Latest Contributions by IanMurray

My computer is about 5 years old, and it took about 3-4 minutes.  I left coordinate system as unknown since it was raw lat/long.  If it was in a coordinate system, you can use define projection to give it a projection. ... View more

Hi Brian I had no problem plotting all your points, I selected all the cells in excel prior to bringing it into ArcMap and made sure they were formatted to number, with 6 decimal places, and all 74622 displayed following the steps your followed.  It took a while for all the points to be created though. Here is a copy of the shapefile. ... View more

You might do better looking at the Con Spatial Analyst tool help, since that is the tool that is being used inside raster calculator. But yes, your syntax looks correct, you are evaluating  if the value of the cell of Band1 is 255 and Band2 is 255 and Band 3 is 255, make it a 1, otherwise zero.  I might put all the & statements in parentheses as well if it is not working properly. ... View more

Are you working from a script file(.py) or are you working in the python window interactively(either in IDLE or ArcMap?) ... View more

Sorry my earlier reply was not quite as helpful as I meant it to be. This is a good paper for feature classification from LIDAR datasets, it might be a good starting point for you.  www.researchgate.net/publication/251601091_Object-oriented_land_cover_classification_of_lidar-derived_surfaces/file/72e7e52150bc74a30a.pdf I'd review some more literature on the subject and it might give you an idea on where you want to go with it. ... View more

Just a thought, since ArcMap is for viewing and editting 2-D features, perhaps you can only edit the x and y in an edit session in ArcMap, and Z values are not given.  Try editting your 3-D line in ArcScene and see if it has a Z value. ... View more

Hi Brittany, To the best of my knowledge, there is no way for an .eps to be brought directly into ArcMap.  The file would have to be converted to an accepted file format to be brought in.  However, you can export whatever map you make in ArcGIS after converting it into a .eps. http://www.esri.com/library/fliers/pdfs/data-interop-formats.pdf Importing .EPS-files into ArcView (really old, but only thread I could find on it) ... View more

Hi Donald, There has been significant research in using LIDAR to aid feature classification in conjunction with other forms of remote sensing (IfSAR, Aerial Imagery, Hyperspectral imagery, etc.), but not a great deal for feature classification using only LIDAR data except in urban settings(generally for extraction of building footprints), or in some cases in forested areas for road feature extraction. This is somewhat similar to a project I am working on, do you have much experience working with Lidar data, and what sort of data do you have in your tifs? ... View more

Yea that would be quite a pain to do manually. If you don't mind can you mark this question answered, will make it easier for people to find in the future if they have a similar issue. ... View more

You are quite welcome.  Just out of curiousity, why are you needing to delete so many layers from so many map? ... View more

arcpy Layer objects have a isBroken property you can check if is true or not.  If it is true, then have your script remove the layer, instead of all layers try this: for layer in arcpy.mapping.ListLayers(mxd, "*", df):     if layer.isBroken:         arcpy.mapping.RemoveLayer(df, layer) ... View more

Hi Collin, Please check this thread. KML to Layer Issues If that doesn't help, can you post your KMZ file? ... View more

I'm stumped, I have a code extremely similar to this that I use all the time for making polygons from a json and it reads almost exactly the same as mine.  The only difference I had was creating the Polygon object first, instead of in the cur.insertRow. Sorry I couldn't help more. ... View more

Thats actually what I did, not that I think it had any bearing on the script working. Thanks again James ... View more

Try making your polygon object first, then using it  in the cursor.insertRow import arcpy array = arcpy.Array() array.add(arcpy.Point(-92.09936200, 46.73024000)) array.add(arcpy.Point(-92.09936200, 46.73137900)) array.add(arcpy.Point(-92.09782100, 46.73137900)) array.add(arcpy.Point(-92.09782100, 46.73024000)) array.add(arcpy.Point(-92.09936200, 46.73024000)) cur = arcpy.da.InsertCursor("onecall_poly", ["SHAPE@"]) polygon = arcpy.Polygon(array) cursor.insertRow([polygon]) ... View more