The 'TopologyException: Input geom 1 is invalid' self-intersection error which arises from invalid polygon geometries has been widely discussed. However, I haven't found a convenient solution on the web that solely relies on R functionality. For instance, I have managed to create a 'SpatialPolygons' object from the output of map("state", ...) following Josh O'Brien's nice answer here. library(maps) library(maptools) map_states = map("state", fill = TRUE, plot = FALSE) IDs = sapply(strsplit(map_states$names, ":"), "[[", 1) spydf_states = map2SpatialPolygons(map_states, IDs = IDs, proj4string = CRS("+init=epsg:4326")) plot(spydf_states) The problem with this widely applied dataset is now that self-intersection occurs at the point given below. rgeos::gIsValid(spydf_states) [1] FALSE Warning message: In RGEOSUnaryPredFunc(spgeom, byid, "rgeos_isvalid") : Self-intersection at or near point -122.22023214285259 38.060546477866055 Unfortunately, this problem prevents any further use of 'spydf_states', e.g. when calling rgeos::gIntersection. How can I solve this issue from within R?

A port of the 'spReapportion' package, using Simple Features in order to lose the dependencies to the retired 'maptools' and 'rgeos' packages.

Most cloud-based mapping tools ask you to choose. You can have something simple that your whole team can use, or you can have something powerful that requires specialized training. GIS analysts know this tradeoff well. They’ve spent years learning desktop software that does exactly what they need, and they’ve watched colleagues struggle with those same […] The post Is Maptive Powerful Enough for GIS Experts & Analysts? first appeared on Flowster.

This is a book for Economists who regularly use spatial datasets for their econometric work.

> > Couldn't reproduce. > Do you have any mods installed which replace the player's hand? (besides default from MTG) > There was a bugfix which can break wrongly defined hand replacements. https://github.com/luanti-org/luanti/pull/15743 > Nodecore also had a problem, I addressed this about two months ago, I hope they fixed it. > > If I understand right what mods do you mean, yes. There are: > terraform > treecapitator > tunnelmaker > creative (in mtg) > replacer > worldedit > maptools > markers > tape_measure maptools removed, all other mods tested in singleplayer, without problems... this will be hard swimming among 250 mods... Statistics: Posted by MatyasP — Sun May 25, 2025 14:56 * * *

> Couldn't reproduce. > Do you have any mods installed which replace the player's hand? (besides default from MTG) > There was a bugfix which can break wrongly defined hand replacements. https://github.com/luanti-org/luanti/pull/15743 > Nodecore also had a problem, I addressed this about two months ago, I hope they fixed it. If I understand right what mods do you mean, yes. There are: terraform treecapitator tunnelmaker creative (in mtg) replacer worldedit maptools markers tape_measure Statistics: Posted by MatyasP — Sun May 25, 2025 12:05 * * *

Use the Running Reality desktop app or website to create your own videos, and customize how the map looks.

A port of the 'spReapportion' package, using Simple Features in order to lose the dependencies to the retired 'maptools' and 'rgeos' packages.

(4) Curso sobre el software estadístico R: La librería ma...