Arrows
Arrows are designed to represent the direction of vectors. The <resc:ArrowSymbolizer> element is used to specify the styling information for a layer of arrows. It requires one variable. This data should be a set of directions given as an angular compass bearing (degrees clockwise from North). The following tags can be used within this element:
| Tag name | Type of contents | Default value | Description |
|---|---|---|---|
<resc:ArrowSize> |
Integer | 8 | Size of arrows |
<resc:ArrowColour> |
String | #FF000000 (Black) | Colour of arrows |
<resc:ArrowBackground> |
String | transparent | Colour of the background |
<resc:ArrowStyle> |
String | THIN_ARROW | Style of the arrows to plot. Accepts the values "THIN_ARROW" (a normal arrow), "FAT_ARROW" (a wider version), "TRI_ARROW" (a long isosceles triangle), "UPSTREAM" (dots with a line pointing in the desired direction) |
<resc:ArrowDirectionConvention> |
String | DEFAULT | Convention for the arrows direction. Accepts the values "DEFAULT", "METEOROLOGICAL" (not supported for style "UPSTREAM") |
For example:
<resc:ArrowSymbolizer>
<se:Opacity>1.0</se:Opacity>
<resc:ArrowSize>8</resc:ArrowSize>
<resc:ArrowColour>#FF000000</resc:ArrowColour>
<resc:ArrowStyle>UPSTREAM</resc:ArrowStyle>
<resc:ArrowBackground>transparent</resc:ArrowBackground>
<resc:ArrowDirectionConvention>DEFAULT</resc:ArrowDirectionConvention>
</resc:ArrowSymbolizer>