x)
 * r.mapcalc: use pthreads for parsing
 * r.resamp.filter: new - resamples raster map layers using an analytic kernel
 * r.solute.transport: new; New module to compute the solute transport of groundwater in porous media using an implicit finite volume approach
 * r.statistics2: new
 * r.statistics3: new
 * r.uslek: new
 * r.usler: new
 * r.watershed improved from G6.3 to G6.4 to G6.5 to G7: faster, less memory, floating point DEM support, MFD, clean stream extraction from MFD, segmented mode in G7 faster than in G6 by orders of magnitude.
 * r.gwflow/r3.gwflow: Groundwater flow module update
 * Large File Support (LFS) globally enabled
 * r.pack, r.unpack: new
 * r.in.lidar: new
== Vector modules ==

 * v.krige: new
 * v.net.distance: new
 * v.net.bridge: new
 * v.net.spanningtree: new
 * v.net.flow: new
 * v.net.connectivity: new
 * v.net.timetable: new
 * v.net.components: new
 * v.net.allpairs: new
 * v.net.centrality: new
 * v.in.ogr faster for polygon-import, cleaner output.
 * v.out.ogr: reversed functionality of -c flag to preserve island by default.
 * Large File Support (LFS) globally enabled
 * v.in.lidar: new

== 3D raster modules ==

 * r3.colors: new
== Scripts ==

 * All Bash scripts converted to Python
 * Initialization scripts also based on Python

== Libccmath ==

 * new library for numerical functions

== Libdbmi ==

 * SQLite is now default database driver
 * Added support for OFTDate, OFTTime, OFTDateTime

== Libgis ==

 * WPS support implemented in parser (c, c++, python, shell)
 * Libraster separated out into own library
 * Store metadata in $HOME/.grass7 directory

== Libgmath ==

 * Implementation of blas level 1,2 and 3 functions which are in use by all gmath solver, the gpde library and many modules.
 * ATLAS wrapper for blas level 1 functions (level 2, and 3 are work in progress)

== Libosgf ==

 * WIP in OGSF - feature styling rewrite that will allow to assign custom (e.g. attribute based) style to points AND lines in NVIZ (might be extended to polys and any 3D vectors too).

== Libraster ==

 * Libraster separated out from libgis, refactored

== Libvector ==

 * Large File Support (LFS) added
 * New spatial index, and spatial index kept in file: faster queries (>10x for large vectors), less memory for opening an existing vector
 * Cleaning function 'break polygons' faster, less memory
 * Cleaning function 'snap lines' faster and modifications are minimized: a vertex is snapped to the closest anchor vertex, not to the first anchor vertex found which might not be the closest anchor vertex.
 * Simple Features API/OGR read/write support (ongoing)

== Documentation ==

 * Use Python to generate HTML docs

== API ==

 * Programmer's manual cleanup: http://grass.osgeo.org/programming7
 * Improved Python API
   * read/write GRASS rasters to/from !NumPy
 * libgis supports the automatic generation of a WPS 1.0.0 process description XML document for each module (c, c++, python, shell)

== Portability ==

 * All shell scripts have been rewritten in Python
 * MS-Windows portability improved, new spawn functions (backported to 6.5 and 6.4), global LFS available by default
 * MacOSX portability improved

== Removed modules ==

Some modules present in GRASS 6 have been removed due to architecture changes or replacements:

 * d.ask, d.colors, d.extend, d.extract, d.frame, d.mapgraph, d.measure, d.menu, d.mon, d.save, d.what.rast, d.what.vect, d.zoom (old display architecture decommissioned)
 * d.histogram: integrated in wxGUI
 * g.ask: use g.findfile
 * g.setproj: use Location Wizard or 'g.proj -c'
 * i.points: new graphical version in wxGUI
 * i.class, i.ortho.photo, i.vpoints ('''need to be ported'''; old display architecture decommissioned)
 * raster:
   * r.average, r.median, r.sum merged into r.statistics, r.statistics2, r.statistics3
   * r.bilinear merged into r.resamp.interp
   * r.digit ('''needs to be ported'''; old display architecture decommissioned)
   * r.le.patch, r.le.pixel, r.le.setup, r.le.trace: replaced by r.li.*
   * r.terraflow.short (FP version is sufficient)
 * v.digit (new wxPython digitizer)

== Renamed options ==

 * d.rast
  * catlist and vallist options merged into new values option
  * overlay flag inverted to new opaque flag
 * r.fill.dir
  * input -> elevation
  * elevation -> depressionless
 * r.basins.fill
  * c_map -> cnetwork
  * t_map -> tnetwork
  * result -> output
 * r.flow
  * elevin -> elevation
  * aspin -> aspect
  * barin -> barrier
  * flout -> flowline
  * lgout -> flowpath
  * dsout -> density
 * r.li.*
  * map -> input
 * r.out.tiff
  * -t flag -> -w
 * r.topmodel
  * belevation -> basin_elevation
 * r.uslek
  * usle_k -> output
 * r.water.outlet
  * drainage -> input
  * basin -> output
 * r.sim.sediment
  * elevin -> elevation
  * dxin -> dx
  * dyin -> dy
  * detin -> det
  * tranin -> tran
  * tauin -> tau
  * manin -> man
  * maninval -> man_value
 * r.sim.water
  * elevin -> elevation
  * dxin -> dx
  * dyin -> dy
  * rain_val -> rain_value
  * infil -> infil
  * infil_val -> infil_value
  * manin -> man
  * manin_val -> man_value
 * r.colors.stddev
  * input -> map
 * i.atcorr
  * iimg -> input
  * iscl -> range
  * ialt -> elevation
  * ivis -> visibility
  * icnd -> parameters
  * oimg -> output
  * oscl -> rescale
  * input -> map
  * input -> map
 * v.in.wfs
  * wfs -> url
  * input -> map
 * v.rast.stats
  * colprefix -> column_prefix
  * input -> map
 * g.region
  * n -> north
  * s -> south
  * e -> east
  * w -> west
  * t -> top
  * b -> bottom
 * g.pnmcomp
  * background -> bgcolor
 * d.erase
  * color -> bgcolor
  * background -> bgcolor
 * i.spectral
  * raster -> input
  * coord -> east_north
  * background -> bgcolor
 * i.fusion.brovey
  * outputprefix -> output_prefix
  * background -> bgcolor
 * i.image.mosaic
  * images -> input
  * background -> bgcolor
 * r.blend
  * output -> output_prefix
  * background -> bgcolor
 * v.what.vect
  * vector -> map
  * qvector -> qmap
  * background -> bgcolor
 * r.plane
  * name -> output
  * background -> bgcolor