[udig-devel] Shapefiles, marks and zoom

[Jesse Eichar]

Use my SLD as a template and let me know if you still have problems.   
I tried it out and it seems to be working.

Jesse

On 3-Nov-06, at 6:07 AM, Schneider, Michael wrote:

> Hi again,
>
> in addition to my mail some hours ago I found that I also have  
> problems when using sld:Mark (see my earlier mail) or when I do not  
> use any sld file at all:
>   The marks disappear when zooming in to a certain amount.
>
> This is part of the sld file I'm using, so that should not be the  
> reason:
>                      
> <sld:MaxScaleDenominator>1.7976931348623157E308</ 
> sld:MaxScaleDenominator>
> The scale when the marks disappear is not always the same for a  
> certain set of marks. One time all marks disappear when zooming in  
> deeper than 1:2 Mio., another time they disappear not before  
> zooming in to 1:750000.
>
> I also noticed that the marks disappear during panning when because  
> of panning the zoom reaches the above mentioned value.
>
> All that happens even when I only have 1 mark.
>
> I did not see anything about that in the shapefile specs. I specify  
> a bounding box with x and y set, but z and M (measure) set to 0.  
> And ZoomToLayer works fine for the shapefile layer.
>
> Is there anything to pay attention at with respect to the dbf file?  
> What else might be wrong with me?
>
> Any hints welcome, cheers
>   Michael
>
>
>
> Von: udig-devel-bounces at lists.refractions.net [mailto:udig-devel- 
> bounces at lists.refractions.net] Im Auftrag von Schneider, Michael
> Gesendet: Freitag, 3. November 2006 10:31
> An: User-friendly Desktop Internet GIS
> Betreff: [udig-devel] Shapefiles and sld:ExternalGraphic
>
> Hi,
>
> I'm using uDIG 1.1 RC4 and in my program I create a shapefile of  
> type MultiPoint (shape type 8). Using this shapefile with uDIG  
> works fine as long as I use a sld file with sld:Mark: All of my  
> about 50 points are shown.
>
> But when I try to use a sld file with sld:ExternalGraphic only 1 of  
> those is shown although more than 1 are in the range of the  
> viewport. When that one currently shown is not in the viewport  
> anymore (because of panning or zooming in) another one is shown.  
> But as I said always only 1 at a time is displayed.
>
> Here are the diffs of the two sld files:
>
> Vergleichen von (<)D:\Projekte\uDIG\data\pin.sld (2310l Byte)
>  mit (>)D:\Projekte\uDIG\data\hits.sld (3959l Byte)
>
> 25,28c25,55
> <                             <sld:ExternalGraphic>
> <                                 <sld:OnlineResource  
> xmlns:xlink="http://www.w3.org/1999/xlink" xlink:type="simple"  
> xlink:href="file:/D:/Projekte/uDIG/data/pin.gif"/>
>
> <                                 <sld:Format>image/gif</sld:Format>
> <                             </sld:ExternalGraphic>
> ---
> >                             <sld:Mark>
> >                                 <sld:WellKnownName>x</ 
> sld:WellKnownName>
> >                                 <sld:Fill>
> >                                     <sld:CssParameter name="fill">
> >                                         <ogc:Literal>#FF0000</ 
> ogc:Literal>
> >                                     </sld:CssParameter>
> >                                     <sld:CssParameter name="fill- 
> opacity">
> >                                         <ogc:Literal>0.75</ 
> ogc:Literal>
> >                                     </sld:CssParameter>
> >                                 </sld:Fill>
> >                                 <sld:Stroke>
> >                                     <sld:CssParameter name="stroke">
> >                                         <ogc:Literal>#000000</ 
> ogc:Literal>
> >                                     </sld:CssParameter>
> >                                     <sld:CssParameter  
> name="stroke-linecap">
> >                                         <ogc:Literal>butt</ 
> ogc:Literal>
> >                                     </sld:CssParameter>
> >                                     <sld:CssParameter  
> name="stroke-linejoin">
> >                                         <ogc:Literal>miter</ 
> ogc:Literal>
> >                                     </sld:CssParameter>
> >                                     <sld:CssParameter  
> name="stroke-opacity">
> >                                         <ogc:Literal>1.0</ 
> ogc:Literal>
> >                                     </sld:CssParameter>
> >                                     <sld:CssParameter  
> name="stroke-width">
> >                                         <ogc:Literal>2.0</ 
> ogc:Literal>
> >                                     </sld:CssParameter>
> >                                     <sld:CssParameter  
> name="stroke-dashoffset">
> >                                         <ogc:Literal>0.0</ 
> ogc:Literal>
> >                                     </sld:CssParameter>
> >                                 </sld:Stroke>
> >                             </sld:Mark>
> 33c60
> <                                 <ogc:Literal>75.0</ogc:Literal>
> ---
> >                                 <ogc:Literal>20.0</ogc:Literal>
>
> Any hints where I do something wrong?
>
> Cheers
>   Michael
>
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> _______________________________________________
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