Tagged Questions
1
vote
0answers
70 views
Line to Polygon via Polygonizer in QGIS
My question is in the same vein as this one.
I'm attempting to convert precipitation lines (Precipitación Media Anual) to a polygon for Mexico in QGIS using the Polygonizer plugin.
After running the ...
3
votes
3answers
242 views
How to extract POINT from a [LINE|MULTILINE]STRING
I'd like to create a vectorLayer in QGIS to display all the points that form a LINESTRING or a MULTILINESTRING stored in a PostGIS DB.
I think that I need to transform all points of LINESTRING (or ...
6
votes
1answer
106 views
How to see what lines have changed in an updated Shapefile?
I'm using my county's GIS data to update the roads in OpenStreetMap. I have a copy they published last year and one that was just published, and I'd like to find all the LineStrings that have either ...
2
votes
3answers
728 views
How to delete duplicate lines?
I was wondering if anyone could help. I have a tab file in MapInfo consisting of just polylines. Each is meant to have its own reference number, however some are duplicated (e.g two lines occupying ...
6
votes
2answers
1k views
How can I export a linestring to a GPX file in QGIS?
I have a linestring in a vector layer in QGIS. How can I expot/save this linestring as a GPX file?
I tried to select the linestring, then right click on the vector layer and choose "Save selection ...
3
votes
1answer
733 views
How can I transform a polygon to a linestring in QGIS?
I have a polygon, imported from a shapefile in QGIS. I would like transform it to a linestring instead so I can save it as a GPX file later. How can I transform a polygon to a linestring in QGIS?
