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Florian Neukirchen

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Tag: QGIS

NetCDF in QGIS: use expression to set time range of bands

In QGIS, a NetCDF file is opened as a raster with one band per timestamp. Unfortunately, the time is not set in the Temporal Settings, but it is shown in the name of the band and can be converted with an expression

Posted on 6. November 2024

Data Clock in QGIS and Plotly

Visualization of seasonal or cyclic time series data as a circular, polar heatmap

Posted on 4. October 2024

Changing fonts in a QGIS map within seconds

With the QGIS plugin Adjust Style it is easy to replace a font family anywhere in a map

Posted on 18. September 202418. September 2024

QGIS raster layer to NumPy array and back

RasterWizard: get the data of a QGIS raster layer as a NumPy array, and the processing result back into QGIS as a new raster layer

Posted on 12. September 202412. September 2024

QGIS: No Data in raster layers

In QGIS, filters normally ignore No Data cells automatically. However, this is not always easy, especially if a filter examines neighboring cells and these contain No Data. What happens depends on the implementation, but is problematic in both cases. In raster layers, “No Data” is coded with a specific number, e.g. -9999. If, for example, … Continue reading “QGIS: No Data in raster layers”

Posted on 19. May 2024

QGIS plugin Scipy Filters

New QGIS plugin for raster layers with convolution, morphological filters, principal component analysis, statistics, etc.

Posted on 19. May 2024

How to use PostGIS in a docker container

PostGIS is the spatial extension for the PostgreSQL database. You can use the database not only to store and query your geometries and attributes, but you can also perform typical GIS tasks directly in the database. It needs some effort to get it up and running for the first time, but then it will speed … Continue reading “How to use PostGIS in a docker container”

Posted on 29. October 202317. September 2024

Plugin for quick changes to the symbology of your QGIS map

Adjust the style of your QGIS map with a few clicks instead of altering every single symbol for many categories or a number of label rules.

Posted on 15. May 20236. June 2023

My Books

Formation of Mountains
Florian Neukirchen
The Formation of Mountains
Release: autumn 2022
Die Welt der Rohstoffe
Florian Neukirchen
Gunnar Ries

The World of Mineral Deposits
A Beginner’s Guide to Economic Geology
All books by Florian Neukirchen

Recent Posts

  • NetCDF in QGIS: use expression to set time range of bands
  • Data Clock in QGIS and Plotly
  • Changing fonts in a QGIS map within seconds
  • PostGIS with Docker Compose
  • Plotly Sunburst: Set the color of the central category

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