Latest Contributions by DarrenWiens2

Yes, your new polygon can overlap the existing polygons, but it must be in a new feature class (not the same feature class as your existing polygons). When you run Erase (or Symmetrical Difference), the area in your new feature class overlapped by your existing polygons should disappear - or at least, that's the idea. ... View more

Ah, good to know about Symmetrical Difference. Jason Buck​'s suggestion will save you the Append step. ... View more

1.) Draw a big, rough polygon in a new feature class, covering the space you want to add. It can overlap with the existing polygons. 2.) Erase the existing polygons from the new polygon. 3.) Append the new feature class (your big polygon with the existing polygons erased) to the existing polygons ... View more

To state the obvious, the key point is: you can do this overlay analysis if you have the data. If you're interested in whether your points overlay (or are within a distance of) a water feature, you need a water body feature class. You will not be able to automate the process very much if you only have a WMS basemap - you don't have access to the data. ... View more

I don't have a working model for you, but if you're willing go down the Python script route, your main workflow would be something like: 1.) loop through your rasters 2.) use Make Feature Layer to create a (temporary) layer for the polygon that matches your raster 3.) use Extract By Mask to extract the pixels overlapping your polygon to a new raster ... View more

Dissolve should never delete a feature. Run Dissolve with no feature selection, otherwise it will only consider the selected features. Make sure you've saved your edits before running the tool, otherwise it may only consider the saved features. Also, you select attributes if you want to group the output. Since you want everything dissolved into a single feature, do not select an attribute to dissolve upon. ... View more

The main tool you're missing is Dissolve, or Editor Merge, both of which may combine multiple features into a single feature. I'll draw your attention to the Unsplit option in Dissolve - if checked this will only dissolve lines with an end point in common, which will aid you in finding those that may not have snapped during digitization. ... View more

You can definitely parse your string to make simple geometries like point/line/polygon using arcpy geometries​, however I don't believe it's possible to create true curves - you're stuck with straight line segments. If straight segments are acceptable and you're having issues parsing your COGO statement/creating geometries, please provide an example of a line/curve table row (I'm not familiar). ... View more

If you have ET GeoWizards, the tool to generate perpendicular lines is Create Station Lines. Or, you can use arcpy geometry objects, as outlined in this thread. ... View more

Without fully reading your individual scripts, is there a problem with simply copy/pasting them one after the other into one script? ... View more

I interpret this as wanting to smear the boundary values, which Euclidean Allocation should do. ... View more

I don't use Model Builder much, but I'd look into Iterate Feature Selection. ... View more