#raster — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #raster, aggregated by home.social.
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Aunque no estoy acostumbrado por quererlo tener siempre todo perfecto (y que nunca llega a estarlo), os comparto unos scripts que estoy creando. Esta vez lo estoy haciendo en abierto, porque tampoco está relacionado directamente con lo que estoy investigando. Es algo que necesita hacerse.
El problema es que tengo que procesar archivos ráster muy (pero que muy) grandes. La idea es realizar la media de todos ellos para tener una concordancia entre los modelos que representan. Para este fin todas las librerías que he buscado (Python y R) se quedan cortas. Así que me ha tocado desempolbar el C++, el cual solo he aprendido a partir de solventar sus errores (así que ni idea de si es "seguro").
Por si queréis echarle un vistazo, aunque ahora mismo solo estoy haciendo prueba:
https://codeberg.org/jcintasr/bildo_cppLa idea es llamar a la librería que creado (resumiendo tooodo lo que tengo en las diferentes main[N].cpp) se pueda llamar desde python.
Cualquier crítica o sugerencia será bienvenida (aunque su implementación puede que tarde debido a que no tengo tiempo).
#codeberg #python #cpp #ciencia #investigar #programación #raster
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The Growing Threat of Flooding on Transportation Infrastructure Across Texas Through 2100
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https://doi.org/10.1029/2026EF008207 <--shared paper
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H/T @Rakibul Ahasan
“[The researchers] modeled flood susceptibility across Texas at 30 m resolution and projected how it shifts through 2100. The headline is not just that flood risk grows, but that it moves, into places current planning and regulatory maps are not watching. The July 2025 Kerrville flooding sat squarely inside the kind of inland hazard expansion this model projects.
KEY TAKEAWAYS:
● 95% of new flood exposure by 2100 is inland, away from the coast, shifting the resilience problem into interior river basins that planning has historically deprioritized.
● Where [they] benchmarked against FEMA's National Flood Hazard Layer, the model flags substantial hidden risk in rapidly urbanizing peri-urban areas, most notably in Greater Houston.
● Climate change alone expands the flood-susceptible footprint by 10–12% by 2100, before any new road or land-use development, so this is a conservative floor, not a ceiling.
● Half the state's roads and rail and 80% of its bridges already sit in flood-susceptible zones today.
● [They] accounted for both factor-importance and spatial-scale uncertainty, using a Monte Carlo weight-perturbation ensemble and multiscale analysis across nested neighborhoods.
The practical takeaway: this is a statewide screening layer, not a replacement for site-level hydraulic studies. It shows planners and policymakers where the gap between today's protection and tomorrow's risk is widest, and where unmapped peri-urban growth is walking into exposure that regulatory maps still call safe…”
#water #hydrology #hydrography #extremeweather #flood #flooding #Texas #TX #USA #transportation #infrastructure #humanimpacts #risk #hazard #cost #economics #floodsusceptibility #GIS #spatial #mapping #raster #elevation #modeling #model #spatialanalysis #planning #regulation #warning #Kerrville #hazardmapping #floodexposure #inland #coast #urban #urbanisation #development #growth #Houston #lowlying #climatechange #landuse #development #geostatstics #MonteCarlo #regionalscreening #naturalhazard #infrastructureresilience #floodmapping #hydrogeomorphology #geomorphometry #aginginfrastructure -
Oggi c'è la terza e ultima giornata del corso sviluppo immagini! Parleremo di krita.
Ci vediamo all'edificio 11, aula C alle 17.15!Ci sarai?
La live sarà disponibile a questo link: https://www.youtube.com/watch?v=L_RuTsXr4_U
#krita #corso #poul #course #raster #image #immagini #disegno #digitaldrawing
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Hacking away at a CPU-only 2.5d engine. Still early days.
#graphicsprogramming #indiedev #raster #graphics -
Čia toks įdomus projektas bręsta: free and open source vector graphics editor and animation engine, now in alpha.
Siekia tapti one app to rule them all: graphic design, motion graphics, image editing, digital painting, page layout and print, VFX compositing.
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Transforming #Raster #Data with Continuous Functions in #ArcGISPro https://tinyurl.com/3pvfkkaz
#images #imagery #GIS #esri #arcgis #GISchat #geospatial #analysis @esri @esrislgov @arcgispro @esritraining @urisa
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#Day8 | Distributions – Circular | #30DayChartChallenge | Elevation distribution in the most circular department of Honduras. Built with #RStats using #sf, #raster, #exactextractr, #ggplot2, #ggnewscale, #ggtext, #dplyr, #terra, #showtext, #scales, #patchwork and #ggspatial.
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The supercells package creates compact and homogeneous regions from raster data, to aid interpretation, visualization and modeling, with noise reduction and preserving spatial structure #raster-data
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Scale Dependence In Remotely Sensed Biodiversity: Leveraging Continental-Scale Imaging Spectroscopy From The National Ecological Observatory Network [spatial analysis]
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https://doi.org/10.1002/rse2.70068 <-- shared paper
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https://doi.org/10.1038/s41559-022-01702-5 <-- shared paper
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#spectraldiversity #spectroscopy #spatialscale #US #NEON #NationalEcologicalObservatoryNetwork #species #ecology #humanimpacts #remotesensing #biodiversity #earthobservation #GIS #spatial #mapping #scale #scale #diversity #metrics #ecosystems #spectral #richness #scaledependency #principalcompoenent #divergence #spatialanalysis #raster #topography #climate #geomorphology #regression #geostatistics #vegetation #plant #area #region #largescale #continent #forest #tree -
I'm checking PixiEditor and it's doing much better than a couple of years ago.
Drawing with vectors right next to Pixel Art, next to regular image editing is wild, and I haven't even tried the procedural art yet.
Also, the No AI stance right there in the site's home screen 👌 That's what I want to see.
#software #noAI #pixelArt #proceduralArt #vectorArt #raster #foss #floss #linux #digitalArt
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What’s new in #ArcGIS GeoAnalytics Engine 2.0 https://tinyurl.com/y4vx2svd
#bigdata #raster #imagery #spatial #analysis #GIS #esri #GISchat #geospatial @esri @esrifederalgovt @esrislgov @esritraining @urisa
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Raster-enabling Apache Hop: @edigonzales continues his series on #geoenabling #ApacheHop, this time adding #raster support to his hop-gdal-plugin. Stefan walks through an #ETL pipeline that computes building heights from LiDAR and vector data using new raster transforms...
https://spatialists.ch/posts/2026/04/03-raster-enabling-apache-hop/ #GIS #GISchat #geospatial #SwissGIS -
TopoBathy Open Standard - Bathymetric Attributed Grid (BAG) [OGC]
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https://www.ogc.org/standards/bag/ <-- shared open OGC standard 🔗
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https://www.hydroffice.org/bag/main <-- shared example of #opensource software to interact with the #opendata BAG format 🔗
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[this post should not be considered an endorsement of a particular product and/or approach]
#GIS #spatial #mapping #opendata #opensource #standard #openstandard #BathymetricAttributedGrid #BAG #format #grid #raster #offshore #OGC #hydrography #submarine #survey #marine #ocean #bottom #hydrospatial #FAIR #openspecification #specification #bathymetry #depth #seafloor #vertical #datum #metadata #hydrographic
#OpenGeospatialConsortium -
Create universal classified #raster function templates in #ArcGISPro https://tinyurl.com/4aparvwa
#images #imagery #RemoteSensing #analysis #GIS #esri #arcgis #mapping #GISchat #geospatial @esri @arcgispro @esrifederalgovt @esrislgov @esritraining @urisa
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Adding Raster Attribute Tables to Rasters in QGIS (update 2025)
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Add a Legend for a Continuous Raster in the QGIS Print Layout
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Store Data, Styles and Project in a GeoPackage with QGIS
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Clip Channels and DEM to Catchment Boundary Polygon in QGIS
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Clip Raster by Mask Layer in QGIS
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Mosaic DEM Tiles in QGIS by Creating a Virtual Raster
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From Space To Field - Putting satellite insights into growers’ hands [OpenET]
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https://irrigationtoday.org/features/from-space-to-field/ <-- shared technical media article
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https://etdata.org/ <-- shared OpenET home page
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https://www.nasa.gov/image-article/openet-satellite-based-water-data-resource/ <-- shared NASA technical article
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https://youtu.be/Rbobf6aurLs?si=Q0kN9eiZH0gT8O5m <-- shared OpenET overview video
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#OpenET #openscience #opendata #publicgood #publicservice #nonprofit #fedscience #fedservice #evapotranspiration #ET #Landsat #OLI #OperationalLandImager #groundwater #water #hydrology #spatialanalysis #spatiotemporal #agriculture #USA #farming #waterresources #watermanagement #planning #watersecurity #satellite #remotesensing #earthobservation #model #modeling #irrigation #metrology #raster #cost #economics #efficiency #foodproduction #mobileapp #FARMS #view #download #usecase #reporting
#OpenET #USGS #USDA @NASA #USGS_EROS -
Sample Raster Values with Points in QGIS
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Convert Raster Cells to Points in QGIS
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Raster Proximity Analysis to the Minimum Distance to Classes in QGIS
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Reclassify Rasters by Table in QGIS