[Geoserver-devel] [JIRA] (GEOS-8357) Incorrect render of buffer zones

GeoServer GeoServer Developer
1

alexandr bobrov created an issue

GeoServer / BugGEOS-8357

Incorrect render of buffer zones

Issue Type:

BugBug

Affects Versions:

2.11.2

Assignee:

Unassigned

Attachments:

crones.sld, wrong_crones.png

Components:

WMS

Created:

20/Oct/17 9:28 AM

Environment:

postgresql 9.5, windows server 2012 r2 standart

Priority:

MediumMedium

Reporter:

alexandr bobrov

Hello.

There is a base with trees. Trees may be single or multitrunk. Geometry of trees stored as point or multipoint. Also trees has crone diameter and sort id.

I want displayed map of crones. I create layer with such sql view

select 
  id,
  sort,
  ST_Buffer(geom::public.geography ,diametr_cron/2)::public.geometry as geom
FROM trees

sld like this (full sld in attachment):

<?xml version="1.0" encoding="WINDOWS-1251"?>
<sld:StyledLayerDescriptor xmlns="http://www.opengis.net/sld" xmlns:sld="http://www.opengis.net/sld" xmlns:ogc="http://www.opengis.net/ogc" xmlns:gml="http://www.opengis.net/gml" version="1.0.0">
  <sld:UserLayer>
    <sld:UserStyle><sld:Name>crones</sld:Name><sld:Title/>
      <sld:FeatureTypeStyle>
        <sld:Rule>
          <sld:Name>crone fill</sld:Name>
          <sld:PolygonSymbolizer>
            <sld:Fill>
              <sld:CssParameter name="fill">#7a9083</sld:CssParameter>
              <sld:CssParameter name="fill-opacity">0.8</sld:CssParameter>
            </sld:Fill>
          </sld:PolygonSymbolizer>
        </sld:Rule>
        <sld:Rule>
          <sld:Name>crone border</sld:Name>
          <sld:LineSymbolizer>
            <sld:Stroke>
              <sld:CssParameter name="stroke">#000000</sld:CssParameter>
              <sld:CssParameter name="stroke-width">0.5</sld:CssParameter>
            </sld:Stroke>
          </sld:LineSymbolizer>
        </sld:Rule>
      </sld:FeatureTypeStyle>
    </sld:UserStyle>
  </sld:UserLayer>
</sld:StyledLayerDescriptor>

Attached picture demonstrate sample of wrong rendering.

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2

Using a LineSymbolizer on a polygon can lead to unexpected results, try just adding the stroke to the polygon symbolizer and deleting the second rule.

Ian

···

On 20 October 2017 at 08:28, alexandr bobrov (JIRA) <jira@anonymised.com> wrote:

alexandr bobrov created an issue

GeoServer / BugGEOS-8357

Incorrect render of buffer zones

Issue Type:

BugBug

Affects Versions:

2.11.2

Assignee:

Unassigned

Attachments:

crones.sld, wrong_crones.png

Components:

WMS

Created:

20/Oct/17 9:28 AM

Environment:

postgresql 9.5, windows server 2012 r2 standart

Priority:

MediumMedium

Reporter:

alexandr bobrov

Hello.

There is a base with trees. Trees may be single or multitrunk. Geometry of trees stored as point or multipoint. Also trees has crone diameter and sort id.

I want displayed map of crones. I create layer with such sql view

select 
  id,
  sort,
  ST_Buffer(geom::public.geography ,diametr_cron/2)::public.geometry as geom
FROM trees

sld like this (full sld in attachment):

&lt;?xml version="1.0" encoding="WINDOWS-1251"?&gt;
&lt;sld:StyledLayerDescriptor xmlns="[http://www.opengis.net/sld](http://www.opengis.net/sld)" xmlns:sld="[http://www.opengis.net/sld](http://www.opengis.net/sld)" xmlns:ogc="[http://www.opengis.net/ogc](http://www.opengis.net/ogc)" xmlns:gml="[http://www.opengis.net/gml](http://www.opengis.net/gml)" version="1.0.0"&gt;
  &lt;sld:UserLayer&gt;
    &lt;sld:UserStyle&gt;&lt;sld:Name&gt;crones&lt;/sld:Name&gt;&lt;sld:Title/&gt;
      &lt;sld:FeatureTypeStyle&gt;
        &lt;sld:Rule&gt;
          &lt;sld:Name&gt;crone fill&lt;/sld:Name&gt;
          &lt;sld:PolygonSymbolizer&gt;
            &lt;sld:Fill&gt;
              &lt;sld:CssParameter name="fill"&gt;#7a9083&lt;/sld:CssParameter&gt;
              &lt;sld:CssParameter name="fill-opacity"&gt;0.8&lt;/sld:CssParameter&gt;
            &lt;/sld:Fill&gt;
          &lt;/sld:PolygonSymbolizer&gt;
        &lt;/sld:Rule&gt;
        &lt;sld:Rule&gt;
          &lt;sld:Name&gt;crone border&lt;/sld:Name&gt;
          &lt;sld:LineSymbolizer&gt;
            &lt;sld:Stroke&gt;
              &lt;sld:CssParameter name="stroke"&gt;#000000&lt;/sld:CssParameter&gt;
              &lt;sld:CssParameter name="stroke-width"&gt;0.5&lt;/sld:CssParameter&gt;
            &lt;/sld:Stroke&gt;
          &lt;/sld:LineSymbolizer&gt;
        &lt;/sld:Rule&gt;
      &lt;/sld:FeatureTypeStyle&gt;
    &lt;/sld:UserStyle&gt;
  &lt;/sld:UserLayer&gt;
&lt;/sld:StyledLayerDescriptor&gt;

Attached picture demonstrate sample of wrong rendering.

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Ian Turton