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Updated MarkersSymbolizer (markdown)

ThomasG77 2011-12-28 15:26:11 -08:00
parent 6c5d70af8e
commit 7e3e663a7e
1 changed files with 6 additions and 6 deletions
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MarkersSymbolizer.md

@ -21,16 +21,17 @@ It can be added to a Rule with line features like:
<MarkersSymbolizer /> <MarkersSymbolizer />
``` ```
[[/images/offsets_directions.png)]] [[/images/offsets_directions.png]]
The MarkersSymbolizer should draw blue directional arrows *in the direction of the geometry* (for things like one-way streets). The [[MarkersSymbolizer]] should draw blue directional arrows *in the direction of the geometry* (for things like one-way streets).
In case you notice arrows pointing the wrong direction, this means that the segment has been coded in the wrong way. In case you notice arrows pointing the wrong direction, this means that the segment has been coded in the wrong way.
The ST_reverse function of Postgis can fix this (The problem will then be to identify the geometries that need to be updated). The ST_reverse function of Postgis can fix this (The problem will then be to identify the geometries that need to be updated).
### SVG markers ### SVG markers
*NEW*: Staring from r1793 MarkersSymbolizer supports [Scalable Vector Graphics (SVG)](http://www.w3.org/TR/SVG/) as input images:
*NEW*: Staring from r1793 [[MarkersSymbolizer]] supports [Scalable Vector Graphics (SVG)](http://www.w3.org/TR/SVG/) as input images:
[[/images/markers_symbolizer.png]] [[/images/markers_symbolizer.png]]
@ -45,7 +46,7 @@ The ST_reverse function of Postgis can fix this (The problem will then be to ide
### Dynamic Ellipses ### Dynamic Ellipses
*NEW*: Starting from r2158 MarkersSymbolizer supports width/height/fill/stroke properties to dynamically draw circles (w == h) or ellipses (w != h) when no SVG file is supplied: *NEW*: Starting from r2158 MarkersSymbolizer supports width/height/fill/stroke properties to dynamically draw circles (w == h) or ellipses (w != h) when no SVG file is supplied:
[Image](dynamic_ellipse_markers.png) [[/images/dynamic_ellipse_markers.png]]
```xml ```xml
@ -54,8 +55,7 @@ The ST_reverse function of Postgis can fix this (The problem will then be to ide
CAVEAT: these properties do not apply to SVG files, and SVG transforms are not supported for modifying ellipses (yet). CAVEAT: these properties do not apply to SVG files, and SVG transforms are not supported for modifying ellipses (yet).
OSM currently renders one-way street arrows with Mapnik using several stacked LineSymbolizers with varying dash-arrays, but could potentially use the MarkersSymbolizer in the future: OSM currently renders one-way street arrows with Mapnik using several stacked [LineSymbolizers](LineSymbolizer) with varying dash-arrays, but could potentially use the [[MarkersSymbolizer]] in the future:
```xml ```xml
<LinePatternSymbolizer file="/home/mapnik/mapnik/symbols/arrow.png" type="png" width="74" height="8" /> <LinePatternSymbolizer file="/home/mapnik/mapnik/symbols/arrow.png" type="png" width="74" height="8" />