Ozodbek,

Try using the "world_merc.shp" demo files here:

http://bitbucket.org/springmeyer/tilelite/src/tip/demo/

To get those just download this:

http://bitbucket.org/springmeyer/tilelite/get/ad8d8e9a9a2c.zip

And find the set of files that make up the 'world_merc.shp' in the  
demo/ folder.

Dane

On Jan 28, 2010, at 3:35 AM, Ozodbek Ulmasov wrote:

> Artem, thanks for your reply, but I am beginner in Mapnik. Please
> explain it in detail
> I  have configured as following:
> installed proj4 as written in manual and setup following commands in  
> Python
>>>> from mapnik import Projection
>>>> Projection('+init=epsg:900913')
>
> Added this link ... into c:\prog\nad\epsg
> «900913» +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 +nadgri...@null +wktext +no_defs «»
>
>
> Anyway the map rendering is not correct as it must be.
>
>
> #### wms.py ####
> import sys
> from mapnik.ogcserver.wsgi import WSGIApp
> sys.path.append('c:/ms4w/Apache/htdocs/wms/')
>
> application = WSGIApp('c:/ms4w/Apache/htdocs/wms/ogcserver.conf')
>
> if __name__ == '__main__':
>    from wsgiref.simple_server import make_server
>    httpd = make_server('localhost', 8000, application)
>    print "Listening on port 8000...."
>    httpd.serve_forever()
>
> #### ogcserver.conf ####
> [server]
> module= xml_factory
> debug=1
> [service]
> title=MapnikOGC
> abstract=The Mapnik OGC Server Sample Configuration
> maxheight=2048
> maxwidth=2048
> # 3031 is an antarctica polar projection
> allowedepsgcodes=3031,4326,3395,900913
>
> onlineresource=http://localhost/
> fees=
> keywordlist=mapnik
> accessconstraints=
>
> [contact]
> contactperson=
> contactorganization=
> contactposition=
> addresstype=
> address=
> city=
> stateorprovince=
> postcode=
> country=
> contactvoicetelephone=
> contactelectronicmailaddress=
>
> #### xml_factory.py ####
>
> from mapnik.ogcserver.WMS import BaseWMSFactory
> from mapnik import *
>
> class WMSFactory(BaseWMSFactory):
>  def __init__(self):
>    BaseWMSFactory.__init__(self)
>    self.loadXML('c:/ms4w/Apache/htdocs/wms/population.xml')
>    self.finalize()
>       
> #### index.php ####
>
> <script src="http://localhost/OpenLayers/lib/OpenLayers.js";></script>
>
> <script type="text/javascript">
>        var map;
>
>        function init() {
>
>            var options = {
>                maxResolution: 156543.0339,
>                units: 'm',
>                projection: new OpenLayers.Projection("EPSG:900913"),
>                maxExtent: new OpenLayers.Bounds(-20037508.34,
> -20037508.34, 20037508.34, 20037508.34)
>                };
>
>            map = new OpenLayers.Map("map", options);
>            wms = new OpenLayers.Layer.WMS("Mapnik
> WMS","http://localhost:8000?";,
>                {
>                layers: '__all__',
>                format:'image/png',
>                bgcolor:'0x90B4D5',
>                //transparent:'TRUE'
>                },
>                {
>                gutter:1,
>                buffer:0,
>                ratio:1,
>                wrapDateLine: true,
>                isBaselayer:true,
>                singleTile:true,
>                transitionEffect:'resize'
>                }
>            );
>
>            map.addLayers([wms]);
>            map.fractionalZoom = true;
>            map.addLayers([wms]);
>            map.addControl(new OpenLayers.Control.Scale('scale'));
>            map.addControl(new  
> OpenLayers.Control.Permalink('permalink'));
>            map.addControl(new OpenLayers.Control.MousePosition());
>            map.addControl(new OpenLayers.Control.Navigation());
>            map.addControl(new OpenLayers.Control.PanZoom());
>            var ls = new OpenLayers.Control.LayerSwitcher()
>            map.addControl(ls);
>            ls.maximizeControl();
>            map.zoomToMaxExtent();
>            }
>    </script>
>
> #### population.xml ####
> <?xml version="1.0" encoding="utf-8"?>
> <!DOCTYPE Map>
> <!-- Sample Mapnik XML template by Dane Springmeyer -->
> <Map srs="+proj=latlong +datum=WGS84">
>
>  <Style name="population">
>
>     <Rule>
>      <!-- Built from Seven Class sequential YIGnBu from www.colorbrewer.org 
>  -->
>      <!-- Quantile breaks originally from QGIS layer classification  
> -->
>      <Filter>[POP2005] = 0 </Filter>
>      <PolygonSymbolizer>
>        <CssParameter name="fill">#ffffcc</CssParameter>
>      </PolygonSymbolizer>
>      <!-- Outlines for Antarctica look good -->
>      <LineSymbolizer>
>        <CssParameter name="stroke">black</CssParameter>
>        <CssParameter name="stroke-width">.1</CssParameter>
>      </LineSymbolizer>
>     </Rule>
>
>     <Rule>
>      <Filter>[POP2005] &gt; 0 and [POP2005] &lt; 15000</Filter>
>      <PolygonSymbolizer>
>        <CssParameter name="fill">#c7e9b4</CssParameter>
>      </PolygonSymbolizer>
>      <!-- Outlines for Antarctica look good -->
>      <LineSymbolizer>
>        <CssParameter name="stroke">black</CssParameter>
>        <CssParameter name="stroke-width">.1</CssParameter>
>      </LineSymbolizer>
>     </Rule>
>
>     <Rule>
>      <Filter>[POP2005] &gt;= 15000 and [POP2005] &lt; 255000</Filter>
>      <PolygonSymbolizer>
>        <CssParameter name="fill">#7fcdbb</CssParameter>
>      </PolygonSymbolizer>
>     </Rule>
>
>     <Rule>
>      <Filter>[POP2005] &gt;= 255000 and [POP2005] &lt; 1300000</ 
> Filter>
>      <PolygonSymbolizer>
>        <CssParameter name="fill">#1d91c0</CssParameter>
>      </PolygonSymbolizer>
>     </Rule>
>
>     <Rule>
>      <Filter>[POP2005] &gt;= 1300000 and [POP2005] &lt; 4320000</ 
> Filter>
>      <PolygonSymbolizer>
>        <CssParameter name="fill">#41b6c3</CssParameter>
>      </PolygonSymbolizer>
>     </Rule>
>
>     <Rule>
>      <Filter>[POP2005] &gt;= 4320000 and [POP2005] &lt; 9450000</ 
> Filter>
>      <PolygonSymbolizer>
>        <CssParameter name="fill">#225ea8</CssParameter>
>      </PolygonSymbolizer>
>     </Rule>
>
>     <Rule>
>      <Filter>[POP2005] &gt;= 9450000 and [POP2005] &lt; 25650000</ 
> Filter>
>      <PolygonSymbolizer>
>        <CssParameter name="fill">#225ea8</CssParameter>
>      </PolygonSymbolizer>
>     </Rule>
>
>     <Rule>
>      <Filter>[POP2005] &gt;= 25650000 and [POP2005] &lt; 1134000000</ 
> Filter>
>      <PolygonSymbolizer>
>        <CssParameter name="fill">#122F7F</CssParameter>
>      </PolygonSymbolizer>
>     </Rule>
>
>     <Rule>
>      <ElseFilter/> <!-- This will catch all other values - in this
> case just India and China -->
>      <!-- A dark red polygon fill and black outline is used here to
> highlight these two countries -->
>      <PolygonSymbolizer>
>        <CssParameter name="fill">darkred</CssParameter>
>      </PolygonSymbolizer>
>      <LineSymbolizer>
>        <CssParameter name="stroke">black</CssParameter>
>        <CssParameter name="stroke-width">.7</CssParameter>
>      </LineSymbolizer>
>     </Rule>
>
>   </Style>
>
>   <Style name="countries_label">
>     <Rule>
>      <!--  Only label those countries with over 9 Million People -->
>      <!--  Note: Halo and Fill are reversed to try to make them  
> subtle -->
>      <Filter>[POP2005] &gt;= 4320000 and [POP2005] &lt; 9450000</ 
> Filter>
>      <TextSymbolizer name="NAME" face_name="DejaVu Sans Bold"
> size="7" fill="black" halo_fill= "#DFDBE3" halo_radius="1"
> wrap_width="20" spacing="5" allow_overlap="false" avoid_edges="false"
> min_distance="10"/>
>     </Rule>
>
>     <Rule>
>      <!--  Only label those countries with over 9 Million People -->
>      <!--  Note: Halo and Fill are reversed to try to make them  
> subtle -->
>      <Filter>[POP2005] &gt;= 9450000 and [POP2005] &lt; 25650000</ 
> Filter>
>      <TextSymbolizer name="NAME" face_name="DejaVu Sans Book"
> size="9" fill="black" halo_fill= "#DFDBE3" halo_radius="1"
> wrap_width="20" spacing="5" allow_overlap="false" avoid_edges="false"
> min_distance="10"/>
>     </Rule>
>
>     <Rule>
>      <!--  Those with over 25 Million get larger labels -->
>      <Filter>[POP2005] &gt;= 25650000 and [POP2005] &lt; 1134000000</ 
> Filter>
>      <TextSymbolizer name="NAME" face_name="DejaVu Sans Book"
> size="12" fill="white" halo_fill= "#2E2F39" halo_radius="1"
> wrap_width="20" spacing="5" allow_overlap="false" avoid_edges="true"
> min_distance="10"/>
>     </Rule>
>
>     <Rule>
>      <!--  Those with over 25 Million get larger labels -->
>      <!--  Note: allow_overlap is true here to allow India to sneak  
> through -->
>      <Filter>[POP2005] &gt;= 1134000000</Filter>
>      <TextSymbolizer name="NAME" face_name="DejaVu Sans Book"
> size="15" fill="white" halo_fill= "black" halo_radius="1"
> wrap_width="20" spacing="5" allow_overlap="true" avoid_edges="true"
> min_distance="10"/>
>     </Rule>
>  </Style>
>
>  <Layer name="countries" status="on" queryable="true">
>    <!-- Style order determines layering hierarchy -->
>    <!-- Labels go on top so they are listed second -->
>    <StyleName>population</StyleName>
>    <Datasource>
>      <Parameter name="type">shape</Parameter>
>      <Parameter
> name="file">c:/ms4w/Apache/htdocs/wms/data/ 
> TM_WORLD_BORDERS_SIMPL-0.2</Parameter>
>    </Datasource>
>  </Layer>
>
>  <Layer name="countries_l" status="on" queryable="true">
>    <!-- Style order determines layering hierarchy -->
>    <!-- Labels go on top so they are listed second -->
>    <StyleName>countries_label</StyleName>
>    <Datasource>
>      <Parameter name="type">shape</Parameter>
>      <Parameter
> name="file">c:/ms4w/Apache/htdocs/wms/data/ 
> TM_WORLD_BORDERS_SIMPL-0.2</Parameter>
>    </Datasource>
>  </Layer>
> </Map>
>
> On 1/28/10, Artem Pavlenko <[email protected]> wrote:
>> Hi Ozodbek,
>>
>> You're projecting from Geographical (Lon/Lat) WGS84 coordinate system
>> to spherical Mercator (spheroid not an ellipsoid) , right? In this
>> process you're getting coordinates which are outside of the valid
>> longitude range (-180,180). The workaround depends on your
>> requirements. Try using Mercator with WGS84 ellipsoid, or pre-process
>> your original dataset to use spheroid and clip all features to the
>> extent which will keep proj4 happy e.g
>>
>> -180,-85,180,85
>>
>> We're aware of this issue and current behaviour is far from ideal.
>> This is something we're hoping to address in upcoming releases.
>>
>> Regards,
>> Artem
>>
>>
>> 2010/1/28 Ozodbek Ulmasov <[email protected]>:
>>> Map was shown incorrect when I opened it in browser.
>>> To check it please visit this link http://max.uz/mapnik.gif
>>> I also noticed disappearing of layers when zooming.
>>> The same problem occures with other maps.
>>> I really need your help, can you please suggest me how can I solve  
>>> the
>>> problems.
>>>
>>> Best regards
>>> Ozodbek Ulmasov
>>> _______________________________________________
>>> Mapnik-users mailing list
>>> [email protected]
>>> https://lists.berlios.de/mailman/listinfo/mapnik-users
>>>
>>
>
>
> -- 
> ------------------------------------------------------
> Ozodbek Ulmasov
> Manager
>
> Newmax Technologies LLC
> Uzbekistan, Tashkent
> Parkentskaya str. 89b, 700007
> Tel: (+99897) 3447775
>      (+99871) 1401515
> Fax: (+99871) 1401515
> E-mail: [email protected]
> _______________________________________________
> Mapnik-users mailing list
> [email protected]
> https://lists.berlios.de/mailman/listinfo/mapnik-users

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