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Paulo

@ecodiv@fosstodon.org
mastodon 4.6.6
  • Open on fosstodon.org

Lecturer and researcher with a passion for biodiversity, ecology, and spatial data analysis. Committed to open science and open-source solutions, especially in the geospatial realm, and an active contributor to GRASS. Lifelong learner, always eager to explore new ideas and broaden my horizons.

0 Followers
0 Following
15 Posts
Joined October 31, 2022
Website:
https://ecodiv.earth
Github:
https://GitHub.com/ecodiv
Gallery:
https://ecodiv.earth/gallery

Posts

Open post
ecodiv
Paulo @ecodiv@fosstodon.org · Mar 22, 2026
Paulo
@ecodiv@fosstodon.org

Lecturer and researcher with a passion for biodiversity, ecology, and spatial data analysis. Committed to open science and open-source solutions, especially in the geospatial realm, and an active contributor to GRASS. Lifelong learner, always eager to explore new ideas and broaden my horizons.

fosstodon.org

Just published a tutorial about using GRASS for a viewshed workflow that employs an observer-relevant surface to selectively represent obstructions that effectively block line of sight at pedestrian height. This derived layer is then used to perform a cumulative viewshed analysis. Check it out here: https://ecodiv.earth/post/intervisibility/ #grassgis #osgeo #ahn #viewshed @grassgis@fosstodon.org

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ecodiv
Paulo @ecodiv@fosstodon.org · Feb 19, 2026
Paulo
@ecodiv@fosstodon.org

Lecturer and researcher with a passion for biodiversity, ecology, and spatial data analysis. Committed to open science and open-source solutions, especially in the geospatial realm, and an active contributor to GRASS. Lifelong learner, always eager to explore new ideas and broaden my horizons.

fosstodon.org
Replying to @rduivenvoorde@fosstodon.org
@rduivenvoorde@fosstodon.org je zou verwachten dat dat standaard gebeurd bij opdrachten vanuit de overheid. Maar ik heb de indruk dat het in de praktijk er soms/vaak (?) bij inschiet. Ik zit niet zo in het wereldje, en kende die plugin ook niet. Mooi om dat meer onder de aandacht te brengen; "geen reden om data niet aan te leveren, het is immers makkelijk genoeg met de plugin"
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ecodiv
Paulo @ecodiv@fosstodon.org · Feb 18, 2026
Paulo
@ecodiv@fosstodon.org

Lecturer and researcher with a passion for biodiversity, ecology, and spatial data analysis. Committed to open science and open-source solutions, especially in the geospatial realm, and an active contributor to GRASS. Lifelong learner, always eager to explore new ideas and broaden my horizons.

fosstodon.org

Just posted a short how-to on turning Dutch NDFF biodiversity data 🌿📊 into species-richness heatmaps using QGIS and GDAL. Covers the basics: removing duplicates, filtering blurred records, dissolving per species, and rasterizing. Also a weighted variant for those who want to account for spatial precision.
The NDFF data has been freely accessible since 2025, so it is a good time to start playing with it 🗺️
👉 https://ecodiv.earth/post/NDFF_heatmaps/ #qgis #openSource #gdal

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Open post
ecodiv
Paulo @ecodiv@fosstodon.org · Jan 30, 2026
Paulo
@ecodiv@fosstodon.org

Lecturer and researcher with a passion for biodiversity, ecology, and spatial data analysis. Committed to open science and open-source solutions, especially in the geospatial realm, and an active contributor to GRASS. Lifelong learner, always eager to explore new ideas and broaden my horizons.

fosstodon.org

Just updated my 'Species Distribution Modeling in GRASS' reader 📘. Right in time for our upcoming module for my 'Earth, data-analysis and visualization students at #HASgreenacademy 😅

Mostly small changes about the organization of results. The least exciting part of modeling, but it can absolutely mess up your workflow if not done right. Hopefully this lands before students learn that the hard way. 🤔

https://ecodiv.earth/TutorialsNotes/sdmingrassgis/

#SDM #Teaching #ReproducibleScience #GIS #GRASSGIS #FOSS #osgeo

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Open post
ecodiv
Paulo @ecodiv@fosstodon.org · Jan 30, 2026
Paulo
@ecodiv@fosstodon.org

Lecturer and researcher with a passion for biodiversity, ecology, and spatial data analysis. Committed to open science and open-source solutions, especially in the geospatial realm, and an active contributor to GRASS. Lifelong learner, always eager to explore new ideas and broaden my horizons.

fosstodon.org
Replying to @underdarkGIS@fosstodon.org
@underdarkGIS @hansakwast Great!
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Open post
ecodiv
Paulo @ecodiv@fosstodon.org · Jan 17, 2026
Paulo
@ecodiv@fosstodon.org

Lecturer and researcher with a passion for biodiversity, ecology, and spatial data analysis. Committed to open science and open-source solutions, especially in the geospatial realm, and an active contributor to GRASS. Lifelong learner, always eager to explore new ideas and broaden my horizons.

fosstodon.org

I've created two new GRASS addons to facilitate the exchange of raster styles between QGIS and GRASS: r.colors.qml and `r.colors.toqml`.

🎨 r.colors.qml: Apply QGIS QML style files directly to your GRASS rasters.
🔄 r.colors.toqml: Export GRASS color tables and categories back to QML for use in QGIS.

Read the full post here! 👇
https://ecodiv.earth/post/use_qml_in_grass/

#gis #QGIS #grassgis #OpenSource #Cartography @grassgis@fosstodon.org

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ecodiv
Paulo @ecodiv@fosstodon.org · Jan 09, 2026
Paulo
@ecodiv@fosstodon.org

Lecturer and researcher with a passion for biodiversity, ecology, and spatial data analysis. Committed to open science and open-source solutions, especially in the geospatial realm, and an active contributor to GRASS. Lifelong learner, always eager to explore new ideas and broaden my horizons.

fosstodon.org
Replying to @markstos@urbanists.social
@markstos@urbanists.social If it is a vector map, all adjacent cells with the same value ( = same color) would be merged. But unless I understand you wrongly, is it not simpler to remove the boundaries of the cells (or give them the same color as the fill). For the eye, that would merge all polygons with the same color as well.
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Open post
ecodiv
Paulo @ecodiv@fosstodon.org · Jan 09, 2026
Paulo
@ecodiv@fosstodon.org

Lecturer and researcher with a passion for biodiversity, ecology, and spatial data analysis. Committed to open science and open-source solutions, especially in the geospatial realm, and an active contributor to GRASS. Lifelong learner, always eager to explore new ideas and broaden my horizons.

fosstodon.org
Replying to @markstos@urbanists.social
@markstos@urbanists.social In the screenshot I have merged the squares of a vector grid based on the value in the 'selected' column. I can now change the values in that column as a way of selecting different grid cells, and the renderer will recalculate the merged geometries on the fly, and update the map immediately without changing the data itself.
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Open post
ecodiv
Paulo @ecodiv@fosstodon.org · Jan 09, 2026
Paulo
@ecodiv@fosstodon.org

Lecturer and researcher with a passion for biodiversity, ecology, and spatial data analysis. Committed to open science and open-source solutions, especially in the geospatial realm, and an active contributor to GRASS. Lifelong learner, always eager to explore new ideas and broaden my horizons.

fosstodon.org

Just “discovered” the Merged Features renderer. What a neat, handy feature! Kudos to whoever came up with that one.

And yes, it’s been around for quite a while already, since around 2021, I believe 😊.

It is just that there is so much to discover in QGIS. But hey, as long as you find it when you actually need it. 🙂

#qgis #osgeo #openSource #gis #cartography

https://docs.qgis.org/3.40/en/docs/user_manual/working_with_vector/vector_properties.html#merged-features-renderer

fosstodon.org

Fosstodon

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Open post
ecodiv
Paulo @ecodiv@fosstodon.org · Jan 03, 2026
Paulo
@ecodiv@fosstodon.org

Lecturer and researcher with a passion for biodiversity, ecology, and spatial data analysis. Committed to open science and open-source solutions, especially in the geospatial realm, and an active contributor to GRASS. Lifelong learner, always eager to explore new ideas and broaden my horizons.

fosstodon.org

Winter visitor at the door...

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Open post
ecodiv
Paulo @ecodiv@fosstodon.org · Dec 31, 2025
Paulo
@ecodiv@fosstodon.org

Lecturer and researcher with a passion for biodiversity, ecology, and spatial data analysis. Committed to open science and open-source solutions, especially in the geospatial realm, and an active contributor to GRASS. Lifelong learner, always eager to explore new ideas and broaden my horizons.

fosstodon.org

I would like to wish you all the best for 2026. Let's focus on the positive, as hard as that sometimes may seem, and work together towards some more happiness!

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Open post
ecodiv
Paulo @ecodiv@fosstodon.org · Jul 12, 2025
Paulo
@ecodiv@fosstodon.org

Lecturer and researcher with a passion for biodiversity, ecology, and spatial data analysis. Committed to open science and open-source solutions, especially in the geospatial realm, and an active contributor to GRASS. Lifelong learner, always eager to explore new ideas and broaden my horizons.

fosstodon.org

It was great to connect with the open source geo community at the [FOSS4G.NL 2025](https://foss4g.nl/). The event highlighted innovative open-source projects and collaborations.

I presented on [GRASS](https://grass.osgeo.org/) in education and research, outlining its current state and sharing examples of how I use it in my classes and research at the HAS green academy. [View slides](https://ecodiv.earth/share/foss4gnl2025/#/title-slide)

#FOSS4GNL #Geo #OpenSource @grassgis@fosstodon.org @osgeonl@fosstodon.org #HASgreenacademy

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Open post
ecodiv
Paulo @ecodiv@fosstodon.org · May 25, 2025
Paulo
@ecodiv@fosstodon.org

Lecturer and researcher with a passion for biodiversity, ecology, and spatial data analysis. Committed to open science and open-source solutions, especially in the geospatial realm, and an active contributor to GRASS. Lifelong learner, always eager to explore new ideas and broaden my horizons.

fosstodon.org
Replying to @underdarkGIS@fosstodon.org
@underdarkGIS @timlinux @mbernasocchi great read, thanks! It made me realize how long I’ve been using QGIS, and how incredibly far it has come since those early days."
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Open post
ecodiv
Paulo @ecodiv@fosstodon.org · Jan 09, 2025
Paulo
@ecodiv@fosstodon.org

Lecturer and researcher with a passion for biodiversity, ecology, and spatial data analysis. Committed to open science and open-source solutions, especially in the geospatial realm, and an active contributor to GRASS. Lifelong learner, always eager to explore new ideas and broaden my horizons.

fosstodon.org

One of those little things I have missed in #LibreOffice Impress... Not anymore, the Notes pane is there! 🥳

fosstodon.org

Fosstodon

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Open post
ecodiv
Paulo @ecodiv@fosstodon.org · Oct 14, 2024
Paulo
@ecodiv@fosstodon.org

Lecturer and researcher with a passion for biodiversity, ecology, and spatial data analysis. Committed to open science and open-source solutions, especially in the geospatial realm, and an active contributor to GRASS. Lifelong learner, always eager to explore new ideas and broaden my horizons.

fosstodon.org
Replying to @mszll@datasci.social
@mszll @martinfleis @underdarkGIS I have been wondering the same. The terms very often seem to be used interchangeably. This old blog post provides some thoughts on the subject: http://basudebbhatta.blogspot.com/2010/02/spatial-and-geospatial.html?m=1 And a similar question was asked on researchgate: https://www.researchgate.net/post/Is_there_any_difference_between_Spatial_Analysis_and_Geospatial_Analysis
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