https://issues.qgis.org/https://issues.qgis.org/favicon.ico2011-09-30T02:51:34ZQGIS Issue TrackingQGIS Application - Bug report #4333: EPSG:27700 is interpreted as custom projectionhttps://issues.qgis.org/issues/4333?journal_id=257612011-09-30T02:51:34ZAnita Graseranitagraser@gmx.at
<ul><li><strong>Subject</strong> changed from <i>Not finding projection</i> to <i>EPSG:27700 is interpreted as custom projection</i></li></ul> QGIS Application - Bug report #4333: EPSG:27700 is interpreted as custom projectionhttps://issues.qgis.org/issues/4333?journal_id=257712011-09-30T03:15:34ZGiovanni Manghigiovanni.manghi@gmail.com
<ul><li><strong>Resolution</strong> set to <i>invalid</i></li><li><strong>File</strong> <a href="/attachments/download/3447/police.jpg">police.jpg</a> added</li><li><strong>Status</strong> changed from <i>Open</i> to <i>Closed</i></li></ul><p>The CRS of your shape and the EPSG27700 in QGIS do not match simply because the CRSs definitions in QGIS are the updated ones in the PROJ library, and those include parameters not available before. So the program do not make a perfect match, but the resulting custom CRSs are nevertheless valid, and they work. In your case the shape reprojects fine (see attached image, reprojected over a WGS84 WMS layer).</p>
<p>PS<br />WGS84 is not the default CRS in QGIS, it depends how you configure QGIS in the "options" menu.</p> QGIS Application - Bug report #4333: EPSG:27700 is interpreted as custom projectionhttps://issues.qgis.org/issues/4333?journal_id=257772011-09-30T07:31:50ZJonathan Moules
<ul><li><strong>File</strong> <a href="/attachments/download/3448/police.png">police.png</a> added</li></ul><p>I'm not going to pretend to understand that response, but:<br />"In your case the shape reprojects fine" - is wrong.<br />When I add that shapefile to a new document (which has wgs84 set because that's still my default projection), it does display, but everything about the projection is wrong. See attached police.png.<br />The scale is tens of thousands of degrees, the co-ordinates are 6 digits long (remember, this is lat and long), and the scale is a mind-numbingly huge number when it should be about 1:1million.</p> QGIS Application - Bug report #4333: EPSG:27700 is interpreted as custom projectionhttps://issues.qgis.org/issues/4333?journal_id=257782011-09-30T07:34:10ZGiovanni Manghigiovanni.manghi@gmail.com
<ul></ul><p>Jonathan Moules wrote:</p>
<blockquote>
<p>I'm not going to pretend to understand that response, but:<br />"In your case the shape reprojects fine" - is wrong.<br />When I add that shapefile to a new document (which has wgs84 set because that's still my default projection), it does display, but everything about the projection is wrong. See attached police.png.<br />The scale is tens of thousands of degrees, the co-ordinates are 6 digits long (remember, this is lat and long), and the scale is a mind-numbingly huge number when it should be about 1:1million.</p>
</blockquote>
<p>you need to enable <strong>on the fly reprojection</strong> in the project properties, after that it will be ok (the scale) and your layer will be reprojected in the <strong>project</strong> CRS.</p> QGIS Application - Bug report #4333: EPSG:27700 is interpreted as custom projectionhttps://issues.qgis.org/issues/4333?journal_id=257792011-09-30T07:39:01ZGiovanni Manghigiovanni.manghi@gmail.com
<ul><li><strong>File</strong> <a href="/attachments/download/3451/Screenshot.png">Screenshot.png</a> added</li><li><strong>File</strong> <a href="/attachments/download/3449/police2.jpg">police2.jpg</a> added</li><li><strong>File</strong> <a href="/attachments/download/3450/police3.jpg">police3.jpg</a> added</li></ul><p>Jonathan Moules wrote:</p>
<blockquote>
<p>I'm not going to pretend to understand that response, but:<br />"In your case the shape reprojects fine" - is wrong.<br />When I add that shapefile to a new document (which has wgs84 set because that's still my default projection), it does display, but everything about the projection is wrong. See attached police.png.<br />The scale is tens of thousands of degrees, the co-ordinates are 6 digits long (remember, this is lat and long), and the scale is a mind-numbingly huge number when it should be about 1:1million.</p>
</blockquote>
<p>see attached images</p>