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What are the different types of renderers in QGIS?
Regardless layer geometry type, there are four common types of renderers: single symbol, categorized, graduated and rule-based. For point layers, there are a point displacement and a heatmap renderers available while polygon layers can also be rendered with the inverted polygons and 2.5 D renderers.
How to change the drawing order in QGIS?
QGIS >= 2.14 has built in support for specifying the rendering order. It’s on the bottom of the “styles” tab under your layer properties. You could also change the Symbol levels of your shapefile to give each symbol layer higher priorities than others. You can access this from:
Where are the vector properties dialogs in QGIS?
14.1. The Vector Properties Dialog ¶ The Layer Properties dialog for a vector layer provides general settings to manage appearance of layer features in the map (symbology, labeling, diagrams), interaction with the mouse (actions, map tips, form design). It also provides information about the layer.
How to change the Order of the symbol layers?
To change the order of the symbol layers, select the Line layer in the Symbol layers panel, then click Advanced -> Symbol levels… in the bottom right-hand corner of the window. This will open a dialog like this: Select Enable symbol levels.
How does the query builder work in QGIS?
The Query Builder provides an interface that allows you to define a subset of the features in the layer using a SQL-like WHERE clause and to display the result in the main window. As long as the query is active, only the features corresponding to its result are available in the project.
How to manage custom styles in QGIS 14.1.1?
See Managing Custom Styles. Because properties (symbology, label, actions, default values, forms…) of embedded layers (see Nesting Projects) are pulled from the original project file and to avoid changes that may break this behavior, the layer properties dialog is made unavailable for these layers. 14.1.1.
How to change the color of rivers in QGIS?
The example in figure_symbology_2 shows the category rendering dialog used for the rivers layer of the QGIS sample dataset. The Symbology allows you to select multiple symbols and right click to change color, transparency, size, or width of selected entries.