Latest Contributions by BenLeslie1

‎12-08-2014

I reckon you just need a layer to which you can join your list of customers. Depending on the degree of accuracy you need to plot your addresses you may have options to buy a layer, use a free one (where are you based? UK postcode layer is free to download), or make your own.

‎12-05-2014

Dan Patterson's version of this tool may be better for you - it automatically calculates the length and width of the rectanges it generates (and there are no licence restrictions). http://www.arcgis.com/home/item.html?id=564e2949763943e3b9fb4240bab0ca2f

‎12-03-2014

Ha ha thanks Tim. Yes that's what I'm looking for...... well kind of..... typical ESRI: "usability, what's that?"

‎12-03-2014

Is there somewhere I can get a comprehensive list of which ArcMap tools are available at which licence level?....preferably in the form of an excel sheet so I can filter it.

‎12-03-2014

Just discovered these 'Street Edge', '1st Edge' tools - very useful..... essential infact in my workflow. But is there a reason why, when you subdivide a SHAPE the front face tends to be an internal face, but, much more usefully, when you subdivie a BLOCK the front face tends to be external? - as per the image. If the front face was external I wouldn't need to use these manual tools. Front-->Red Left-->Yellow Right-->Green Back-->Blue

‎11-28-2014

Version = 2014.1 Input = Shapefiles My shapefiles represent generalised footprints of groups of buildings so my first step is to Subdivide my shapes into individual footprints using the subdivide tool. I start with 666 objects in my layer (a small town) but after subdividing I have almost 400 000 - this is ridiculous and not a number my computer can reasonably deal with - from a visual check I estimate that my largest initial object is subdivided into no more than 50 objects (this should mean the absolute maximum number of objects I should end up with is 30 000). Here's a smaller example to illustrate: Input = 2 objects Subdivide settings - see image Result - 31 objects, however visual count suggests there should only be 20 - see image. It appears that some footprints have been duplicates - see image ETA -- I seem to get the same outcome in v2012.1 ETA_2 -- Attributes get completely screwed up too. So in my first example (666 initial shapes --> ~400 000 objects), I look at one footprint and I find that there are 127 duplicates - and all of them have different attributes i.e. Duplicate1: Category = RES, Area = 3005 Duplicate2: Category = RES, Area = 2676 Duplicate3: Category = COM, Area = 17165 Duplicate4: Category = IND, Area = 22046 etc.

‎11-25-2014

Sounds like CityEngine but that's been around a while (since 2010 at least) and is a stand alone application, it's not dependent on 10.2.

‎11-20-2014

Can you explain why you need to convert the count into a string? I'd been trying to make this work for a little while and that was my problem - hadn't converted count into string.

‎11-18-2014

I too am having difficulty defining the subdivide settings using Python. I'm attempting to do a select by attribute followed by a subdivide - similarly to Jack de Valpine the code works with some subDivide settings defined, but when I add other settings (such as setSimplify) the code does not work. Does it matter what order settings are defined? Here's my code - I must say I've only really worked with arcpy before and I'm finding this code a little alien: def selectByAttribute(attr, value): objects = ce.getObjectsFrom(ce.scene) selection = [] for o in objects: attrvalue = ce.getAttribute(o, attr) if attrvalue == value: selection.append(o) ce.setSelection(selection) selectByAttribute("buildCat", "Residential") shapes = ce.getObjectsFrom(ce.selection()) divset = SubdivideShapesSettings() divset.setLotAreaMin(200) #divset.setIrregularity(0) #divset.setSimplify(1) #divset.setLotSubdivisionMethod("SKELETON") ce.subdivideShapes(shapes, divset)

‎11-10-2014

ok so I don't really understand the problem but I defined an extent and it seems to work now. I can define the extent at the beginning as the whole world but, as expected, the script runs slowly. So I calculate the extents for each raster pair in turn. arcpy.env.extent = arcpy.Extent(minX, minY, maxX, maxY) .......hmmm, I also set snap raster to be the same as input raster as just setting extend produced inaccurate results - I don't understand why I have to do this when my input1 and input2 have same cell size and cell alignment. arcpy.env.snapRaster = inRast

‎11-09-2014

But what can I do about it? I've created a mask shapefile that encompasses all my files but it hasn't helped - I'm not clear on what the mask does. Can I somehow clear a cache so it's recreated. It does always fail on the same one, but that's not the only one that fails. I thought it might be a problem with cell size but files that have smaller and larger cells have passed through ok. Files that include nulls have also passed ok. This is the full script - and then the botton 4 lines repeat some 500 times with different inputs and outputs. The point of the script is to look for differences in elevation in adjacent tiles - each tile has a 1 row or column of pixel overlaps with its neighbour. import arcpy import os from arcpy import env arcpy.CheckOutExtension("Spatial") from arcpy.sa import * env.workspace = "c:/myfiles" arcpy.env.mask = "c:/maskpoly.shp" inRast = "E000_N00.tif" inRast2 = "E000_N01.tif" outRast = Raster(inRast) - Raster(inRast2) outRast.save = "c:/E000_N00a.tif"

‎11-07-2014

Is there a way to aggregate polygons and rasters. i.e. so I can populate my polygons with a maximum underlying elevation from the raster. As far as I can tell, with the tools available in Arc, I would have to convert my rasters into polygons first - do I really have to do this it seems a bit long-winded?

‎11-07-2014

Hi I'm doing a python script that does: outRast = Raster(inRast1) - Raster(inRast2) I have about 500 of these to process however after about 100 of these the script fails with the warning: "ERROR 010422: Error in processing the environment mask" The trouble is that I cannot see anything different in the rasters being processed when the script fails compared to all the ones it has already completed. I added a shapefile that encolses all the rasters arcpy.env.mask = "mask_poly.shp" but this hasn't helped. I'm stuck for things to try.

‎10-29-2014

I'm trying to use UpdateCursor to insert some text into an attribute. The attribute is a text field ten characters in length. However the script will only work for values of one character in length. i.e. if MyValue = "A" the script works but if MyValue = "All" the error says 'sequence size must match size of the row' with arcpy.da.UpdateCursor(MyFeatureLyr, MyAttribute) as cursor: for row in cursor: cursor.updateRow(MyValue)

‎10-27-2014

Ah I think need to work the other way round and make your image fit the xy coords instead..... So, pick a coord system, load your xy coords as points (or whatever), and then using the Georeferencing toolbar resgister the image to the coordinates. Hope this makes sence.

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My Ideas

Latest Contributions by BenLeslie1

Re: Trying to get my feet wet. Need help with first map

Re: parcels large enough for a 1,000 yard shot

Re: ArcMap Licence levels

ArcMap Licence levels

Re: Front Facade

Subdivision - duplicates being created

Re: 3d Building Footprints

Re: Extract Data - Deleting Empty Feature Classes

Re: SubdivideShapesSettings - setLotSubdivisionMethod

Re: Environment mask ERROR 010422

Re: Environment mask ERROR 010422

aggregate polygons and raster

Environment mask ERROR 010422

UpdateCursor - sequence size?

Re: Using a non-georeferenced coordinate system

Re: Dissolve polygon and retain attribute fields

Re: Building height with roof

Re: geometry.isOriented and even issue on roofs.

Re: roofShed generates at half height when the roo...

Re: Strangeness - gaps unintentionally created whi...