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<p>Hi,</p>
<p>I second Even argument and I would prefer to change QGIS
implementation. It does not make sense to have QGIS WKT strings
not compatible with other Python tools (based on GEOS/JTS, like
shapely, for example) and ogr.</p>
<p>>>> import shapely<br>
>>> shapely.to_wkt(shapely.Point(0, 0, 0))<br>
'POINT Z (0 0 0)'<br>
>>> shapely.from_wkt('POINT Z (0 0 0)')<br>
<POINT Z (0 0 0)><br>
<br>
</p>
<p>Regards,</p>
<p>Jorge Gustavo<br>
</p>
On 06/07/24 07:56, Even Rouault via QGIS-Developer wrote:<br>
<blockquote type="cite" cite="mid:1c6da67d-00cc-43db-9351-35815d353e19@spatialys.com">
Hi,
<blockquote type="cite" cite="mid:CAB28Ashgv1AX07LMiB74VTuN6d84bQW3751qipwoxh9HNkxPeg@mail.gmail.com">
<div dir="auto">
<div dir="auto"><br>
</div>
<div dir="auto">Both formats are compliant with the WKT
specifications.<br>
</div>
</div>
</blockquote>
<p>Are they? I may have missed something in the Simple Features
spec, but looking at <a class="moz-txt-link-freetext" href="https://portal.ogc.org/files/?artifact_id=25355" moz-do-not-send="true">https://portal.ogc.org/files/?artifact_id=25355</a>
, I can't see where it would allow the form {geometryTypeName}Z
without a space between {geometryTypeName} and Z. <br>
</p>
<p>For example the BNF at page 56 shows:</p>
<p><point z tagged text> ::= point z <point z text></p>
<p>The examples at page 62 also show a space.<br>
</p>
<p>Even<br>
</p>
<blockquote type="cite" cite="mid:CAB28Ashgv1AX07LMiB74VTuN6d84bQW3751qipwoxh9HNkxPeg@mail.gmail.com">
<div dir="auto">
<div dir="auto"><br>
</div>
<div dir="auto">Nyall</div>
<div dir="auto"><br>
</div>
<div dir="auto">
<div class="gmail_quote">
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <br>
A minimal example is below. Executing it will return an
exception: <br>
"RuntimeError: OGR Error: Corrupt data"<br>
<br>
from osgeo import ogr<br>
<br>
qgis_geometyry = QgsGeometry().fromWkt("POINT Z (0 0
0)")<br>
wkt = qgis_geometyry.asWkt() # 'PointZ (0 0 0)'<br>
ogr.CreateGeometryFromWkt(wkt)<br>
<br>
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