Changes between Version 48 and Version 49 of Grass7/NewFeatures74


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Timestamp:
Nov 11, 2017, 8:42:33 AM (6 years ago)
Author:
veroandreo
Comment:

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  • Grass7/NewFeatures74

    v48 v49  
    1515
    1616After almost 1 year of development the new stable major release GRASS GIS 7.4 is available. Efforts have concentrated on making the user experience even better, providing many small, but useful additional functionalities to modules and further improving the graphical user interface. Several modules were migrated from addons to the core GRASS GIS package and the suite of tools for ortho-rectification was reimplemented in the new GRASS 7 GUI style. In order to support the treatment of massive datasets, new compression algorithms were introduced and NULL file are now also compressed by default.
     17
    1718=== Releases ===
    1819
    19  * See list here: ~~[wiki:Release/7.4.0-News]~~
     20 * See list here: [wiki:Release/7.4.0-News]
    2021
    2122== Graphical User Interface ==
     
    122123=== Imagery modules ===
    123124
    124 New:
    125 
    126  * G7:i.segment: new mean shift algorithm
    127  * G7:i.atcorr: added support for Pleiades1a, Pleiades1b, Spot6, Spot7, Sentinel-2A, Rapideye, Worldview3
    128  * G7:i.modis.qc: Added mod09GA QA definitions
     125G7:i.atcorr now includes support for the atmospheric correction of 7 new satellite images: Pleiades1a, Pleiades1b, Spot6, Spot7, Sentinel-2A, Rapideye, Worldview3 and mod09GA QA definitions was added to G7:i.modis.qc. In addition to the already existent region growing algorithms, G7:i.segment now also includes mean shift.
    129126
    130127=== Temporal GIS modules ===
     
    143140== GRASS 7 Library changes ==
    144141
    145  * Temporal framework:
    146    * Implemented temporal algebra complement tests that show the current condition bugs
    147    * Added spatial topological operators to the temporal algebra (r71369)
    148    * Tests regarding implicit temporal aggregation
    149    * improved gran_to_gran function to return correctly years and second values
    150    * added function to convert granularity to a smaller granularity
    151    * Enabled raster region specific parallel processing by using the MultiModule class
    152  * projlib:
    153    * improved integration of GDAL and streamlining of spatial reference system handling
    154    * added GPJ_grass_to_wkt2() and GPJ_grass_to_osr2()
    155    * improve creating new spatial reference from embedded proj4 definition
    156  * python vector scripting library:
    157    * added layer variable to vector_info and vector_info_topo functions
    158  * libgis:
    159    * G_window_percentage_overlap() now accounts for N == S or E == W
    160    * new G_adjust_window_ll() to automatically fix lat/lon errors
    161    * relax ll restrictions when reading DMS coords
    162    * support for HTML/CSS hash hexadecimal colors in G_str_to_color()
    163    * G_compare_projections(): compare unit names only if there is no to meter conversion factor
    164    * speed improvement for bzip2 compression
    165    * ignore case when comparing units in G_compare_projections()
    166    * G_compare_projections(): enhance ellipsoid check, combine standard parallels
    167  * rasterlib:
    168    * fix/improve Rast_align_window()
    169  * simlib:
    170    * more control over seeding for random number generator
     142In the past year of development, there were several changes in different GRASS GIS libraries. The most relavant changes are described below:
     143 * In the rasterlib there is now NULL file compression by default.
     144 * The temporal framework has now support for spatial topological operators to the temporal algebra, several tests were added as well as a new function to convert granularity to a smaller granularity, and raster region specific parallel processing has been enabled by means of the MultiModule new class in PyGRASS.
     145 * projlib now provides improved integration of GDAL and streamlining of spatial reference system handling, as well as new functions (GPJ_grass_to_wkt2 and GPJ_grass_to_osr2)
     146 * libgis has received several major and minor enhancements. There are new functions such as G_adjust_window_ll to automatically fix lat-lon errors and the lat-lon restrictions when reading DMS coords were relaxed. On the other hand, G_window_percentage_overlap now accounts for N == S or E == W. The function G_compare_projections has an enhanced ellipsoid check. Moreover, BZIP2 compression has been improved for speed and support for HTML/CSS hash hexadecimal colors has been added in G_str_to_color.
    171147
    172148== Source Code Portability ==
     
    184160 * see [wiki:Grass7/NewFeatures#Replacedandremovedmodules here] for removed modules and renamed modules
    185161 * see [wiki:Grass7/NewFeatures#Optionschanges here] for renamed options
    186