springmeyer

#!/usr/bin/env python
import os
import sys
from lxml import etree
from lxml import objectify
    
keys = []

if __name__ == "__main__":
    

springmeyer

# turn a django model into a mapnik datasource
def model_to_mapnik_ds(model,geom_name=None):
    params = {'user':settings.DATABASE_USER,
        'dbname':settings.DATABASE_NAME,
        'password':settings.DATABASE_PASSWORD,
        'user':settings.DATABASE_USER
        }
    if geom_name:
        geom_field = [f for f in model._meta.fields if f.name == geom_name][0]    
    else:

springmeyer

            <Parameter name="table"><![CDATA[
                (SELECT *,
                        (CASE WHEN round(way_area * 1000000) >= 20 THEN 'large'
                              WHEN round(way_area * 1000000) >= 1 THEN 'medium'
                              ELSE 'small' END) AS size,
                        REGEXP_REPLACE(UPPER(name), '(.)', E'\\1\xC2\xA0\xC2\xA0', 'g') AS name_stretched
                 FROM planet_osm_polygon
                 WHERE building IS NOT NULL
                 ORDER BY z_order ASC, way_area DESC) AS citylike]]></Parameter>

springmeyer

<Map bgcolor="#8cb6d3" srs="+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +no_defs +over">
    <Style name="line style 1">
        <Rule><MaxScaleDenominator>99999</MaxScaleDenominator><LineSymbolizer><CssParameter name="stroke-width">13.0</CssParameter><CssParameter name="stroke">#a1cbea</CssParameter><CssParameter name="stroke-linejoin">round</CssParameter></LineSymbolizer></Rule>
        <Rule><MinScaleDenominator>100000</MinScaleDenominator><LineSymbolizer><CssParameter name="stroke-width">9.0</CssParameter><CssParameter name="stroke">#a1cbea</CssParameter><CssParameter name="stroke-linejoin">round</CssParameter></LineSymbolizer></Rule>
        </Style>
    <Layer name="layer 2" srs="+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +no_defs +over" status="on">
        <StyleName>line style 1</StyleName>
        <Datasource>
            <Parameter name="type">shape</Parameter>
         

springmeyer

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