Hi Carl,
Welcome! This can be a red-herring but are you really running
postmaster on port 54323?
The default one is 5432
Artem
On 20 Feb 2008, at 09:26, Carl Heinze wrote:
> Hi to all,
>
> i'm absolutly new to mapnik. I installed the binaries on windows
> and rundemo.py worked fine.
>
> Now I want to start my first own map. I started with the OSM-Data,
> saved in PostGIS (e.g. in "planet_osm_roads"). I only get an image
> with nice mintgreen background without anything rendered on it.
>
> 1. I used generate_image.py:
>
> from mapnik import *
> import sys, os
>
> if __name__ == "__main__":
> try:
> mapfile = os.environ['MAPNIK_MAP_FILE']
> except KeyError:
> mapfile = "osm.xml"
> map_uri = "image.png"
>
> #---------------------------------------------------
> # Change this to the bounding box you want
> #
>
> ll = (7.0, 47.5, 8, 47.6)
>
> #---------------------------------------------------
>
> z = 10
> imgx = 500 * z
> imgy = 1000 * z
>
> m = Map(imgx,imgy)
> load_map(m,mapfile)
> prj = Projection("+proj=longlat +ellps=WGS84 +datum=WGS84
> +no_defs")
> c0 = prj.forward(Coord(ll[0],ll[1]))
> c1 = prj.forward(Coord(ll[2],ll[3]))
> bbox = Envelope(c0.x,c0.y,c1.x,c1.y)
> m.zoom_to_box(bbox)
> im = Image(imgx,imgy)
> render(m, im)
> view = im.view(0,0,imgx,imgy) # x,y,width,height
> view.save(map_uri, 'png')
>
>
>
> 2. The relevant parts of osm.xml look like:
>
> <Map bgcolor="#b5d0d0" srs="+proj=longlat +ellps=WGS84 +datum=WGS84
> +no_defs">
>
> ....
>
> <Layer name="roads" status="on" srs="+proj=longlat +ellps=WGS84
> +datum=WGS84 +no_defs">
> <StyleName>roads-casing</StyleName
> <StyleName>roads</StyleName>
> <Datasource>
> <Parameter name="type">postgis</Parameter>
> <Parameter name="host">localhost</Parameter>
> <Parameter name="port">54323</Parameter>
> <Parameter name="user">postgres</Parameter>
> <Parameter name="password">postgres</Parameter>
> <Parameter name="dbname">gis</Parameter>
> <Parameter name="table">(select * from planet_osm_roads order
> by z_order) as roads </Parameter>
> <Parameter name="estimate_extent">false</Parameter>
> <Parameter name="extent">779236,5942077,890555,19044</Parameter>
> </Datasource>
> </Layer>
>
>
> 3. My Postgres-Log says:
>
> ERROR: BOX3D parser - couldnt parse. It should look like: BOX3D
> (xmin ymin zmin,xmax ymax zmax) or BOX3D(xmin ymin,xmax ymax)
> STATEMENT: select asbinary(way) as geom,"railway" from (select *
> from planet_osm_roads order by z_order) as roads where way &&
> setSRID('BOX3D(7.999999999999998 48.22062728491966,1.#INF
> 1.#INF)'::box3d,4326)
> LOG: unexpected EOF on client connection
> LOG: unexpected EOF on client connection
> LOG: unexpected EOF on client connection
> ERROR: BOX3D parser - couldnt parse. It should look like: BOX3D
> (xmin ymin zmin,xmax ymax zmax) or BOX3D(xmin ymin,xmax ymax)
> STATEMENT: select asbinary(way) as geom,"railway" from (select *
> from planet_osm_roads order by z_order) as roads where way &&
> setSRID('BOX3D(7.999999999999998 48.22062728491966,1.#INF
> 1.#INF)'::box3d,4326)
> LOG: unexpected EOF on client connection
> LOG: unexpected EOF on client connection
> ERROR: BOX3D parser - couldnt parse. It should look like: BOX3D
> (xmin ymin zmin,xmax ymax zmax) or BOX3D(xmin ymin,xmax ymax)
> STATEMENT: select asbinary(way) as geom,"railway" from (select *
> from planet_osm_roads order by z_order) as roads where way &&
> setSRID('BOX3D(7.999999999999998 48.22062728491966,1.#INF
> 1.#INF)'::box3d,4326)
> LOG: unexpected EOF on client connection
> LOG: unexpected EOF on client connection
> LOG: unexpected EOF on client connection
>
>
> -- By outcomenting the parts concerning the projection in osm.xml
> and generate_image.py I got rid of the BOX3D-Error statements - but
> the LOG-Errors stayed and there was no successfull query reported
> by the log.
>
> Could anyone please give me a working minimal example for my
> environment (mapnik-0_5_0, WinXP, PostGIS1.3)?
>
> Thanx a lot,
>
> greetings from germany, Carl
> --
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> Browser-Versionen downloaden: http://www.gmx.net/de/go/browser
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