Questions tagged [point]
A geometric element defined by a pair of x,y coordinates.
2,486 questions
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Find intersection points of lines in the same shapefile where no vertices exists in QGIS
I've a very large linear shapefile wich represents pipes.
I need to determine the position of every intersection between lines in this shape, only where no vertices already exists (I think with 0,-1 ...
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Interpolation of breadcrumb track of points in QGIS
I have a CSV that contains point data recorded by a GPS as it moved around. The device has recorded a point at a variable intervals (according to changes of direction, speed etc) and each point has a ...
- 519
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Unable to zoom to certain point features in QGIS
I am unable to zoom to certain point features in the geodatabase. When the layer is stored in EPSG 4326 (WGS84), I can zoom to the features without any issues. However, after converting the layer to ...
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Filtering and deleting some duplicated points in QGIS
I'm using QGIS 3.40.12 on Windows and working in civil engineering and currently manipulating different classes of points (streetlights, sewage covers...). Each type of point has a different value in ...
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Power diagram (Laguerre Voronoi) in QGIS
I have a dataset of 50k trees. Each tree is represented by its position (latitude and longitude) and the diameter of its crown. Several crowns are superposed in some parts with other trees. I'm trying ...
- 21
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Efficiently visualizing multi-GB point datasets (tens of millions of points) [closed]
I have a point dataset larger than 3 GB (tens of millions of points).
I’ve tried:
QGIS (lags / freezes due to memory constraints)
kepler.gl (https://kepler.gl) — fails to load at this scale
I’ve ...
- 39
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Estimating point values in ArcGIS Pro using another point layer
I have a geographic point layer with field values that are independent of slope (all green points below), and I need to estimate those field values for a second point layer (all red points below).
So ...
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Is there a QGIS plugin that creates evenly spaced points within a polygon layer?
I’m looking for a way to automate a task in QGIS.
Given a polygon layer, I need to generate a specified number of points inside it, with a fixed spacing (e.g., points every 2 meters). Doing this ...
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Using ArcPy UpdateCursor to remove Z geometry
I am trying to remove my Z values from a points layer, and the Z Val field has already been field calc'd to 0, but when I select a point the z geometry is still populated with an integer > 0. I ...
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Finding the nearest line from point and writing the line’s end-vertex names into the point’s attributes in QGIS Field Calculator [closed]
I’m working in QGIS with three layers:
lines (LINESTRING)
test (POINT) — contains the point test1
vertices (POINT) — stores the line vertices, each with a name/ID field
For each point in test (e.g., ...
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Orientation of rectangular symbol on point layer, following line from another layer in QGIS
I have a rectangular custom shape on a point layer. I want this shape to rotate automatically to the orientation of the line of another layer it is intersecting with. The long sides of the rectangle ...
- 155
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Upgraded QGIS, need point tool to behave like previous one
I recently upgraded QGIS from 3.08 to 3.40. Im doing a job that requires me to use the point edit tool to move the vertexes of polygons from a layer to points from another, thats like half of my ...
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Points of shp-layer not visible when added to QGIS Project [closed]
I've got a .dbf, a .shp and a shx. file of a point layer. The Points are set in the ETRS89/utm32 coordinate system. I've added the layer as shp layer in a project with the coordinate system WGS84 ...
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QGIS crashes while reading point geometry from Oracle
I would like to read point geometry stored in an Oracle database as a point with a rotation value.
I create a table and add a point like this:
CREATE TABLE points_with_rotation (
id integer,
...
- 398
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Drawing nearest line between two points of different layers and following existing line feature in QGIS
In QGIS I am currently very confused about drawing nearest line between two points of different layers while following existing line layer, for example following streets.
I wanted to match around 1000-...
