Latest Contributions by ShaunWalbridge

Hello Annie O'Donnell‌, The trick posted on the GitHub issue works nicely because the dimensionality of a point can easily be represented in a tabular form, by expanding the X and Y coordinates into two columns. For higher dimension objects like polyline, it doesn't work directly because of the dimensionality difference. While you could build up lists to represent this data, I think it'll be less work to convert the data into sp class objects. For Polyline, you'll want SpatialLinesDataFrame (sp documentation), or to manually populate a SpatialLines object from a collection of lists. Here's a short example updating the first coordinate of the first polyline, and saving it back to a new FGDB feature class: library(arcgisbinding) arc.check_product() setwd('c:/temp') input <- file.path(getwd(), 'r_test.gdb', 'polyline_example') d <- arc.open(input) df <- arc.select(d) g <- arc.shape(df) sp.df <- arc.data2sp(df) first_polyline <- sp.df@lines[[1]]@Lines[[1]]@coords # update the first Y coordinate first_polyline[1,2] <- 4812088 # overwrite the first polyline in the data frame sp.df@lines[[1]]@Lines[[1]]@coords <- first_polyline # convert back df.modified <- arc.sp2data(sp.df) output <- file.path(getwd(), 'r_test.gdb', 'polyline_modified') arc.write(output, df.modified)‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ Let us know if that does what you need. Cheers, Shaun ... View more

Hello Ian, Thanks for a detailed example of what you're trying to do, very helpful. From what I understand, dplyr expects data frames that are very close to the base R representation. This affects other rich representations, like sp objects. I don't know of an immediate solution to bridge this discrepancy, but fortunately there's another way. Michael Sumner has created the spdplyr package, which lets you use some of the functionality of dplyr on sp objects. Here's your script instead using the sp representations: library(spdplyr) library(arcgisbinding) arc.check_product() fc <- arc.open(system.file("extdata", "ca_ozone_pts.shp", package="arcgisbinding")) d <- arc.select(fc,fields=c('FID', 'ozone')) d.sp <- arc.data2sp(d) p <-arc.select(fc,fields=c('FID', 'ozone')) p.sp <- arc.data2sp(p) p.sp$ozone <- p$ozone*2 joined <- left_join(p.sp, d.sp, by="FID", copy=TRUE) joined.df <- arc.sp2data(joined) arc.write(tempfile("ca_ozone_pts_joined", fileext=".shp"), joined.df)‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ Let us know if that'll work for your needs, or you need something different for what you're trying to do. You can do everything with just plain data frames, then later join on FID to bring that back into a single data source, but this is a nicer approach if it'll work for you. Cheers, Shaun ... View more

Hello Wim, At this time, this isn't possible. The R-ArcGIS bridge communicates to both environments on the same machine, and there isn't a current mechanism to share information across multiple machines. If you can access the data you need as REST endpoints, you can use that information in R, albeit without the richer integration of the bridge. If you can describe a little more what you're trying to accomplish and what precludes R from being installed in the ArcGIS environment, I'd be happy to look at this with you in more detail. Cheers, Shaun ... View more

Francesco, This issue (#9 on Github) is now fixed in the latest (1.0.0.125) version of the R-ArcGIS bridge. Let us know if you notice any issues around this. Cheers, Shaun ... View more

For package managed software like R and Python, it's typical that installers don't modify packages that have been added by the user after installation, only the base software is removed. So, if you uninstall R, you'll still have any R packages left on your machine, including the arcgisbinding package installed by the R-ArcGIS bridge. To remove it, you can do so from the R prompt with the command   remove.packages('arcgisbinding') Unlike other software, R packages are self-contained and don't have any interaction with the system, so won't have any continuing interactions with other programs or the operating system if left. Cheers, Shaun ... View more