Latest Contributions by NeilAyres

Doing this in python is actually quite complicated (imho). Some tips here, see example 4 Make Route Layer—Help | ArcGIS Desktop  ... View more

Better start doing some reading here : What are geographic coordinate systems?—Help | ArcGIS Desktop  What are projected coordinate systems?—Help | ArcGIS Desktop  What are map projections?—Help | ArcGIS Desktop  ... View more

I don't see anything in here to toggle visibility. arcgis.mapping module — arcgis 1.4.0 documentation  ... View more

Ever thought of using "/" instead. Too many back slashes... And those "" look a bit off. ... View more

Melita, if you can let me know where this info is stored in the metadata, that would be great. I have never managed to find it. Thanks, Neil ... View more

My 2c about all this stuff surrounding datum transformations. In general, I advise users to leave the data as it came and let ArcMap do the transformation on-the-fly. The reason for this is that at least you can see, by checking the transformation button in the df properties, what exactly is going on, ie which transformation is being used for whatever datum pair. This also means that if a new transformation becomes available, you can take advantage of it, if it provides a more "accurate" answer. If new data is created using either the project tool or an export from the df with a transformation set, once created, the knowledge of quite how that data has been transformed (which exact transformation and its parameters) is lost. You never know how it got to be where it is now. This has always been a problem with the documentation of data. ... View more

I take all that back in the previous message. Just ran the tests again using a custom level of detail xml. Basically just the google / bing LOD scheme but with 2 extra levels of detail below 1:1128. Both Desktop and Pro built the tpk in around 2mins. I think I left the background topo base map on when I first ran this in Pro, sorry. ... View more

Thanks for all the stuff about Spyder etc. Now got Spyder and the community edition of PyCharm running against Pro's python 3.5.? Actually, we only need Pro for the python API and its easy interface into connecting to portals and uploading stuff and publishing it. Just did some tests today using the Create Map Package tool. I manually made a mosaic with a small amount of ortho photo imagery in both systems (about 250Mb worth). Built overviews etc etc and set up a mxd / aprx for both (need this as input into the package tool). Running the tool I got : ArcGIS desktop 10.5 tool took <2min and output a tpk of 5.5Mb. Pro took > 20mins and its tpk was 32Mb. When loading them both into a portal here, I can see no visible difference between them. Strange ... View more

Having just done this myself... I pointed PyCharm to the python.exe in here : C:\Program Files\ArcGIS\Pro\bin\Python\envs\arcgispro-py3 ... View more

Dan Dan_Patterson followed your links to this post from Duncan. Probably a dumb question, so what is Spyder? Is it an IDE where you can develop, save and run python scripts or is it another python package? ... View more

And, please a full description of the input Dem. Is it in projected space? ... View more

Thanks for posting this Simon. Very interesting. As one of those "experts" in projections, datums and all that... , will this OGC standard now take over the world? ... View more

I see that the latest DNR GPS utility has an option to export to geojson. DNRGPS Application: Minnesota DNR  ... View more

It is very easy to re-project data from one coordinate system to another. Either use the Project Tool in Data Management / Projections and Transformations, or (which I use often), with the data in ArcMap, change the coordinate system of the data frame to the desired projection and then export the data in the coord sys of the df. Just check the actual coordinate system of the data using Arc Catalog, right click on the data and get the properties / Coord sys page. What software are you trying to import data into? ... View more