QGIS Configuration¶

Menu Geral¶

Aplicação

• Select the Style (QGIS restart required) and choose between ‘Oxygen’,’Windows’,’Motif’,’CDE’, ‘Plastique’ and ‘Cleanlooks’ ().
• Define the Icon theme . Currently only ‘default’ is possible.
• Define the Icon size .
• Define the Font. Choose between Qt default and a user-defined font.
• Change the Timeout for timed messages or dialogs .

• Esconder o ecrã inicial no arranque

• Mostrar dicas ao iniciar

• Títulos da caixa de grupos a negrito

• :guilabel:` Caixas de grupo em estilo QGIS`

• Use native color chooser dialogs
• Use live-updating color chooser dialogs
• Custom side bar style
• Experimental canvas rotation support (restart required)

Ficheiros de projecto

• Open project on launch (choose between ‘New’, ‘Most recent’ and ‘Specific’). When choosing ‘Specific’ use the to define a project.

• Create new project from default project. Tem a possibilidade de carregar em Set current project as default ou em Reset default. Pode navegar através dos seus ficheiros e definir uma directoria onde encontrar os modelos de projecto definidos pelo utilizador. Isto será adicionado a Project ‣ New From Template. Primeiro active Create new project from default project e a seguir salve o projecto dentro da pasta de modelos de projecto.

• Avisar para salvar projecto e alterações de fontes de dados quando necessário

• Prompt for confirmation when a layer is to be removed

• Avisar quando abrir um projecto guardado com uma versão antiga do |qg|

• Enable macros . This option was created to handle macros that are written to perform an action on project events. You can choose between ‘Never’, ‘Ask’, ‘For this session only’ and ‘Always (not recommended)’.

Menu Sistema¶

Ambiente

Variáveis de ambiente do sistema podem ser vistas agora, e muitas configuradas, no grupo Environment (ver figure_environment_variables). Isto é útil para plataformas, tais como Mac, onde um aplicativo GUI não herda necessariamente o ambiente do utilizador da linha de comandos. Também é útil para configuração e visualização de variáveis de ambiente para os conjuntos de ferramentas externas controlados pela caixa de ferramentas de Processamento (p. ex., SAGA, GRASS), e para activar a saída de depuração (“debugging”) para secções específicas do código-fonte.

• Use custom variables (restart required - include separators). You can [Add] and [Remove] variables. Already-defined environment variables are displayed in Current environment variables, and it’s possible to filter them by activating Show only QGIS-specific variables.

Figure System Environment:

System environment variables in QGIS

Directórios dos módulos

[Adicionar] ou [Remover] Caminho(s) para pesquisar bibliotecas de módulos C++ adicionais

Menu Fonte de Dados¶

Atributos dos elementos e tabela

• Abre a tabela de atributos na janela principal (Necessário reiniciar o QGIS)

• Copy geometry in WKT representation from attribute table. When using ^{Copy selected rows to clipboard} from the Attribute table dialog, this has the result that the coordinates of points or vertices are also copied to the clipboard.
• Attribute table behavior . There are three possibilities: ‘Show all features’, ‘Show selected features’ and ‘Show features visible on map’.
• Attribute table row cache . This row cache makes it possible to save the last loaded N attribute rows so that working with the attribute table will be quicker. The cache will be deleted when closing the attribute table.

• Representação para valores NULL. Aqui, pode definir um valor para os campos de dados que contêm valores NULL.

Manipulação das fontes de dados

• Scan for valid items in the browser dock . You can choose between ‘Check extension’ and ‘Check file contents’.
• Scan for contents of compressed files (.zip) in browser dock . ‘No’, ‘Basic scan’ and ‘Full scan’ are possible.
• Prompt for raster sublayers when opening. Some rasters support sublayers — they are called subdatasets in GDAL. An example is netCDF files — if there are many netCDF variables, GDAL sees every variable as a subdataset. The option allows you to control how to deal with sublayers when a file with sublayers is opened. You have the following choices:

  • ‘Sempre’: Perguntar sempre (se existem subcamadas)

  • ‘Se necessário’: Perguntar se a camada não tem bandas, mas tem subcamadas

  • ‘Nunca’: Nunca pede, não irá carregar nada

  • ‘Carregar tudo’: Nunca pede, mas carrega todas as subcamadas

• Ignore shapefile encoding declaration. If a shapefile has encoding information, this will be ignored by QGIS.
• Add PostGIS layers with double click and select in extended mode

• Adicione camadas Oracle com duplo clique e seleccione em modo alargado

• Execute expressions on server-side if possible
• create transaction groups automatically whenever possible (Experimental). When this mode is turned on, all (postgres) layers from the same database are synchronised in their edit state, i.e. when one layer is put into edit state, all are, when one layer is committed or one layer is rolled back, so are the others. Also, instead of buffering edit changes locally, they are directly sent to a transaction in the database which gets committed when the user clicks save layer.

Hidden Browser Path

This widget lists all the folder you chose to hide from the Browser panel. Removing a folder from the list will make it available in the Browser panel.

Menu de Renderização¶

Rendering behavior

• By default new layers added to the map should be displayed
• Use render caching where possible to speed up redraws
• Render layers in parallel using many CPU cores
• Max cores to use
• Map update interval (default to 250 ms)
• Enable feature simplification by default for newly added layers
• Simplification threshold
• Simplify on provider side if possible
• Maximum scale at which the layer should be simplified

Qualidade de renderização

• Fazer com que as linhas apareçam menos irregulares, em detrimento de algum desempenho do desenho

Matriciais

• Com a Selecção de banda RGB pode definir o número para a banda Vermelha, Verde e Azul.

Contrast enhancement

• Single band gray . A single band gray can have ‘No stretch’, ‘Stretch to MinMax’, ‘Stretch and Clip to MinMax’ and also ‘Clip to MinMax’.
• Multi band color (byte/band) . Options are ‘No stretch’, ‘Stretch to MinMax’, ‘Stretch and Clip to MinMax’ and ‘Clip to MinMax’.
• Multi band color (>byte/band) . Options are ‘No stretch’, ‘Stretch to MinMax’, ‘Stretch and Clip to MinMax’ and ‘Clip to MinMax’.
• Limits (minimum/maximum) . Options are ‘Cumulative pixel count cut’, ‘Minimum/Maximum’, ‘Mean +/- standard deviation’.

• Limites de contagem cumulativa de pixeis de corte

• Multiplicador do desvio-padrão

Corrigindo Erros

• Map canvas refresh

Colors Menu¶

This menu allows you to add some custom color that you can find in each color dialog window of the renderers. You will see a set of predefined colors in the tab: you can delete or edit all of them. Moreover you can add the color you want and perform some copy and paste operations. Finally you can export the color set as a gpl file or import them.

Menu de Janela e Legenda¶

Aparência padrão do mapa (reescrita pelas propriedades do projecto)

• Define a Cor da selecção e a Cor de fundo.

Legenda da camada

• Double click action in legend . You can either ‘Open layer properties’ or ‘Open attribute table’ with the double click.
• The following Legend item styles are possible:

  • Maiusculizar os nomes das camadas

  • Tornar negrito os nomes das camadas

  • Tornar negrito os nomes dos grupos

  • Mostrar nomes de atributos de classificação

  • Criar ícones matriciais (pode ser lento)

Menu Ferramentas de Mapa¶

This menu offers some options regarding the behavior of the Identify tool.

• Search radius for identifying and displaying map tips is a tolerance factor expressed as a percentage of the map width. This means the identify tool will depict results as long as you click within this tolerance.
• Highlight color allows you to choose with which color should features being identified are to be highlighted.
• Buffer determines a buffer distance to be rendered from the outline of the identify highlight.
• Minimum width determines how thick should the outline of a highlighted object be.

Ferramenta de medida

• Define Cor do elástico para as ferramentas de medida

• Define Casas decimais

• Keep base unit to not automatically convert large numbers (e.g., meters to kilometers)
• Preferred distance units (‘Meters’, ‘Feet’, ‘Nautical Miles’, ‘Degrees’ or ‘Map Units’ )
• Preferred area units (‘Square meters’, ‘Square feet’, ‘Square yards’, ‘Hectares’, ‘Map Units’ ...)
• Preferred angle units (‘Degrees’, ‘Radians’, ‘Gon/gradians’, ‘Minutes of arc’ ...)

Movendo e ampliando

• Define Mouse wheel action (‘Zoom’, ‘Zoom and recenter’, ‘Zoom to mouse cursor’, ‘Nothing’)

• Define o factor de aproximação/ afastamento para a roda do rato

Escalas pré-definidas

Here, you find a list of predefined scales. With the and buttons you can add or remove your personal scales. You can also import or export scales from/to a .XML file. Note that you still have the possibility to remove your changes and reset to the predefined list.

Composer Menu¶

Composition defaults

You can define the Default font here.

Aparência da Grelha

• Define the Grid style (‘Solid’, ‘Dots’, ‘Crosses’)
• Define the Grid color

Grid and guide defaults

• Define the Grid spacing
• Define the Grid offset for x and y
• Define the Snap tolerance

Menu Digitalizar¶

Criação de elementos

• Suprimir atributos de janelas pop-up depois de cada elemento criado

• Reutilizar últimos valores de atributos inseridos

• Validate geometries. Editing complex lines and polygons with many nodes can result in very slow rendering. This is because the default validation procedures in QGIS can take a lot of time. To speed up rendering, it is possible to select GEOS geometry validation (starting from GEOS 3.3) or to switch it off. GEOS geometry validation is much faster, but the disadvantage is that only the first geometry problem will be reported.

Elástico

• Define a Borracha Espessura da linha e Cor da linha

Ajuste

• Abrir opções de atracção na janela principal (necessário reiniciar o QGIS)

• Define Default snap mode (‘To vertex’, ‘To segment’, ‘To vertex and segment’, ‘Off’)

• Define Tolerância de atracção pré-definida em unidades de mapa ou pixeis

• Define o Raio de pesquisa para editar vértices em unidades de mapa ou pixeis

Marcadores de Vértices

• Mostrar marcadores apenas para elementos seleccionados

• Define vertex Marker style (‘Cross’ (default), ‘Semi transparent circle’ or ‘None’)

• Definir o vértice Tamanho do Marcador

Ferramenta de curva de afastamento

The next 3 options refer to the ^{Offset Curve} tool in Digitalização Avançada. Through the various settings, it is possible to influence the shape of the line offset. These options are possible starting from GEOS 3.3.

• Join style
• Quadrant segments
• Miter limit

Menu GDAL¶

GDAL is a data exchange library for raster files. In this tab, you can Edit create options and Edit Pyramids Options of the raster formats. Define which GDAL driver is to be used for a raster format, as in some cases more than one GDAL driver is available.

Menu SRC¶

SRC padrão para novos projectos

• Don’t enable ‘on the fly’ reprojection
• Automatically enable ‘on the fly’ reprojection if layers have different CRS
• Enable ‘on the fly’ reprojection by default

• Seleccione um SRC em Iniciar sempre um novo projecto com este SRC

SRC para novas camadas

This area allows you to define the action to take when a new layer is created, or when a layer without a CRS is loaded.

• Prompt for CRS
• Use project CRS
• Use default CRS

Default datum transformations

• Ask for datum transformation when no default is defined
• If you have worked with the ‘on-the-fly’ CRS transformation you can see the result of the transformation in the window below. You can find information about ‘Source CRS’ and ‘Destination CRS’ as well as ‘Source datum transform’ and ‘Destination datum transform’.

Locale Menu¶

• Sobrepor idioma do sistema e Idioma a utilizar em alternativa

• Informação sobre a região do sistema activo local

Authentication¶

In the Authentication tab you can set authentication configurations and manage PKI certificates. See Authentication System for more details.

Network Menu¶

Geral

• Define Pesquisa de endereço WMS, padrão como http://geopole.org/wms/search?search=\%1\&type=rss

• Define Tempo esgotado para pedidos de rede (ms) - o padrão é 60000

• Define Período de validade por defeito para tiles WMSC/WMTS (horas) - por defeito é 24

• Define Max retry in case of tile request errors
• Define User-Agent

Figure Network Tab:

Proxy-settings in QGIS

Configurações de cache

Define a Pasta e Tamanho para o cache.

• Usar proxy para aceder à web e define ‘Máquina’, ‘Porta’, ‘Utilizador’, e ‘Palavra-chave’.

• Set the Proxy type according to your needs.

  • Default Proxy: Proxy é determinado baseando-se na definição do proxy da aplicação em uso

  • Socks5Proxy: Proxy genérico para qualquer tipo de ligação. Suporta TCP, UDP, unindo a uma porta (ligações de entrada) e autenticação.

  • HttpProxy: Implementado usando o comando “LIGAR” , apenas suporta ligações TCP de saída; suporta autenticação.

  • HttpCachingProxy: Implementado usando comandos HTTP normais, é útil apenas no contexto de pedidos HTTP.

  • FtpCachingProxy: Implementado usando um proxy FTP, é útil no contexto de pedidos FTP.

Alguns URLs excluídos podem ser adicionados na caixa de texto debaixo das configurações de proxy (veja Figure_Network_Tab).

If you need more detailed information about the different proxy settings, please refer to the manual of the underlying QT library documentation at http://doc.trolltech.com/4.5/qnetworkproxy.html#ProxyType-enum.

You can modify the options according to your needs. Some of the changes may require a restart of QGIS before they will be effective.

• Settings are saved in a text file: $HOME/.config/QGIS/QGIS2.conf

• pode encontrar as configurações em: $HOME/Library/Preferences/org.qgis.qgis.plist

• As configurações são armazenadas no registo em: HKEY\CURRENT_USER\Software\QGIS\qgis