How many labels are in a textymbolizer in SLD?
Two labels in the first symbolizer (“5”) will each be 5 pixels apart from each other, for a total of 10 pixels. You can have multiple TextSymbolizers in your SLD file, each with a different spaceAround option. If all the spaceAround options are >=0, this will do what you would normally expect.
How are text labels positioned in a GeoServer?
Text labels are positioned either at points or along linear paths derived from the geometry being labelled. Labelling is a complex operation, and effective labelling is crucial to obtaining legible and visually pleasing cartographic output. For this reason SLD provides many options to control label placement.
When to use standard SLD label conflict resolution?
If the element is not present, or if a group of labels all have the same priority, then standard SLD label conflict resolution is used. Under this strategy, the label to display out of a group of conflicting labels is chosen essentially at random.
How to label a geometry with a textsymbolizer?
Any kind of geometry may be labelled with a . For non-point geometries, a representative point is used (such as the centroid of a line or polygon). The element specifies the text that will be rendered as the label.
How are whitespaces handled in the label element?
If you need to add extra white space or newline, you’ll stumble into an XML oddity. The whitespace handling in the Label element is following a XML rule called “collapse”, in which all leading and trailing whitespaces have to be removed, whilst all whitespaces (and newlines) in the middle of the xml element are collapsed into a single whitespace.
Is there a way to allow labels to overlap?
By using the spaceAround option you can either allow labels to overlap, or add extra space around labels. The value supplied for the option is a positive or negative size, in pixels. Using the default value of 0, the bounding box of a label cannot overlap the bounding box of another label: