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Hello I just ran a model in Pro 2.0 trying to convert 97 Ascii files to raster and then mosaicking them all into one. Something seems to have gone wrong as the resulting file only covers a small part of the total area covered by the 97 individual files. The iterator in my model clearly points to a folder containing 97 files and I'm fairly confident the model was built correctly. To investigate what happened, I want to look at the ModelBuilder documentation window (the one that pops up when you start running the model and documents the process). I stupidly closed this after it finished and am not sure how to recover it. Any advice greatly appreciated.
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08-22-2017
03:11 AM
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1
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2
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801
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Hi everyone, I am trying to georeference a JPEG image in ArcGIS Pro 2.0 by manually entering known X and Y coordinates shown on the image (Eastings and Northings in the British National Grid coordinate system). I have now added 8 control points by choosing 'Add Control Points', clicking on the source layer (i.e. the image I want to georeference), right-clicking on the control point and entering the X and Y values. For some reason, these changes are not having any effect as the image isn't being updated with each point. Rather, I can see lines drawn from each control point on the source image to the location on the target layer (screenshot below). AutoApply is enabled, and I have tried manually updating the image by hitting 'Save' but the image isn't moving. Confusingly, some of the control points are not connected through lines on the map (see blue-coloured points at the bottom left of the image), although they are showing up in the Control Point Table. I have georeferenced images before in ArcMap and have never had any issues so I'm not sure what I'm doing wrong. Have they made any changes in Pro that I'm not aware of? Have I made any glaringly obvious errors? Thanks!
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07-28-2017
03:52 AM
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541
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I've managed to do it now using the 'Join Field' tool. I thought I could perhaps do this more elegantly using Python script in 'Calculate Field' but as a complete novice to Python it seems needlessly complicated. Thanks for your help anyway!
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06-20-2017
06:21 AM
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0
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964
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Thanks Dan. I tried to edit the table directly but it won't let me many any changes to the cells. See below - I can highlight the cells but cannot enter any values/text. I might try ArcMap instead of Pro to see whether that makes a difference.
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06-20-2017
05:22 AM
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0
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2
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964
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Hi, I have a raster dataset with cell values from 1 to 21, corresponding to different land cover types. I have added a new text field called 'Habitat' to the attribute table and would like to fill this based on call values, i.e. Value = 1 means Broadleaved woodland, Value = 2 means Coniferous woodland etc. I am using ArcGIS Pro 1.4. At first I simply tried to double-click the cells in the new field and type in the new text manually, as I would with a vector dataset. This didn't work and I am presuming this functionality isn't available for rasters. Next, I turned to the Calculate Field and, after looking at previous threads about this topic, attempted the following (I only used the first two values out of 21 to test the code): def Habitat(Value) if (Value = "1"): Habitat = "Broadleaved woodland" elif (Value = "2") Habitat = "Coniferous woodland" For the expression I used Habitat = (!Value!). Upon verifying this I got the following error message: Where did I go wrong? Is there an easier way of editing a field in a raster attribute table? Thanks!
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06-20-2017
04:24 AM
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0
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4
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1486
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Hi everyone I'm working on an ArcGIS Pro project for which I need to create a large number of subsets of the same feature layer. Previously, all newly created layers opened their attribute table 'docked' underneath the map I'm currently working on, which is how I want them to be displayed. The most recent one, however, suddenly brings up the attribute table in a new window next to my maps and layouts at the top. Any idea why this might be, and where I can find the setting to change this? Thank you!
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06-09-2017
03:38 AM
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0
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470
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Thanks Dan. I tried to let the model run overnight (in ArcMap 10.5 rather than Pro this time) and 18 hours later it's still at the buffering stage. Either there's something wrong in the way I constructed the model (this was my first attempt at ModelBuilder) or my processing power just isn't up to speed. When I tried to apply the first tool in the model (buffer with dissolve option) to the first dataset in my geodatabase separately, this finished in less than half an hour so it really doesn't make sense for the model to take this long. Surely the whole point of ModelBuilder is to save time, not to add to it!
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05-19-2017
12:22 AM
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0
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1
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1415
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Hi all I've built a model in Pro 1.4 that iterates through eight point layers in a geodatabase, each containing thousands of species records. I'm buffering each of these datasets (with the 'dissolve the output features into a single feature' option ticked) and finally clipping the resulting shapefiles to the Great Britain coastline. The model has been running for over three hours now and is still at the 'Buffer' stage (i.e. the first tool). The progress bar has been stuck at 52% for hours and I don't know whether or not I should keep waiting or cancel everything. I would just let it keep running while opening another session and trying to do the same thing manually for each file but it seems as if you cannot open multiple instances of ArcGIS Pro - is this true? If so this is a major drawback. Do you think it's possible that the model might still finish successfully or should I cancel it? How reliable is the percentage progress bar? And is it normal that, while the model is running, I don't seem to be able to do any other tasks such as opening attribute tables in the Table of Contents or expanding Geodatabases in the Project pane to see which files they contain?
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05-18-2017
04:30 AM
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0
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3
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2098
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Hi, I have buffered 10697 species records by 30km and want to remove all internal boundaries, i.e. turn 10697 polygons into a single one. I thought the Dissolve tool would be my best bet but, perhaps not surprising, the tool is taking unfeasibly long to run. It's been at 8% for more than an hour now, and my hopes of it running successfully are diminishing with each minute. Are there any other tools that would remove internal boundaries and return a single polygon that may run faster than Dissolve? Would Eliminate effectively do the same thing? I'm not interested in maintaining any of the attribute values, I'm just interested in the dimensions of the shapefile itself. Alternatively, perhaps I should reduce the number of points before adding the buffer in the first place. If I ran the 'Create Random Points' tool, used 30km as the Minimum Allowed Distance and then added a 30km buffer to all remaining points, would I end up with the same total area covered by the resulting polygons? I attach screenshots of the 30km buffers and the underlying 10697 points. I am using ArcGIS Pro 1.4 with Spatial Analyst extension.
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05-17-2017
04:30 AM
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0
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3
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1442
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BLOG
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Hi Richard Thanks for your reply. Do you have an email address I can send the data to? Do you need this as a .csv file (which is how I initially added the points before exporting them to point shapefiles) or the actual point file used when running the tool? The projection used was the British National Grid coordinate system so this shouldn't have caused the error. Thanks in advance for your help, and apologies for the delayed response - I have been in and out of the office a fair bit lately! Best wishes, Arne
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04-11-2017
09:18 AM
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0
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0
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5814
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BLOG
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Hi Richard Thanks a lot for posting this tool. I am trying to run this to create a series of range polygons around snake records across the whole of the UK (see below). I'm aware that the data may be too unevenly dispersed to create any enclosing hull - I am just playing around with different tools at the minute to see what works. Running your script, I keep getting the below error message. I have tried different k values but it always fails at 'line 57'. Do you have any suggestions? Thanks in advance for your help! My input data set:
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04-05-2017
06:38 AM
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0
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0
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5814
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POST
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Thanks Mervyn, I ended up using LinkageMapper after all (which is part of the Circuitscape project as far as I'm aware). I wasn't aware of the new Cost Connectivity tool, this sounds incredibly useful for the type of work that I do. I will make sure to update our organisation's version of ArcMap (currently still on 10.3.1).
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04-03-2017
08:14 AM
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0
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0
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1414
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POST
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Thank you Rebecca, that's very useful to know. I didn't know the GP history would be cleared automatically after a certain time!
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04-03-2017
08:10 AM
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0
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1
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1455
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Ah yes that's working now, thank you. I have actually already downloaded Conefor 2.6, one of the tools linked to in the post you mentioned. The reason I am running Linkage Mapper is a) to be able to produce a nice looking map of least-cost paths and b) to get a text file that quantifies cost-weighted distance between populations so I can use this as the distance file in Conefor (rather than simply using Euclidian distance). Is there perhaps another, simpler way of getting a text file/CSV for cost-weighted distances between points across a resistance surface?
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03-03-2017
07:58 AM
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0
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1414
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