All Questions
13 questions
0
votes
1
answer
94
views
QGIS Simplifying polygons with keeping points inside of them
I'm creating a processing where I do calculations on address points inside of counties.
I need to generalise county polygons in order to make my processing faster.
How do I make sure that address ...
- 11
2
votes
1
answer
487
views
Generalizing line with angle rules in QGIS
I'm looking for an automatic way to generalize/simplify vector lines in QGIS like the following picture :
I would like the generalization to include only the angles indicated by the small star on the ...
- 323
8
votes
1
answer
1k
views
Simplifying label geometry in QGIS
I have a bunch of linear data (trails) stored in PostGIS and visualized in QGIS for cartographic production. Many trails have switchbacks, and are generally very "weavy", which makes for difficult ...
- 23.2k
2
votes
0
answers
170
views
Problem when using Simplify Tool in QGIS
I want to simplify district borders. As I got bad results when using polygons I converted those polygons into lines but I still have the same problem that I get new vertexes or corners I don't want.
...
- 69
3
votes
3
answers
339
views
Generalising lines of varying detail in QGIS
I am trying to generalise a line in QGIS so that I can export it as a vector without it having an unnecessarily huge file size. The line shows the GPS track of a road trip, and as such varies between ...
- 263
4
votes
2
answers
949
views
Wang's Bend Simplify in QGIS
I am looking for an alternative to ESRI's Simplify Polygons - Bend Simplify method (I only have a Basic License).
Is there an existing QGIS plugin which supports this specific polygon simplifying ...
- 41
6
votes
3
answers
4k
views
Simplifying multiple lines to create central axis?
I have a layer with railway lines, downloaded from OpenStreetMap. Every single track is represented separately, so at trainstations, you have several parallel lines, as well as sidelines that lead to ...
- 74.9k
1
vote
0
answers
104
views
Convex boundary of polygon [closed]
Is there any tool that can help me with my problem?
I have polygons looking like this :
And what I want, is to simplify or gain convex boundary of such polygons.
I tried Simplify Polygon in ArcMap, ...
- 19
1
vote
1
answer
124
views
Remove small interstices on the edges of a polygone
How can I remove the white interstices on the edges (and interior) of a polygone or polyline, as represented in the first figure below? I want to get smooth and continuous edges, capturing the global ...
- 1,154
3
votes
1
answer
185
views
qgis: generalisation & covex - how to? what plugin?
I'm looking for a way to generalize and simlify polygon to remove "internal spikes" as ilustrated below. The violet in input and green expected poligon.
1
vote
0
answers
124
views
Simplify geometry of multiple features without losing shape [duplicate]
I am simplifying administrative boundaries using a high simplify tolerance (which is my intention so as to get a minimalist appearance). However, after simplification, the borders of the regions no ...
- 2,112
3
votes
4
answers
3k
views
Simplify/generalize Polygons and keep topology of different layers PostGIS/QGIS
I have some polygons of a country, states, districts, communities and I want to simplify the geometry.
I already simplified the geometry of each layer but afterwards of course it doesnt fit with the ...
- 201
6
votes
1
answer
200
views
Finding Ring Smaller than a certain tolerance
In Simplifying a shapefile for world timezones
http://efele.net/maps/tz/world/
all generalize/simplify algorithms fail on 5 countries/states, shown in this shape file
http://enclick.com/...
- 223