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[Geotools-devel] [jira] (GEOT-4285) Forcing Source CRS prevents RenderingTransformation output from being rendered
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From: Martin D. (JIRA) <ji...@co...> - 2012-10-10 16:53:43
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<a class="user-hover" rel="mdavis" id="email_mdavis" href="https://jira.codehaus.org/secure/ViewProfile.jspa?name=mdavis" style="color:#005500;">Martin Davis</a>
created <img src="https://jira.codehaus.org/images/icons/bug.gif" height="16" width="16" border="0" align="absmiddle" alt="Bug"> <a style='color:#005500;text-decoration:none;' href='https://jira.codehaus.org/browse/GEOT-4285'>GEOT-4285</a>
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<a style='color:#005500;text-decoration:none;' href='https://jira.codehaus.org/browse/GEOT-4285'><strong>Forcing Source CRS prevents RenderingTransformation output from being rendered</strong></a>
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<strong style="font-weight:normal;color:#505050;">Issue Type:</strong>
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<img src="https://jira.codehaus.org/images/icons/bug.gif" height="16" width="16" border="0" align="absmiddle" alt="Bug"> Bug
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<strong style="font-weight:normal;color:#505050;">Affects Versions:</strong>
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8.2 </td>
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<strong style="font-weight:normal;color:#505050;">Assignee:</strong>
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<a class="user-hover" rel="aaime" id="email_aaime" href="https://jira.codehaus.org/secure/ViewProfile.jspa?name=aaime" style="color:#005500;">Andrea Aime</a>
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<strong style="font-weight:normal;color:#505050;">Components:</strong>
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render </td>
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<strong style="font-weight:normal;color:#505050;">Created:</strong>
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10/Oct/12 11:53 AM
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<strong style="font-weight:normal;color:#505050;">Description:</strong>
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<p style='margin-top:0;margin-bottom:10px;'>The method prepFeatureCollection in StreamingRenderer is apparently intended to force the source CRS onto data which is missing a CRS. However, the situation where the data already has a CRS equal to the dest CRS is not correctly handled (the source CRS is forced in this case). This causes the features to be ignored by the rendering, since they no longer lie in the output extent. </p>
<p style='margin-top:0;margin-bottom:10px;'>This can occur when a RenderingTransformation produces an output feature collection which already has the dest CRS. An example is chaining the Contour RT to the Heatmap RT. The Heatmap RT produces a raster output in the dest CRS, and the Contour RT preserves this for the output features. The output features are not displayed, because they are forced to be in the wrong CRS.</p>
<p style='margin-top:0;margin-bottom:10px;'>The fix may be to check if the feature collection is in the dest CRS, and if so do not change the CRS.</p>
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<strong style="font-weight:normal;color:#505050;">Project:</strong>
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<a style="color:#005500;" href="https://jira.codehaus.org/browse/GEOT">GeoTools</a>
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<strong style="font-weight:normal;color:#505050;">Priority:</strong>
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<img src="https://jira.codehaus.org/images/icons/priority_major.gif" height="16" width="16" border="0" align="absmiddle" alt="Major"> Major
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<strong style="font-weight:normal;color:#505050;">Reporter:</strong>
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<a class="user-hover" rel="mdavis" id="email_mdavis" href="https://jira.codehaus.org/secure/ViewProfile.jspa?name=mdavis" style="color:#005500;">Martin Davis</a>
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