Questions tagged [vertices]
Also known as a "nodes", the points specifically used to describe a polygon or polyline in a "vector" or "linestring" representation.
321
questions
-4
votes
0
answers
24
views
Get a list of the points of a QgsPolygon, using Qgis PyApi [closed]
I need to isolate the points of:
<QgsPolygon: Polygon ((-56320.23199007755465573 -166518.30815678663202561, -56565.95430758487782441 -166969.12154244974954054, -56042.58511950822139625 -166945....
0
votes
1
answer
74
views
Removing end vertices of a line vector in QGIS
I have a line layer in QGIS that I have digitized on the basis of a PNG file. This layer includes main lines and many secondary lines. I would like to remove these secondary lines automatically and ...
- 85
0
votes
0
answers
80
views
How do I stop vertex jumping when editing line features in QGIS with shapefiles?
I've been using QGIS 3.34 (previously 3.28) for editing shapefiles containing line features. However, I've encountered a persistent issue: occasionally, while editing a feature, a vertex from a ...
2
votes
0
answers
36
views
Generating cumulative M-values in QGIS
I have a linear dataset in QGIS each vertex in each line has an X, Y and Z values. I want them to have M values. There is a set M value tool but it only seems to set a single value to each vertex i.e. ...
- 21
0
votes
0
answers
25
views
Get vertex of SDE.ST_GEOMETRY polygon using SQL
Oracle 18c 10.7.1 EGDB:
I want to write a SQL query that has rows with the XY coordinates of each vertex of an SDE.ST_GEOMETRY polygon feature class.
I can do it for a line FC using a cross join, a ...
- 1,172
0
votes
1
answer
28
views
Real Time Area calculation while drawing polygon in ArcMap
How can I visualise real-time area while drawing a polygon in ArcMap 10.8?
I mean, when we draw a polygon in Google Earth Pro, it shows real-time area with each drawing vertex.
1
vote
0
answers
63
views
Removing the split between merged polygon in QGIS
I merged two polygons within one shapefile and then aligned all the vertices so that they were adjacent, but how do I remove the former edges that bisect the polygon so that the geometry is continuous?...
- 341
7
votes
2
answers
187
views
QGIS functions: aggregate and array_foreach not working for vertices
I have two layers as the whole project in EPSG:4326:
polygon layer of countries
linestring layer of routes
I want to concatenate the country names (those are stored in "name" attribute) ...
- 71
2
votes
1
answer
97
views
Get the outline of badly optimized polygons (too many vertices?)
I'm trying to get the area of some flooding data. Overall, the dataset is huge and hardly to handle in QGIS. The dataset comes in several shapefiles ranging from 60 Mb to 4 Gb and include several ...
- 21
2
votes
1
answer
122
views
Exploding lines with PyQGIS [closed]
Are there ways to realize exploding lines through PyQGIS?
I have layer with very complicated line and exploding lines is so slow, it doesn't end even after an hour. I've created spatial index and run ...
- 347
2
votes
3
answers
158
views
Creating polygon from vertices with QGIS Geometry Generator
I have a point shape with the following structure:
What I want is to know if I can draw the polygons through the QGIS geometry generator. The separator of the polygons of another is in the "NO&...
- 21
0
votes
0
answers
18
views
Access control point vertices using SQL
ArcGIS Pro 3.2.1; Oracle 18c 10.7.1 EGDB; SDE.ST_GEOMETRY
Regarding control points:
Video: Suppress symbol effect in ArcGIS Pro
Introduction to control points
CIMGeometricEffectAddControlPoints Class
...
- 1,172
0
votes
0
answers
26
views
How to merge three lines with correct start vertex
I have a feature class with three lines intersected at one point. I'm trying to create equally spaced points along lines. I used "the Generate Points Along Lines " Tool which points will be ...
- 1
1
vote
0
answers
33
views
How do I make all polygon vertices show up even when vertex editor is turned off in QGIS? [duplicate]
As I am digitizing a georeferenced map I'd like to always see all vertices rather than only when I hover my cursor over individual ones with snapping options turned on. I am making a lot of vertices ...
- 341
0
votes
1
answer
159
views
Simplify multipolygon in Google Earth Engine
I am working on Google Earth Engine and trying to simplify a multipolygon by first reducing its vertices and then removing unnecessary polygons that have fewer than 5 vertices.
var gaul = ee....
- 3