Local coordinates (Cartography 🗺️)

Local coordinates are the ones used in a local coordinate system or a local coordinate space. Simple examples: Houses. In order to work in a house construction, the measurements are referred to a control arbitrary point that will allow to check it: stick/sticks on the ground, steel bar, nails... Addresses. Using house numbers to lo...

https://en.wikipedia.org/wiki/Local_coordinates

#LocalCoordinates #Geometry #Cartography #ComputerGraphics #CoordinateSystems

One year after the release of the renewed and updated https://spatialreference.org/ , it is now the first in Google when you search "epsg list" (at least in my incognito mode). 🎉

Now also with the "Explorer" functionality to make things even easier.

PS: SpatialReference is maintained by the PROJ team

#gis #gischat #coordinatesystems

Talk "Introduction to Vertical Coordinate Systems" from #foss4ge2024 in Tartu

https://www.youtube.com/watch?v=tELPb9G64zU

The slides in PDF are available in the description of the video and in my web page.
#FOSS4GE #FOSS4G #GIS #coordinatesystems

Talk "WGS 84: I don't know, I don't care" from #foss4ge2024 in Tartu.
https://www.youtube.com/watch?v=M2ck3cAGvhg

The slides in PDF are available in the description of the video and in my web page.
#FOSS4GE #FOSS4G #GIS #coordinatesystems

Tomorrow I am travelling to Crete to attend the #ESWC2024. Sunday, during the #GeoLD workshop, I will be presenting the #GloSIS web ontology. Also in the #GeoLD I am co-authoring a position paper making the case for a #SemanticWeb standard for #CoordinateSystems.

https://i3mainz.github.io/GeoLD2024/

#LinkedData #SoilData #GeoData #CRS #GeoSPARQL

Since I use Coordinate Reference Systems on a daily basis I have to search them for different reasons (usually because a customer is using the wrong one). I decided to develop a webpage to search them quickly, and get useful information. A few months later we moved it into the PROJ.org domain.
You have it at https://crs-explorer.proj.org/
Now there is not a single day I do not use it. It was worth it the investment.

#GIS #FOSS4G #coordinatesystems #proj

Dive into the world of #maps and data on #GISDay2023, with
@unigis_salzburg! 🌍✨

💡 Join us for an insightful talk on "#Projections and #CoordinateSystems in #GIS".

💻 November 15th, 4-4:30pm CET, online

🔗Expand your knowledge with #UNIGIS and register now: https://attendee.gotowebinar.com/register/2686645001996127321?source=mastodon

#Geoinformatics #GIS #geoinformatik #MasterofScience #fernstudium #distancelearning