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Merge pull request #2628 from medspx/work_vnet_processing
[Feature][Processing] GRASS v.net modules
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‎python/plugins/processing/algs/grass7/CMakeLists.txt

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@@ -2,5 +2,7 @@ FILE(GLOB PY_FILES *.py)
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FILE(GLOB OTHER_FILES grass7.txt)
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FILE(GLOB DESCR_FILES description/*.txt)
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ADD_SUBDIRECTORY(ext)
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PLUGIN_INSTALL(processing algs/grass7 ${PY_FILES} ${OTHER_FILES})
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PLUGIN_INSTALL(processing algs/grass7/description ${DESCR_FILES})

‎python/plugins/processing/algs/grass7/Grass7Algorithm.py

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‎python/plugins/processing/algs/grass7/description/v.net.alloc.txt

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v.net.alloc
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Allocates subnets for nearest centers (direction from center)
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Vector (v.*)
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ParameterVector|input|Input vector line layer (arcs)|1|False
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ParameterVector|points|Centers point layer (nodes)|0|False
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ParameterNumber|threshold|Threshold for connecting centers to the network (in map unit)|0.0|None|50.0|False
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*ParameterString|center_cats|Category values|1-100000|False|False
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*ParameterSelection|arc_type|Arc type|line;boundary;line,boundary|2
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*ParameterTableField|arc_column|Arc forward/both direction(s) cost column (number)|input|0|True
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*ParameterTableField|arc_backward_column|Arc backward direction cost column (number)|input|0|True
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*ParameterTableField|node_column|Node cost column (number)|points|0|True
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*ParameterBoolean|-g|Use geodesic calculation for longitude-latitude locations|False|True
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OutputVector|output|Network_Alloc

‎python/plugins/processing/algs/grass7/description/v.net.allpairs.txt

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v.net.allpairs
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Computes the shortest path between all pairs of nodes in the network
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Vector (v.*)
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ParameterVector|input|Input vector line layer (arcs)|1|False
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ParameterVector|points|Centers point layer (nodes)|0|False
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ParameterNumber|threshold|Threshold for connecting centers to the network (in map unit)|0.0|None|50.0|False
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*ParameterString|cats|Category values|1-10000|False|False
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*ParameterString|where|WHERE condition of SQL statement without 'where' keyword'||True|False
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*ParameterTableField|arc_column|Arc forward/both direction(s) cost column (number)|input|0|True
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*ParameterTableField|arc_backward_column|Arc backward direction cost column (number)|input|0|True
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*ParameterTableField|node_column|Node cost column (number)|points|0|True
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*ParameterBoolean|-g|Use geodesic calculation for longitude-latitude locations|False|True
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OutputVector|output|Network_Allpairs

‎python/plugins/processing/algs/grass7/description/v.net.arcs.txt

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v.net
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v.net.arcs - Creates arcs from a file of points
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Vector (v.*)
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ParameterVector|points|Input vector point layer (nodes)|0|False
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ParameterFile|file|Name of input arcs file|False|False
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Hardcoded|operation=arcs
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OutputVector|output|Arcs

‎python/plugins/processing/algs/grass7/description/v.net.articulation.txt

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v.net.bridge
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v.net.articulation - Computes articulation points in the network
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Vector (v.*)
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ParameterVector|input|Input vector line layer (network)|1|False
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Hardcoded|method=articulation
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*ParameterTableField|arc_column|Arc forward/both direction(s) cost column (name)|input|0|True
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*ParameterTableField|arc_backward_column|Arc backward direction cost column (name)|input|0|True
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OutputVector|output|Articulation

‎python/plugins/processing/algs/grass7/description/v.net.bridge.txt

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v.net.bridge
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Computes bridges in the network.
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Vector (v.*)
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ParameterVector|input|Input vector line layer (network)|1|False
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Hardcoded|method=bridge
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*ParameterTableField|arc_column|Arc forward/both direction(s) cost column (name)|input|0|True
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*ParameterTableField|arc_backward_column|Arc backward direction cost column (name)|input|0|True
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OutputVector|output|Bridge

‎python/plugins/processing/algs/grass7/description/v.net.centrality.txt

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v.net.centrality
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Computes degree, centrality, betweeness, closeness and eigenvector centrality measures in the network.
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Vector (v.*)
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ParameterVector|input|Input vector line layer (network)|1|False
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ParameterString|degree|Name of degree centrality column|degree|False|True
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ParameterString|closeness|Name of closeness centrality column|closeness|False|True
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ParameterString|betweenness|Name of betweenness centrality column||False|True
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ParameterString|eigenvector|Name of eigenvector centrality column||False|True
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*ParameterNumber|iterations|Maximum number of iterations to compute eigenvector centrality|1|None|1000|True
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*ParameterNumber|error|Cumulative error tolerance for eigenvector centrality|0.001|None|0.1|True
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*ParameterString|cats|Category values||False|True
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*ParameterString|where|WHERE conditions of SQL statement without 'where' keyword||True|True
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*ParameterTableField|arc_column|Arc forward/both direction(s) cost column (number)|input|0|True
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*ParameterTableField|arc_backward_column|Arc backward direction cost column (number)|input|0|True
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*ParameterBoolean|-a|Add points on nodes|True|True
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*ParameterBoolean|-g|Use geodesic calculation for longitude-latitude locations|False|True
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OutputVector|output|Network_Centrality

‎python/plugins/processing/algs/grass7/description/v.net.components.txt

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v.net.components
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Computes strongly and weakly connected components in the network.
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Vector (v.*)
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ParameterVector|input|Input vector line layer (network)|1|False
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ParameterSelection|method|Type of components|weak;strong|0|False
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*ParameterTableField|arc_column|Arc forward/both direction(s) cost column (number)|input|0|True
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*ParameterTableField|arc_backward_column|Arc backward direction cost column (number)|input|0|True
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*ParameterBoolean|-a|Add points on nodes|True|True
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OutputVector|output|Network_Components_Line
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OutputVector|output_point|Network_Components_Point

‎python/plugins/processing/algs/grass7/description/v.net.connect.txt

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v.net
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v.net.connect - Connects points to nearest arcs in a network
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Vector (v.*)
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ParameterVector|input|Input vector line layer (arcs)|1|False
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ParameterVector|points|Input vector point layer (nodes)|0|False
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Hardcoded|operation=connect
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ParameterNumber|threshold|Threshold for connection distance|None|None|50.0
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*ParameterBoolean|-s|Snap points to network|False
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OutputVector|output|Network

‎python/plugins/processing/algs/grass7/description/v.net.connectivity.txt

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v.net.connectivity
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Computes vertex connectivity between two sets of nodes in the network.
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Vector (v.*)
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ParameterVector|input|Input vector line layer (network)|1|False
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ParameterVector|points|Input vector point layer (first set of nodes)|0|False
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ParameterNumber|threshold|Threshold for connecting centers to the network (in map unit)|0.0|None|50.0|False
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ParameterString|set1_cats|Set1 Category values||False|True
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ParameterString|set1_where|Set1 WHERE conditions of SQL statement without 'where' keyword||True|True
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ParameterString|set2_cats|Set2 Category values||False|True
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ParameterString|set2_where|Set2 WHERE conditions of SQL statement without 'where' keyword||True|True
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*ParameterTableField|arc_column|Arc forward/both direction(s) cost column (number)|input|0|True
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*ParameterTableField|arc_backward_column|Arc backward direction cost column (number)|input|0|True
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*ParameterTableField|node_column|Node cost column (number)|points|0|True
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OutputVector|output|Network_Connectivity

‎python/plugins/processing/algs/grass7/description/v.net.distance.txt

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v.net.distance
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Computes shortest distance via the network between the given sets of features.
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Vector (v.*)
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ParameterVector|input|Input vector line layer (network)|1|False
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ParameterVector|from_points|Input vector point layer (from)|0|False
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ParameterVector|to_points|Input vector point layer (to)|0|False
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ParameterNumber|threshold|Threshold for connecting centers to the network (in map unit)|0.0|None|50.0|False
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*ParameterSelection|arc_type|Arc type|line;boundary;line,boundary|2
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*ParameterString|from_cats|From Category values||False|True
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*ParameterString|from_where|From WHERE conditions of SQL statement without 'where' keyword||True|True
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*ParameterSelection|to_type|To feature type|point;line;boundary|0
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*ParameterString|to_cats|To Category values||False|True
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*ParameterString|to_where|To WHERE conditions of SQL statement without 'where' keyword||True|True
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*ParameterTableField|arc_column|Arc forward/both direction(s) cost column (number)|input|0|True
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*ParameterTableField|arc_backward_column|Arc backward direction cost column (number)|input|0|True
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*ParameterTableField|node_column|Node cost column (number)|from_points|0|True
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*ParameterBoolean|-g|Use geodesic calculation for longitude-latitude locations|False|True
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OutputVector|output|Network_Distance

‎python/plugins/processing/algs/grass7/description/v.net.flow.txt

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v.net.flow
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Computes the maximum flow between two sets of nodes in the network.
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Vector (v.*)
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ParameterVector|input|Input vector line layer (network)|1|False
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ParameterVector|points|Input vector point layer (flow nodes)|0|False
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ParameterNumber|threshold|Threshold for connecting centers to the network (in map unit)|0.0|None|50.0|False
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ParameterString|source_cats|Source Category values||False|True
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ParameterString|source_where|Source WHERE conditions of SQL statement without 'where' keyword||True|True
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ParameterString|sink_cats|Sink Category values||False|True
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ParameterString|sink_where|Sink WHERE conditions of SQL statement without 'where' keyword||True|True
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*ParameterTableField|arc_column|Arc forward/both direction(s) cost column (number)|input|0|True
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*ParameterTableField|arc_backward_column|Arc backward direction cost column (number)|input|0|True
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*ParameterTableField|node_column|Node cost column (number)|points|0|True
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OutputVector|output|Network_Flow
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OutputVector|cut|Network_Cut

‎python/plugins/processing/algs/grass7/description/v.net.iso.txt

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v.net.iso
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Splits network by cost isolines.
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Vector (v.*)
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ParameterVector|input|Input vector line layer (arcs)|1|False
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ParameterVector|points|Centers point layer (nodes)|0|False
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ParameterNumber|threshold|Threshold for connecting centers to the network (in map unit)|0.0|None|50.0|False
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*ParameterSelection|arc_type|Arc type|line;boundary;line,boundary|2
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*ParameterString|center_cats|Category values|1-100000|False|False
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ParameterString|costs|Costs for isolines|1000,2000,3000|False|False
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*ParameterTableField|arc_column|Arc forward/both direction(s) cost column (number)|input|0|True
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*ParameterTableField|arc_backward_column|Arc backward direction cost column (number)|input|0|True
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*ParameterTableField|node_column|Node cost column (number)|points|0|True
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*ParameterBoolean|-g|Use geodesic calculation for longitude-latitude locations|False|True
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OutputVector|output|Network_Iso

‎python/plugins/processing/algs/grass7/description/v.net.nodes.txt

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v.net
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v.net.nodes - Creates points for each network arcs
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Vector (v.*)
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ParameterVector|input|Input vector line layer (arcs)|1|False
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Hardcoded|operation=nodes
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*ParameterBoolean|-c|Assign unique categories to new points (for operation 'nodes')|False
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OutputVector|output|Nodes

‎python/plugins/processing/algs/grass7/description/v.net.nreport.txt

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v.net
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v.net.nreport - Reports nodes information of a network
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Vector (v.*)
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ParameterVector|input|Input vector line layer (arcs)|1|False
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Hardcoded|operation=nreport
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OutputFile|output|NReport
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‎python/plugins/processing/algs/grass7/description/v.net.path.txt

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v.net.path
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Finds shortest path on vector network
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Vector (v.*)
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ParameterVector|input|Input vector line layer (arcs)|1|False
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ParameterVector|points|Centers point layer (nodes)|0|False
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ParameterFile|file|Name of file containing start and end points|False|False
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ParameterNumber|threshold|Threshold for connecting centers to the network (in map unit)|0.0|None|50.0|False
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*ParameterSelection|type|Arc type|line;boundary;line,boundary|2
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*ParameterTableField|arc_column|Arc forward/both direction(s) cost column (number)|input|0|True
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*ParameterTableField|arc_backward_column|Arc backward direction cost column (number)|input|0|True
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*ParameterTableField|node_column|Node cost column (number)|points|0|True
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*ParameterNumber|dmax|Maximum distance to the network|None|None|1000.0|True
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*ParameterBoolean|-g|Use geodesic calculation for longitude-latitude locations|False|True
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*ParameterBoolean|-s|Write output as original input segments, not each path as one line|False|True
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OutputVector|output|Network_Path
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‎python/plugins/processing/algs/grass7/description/v.net.report.txt

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v.net
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v.net.report - Reports lines information of a network
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Vector (v.*)
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ParameterVector|input|Input vector line layer (arcs)|1|False
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Hardcoded|operation=report
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OutputFile|output|Report
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‎python/plugins/processing/algs/grass7/description/v.net.salesman.txt

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v.net.salesman
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Creates a cycle connecting given nodes (Traveling salesman problem)
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Vector (v.*)
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ParameterVector|input|Input vector line layer (arcs)|1|False
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ParameterVector|points|Centers point layer (nodes)|0|False
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ParameterNumber|threshold|Threshold for connecting centers to the network (in map unit)|0.0|None|50.0|False
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*ParameterSelection|arc_type|Arc type|line;boundary;line,boundary|2
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*ParameterString|center_cats|Category values|1-100000|False|False
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*ParameterTableField|arc_column|Arc forward/both direction(s) cost column (number)|input|0|True
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*ParameterTableField|arc_backward_column|Arc backward direction cost column (number)|input|0|True
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*ParameterBoolean|-g|Use geodesic calculation for longitude-latitude locations|False|True
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OutputVector|output|Network_Salesman
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OutputTable|sequence|Salesman_Nodes_Sequence

‎python/plugins/processing/algs/grass7/description/v.net.spanningtree.txt

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v.net.spanningtree
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Computes minimum spanning tree for the network.
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Vector (v.*)
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ParameterVector|input|Input vector line layer (arcs)|1|False
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*ParameterTableField|arc_column|Arc forward/both direction(s) cost column (number)|input|0|True
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*ParameterBoolean|-g|Use geodesic calculation for longitude-latitude locations|False|True
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OutputVector|output|SpanningTree

‎python/plugins/processing/algs/grass7/description/v.net.steiner.txt

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v.net.steiner
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Creates Steiner tree for the network and given terminals
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Vector (v.*)
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ParameterVector|input|Input vector line layer (arcs)|1|False
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ParameterVector|points|Centers point layer (nodes)|0|False
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ParameterNumber|threshold|Threshold for connecting centers to the network (in map unit)|0.0|None|50.0|False
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*ParameterSelection|arc_type|Arc type|line;boundary;line,boundary|2
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*ParameterString|terminal_cats|Category values|1-100000|False|False
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*ParameterTableField|acolumn|Arc forward/both direction(s) cost column (number)|input|0|True
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*ParameterNumber|npoints|Maximum distance to the network|None|None|-1|True
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*ParameterBoolean|-g|Use geodesic calculation for longitude-latitude locations|False|True
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OutputVector|output|Network_Steiner

‎python/plugins/processing/algs/grass7/description/v.net.visibility.txt

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v.net.visibility
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Performs visibility graph construction.
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Vector (v.*)
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ParameterVector|input|Input vector line layer (arcs)|-1|False
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*ParameterString|coordinates|Coordinates||False|True
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*ParameterVector|visibility|Input vector line layer containing visable points|1|True
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OutputVector|output|Network_Visibility

‎python/plugins/processing/algs/grass7/ext/CMakeLists.txt

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FILE(GLOB PY_FILES *.py)
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PLUGIN_INSTALL(processing algs/grass7/ext ${PY_FILES})

‎TODO renamed to ‎python/plugins/processing/algs/grass7/ext/__init__.py

File renamed without changes.

‎python/plugins/processing/algs/grass7/ext/v_net.py

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# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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v_net.py
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--------
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Date : December 2015
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Copyright : (C) 2015 by Médéric Ribreux
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Email : medspx at medspx dot fr
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***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************
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This Python module handles pre-treatment operations for v.net.* GRASS7 modules.
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Before using a v.net module you often have to incorporate a points layer into
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the network vector map.
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"""
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__author__ = 'Médéric Ribreux'
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__date__ = 'December 2015'
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__copyright__ = '(C) 2015, Médéric Ribreux'
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# This will get replaced with a git SHA1 when you do a git archive
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__revision__ = '$Format:%H$'
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import os
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from processing.core.parameters import getParameterFromString, ParameterVector, ParameterNumber, ParameterBoolean, ParameterString
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def incorporatePoints(alg, pointLayerName=u'points', networkLayerName=u'input'):
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"""
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incorporate points with lines to form a GRASS network
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"""
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paramsToDelete = []
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# Create an intermediate GRASS layer which is the combination of network + centers
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intLayer = alg.getTempFilename()
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# Grab the point layer and delete this parameter (not used by v.net.alloc)
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pointLayer = alg.getParameterValue(pointLayerName)
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if pointLayer:
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pointLayer = alg.exportedLayers[pointLayer]
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paramsToDelete.append(alg.getParameterFromName(u'points'))
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# Grab the network layer and tell to v.net.alloc to use the temp layer instead
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lineLayer = alg.getParameterValue(networkLayerName)
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if lineLayer:
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lineLayer = alg.exportedLayers[lineLayer]
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alg.setParameterValue(networkLayerName, intLayer)
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threshold = alg.getParameterValue(u'threshold')
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paramsToDelete.append(alg.getParameterFromName(u'threshold'))
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# Create the v.net connect command for point layer integration
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command = u"v.net -s input={} points={} out={} op=connect threshold={}".format(
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lineLayer, pointLayer, intLayer, threshold)
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alg.commands.append(command)
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# Connect the point layer database to the layer 2 of the network
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command = u"v.db.connect -o map={} table={} layer=2".format(intLayer, pointLayer)
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alg.commands.append(command)
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# Delete some unnecessary parameters
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for param in paramsToDelete:
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alg.parameters.remove(param)
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alg.processCommand()
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# Bring back the parameters:
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for param in paramsToDelete:
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alg.parameters.append(param)
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def variableOutput(alg, params, nocats=True):
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""" Handle variable data output for v.net modules:
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params is like:
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{ u"output": [u"point", 1], # One output of type point from layer 1
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u"output2": [u"line", 1], # One output of type line from layer 1
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u"output3: [u"point", 2] # one output of type point from layer 2
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}
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"""
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# Build the v.out.ogr commands
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for outputName, typeList in params.iteritems():
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if not isinstance(typeList, list):
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continue
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out = alg.getOutputValue(outputName)
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command = u"v.out.ogr {} type={} layer={} -s -e input={} output=\"{}\" format=ESRI_Shapefile output_layer={}".format(
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u"" if typeList[0] == u"line" and nocats else u"-c",
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typeList[0],
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typeList[1],
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alg.exportedLayers[out],
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os.path.dirname(out),
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os.path.basename(out)[:-4]
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)
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alg.commands.append(command)
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alg.outputCommands.append(command)

‎python/plugins/processing/algs/grass7/ext/v_net_alloc.py

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# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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v_net_alloc.py
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---------------------
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Date : December 2015
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Copyright : (C) 2015 by Médéric Ribreux
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Email : medspx at medspx dot fr
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***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************
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"""
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__author__ = 'Médéric Ribreux'
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__date__ = 'December 2015'
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__copyright__ = '(C) 2015, Médéric Ribreux'
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# This will get replaced with a git SHA1 when you do a git archive
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__revision__ = '$Format:%H$'
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from v_net import incorporatePoints, variableOutput
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def processCommand(alg):
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incorporatePoints(alg)
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def processOutputs(alg):
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outputParameter = {u"output": [u"line", 1]}
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variableOutput(alg, outputParameter, False)

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