Tagged Questions
2
votes
2answers
148 views
How to create a multipart polygon?
I have two polygons that consist of two separate polygons/lines in QGIS). How can I make this into a multipart polygon, which consists of 1 line in QGIS?
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 ...
0
votes
2answers
188 views
How to densify a polyline according to a specific length? [duplicate]
Possible Duplicate:
Add vertices to lines
I am using QGis 1.8.0
I would like to densify a polilyne according to a particular length of segment (ex. 200 m). I know it is possible with other ...
3
votes
2answers
307 views
How to join lines in QGIS for later using “lines to poly”?
After successfully merging lines (using snapping) with merge_selected_features i got nice result - one merged line. Next thing was to make polygon from created merged line. Result is not nice - it ...
7
votes
2answers
618 views
How can I create random points along a polyline in QGIS?
I am trying to create random points along a polyline shapefile in QGIS. Basically, like the 'random points' tool in 'research tools' but for polylines instead of polygons.
I have tried converting ...
2
votes
1answer
489 views
Basic User Questions: Tracing a Border in QGIS
The project: I'm plotting a dilapidated cemetery, I'm using GPS waypoint data to plot the headstones in QGIS. The map I'm making is to show the orientation of the graves, and who is in them.
I ...
6
votes
5answers
725 views
How can I map a matrix of origins and destinations in QGIS?
I have a central point on a map, and I have other points in a separate layer (the location of a venue, and the origin cities of the venue visitors). Is there a plugin which would generate output ...
3
votes
3answers
426 views
How to create svg line style in QGIS?
I need to draw an telephone or energy lines as is done on the polish-core map. Thelephone line was drown by the polyline. I tried the SVG symbols, when I have a lot of single-lines, for each I 'put' ...
3
votes
2answers
448 views
Generate non-overlapping shapes from a buffer
I have a collection of points, and I need to generate shapes around these points.
Let's assume that these points are locations of offices and that the shapes are the 'area of responsibility' around ...
3
votes
6answers
4k views
How to divide a single polyline feature into multiple features based on points located on it?
I have a shape file that contains the bus route information for a city.
I want to do two things..
Merge all the existing rows so that just one feature represents all the routes...
I have a Points ...
7
votes
4answers
3k views
How to join lines in QGIS?
In QGIS, I have two lines. The endpoints are near each other, but not quite aligned. I'd like to turn the two lines into one, with the two endpoints merged into midpoints.
The closest I've been able ...
3
votes
2answers
453 views
How to find line length in QGIS while editing?
I am using QGIS (before, I used ArcView). I would like to know if there is any way during the editing phase of a vector (line or polygon) to know the length of the line (total and partial) that is ...
13
votes
2answers
1k views
How can I switch line direction in QGIS?
Something that is hopefully pretty easy.
I would like to be able to swap the direction of a polyline/line in QGIS. I made a custom tool to do this in MapInfo a couple of years ago, however I can't ...
