Reporter: DragonflyKing
[Submitted to the original trac issue database at 6.38pm, Friday, 26th June 2009]

SUMMARY: Ponds (tagged as natural=water) located within basins (tagged as landuse=basin, basin=infiltration) cannot be seen because both areas render in blue. Suggest colour change of basin areas to green.

I have entered the Police Road Retarding Basin in Rowville, Victoria Australia http://www.openstreetmap.org/?lat=-37.9 rs=B000FTF (This area was heavily re-landscaped several years ago, which Yahoo satelite photo do not yet show. Refer to Google satelite images if you need to see current layout.)

This basin is made up of several ponds that are linked with streams and flood gates. In general the basin is a broad grassy area with shrubs surrounding the ponds to prevent errosion and land management tracks going around each of the ponds that are mostly frequented by dog walkers. It is essentially a grass park for most of the year.

When I encompass the area tagged as Landuse = basin and basin=infiltration the area is rendered the same colour as water in both Mapnik and OSMARender so that the ponds become invisible (blue on blue).

My understanding is that this is a typical basin, being mostly grass and flooded only periodically. Basins will always be in proximity to water and should render differently so that the distinction can be made.

I would like to suggest a colour change for the rendering of basins to parkland green.

Thanks,

Michael