Latest Contributions by NeilAyres

I still see that the original image you posted above, doesn't have an actual "corner coordinate" in Lat/Long, unless there is some other text outside of the snapshot you have given us. How did you know the exact Lat/Long of that corner? ... View more

Just don't try and run them at the same time unless you have a huge amount of memory ... View more

Why does load fail? What is the error? It should work. Are the input and target the same type / coord sys / attributes??? da.InsertCursor will also work, but that seems a long way around to do what the standard tools will do. ... View more

And, if you load that layer into a new ArcMap session? What do you see? Extent, coord sys etc etc ... View more

How do you know that the original image was "IN" GCS? Was this produced by ArcGIS or something. Because if it was an original printed map or similar, it would actually be in some sort of projected system. Even though it has a GCS graticule marked on it. This is very common. Thus the corners (like on a standard 50k topo map), might have lat/long coordinates marked, but the map is actually in UTM or whatever system. You can still georeference this, when entering the control point, right click then you will see "Enter XY" and the second option is "Enter DMS". These will be automatically translated into the coordinate system of the data frame, which, of course, should always be the actual coordinate system of the map. ... View more

The only tool (I think) in the current toolbox would be XY table to Line. But for that to work you need a FromXY and ToXY in the same row of each record. So, what I would do would be a little MS access magic. Get your point data into a pgdb (access). Use AddXY or Calculate geometry to get 2 columns in the attribute table of the XY coordinates. Open the db in access. Create a query by adding the attribute table twice with no join. If you view this you will see you have a cross join where all records are linked to all records. Filter this so you don't have A -> A. In the output make table query, do some column name changes so you have columns like FromX, FromY, ToX, ToY etc. Bring the new table into ArcMap and use the XY table to Line tool. Be aware that if you have a lot of input records, the cross join will create input record length ^ 2 output records. ... View more

I am no expert on the setup of server and portal. So you must have done something wrong there. Plus web adapters etc etc. Sorry, no more advice from me.... ... View more

Do you have any experience of writing geometries? Start here : Writing geometries—Help | ArcGIS for Desktop And see the various properties of the data frame in the mapping module. ArcGIS Help 10.1 ... View more

Is this something to do with security certificates on the server? What happens if you "Accept" the unverified server connection? ... View more

I have used the really excellent LasTools tools from here : https://rapidlasso.com/lastools/ ... View more

Normally I assign the coordinate system at the lasd level, after loading the las files into it. I have rarely met a las file that has had coordinate information already attached to it. So, you should really go back to that Gov agency and find out what the correct coordinate system for their data actually is. But as Adrian says, if it is pitching up off the Nigerian coast, then maybe it is in GCS (geographic) and not a projected system. That is quite unusual. ... View more

Pixels are pixels. Generally square. If you want to you could load this image into a mosaic dataset then edit the boundary so the saw tooth edge doesn't show. ... View more

You could use a cubic convolution renderer (display tab of the raster properties). That will fuzzy the edges somewhat. ... View more

Well, I do not know what your db is, but if it is a spatially enabled database, there will be ways to create a temporary geometry from the points then do some overlay inside the db in SQL. But I am not an expert in that. But you will need some form of geometry both sides to use any sort of spatial query. ... View more