Re: [geos-devel] [GEOS] #974: Union of Polylines results in additional segments

[GEOS]

#974: Union of Polylines results in additional segments
--+---
 Reporter:  jerryfaust|   Owner:  geos-devel@…
 Type:  defect|  Status:  closed
 Priority:  minor |   Milestone:
Component:  Default   | Version:  3.4.2
 Severity:  Unassigned|  Resolution:  invalid
 Keywords:  UNION UNARYUNION  |
--+---
Changes (by komzpa):

 * status:  new => closed
 * resolution:   => invalid


Comment:

 Thanks for the update. Have a good day.

-- 
Ticket URL: 
GEOS 
GEOS (Geometry Engine - Open Source) is a C++ port of the Java Topology Suite 
(JTS).
___
geos-devel mailing list
geos-devel@lists.osgeo.org
https://lists.osgeo.org/mailman/listinfo/geos-devel

Re: [geos-devel] [GEOS] #974: Union of Polylines results in additional segments

[GEOS]

#974: Union of Polylines results in additional segments
--+---
 Reporter:  jerryfaust|   Owner:  geos-devel@…
 Type:  defect|  Status:  new
 Priority:  minor |   Milestone:
Component:  Default   | Version:  3.4.2
 Severity:  Unassigned|  Resolution:
 Keywords:  UNION UNARYUNION  |
--+---

Comment (by jerryfaust):

 Thank you for the feedback.

 I walked through the process again and found MY error.  During one of the
 steps in my process, while reprojecting the points of the multi-part line,
 I lost the 'Parts', so it became an oddly connected single linestring.

 Thanks again.

-- 
Ticket URL: 
GEOS 
GEOS (Geometry Engine - Open Source) is a C++ port of the Java Topology Suite 
(JTS).
___
geos-devel mailing list
geos-devel@lists.osgeo.org
https://lists.osgeo.org/mailman/listinfo/geos-devel

Re: [geos-devel] [GEOS] #974: Union of Polylines results in additional segments

[GEOS]

#974: Union of Polylines results in additional segments
--+---
 Reporter:  jerryfaust|   Owner:  geos-devel@…
 Type:  defect|  Status:  new
 Priority:  minor |   Milestone:
Component:  Default   | Version:  3.4.2
 Severity:  Unassigned|  Resolution:
 Keywords:  UNION UNARYUNION  |
--+---

Comment (by mdavis):

 this seems like a straightforward case for unioning lines, so it's very
 unlikely the problem is in GEOS.  It's more likely to be caused by how
 GEOS is called.  This has the appearance of a situation where the client
 code is providing the lines as a single list of coordinates, rather than a
 set of individual linestrings.

 If possible please post a code snippet or even better a self-contained
 unit test showing the behaviour.

-- 
Ticket URL: 
GEOS 
GEOS (Geometry Engine - Open Source) is a C++ port of the Java Topology Suite 
(JTS).
___
geos-devel mailing list
geos-devel@lists.osgeo.org
https://lists.osgeo.org/mailman/listinfo/geos-devel

Re: [geos-devel] [GEOS] #974: Union of Polylines results in additional segments

[GEOS]

#974: Union of Polylines results in additional segments
--+---
 Reporter:  jerryfaust|   Owner:  geos-devel@…
 Type:  defect|  Status:  new
 Priority:  minor |   Milestone:
Component:  Default   | Version:  3.4.2
 Severity:  Unassigned|  Resolution:
 Keywords:  UNION UNARYUNION  |
--+---

Comment (by komzpa):

 Hi,

 Can you share a snippet of code how you do it?
 (Coming from PostGIS land this looks like ST_MakeLine GEOS analogue used
 instead of ST_Union)

 I haven't seen this behavior accessing GEOS via PostGIS.

-- 
Ticket URL: 
GEOS 
GEOS (Geometry Engine - Open Source) is a C++ port of the Java Topology Suite 
(JTS).
___
geos-devel mailing list
geos-devel@lists.osgeo.org
https://lists.osgeo.org/mailman/listinfo/geos-devel

Re: [geos-devel] [GEOS] #974: Union of Polylines results in additional segments

[GEOS]

#974: Union of Polylines results in additional segments
--+---
 Reporter:  jerryfaust|   Owner:  geos-devel@…
 Type:  defect|  Status:  new
 Priority:  minor |   Milestone:
Component:  Default   | Version:  3.4.2
 Severity:  Unassigned|  Resolution:
 Keywords:  UNION UNARYUNION  |
--+---
Changes (by jerryfaust):

 * Attachment "Unioned Streets.PNG" added.


-- 
Ticket URL: 
GEOS 
GEOS (Geometry Engine - Open Source) is a C++ port of the Java Topology Suite 
(JTS).
___
geos-devel mailing list
geos-devel@lists.osgeo.org
https://lists.osgeo.org/mailman/listinfo/geos-devel

Re: [geos-devel] [GEOS] #974: Union of Polylines results in additional segments

[GEOS]

#974: Union of Polylines results in additional segments
--+---
 Reporter:  jerryfaust|   Owner:  geos-devel@…
 Type:  defect|  Status:  new
 Priority:  minor |   Milestone:
Component:  Default   | Version:  3.4.2
 Severity:  Unassigned|  Resolution:
 Keywords:  UNION UNARYUNION  |
--+---
Changes (by jerryfaust):

 * Attachment "Circular Container.PNG" added.


-- 
Ticket URL: 
GEOS 
GEOS (Geometry Engine - Open Source) is a C++ port of the Java Topology Suite 
(JTS).
___
geos-devel mailing list
geos-devel@lists.osgeo.org
https://lists.osgeo.org/mailman/listinfo/geos-devel