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Questions tagged [point]

A geometric element defined by a pair of x,y coordinates.

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Point layer labelling problems [closed]

I am trying to create a map of the US with many point locations (20-50+) that require the name of each point to be labelled. Whenever I need to move a label name (due to obstructions or many points in ...
Keith G's user avatar
2 votes
1 answer
84 views

Creating tangential lines at points along shoreline in QGIS

I want to create tangential lines for each point along a shoreline in QGIS, such as the dashed line I've hand-drawn. These points are not randomly spaced, they each represent the angle at which each ...
Aubree's user avatar
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Clip NetCDF data by point shapefile in Python

I have .nc files containing global chl-a data. I want to clip these files using a point shapefile and get the chl-a values specifically for those points. However, every similar code that I have come ...
saba moshtaghi's user avatar
0 votes
1 answer
26 views

Display point labels alternatively to left and right

I am working in QGIS and I have a point layer whose labels are to be displayed left or right of the point. The formula I tried to make it work is, in label placement, selected Offset from Point mode, ...
Trikelians's user avatar
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0 answers
18 views

How to fix LiDAR/Point cloud data with incorrect elevation that appears below the basemap?

I was supplied a series of .las files containing point cloud data taken of road features from a consultant. However, the elevation of these files appears very far below our basemap! It would seem that,...
pcpalmer's user avatar
1 vote
0 answers
20 views

Control feature order or z-index for WebGL layer icons? (OpenLayers)

I want to control the order icons appear on a WebGL layer so icons in the north appear in the back and overlap to the front as they appear southwards. Since the WebGL layer does not have a renderOrder ...
Sidders's user avatar
  • 103
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1 answer
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self.canvas.setMapTool in QGIS Plugin

The purpose of part of the QGIS plugin I'm creating is that when I press a button, the window closes and I can tap on the map and save the coordinates of that point to reuse later. I feel like my code ...
plugin_qgis's user avatar
1 vote
1 answer
40 views

How to apply style array to WebGL points layer (OpenLayers)

How can I apply an array of styles to a WebGL Points layer in OpenLayers? For example, if I use the following code to apply a circle and an icon, only the icon is visible - so is what I want to do ...
Sidders's user avatar
  • 103
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1 answer
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QGIS - plot points based on user defined origin

I've been given a CSV containing X and Y points (as seen below). However, these are in metres from the origin in which the person has self-specified. For example, in EPSG:4326 I may want to specify ...
guest_231213's user avatar
1 vote
0 answers
44 views

Synchronizing point layer with external table in QGIS

In QGIS I have an external table imported from MySQL where several users insert data through a website. This table is imported into QGIS and I have a join with a geopack that contains the x and ...
Kestrelol's user avatar
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How to draw KML LineString with icons at each point

I'm trying to figure out how to draw a line in KML with some sort of indicators at each point in the line. For an overly simplified example, say someone is hiking and they periodically record their ...
KBRSean's user avatar
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12 views

A function to change a GPS' exported code into viable lines / polygons

One of my older GPS systems records and exports the point type that it measures though a code. For instance: 1111 means it's a line that's part of a polygon belonging to a floor. -1111 would be the ...
Raf's user avatar
  • 1
0 votes
1 answer
23 views

Calculate distances between all point features in one layer and all point features in another layer (NOT only nearest)

I would like to calculate distances between all point features in one layer and all point features in another layer using ArcGIS Pro 3.1.2 tools or ModelBuilder. I'm not looking for distance to the ...
Sn0W's user avatar
  • 155
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0 answers
26 views

QGIS creating 4 offset points from a set of points

I work with a lot of projects where I have point shapefiles where the points are in a line that is not always straight. I have been wanting to find a way for a while now to create offsets from these ...
Jar Shaw's user avatar
4 votes
2 answers
299 views

Calculating azimuth between two points using their projected coordinates with Python

First of all, the goal is to create small lines from points at each end of a LineString. However, for it a step is to calculate the azimuth for the first and second, and second last and last vertex. ...
i.i.k.'s user avatar
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Imported points not aligned with Google roads and KML Shapefile

I imported points to Qgis they are appear behind the alignment and system used EPSG 21036 and points system used was also arc1960.
Collins Murashani's user avatar
0 votes
1 answer
82 views

CSV with Coordinates in QGIS [closed]

I want to upload a CSV in QGIS (add layer "Data source manager", "delimiter text"). Every time when I'm uploading the file it won't show me as a point layer. What am I doing wrong?
Vivien Müller's user avatar
0 votes
1 answer
19 views

ArcGIS "Buffered"/Blurry Point Symbol

I have a point layer with oscillating confidence in their correct location (1-5) and want to style them representing this fuzziness. In a storymap, I found a symbology with radially increasing ...
Wernazuma's user avatar
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0 answers
26 views

How do I create a raster from points of soil samples in QGIS?

I have collected samples of soils from fields and have a GPS coordinates and soil test for element K, P and Mg for each of them. Now I would like to create a raster for each field based on the vector ...
David Nadrchal's user avatar
0 votes
1 answer
19 views

Error message when trying to export linked objects from a WFS pointlayer

I am new to QGIS and therefore not that experienced with GIS programs. Currently, I am trying to export a few objects from a big WFS pointlayer to multiple smaller layers. Some of these objects are &...
Student M's user avatar
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0 answers
22 views

Creating line that connects points from feature class to single point in another feature class using ArcGIS Pro

I wanted to connect origin and destination points using a line. The data are contained in an Excel spreadsheet which consists of two XY data (Origin & Destination). Here's a screenshot of an ...
mfirdaus_96's user avatar
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0 answers
34 views

Normalize county coverage data by population

I have point data where the result is either in coverage or out of coverage. I know that we receive far more in coverage results in high population areas, so I want to normalize the data by population....
ANW225's user avatar
  • 1
3 votes
0 answers
94 views

Effective points clustering using PostGIS

I want to implement clustering points like here in the last example(with big and small points): https://www.crunchydata.com/blog/postgis-clustering-with-dbscan I have a table in PostgreSQL with ...
hifichevymane's user avatar
0 votes
1 answer
59 views

Select point features within same polygon AND with same field value QGIS

The situation I have a point layer ("Beobachtungen") and a single part polygon layer ("Single parts"). For both layers, every feature has a unique id. As shown in the image, some ...
Hannes's user avatar
  • 129
3 votes
1 answer
112 views

Making trivial GeoJSON file with Feature collection of points

I'm trying to generate a GeoJSON file with a feature collection of points to render in QGIS, however, when I load my .geojson file I don't see anything. To figure out what's going on, I've tried to ...
quant's user avatar
  • 143
1 vote
1 answer
49 views

Generate points along geometry and avoid polylines

I am trying to generate preliminary sign poles location with the QGIS function points along geometry. I was able to generate points in respect of distance requirements. I would like to know if there ...
sdl24's user avatar
  • 11
0 votes
0 answers
28 views

Finding closest feature of polyline layer to point layer using ArcPy with ArcGIS Pro

In ArcGIS Pro, I have 2 layers. One layer called X has data points which contains data for count points in a certain point of a road. This layer has an attribute (column) called Direction. This is ...
Barsino Larushku's user avatar
0 votes
1 answer
30 views

Separation angle from single point feature

I have a point feauture (radar). From this radar, I need to draw straight lines with a separation angle of 0.3° (full circle). At best, I want to draw the first line by myself with all following lines ...
Kevin_S2021's user avatar
1 vote
1 answer
44 views

How do I insert labels or annotate the points in a plot with multiple things?

I'm trying to make a simple study area map which consists of basin boundary shapefile, sampling points and river shapefile. Here's the dataframe of the sampling points: And here's the code to plot ...
mfirdaus_96's user avatar
0 votes
1 answer
22 views

Delimited text layer ACLED data base: I can't see all the points

I downloaded a CSV file from the ACLED database but I am struggling to see all the points on my map. I have over 2000 rows, so I should have 2000 points or so to showcase on my map when the longitude ...
LTNNOOR26's user avatar
0 votes
0 answers
52 views

Removing isolated point "hotspots" from big point sample

I have about 60000 points (lat, lng) that I want to layer on a world map as a heat map. The problem is that there are some isolated point hotspots. Isolated here meaning they have only a few points ...
jonasmylesx's user avatar
2 votes
2 answers
101 views

Selecting points which are not in polygons using GeoPandas

I have got two geodataframes: df1 which has got points as geometry type and has around 2.5 million rows, df2 has got polygons/multipolgyons as geometry type and has over 2.6 million rows. I want to ...
user2293224's user avatar
3 votes
1 answer
64 views

Add attribute to a point it shares line segment with in QGIS

I have two point layers, say Point layer A and Point Layer B. I also have a line layer. I want to transfer the attributes of the point layer A to Point Layer B, only if it shares the line segment. I ...
Akshara's user avatar
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0 answers
18 views

Simple label display for Z in XYZ is not showing up

I have a DEM that I converted to XYZ point features. I am trying to label each point using its Z attribute. I had something similar work fine a few months ago, but now I am unable to display the Zs. ...
Steve Miller's user avatar
0 votes
1 answer
34 views

Set random points within a given distance of a known street network [closed]

I have a street network with a known ditance of 39735 km. Now my goal is to set a point every 200 km on this street network, so that there will be exactly 198 points generated. The distance of 200 km ...
Sebastian's user avatar
1 vote
1 answer
74 views

Finding shortest distance from one point to each polygon and the distance from that point of the polygon to any of the points in the polygon in QGIS

I'm trying to find the shortest distance from a point (point A uploaded as a CSV) to a polygon uploaded as a shapefile (polygon 1) and then the distance from that point of the polygon to any of the ...
QHNL's user avatar
  • 21
4 votes
4 answers
185 views

Dropping nearly-identical point locations with GeoPandas

I have a GeoDataFrame (gdf) of several thousand point locations. I want to drop duplicate records from the gdf - that is, records with the same attribute information and the same location. However, ...
neirbom9's user avatar
  • 167
0 votes
0 answers
33 views

Defining outbound and return directions of GPS points in QGIS

In QGIS, I have a layer of points corresponding to the positions of my vehicles every 2 seconds. So, my layer contains the following information: XY coordinates Vehicle number GPS heading Timestamp ...
Youssra El Moussaoui's user avatar
0 votes
0 answers
25 views

Get rid of points that are over 500m from previous time point

I have gps data from animals over time. The collars recorded the location of the animal every 15 minutes, but there are some funky points that are obviously an error as the animal could not have moved ...
Alex 's user avatar
  • 41
-1 votes
1 answer
50 views

Shoot a point from another point

How do I shoot a point directly north 3,000 feet from the corner of a polygon in ArcGIS Pro in WGS 1984 Web Mercator (auxiliary sphere)? I start by going to Edit --> Create and choose Point at End ...
TheOmoSlide's user avatar
0 votes
0 answers
20 views

Point-sampling outside of vector polygons

I am using QGIS 3.30.0 to try to sample a defined number of points that are located outside of vector polygons. The overall goal is to have an even number of points within the polygons (positive ...
Carter Dills's user avatar
1 vote
1 answer
61 views

Why is the extent of a "point" grid different from a "polygon (rectangle)" grid in QGIS?

I cannot find an answer to this question, not even in the official QGIS documentation. Here is the problem: First, I delineate a survey area layer (geometry type is polygon): When I create a grid (...
Chavdar Kirilov's user avatar
0 votes
1 answer
65 views

Selecting roads covered by point features QGIS

I have a layer consisting of roads and another layer of point features (traffic signs). Is there a way in QGIS to choose the area that the traffic signs cover? By this I mean the area within multiple ...
pe5's user avatar
  • 1
0 votes
0 answers
61 views

Combining data using QGIS

I have a background in GIS but haven't worked with it in years, and QGIS isn't my strong suit. I have two shapefile layers: Layer 1 is polygon, for provincial basemap. I also joined a lot of other ...
BeaverFever's user avatar
1 vote
0 answers
20 views

Extract Multi Values to Points for two time-enabled layers using ArcGIS Pro

I have a time-enabled point layer (5-minute resolution) and time-enabled raster layer (hourly resolution). I'm trying to create a new field in the point layer by extracting values, but it's doing so ...
RML's user avatar
  • 11
3 votes
1 answer
123 views

Labeling with comma as in QGIS Attributes table

In QGIS 3.22 I would like to label an area with decimal values. In the attribute table, the values are displayed separated by commas, but the areas are labelled separated by periods. Please help! ...
stefan's user avatar
  • 97
0 votes
0 answers
33 views

How to show point data as a colored map?

Im doing one, I would say, simple analysis, but Im rookie when it comes to GIS, so I need help. So, I have data of CPT (cone penetration test) which our firm conducted over the years and within that ...
Marko Boričević's user avatar
1 vote
1 answer
97 views

QGIS - Find point position on line (lengthwise)

I have a line layer with some lines, and a point layer whose points are located on those lines. Now I need to get the position "along" the line where each point is (as in distance from start ...
Daniel Möller's user avatar
0 votes
1 answer
52 views

Locating points along line using distance table in QGIS

I have a table of observations along a line (Road), with a distance of each observation point from start or from the last observation. I am looking for a method to locate the points from the table ...
Amit Epstein's user avatar
0 votes
0 answers
34 views

Google Earth Engine MultiPoint Object Export

I am using GEE and I have a multipoint object that is all my different sites. I want to be able to export this so I can easily add these points into other scripts and pull up all my sites. I created ...
Macall Hock's user avatar

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