mirror of
https://github.com/qgis/QGIS.git
synced 2025-11-03 00:14:12 -05:00
78 lines
3.3 KiB
Python
78 lines
3.3 KiB
Python
# -*- coding: utf-8 -*-
|
|
|
|
"""
|
|
***************************************************************************
|
|
v_distance.py
|
|
-------------
|
|
Date : February 2016
|
|
Copyright : (C) 2016 by Médéric Ribreux
|
|
Email : medspx at medspx dot fr
|
|
***************************************************************************
|
|
* *
|
|
* This program is free software; you can redistribute it and/or modify *
|
|
* it under the terms of the GNU General Public License as published by *
|
|
* the Free Software Foundation; either version 2 of the License, or *
|
|
* (at your option) any later version. *
|
|
* *
|
|
***************************************************************************
|
|
"""
|
|
|
|
__author__ = 'Médéric Ribreux'
|
|
__date__ = 'February 2016'
|
|
__copyright__ = '(C) 2016, Médéric Ribreux'
|
|
|
|
# This will get replaced with a git SHA1 when you do a git archive
|
|
|
|
__revision__ = '$Format:%H$'
|
|
|
|
import os
|
|
|
|
|
|
def checkParameterValuesBeforeExecuting(alg):
|
|
""" Verify if we have the right parameters """
|
|
# Verify upload value
|
|
upload = alg.getParameterValue(u'upload')
|
|
if upload:
|
|
uploadList = [f for f in upload.split(",") if f not in ['cat', 'dist', 'to_x', 'to_y', 'to_along', 'to_angle', 'to_attr']]
|
|
if len(uploadList) > 0:
|
|
return alg.tr(u"Upload parameters should be a list of elements taken in the following values:\n'cat', 'dist', 'to_x', 'to_y', 'to_along', 'to_angle', 'to_attr'")
|
|
# Verifiy that we have the good number of columns
|
|
column = alg.getParameterValue(u'column')
|
|
if ((column is None or len(column) == 0) and upload) or (len(column.split(",")) != len(upload.split(","))):
|
|
return alg.tr(u"The number of columns and the number of upload parameters should be equal!")
|
|
|
|
# Verify from_type and to_type values
|
|
for geom in [u'from', u'to']:
|
|
geoType = alg.getParameterValue(u'{}_type'.format(geom))
|
|
if geoType:
|
|
geoTypeList = [f for f in geoType.split(",") if f not in ['point', 'line', 'boundary', 'centroid', 'area']]
|
|
if len(geoTypeList) > 0:
|
|
return alg.tr(u"Feature type for '{}' should be a list of elements taken in the following values:\n'point', 'line', 'boundary', 'centroid', 'area'".format(geom))
|
|
|
|
return None
|
|
|
|
|
|
def processCommand(alg, parameters):
|
|
# We temporary remove the output 'from_output'
|
|
fromOutput = alg.getOutputFromName(u'from_output')
|
|
fromParam = alg.getParameterValue(u'from')
|
|
alg.exportedLayers[fromOutput.value] = alg.exportedLayers[fromParam]
|
|
alg.removeOutputFromName(u'from_output')
|
|
alg.processCommand()
|
|
|
|
# We re-add the new output
|
|
alg.addOutput(fromOutput)
|
|
|
|
|
|
def processOutputs(alg):
|
|
# Output results ('from' table and output table)
|
|
for output in [u'from_output', u'output']:
|
|
out = alg.getOutputValue(output)
|
|
command = u"v.out.ogr -c type=auto -s -e input={} output=\"{}\" format=ESRI_Shapefile output_layer={}".format(
|
|
alg.exportedLayers[out],
|
|
os.path.dirname(out),
|
|
os.path.basename(out)[:-4]
|
|
)
|
|
alg.commands.append(command)
|
|
alg.outputCommands.append(command)
|