All Questions
5 questions
6
votes
1
answer
3k
views
How to compare two sets of points in QGIS?
I have two point layers with XYZ data; one set are points measured in the field and the second set is a Lidar data set.
I want to check the accuracy of the Lidar in comparison to the measured data.
...
- 1,019
2
votes
0
answers
128
views
Single numbers for accuracy and resolution for vector and raster data?
This question is meant as a modelling question, not having to do with particular data formats. It was edited to better separate spatial accuracy and resolution (precision).
In order to make the ...
- 21
1
vote
1
answer
107
views
Data gets skewed when re-adding it into the table of contents
some of my data gets re-align every time i re-add it in within the QGIS Table of contents ( like a good 5-10 feet off). I have no idea what could be the cause, I may have the given layer in a ...
- 87
1
vote
1
answer
130
views
Unable to intersect a shapefile with a set of points
I have a set of 1000 urban points that I'm trying to intersect with a classification result to find the accuracy but I keep getting an error
"GEOS geoprocessing error: One or more input features have ...
- 11
0
votes
0
answers
360
views
OpenLayers vector accuracy in EPSG:3857 projection
I'm working on a web mapping solution that stores data in PostGIS with EPSG:4326 projection. Everything seems to be good until last week. My customer loaded two shapefiles that some parts are ...
- 161