Questions tagged [position]
The latitude, longitude, and altitude (x,y,z coordinates) of a point, often accompanied by an estimate of error.
69 questions
0 votes
1 answer
30 views
Remove some observations from a RINEX file then solve the position
I need to test the accuracy of a receiver without carrier phase observables. Is there a tool to remove the carrier phase from a RINEX 2.11 or 3 file? So that I can then use RTKLIB to solve the ...
- 63
0 votes
0 answers
55 views
How to add a point at current GNSS position using QField
How can I add a point at my current GNSS position and NOT at the position of the cross at the center of the screen? I would like to create points for a survey at my exact positions.
- 1
0 votes
0 answers
76 views
Basemap and shapefile with the same EPSG are projected in different positions
I have a question regarding projections on a QGIS project. When I use Carto Light basemap from the HCMGIS plugin (projected in EPSG:3857), Greece is projected in the same position as a shapefile ...
- 1
0 votes
1 answer
111 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 ...
- 113
1 vote
1 answer
63 views
Delete duplicate features by value and relative position in QGIS
I have a point layer with features of which some share the same date (fieldname: 'Datum' with format: "dd.MM.yyyy"). The date that is shared by some features is not a single specific one but ...
- 113
0 votes
0 answers
26 views
Positioning by length of line-element section using QGIS
To indicate a position along a line-element (like a road, or in my case a river) I want to use the chainage of the river (in German: Kilometrierung) rather than regular coordinates. The chainage of a ...
- 41
0 votes
0 answers
1k views
Calculating position of target of drone
We have an dji matricies 300 rtk video. I would like to detect position of something. Here an example photo what I would like to detect. Green rectangle is my target.Black rectangle is mid point of ...
- 53
1 vote
1 answer
2k views
Leaflet - Update position of different markers on drag
I created several markers from data saved in an array. Now, I want to make draggable these markers and get the new positions of them in some inputs. Unfortunately I don't understand how to update ...
- 111
1 vote
1 answer
209 views
QGIS Find position for point objects on a line object and add this length attribute to any point object
My QGIS (3.22. Biatowieza) question is the following: I have a line layer with objects that have a length in metres. And there is a separate point layer with point objects that are located besides of ...
0 votes
1 answer
184 views
Add another set of coordinate values in the same point entity in QField (line start and end)
In an attemp to add another set of x,y coordinate to QField (mark the start and the end of a line feature with points) I have created another set of "lat" "long" fields linked to a ...
- 67
5 votes
1 answer
962 views
Qfield project shows wrong GPS position [closed]
I created a project in QGIS with project CRS in EPSG:3857, packed it for Qfield with Qfield Sync plugin and saved it to my Android device. When I open the project there with Qfield and activate GPS, ...
- 80.4k
2 votes
1 answer
2k views
QGIS georeferencing leads to wrong position
I'm trying to georeference a TIFF file in QGIS (version 3.20.0-Odense) based on a WMS layer (EPSG:4326). The project is in EPSG: 25832 and I used the same as output for the georeferencing (4 points, ...
- 61
1 vote
0 answers
551 views
Pop-Up position compared to the marker clicked in OpenLayers
I would like to center a pop-up on the marker where I click now it is moved to the right and above the marker. I tried two methods: Method 1: var f = map.forEachFeatureAtPixel( event.pixel, ...
- 659
0 votes
1 answer
88 views
sunAngle() calculation in R giving wrong results
I need to find the hourly sun angle (angle at which the sun strikes the Earth) for a particular position (latitude, longitude) for a given day in Belgium. I used sunAngle() from "oce" ...
- 21
8 votes
1 answer
539 views
QGIS Making population pyramids as diagrams
I'm trying to make age-gender pyramids as diagrams placed over centroids of map shapes. Using horizontal histograms I can create the right hand side: And by switching the direction of the bars (from ...
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