Bug report #9423
QgsGeometry.asMultiPoint() returns wrong values
| Status: | Closed | ||
|---|---|---|---|
| Priority: | Severe/Regression | ||
| Assignee: | - | ||
| Category: | Vectors | ||
| Affected QGIS version: | 2.0.1 | Regression?: | No |
| Operating System: | Easy fix?: | No | |
| Pull Request or Patch supplied: | No | Resolution: | |
| Crashes QGIS or corrupts data: | No | Copied to github as #: | 18017 |
Description
Tested with this code:
>>> geom = QgsGeometry.fromWkt("MULTIPOINT (10 30, 40 20, 30 10, 20 10)")
>>> geom.isMultipart()
True
>>> geom.wkbType()
4
>>> geom.exportToWkt()
u'MULTIPOINT(10 30, 40 20, 30 10, 20 10)'
>>> geom.asMultiPoint()
[(2.07681e-317,2.13236e-314), (7.8611e-304,0), (3.25372e-319,3.48771e-310), (4.27265e-306,0)]
Got wrong values!
In cases of other types, the function returns expected values:
>>> QgsGeometry.fromWkt("POINT (10 30)").asPoint()
(10,30)
>>> QgsGeometry.fromWkt("LINESTRING (10 10, 20 10, 30 10)").asPolyline()
[(10,10), (20,10), (30,10)]
>>> QgsGeometry.fromWkt("MULTILINESTRING ((10 10, 20 10, 30 10), (10 30, 20 20, 30 10))").asMultiPolyline()
[[(10,10), (20,10), (30,10)], [(10,30), (20,20), (30,10)]]
>>> QgsGeometry.fromWkt("POLYGON ((10 10, 20 10, 20 20,10 10))").asPolygon()
[[(10,10), (20,10), (20,20), (10,10)]]
>>> QgsGeometry.fromWkt("MULTIPOLYGON (((10 10, 20 10, 20 20,10 10)), ((20 20, 30 20, 30 30,20 20)))").asMultiPolygon()
[[[(10,10), (20,10), (20,20), (10,10)]], [[(20,20), (30,20), (30,30), (20,20)]]]
With 1.8, returns expected values:
>>> QgsGeometry.fromWkt("MULTIPOINT (10 30, 40 20, 30 10, 20 10)").asMultiPoint()
[(10,30), (40,20), (30,10), (20,10)]
So this is a regression.
Associated revisions
fix QgsGeometry::asMultiPoint() (followup 6bbd17c2; fixes #9423)
History
#1
Updated by Minoru Akagi over 10 years ago
QGIS 2.0.1 also returns correct values. I get wrong results with master version (eaf5725).
#2
Updated by Jürgen Fischer over 10 years ago
- Status changed from Open to Closed
Fixed in changeset 781e34a5bc690df4c1868bbc1b35cfdda0eb25da.