gacarrillor

Ejercicios propuestos para cada sesión

Tarea:

• Seleccionar manualmente un departamento. Usando análisis espacial (con PyQGIS) cortar las vías (capa "roads") que pasan por ese departamento. Sumar la longitud de las vías cortadas.
• Opcional: Cargar manualmente las capas "world" y "hackfests" a QGIS. Seleccionar manualmente un país de la capa world. Obtener el nombre del (de los) hackfest(s) realizados en ese país.

gacarrillor

As part of the application to the QGIS certification program, I'd like to show you my contributions to QGIS project.

Contributions to QGIS

(Version 2023.05.23)

• Development/commits to QGIS
  • I've been involved in QGIS development as official core contributor since 2009. You can see my contributions in both the old Trac system and GitHub.
• Contributions to the QGIS documentation and training materials
• QGIS documentation

gacarrillor

from qgis.utils import iface
from qgis.core import QgsProject, QgsVectorFileWriter, QgsCoordinateReferenceSystem

path = "/tmp/gpx/sample.gpx"
layer = QgsProject.instance().mapLayer("[% @layer_id %]")

if layer.selectedFeatureCount():
    options = QgsVectorFileWriter.SaveVectorOptions()
    options.ct = QgsCoordinateTransform(layer.crs(), QgsCoordinateReferenceSystem(4326), QgsProject.instance())
    options.driverName = "GPX"

gacarrillor

from qgis.PyQt.QtCore import QSettings
from qgis.core import QgsVectorLayer, QgsFeatureRequest, QgsExpression, QgsFeature, qgsfunction


@qgsfunction(args='auto', group='LADM-COL', helpText="""Example:<br><pre>get_domain_code_2_11_pg(
  'gc_condicionprediotipo',
  'NPH',
  True)</pre>""")
def get_domain_code_2_11_pg(domain_table, value, value_is_ilicode, feature, parent):
    """

gacarrillor

# -*- coding: utf-8 -*-
import ast
import datetime
import glob
import json
import os

from qgis.PyQt.QtCore import (Qt,
                              QObject,
                              pyqtSignal,

gacarrillor

Running processing (yamls based) tests

export LD_LIBRARY_PATH=/docs/dev/qgis/QGIS/build_duplicate_nodes/output/lib/
export PYTHONPATH=/docs/dev/qgis/QGIS/build_duplicate_nodes/output/python/:/docs/dev/qgis/QGIS/tests/src/python:/docs/dev/    qgis/QGIS/build_duplicate_nodes/output/python/plugins
export QGIS_PREFIX_PATH=/docs/dev/qgis/QGIS/build_duplicate_nodes/output

/docs/dev/qgis/QGIS/python/plugins/processing$ python3 tests/QgisAlgorithmsTest4.py

Run other Python tests

QGIS_PREFIX_PATH=output PYTHONPATH=output/python:$PYTHONPATH python3 /docs/dev/qgis/core/QGIS/tests/src/python/test_plugindependencies.py

gacarrillor

import sys

from qgis.core import (
     QgsApplication,
     QgsProcessingFeedback,
     QgsVectorLayer,
     QgsProperty
)

# On Linux, you need to prepare the environment with these variables:

gacarrillor

<!DOCTYPE model>
<Option type="Map">
  <Option name="children" type="Map">
    <Option name="qgis:basicstatisticsforfields_1" type="Map">
      <Option name="active" type="bool" value="true"/>
      <Option name="alg_config"/>
      <Option name="alg_id" type="QString" value="qgis:basicstatisticsforfields"/>
      <Option name="component_description" type="QString" value="Basic statistics for fields"/>
      <Option name="component_pos_x" type="double" value="741"/>
      <Option name="component_pos_y" type="double" value="494"/>

gacarrillor

Issue with models for opengis.ch

** REQUIREMENTS **:

Install the Asistente LADM_COL plugin to be able to use a custom model (LADM_COL:ETL-model).

MATERIALS:

gacarrillor

  while ( featureIt != features.constEnd() )
  {
    QgsAttributes srcAttr = featureIt->attributes();
    QgsAttributeMap dstAttr;

    for ( int src = 0; src < srcAttr.count(); ++src )
    {
      int dst = remap.value( src, -1 );
      if ( dst < 0 )
        continue;