Latest Contributions by DarrenWiens2

Probably I'm confused what you're looking for. Are you making a tool that takes a parameter, entered by the user, and sets the workspace environment? If so, then yes, arcpy.env.workspace = arcpy.GetParameterAsText(0) would make the workspace equal to the value entered in the first parameter slot. If not, what exactly are you trying to do? ... View more

See: GetParameterAsText—ArcPy Functions | ArcGIS Desktop  ... View more

You could do that, too. In any case, the pattern is similar: make a copy, join/match, calculate. ... View more

Each degree is about 111 km apart at the equator, 12321 km^2 not 111 km^2. So, 0.5 * 0.5 * 852 * 111 * 111 = 2,624,373 km^2. ... View more

Make a join, then calculate. edit: using Python, you may be able to read all features of one feature class into a dictionary (depending on feature class size), then go through the features of the other feature class using an Update Cursor to change values. ... View more

3 word addresses are intentionally randomised and unrelated to the squares around them. To avoid confusion, similar sounding addresses are also placed as far from each other as possible. The app will account for spelling errors and other typing mistakes and make suggestions, based on 3 word addresses nearby. ... View more

Are you more likely to make a mistake spelling a real word, or writing down a list of numbers? ... View more

Calculate the area of the yellow polygon into a new field. Calculating area, length, and other geometric properties—Help | ArcGIS for Desktop  ... View more

See Dissolve. If memory serves, don't fill in a field to dissolve by to get a single feature (but, you may have to create a new dummy field and populate with a single value and dissolve on that). ... View more

It depends exactly how your files are organized, but essentially you run the tool between your two files and calculate area. ... View more

The ideal tool would be Identity, but it's only available with advanced license. Alternatively, first calculate the original area into a new field in your polygon file. Intersect it with the other file. This will leave you with a polygon showing only the overlap between the two files, but the attribute table will still hold the original area value. Calculate the new area into a new field. Calculate percent between original and new area. ... View more

Can you try adding mxd.save() to the end? ... View more

I believe you can reference feature layers as strings - they created a feature layer using MakeFeatureLayer. To use as variable, you'd need to set the variable to the output of MakeFeatureLayer. Jonathan, can you print the where clause, an example of 'Feature', and show the attribute table with a feature that should match the query. The query is likely just not matching anything. ... View more