Latest Contributions by WilliamCole

I am working on converting one of my ArcMap geodatabases [with associated maps]  to run on ArcGIS Pro.  In a Windows 10 22H2 environment. My ArcMap gdb for one of my maps includes about 30 historic map raster files each of which has its own control point table [CPT] attached.  When I open this gdb in ArcGIS Pro I see each of those raster files in the Contents panel under the Base Map heading.  Highlighting a single raster and then in the Imagery ribbon selecting the Georeference icon displays the Import Control Point Table icon.  Selecting that and then selecting the ArcMap-created CPT associated with that raster brings those settings into the ArcGIS Pro CPT properly placing the raster on the base map.  So far so good. However when doing this for a second raster, the CPT entries are added to the same ArcGIS Pro CPT as for the first raster creating an erroneously referenced image.  How can I assign each raster its own CPT so that the CPT entries do not combine with a previous CPT. Or am I going about this entirely wrong?  Clearly I'm in learning mode. Thanks very much. ... View more

Am running ArcMap 10.8 under Windows 10.  I have imported a number of ArcMap .mxd files into ArcGIS Pro.  Several of these maps have georeferenced maps attached.  How do I import those as well to ArcGIS Pro? Thanks very much. ... View more

Understanding Python dict Statement:   I am new to Python, so forgive me if I’m asking questions about what should be obvious. If this is posted in the wrong place, my apologies: please let me know where I should be posting this.   Using Python 2.7.   I am re-using and modifying 2014 code that was written by Martjin Pieters and posted to StackOverflow [message 5268929]. It allows for the comparison of two CSV files, reporting on the differences between the master and host files. I thank him for this head start. I am comparing a file exported from ArcGIS using ArcPy. Here it is:   1 #2/3/2021 2 #Source: Stack Overflow "Compare two CSV files and search for similar items” 3 4 import csv 5 6 with open('masterlist.csv', 'rb') as master: 7 master_indicies = dics ((r[1], i) for i, r in enumerate(csv.reader(master))) 8 9 with open('hosts.csv', 'rb') as hosts: 10 with open('results.csv', 'wb') as results: 11 reader = csv.reader(hosts) 12 writer = csv.writer(results) 13 14 for row in reader: 15 index = master_indices.get(row[3]) 16 if index is not None: 17 message = 'FOUND in master list (row {})' .format(index) 18 else: 19 message = 'NOT FOUND in master list' 20 writer.writerrow(row + [message])   I sort of understand most of it save one section of line 7 shown in the figure below (though not sure I’ve parsed [the colors] the components correctly):       The part highlighted in green is the one element of the dict entry I simply do not know how to read/interpret [what is ‘r’?; what is ‘i’ and what does ‘i) for i’ do; etc.]. If someone could point me to a place that I could learn about dict at an introductory level, hopefully with enough specificity that would help me to sort this out; that would be great. Just trying to get my head around this.   Thank you very much. ... View more