19k views

Creating equidistant points in QGIS?

I am trying to create points (new layer) at specific distance along the road (existing layer) in QGIS. Creating Regular points every meter at county level using ArcGIS Desktop? gives solution for ...
• 937
4k views

How to simplify a routable network?

I have a network graph that I need to simplify in the sense of reducing the number of edges. The idea would be to merge nodes that are located close together and remove the connecting short edges. ...
• 84.3k
21k views

Creating points based on distance and bearing from survey point using QGIS?

I am plotting witness tree data to calculate pre-settlement tree density. I have a shapefile with points along section lines (square miles) at each half mile. I am making another table that contains ...
• 89
8k views

Splitting line every x meters using QGIS? [duplicate]

I have a line that I ultimately want to split up into points. The points should be every 100 meter along the line. So I don't want to extract the nodes. Are there any Open Source (QGIS, Python) ...
• 8,034
2k views

Create normal vector and calculate distance between start point and intersection

I have one line-layer which pictures a street net and a point-layer which defines certain locations. Please see in the picture below: What I am trying to do is to create a normal vector through a ...
• 725
3k views

How to calculate 'off track' error from GPS data?

I'd like to analyse navigational accuracy, comparing planned transects with the actual track flown from GPS data. For example, the planned transects below (green) don't match perfectly with the ...
• 14.8k
2k views

Create Intersecting lines and remove dangles [closed]

I have 3 cases shown in the image. In all of them i want to intersect the lines and remove dangles using python in Qgis python console so afterwards i can make a plugin for this work in qgis.In case ...
2k views

Plotting points along line at specific distance value using PyQGIS?

I'm trying to figure out a way to plot points along a polyline at distances that I have in a .csv file (not a point layer with valid lat/long). There seem to be quite a few ways to create points ...
• 1,559
2k views

Redistribute linestring vertices to specified distance

I use a groundwater model program called GMS, and it has a very useful function "Redistribute vertices" (more info). I use this function all the time to both simplify and provide regular spacings ...
• 42.2k
2k views

Produce line from components, length and angle

I have a CSV file, or point data file which includes information about line vectors which I have previously calculated. This file is outlined as such: x, y, dx, dy, length, angle(east_from_north) 1,1,...
2k views

How does one modify selected geometry with a function in qgis python console?

My example use-case is that I want to redistribute vertices along lines as in: Redistribute linestring vertices to specified distance How to create points in a specified distance along the line in ...
• 1,699
589 views

QGIS Contour plugin: Creating complex isolines leads to isolated areas

I use the contour plugin (v1.1) within QGIS 2.4 to create contour lines. I have streets with different travel costs. I observe problems for streets with low travel costs if they are surrounded by ...
• 371
533 views

Is it possible to create points that represent lines in QGIS 2.8.Wien?

I want to create points to represent lines from a line layer. This is similar to creating points to represent polygons. Does anyone have an idea on any useful plugin or the best way to do this?
• 1,437