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QGIS User Guide, Versão 1.8.0
(see Figure_labels_3 ). Use the Advanced tab for label placement, label distance and labeling priority. Define if
every part of a multipart feature is to be labeled, suppress labeling of features and wrap labels on characters here.
Use Data defined settings for attribute-based or database-connection-based settings.
Figura 11.17: Smart labeling of vector polygon layers
Change engine settings
Additionally you can click the [Engine settings] button and select the search method, used to find the best label
placement. Available is Chain, Popmusic Tabu, Popmusic Chain, Popmusic Tabu Chain and FALP.
Figura 11.18: Dialog to change label engine settings
Furthermore the number of candidates can be defined for point, line and polygon features, and you can define
whether to show all labels (including colliding labels) and label candidates for debugging.
Keywords to use in attribute columns for labeling
There is a list of supported key words, that can be used for the placement of labels in defined attribute columns.
• For horizontal alignment: left, center, right
• For vertical alignment: bottom, base, half, top
• Colors can be specified in svg notation, e.g. #ff0000
• for bold, underlined, strikeout and italic: 0 = false 1 = true
A combination of key words in one column also works, e.g.: base right or bottom left.
11.2.6 Fields Tab
Within the Fields tab the field attributes of the selected dataset can be manipulated. The buttons
11.2. The Vector Properties Dialog
New Column
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