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Creating plugins in Python is simple, see Desenvolvimento de Complementos Python for detailed instructions.ġ.3 Aplicações Python Often when processing some GIS data, it is handy to create some scripts for automating the process instead of doing the same task again and again. See the Python Plugin Repositories page for various sources of plugins.

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The plugin installer allows users to easily fetch, upgrade and remove Python plugins. Many plugins covering various functionality have been written since the introduction of Python support. The main advantage over C++ plugins is its simplicity of distribution (no compiling for each platform needed) and easier development. With the addition of Python support to QGIS, it is also possible to use plugins written in Python. This was originally possible only with C++ language. For convenience of the user, the following statements are executed when the console is started (in future it will be possible to set further initial commands) from re import * import qgis.utilsįor those which use the console often, it may be useful to set a shortcut for triggering the console (within menu Settings → Configure shortcuts.)ġ.2 Complementos Python QGIS allows enhancement of its functionality using plugins. This interface allows access to the map canvas, menus, toolbars and other parts of the QGIS application. For interaction with QGIS environment, there is a iface variable, which is an instance of QgsInterface.

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The console opens as a non-modal utility window: The screenshot above illustrates how to get the layer currently selected in the layer list, show its ID and optionally, if it is a vector layer, show the feature count. It can be opened from menu: Plugins → Python Console. Also, the python/plugins/ folder in your QGIS installation contains some plugin that you can use to learn how to develop such plugin and how to perform some of the most common tasksġ.1 Terminal Python For scripting, it is possible to take advantage of integrated Python console.

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A good resource when dealing with plugins is to download some plugins from plugin repository and examine their code. See QGIS tutorial ported to Python for some examples of simple 3rd party apps. There are some resources about programming with PyQGIS on QGIS blog. Pythonic QGIS API is nearly identical to the API in C++.

criar aplicativos personalizados com base na API do QGIS There is a complete QGIS API reference that documents the classes from the QGIS libraries.

emitir comandos no console do Python no QGIS.

A FAZER: Obtendo PyQGIS para o trabalho (compilação Manual, Resolução de Problemas) Existem várias maneiras de como usar vínculos python QGIS, eles são abordados em detalhes nas seções a seguir: Python bindings for Qt (PyQt) are done also using SIP and this allows seamless integration of PyQGIS with PyQt.

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The reason for using SIP instead of more widely used SWIG is that the whole QGIS code depends on Qt libraries. We’ve decided for Python as it’s one of the most favourite languages for scripting. Starting from 0.9 release, QGIS has optional scripting support using Python language. Ela não lista todos os possíveis casos de uso, mas dá uma boa visão geral dos principais recursos. Įste documento é um tutorial e um guia de referência.

ġ8 Biblioteca de análise de rede 18.1 Informação Geral. 17.3 Cómo acceder a la tabla de atributos de los objetos espaciales seleccionados. ġ7 Fragmentos de código 17.1 Cómo llamar a un método por un atajo de teclado. ġ6 Liberando seu complemento 16.1 Repositório oficial de complementos python. ġ5 Compatibilidade com versões anteriores do QGIS 15.1 menu Complementos. ġ4 Usando Camadas de Plugins 14.1 Subclasses QgsPluginLayer. ġ3 IDE settings for writing and debugging plugins 13.1 Uma nota na configuração IDE para Windows. ġ2 Desenvolvimento de Complementos Python 12.1 Escrevendo um complemento. ġ0 Leitura e Armazenamento de Configuraçõesġ1 Comunicação com o usuário 11.1 Showing messages. Įxpressões, filtragem e cálculo dos valores 9.1 Parsing Expressions. Utilizando o Mapa da Tela 7.1 Incorporar o Mapa da Tela. Suporte a projeções 6.1 Sistemas de Referencia de Coordenadas. Geometry Handling 5.1 Construção de Geométria. 4.7 Appearance (Symbology) of Vector Layers. 4.3 Modificando Camadas Vetoriais com um Buffer 4.4 Using Spatial Index. Usando Camadas Vetor 4.1 Interagindo sobre camada vetor. 3.3 Atualizando camadas 3.4 Query Values. Usando Camadas Raster 3.1 Detalhes da Camada 3.2 Estilo Desenhado.

Ĭarregando Camadas 2.1 Camadas Vetoriais.

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