Web Map Service
From Wikiteer
http://en.wikipedia.org/wiki/Web_Map_Service
- VERSION=version
- REQUEST=GetMap
- LAYERS=layer_list
- STYLES=style_list
- SRS=namespace:identifier (spatial reference system)
- BBOX=xmin,ymin,xmax,ymax
- WIDTH=output_width
- HEIGHT=output_height
- FORMAT=output_format
- TRANSPARENT=TRUE|FALSE
- BGCOLOR=color_value (default 0xFFFFFF)
- EXCEPTIONS=exception_format
- TIME=time
- ELEVATION=elevation