Latest Contributions by DarrenWiens2

Try taking out the space before your filename. Other than that, I think the 'wb' option might depend on your version of python, and possibly operating system. I'm using 2.6.5 on Windows 2008, but actually I was going off examples from 2.7. I see posts from 2.6 users who say to use 'w', so maybe try that. ... View more

You can use one of my favourite tools, Feature to Line, to make a lot of useful changes to road files. Set the XY Tolerance as low as possible, while still making the changes you want. ... View more

It sounds like it's going to be painful no matter what you do, but you might find some inspiration with the Snap tool (make a copy first). ... View more

Do you want distances between pairs of points along the stream, or between every pair of points in the feature class? You should check out the Near tool for 2D distances (requires ArcInfo license), or Near 3D for 3D distances (requires 3D Analyst). Aside from that, it would be a relatively simple python script to loop through all points and calculate the distances from the coordinates. ... View more

In the code block: If [QR] > 0.8 then result = "High" elseif [QR] > 0.6 then result = "Good" elseif [QR] > 0.4 then result = "Moderate" else result = "" end if In the expression: result ... View more

Your first line is trying to assign a value of "greater than or equal to 0.4" to the field [QR]. I assume what you mean is "[QR] is equal to 0.4" or: [QR] = 0.4 ... View more

This code will create and write to a new csv file. Unfortunately, it delimits every character, and I haven't figured out how to fix that. If you do, please post how. import arcpy, csv mxd = arcpy.mapping.MapDocument("YOUR MXD HERE") layers = arcpy.mapping.ListLayers(mxd) filepath = "NEW CSV FILE PATH HERE" writer = csv.writer(file(filepath, 'w')) for layer in layers:     if layer.supports("dataSource"):         writer.writerow(layer.dataSource) del writer EDIT: this works import arcpy, csv mxd = arcpy.mapping.MapDocument("YOUR MXD HERE") layers = arcpy.mapping.ListLayers(mxd) filepath = "NEW CSV FILE PATH HERE" writer = csv.writer(file(filepath, 'wb')) sourcelist = [] for layer in layers:     if layer.supports("dataSource"):         sourcelist.append(layer.dataSource) writer.writerow(sourcelist) del writer ... View more

VB allows you to dim as a datatype. VBScript doesn't. Delete "as string". ... View more

The problem is that your "for" is indented. You only indent after the colon (ie. after the "for"). ... View more

I'm not sure about printing (can't test here), but this will list the data source of each layer (help here) in a mxd (you can just as easily print the layer name): import arcpy mxd = arcpy.mapping.MapDocument("MXD PATH HERE") layers = arcpy.mapping.ListLayers(mxd) for layer in layers:     if layer.supports("dataSource"): # some layers might not support the property "dataSource"         print layer.dataSource ... View more

You should try selecting both lines and see if there are two (or more) records selected in your attribute table. This would indicate that there is duplicate geometry, as suggested in another thread. ... View more

If you post the code inside tags (see above the text box when posting), we can see your indentation (which is important in Python, btw). ... View more

Did you press F2 to finish your sketch in between screen shots? If not, give it a try. ... View more

I agree with Mark. Instead of downloading a contour shapefile, find a digital elevation model (DEM) and either symbolize it according to elevation, or create contours from it, or both (personally, I often like seeing both). ... View more

You can find extend and trim tools on the Advanced Editing Toolbar. ... View more