Latest Contributions by DanPatterson_Retired

/blogs/dan_patterson/2016/08/14/script-formatting  would help with line numbers You might want to check the field names to make sure.  Maybe show the results of your print statements. Was there an error? or didn't it work, it isn't clear from the output ... View more

The example I showed was for setting them both and it worked in ArcGIS Pro 2.5 ... View more

If more people would set appropriate defaults, it would solve lots of problems /blogs/dan_patterson/2019/11/28/the-solution-to-null-in-tables  ... View more

do you save the aprx? TextElement—ArcPy | Documentation  or are you hoping this does it interactively with the project open? ... View more

Jeff, LowestPosition is to enable on to examine data which may have a sequential nature.  For instance, data collected over time.  The example that is used represents 3 separate rasters collected at different times for some attribute.  If you are interested in "when" something happened you would use  Lowest Position—Help | Documentation  Highest Position—Help | Documentation  or even Popularity—Help | Documentation  For these tools, it is less about the value in the raster but the sequential nature of the data. The topic in the "concepts" section has further explanations which may make it clearer (or murkier  ) Finding the position from an input list meeting a specified criterion—Help | Documentation  ... View more

Don, there is a fuzzy section on tool validation code for web tools. Authoring web tools with Python scripts—ArcGIS Pro | Documentation  whether it applies seems to depend on what you are trying to validate ... View more

Your friend einsum....  The lengths are in sequential clockwise order from the start point (you can always determine/produce polygon points either as a separate feature class or values in a table.) def lengths(poly): """Polyline lengths or polygon perimeter.""" def _cal(a): """Perform the calculation, mini-e_leng.""" diff = a[:-1] - a[1:] return np.sqrt(np.einsum('ij,ij->i', diff, diff)) return _cal(poly) [lengths(p) for p in [b1, b2, b3, b4]] [array([ 10.0, 10.0, 10.0, 10.0]), array([ 10.0, 11.2, 11.2]), array([ 11.2, 10.0, 11.2]), array([ 11.2, 11.2, 10.0])] # ---- If you want to experiment b1 array([[ 10.0, 0.0], [ 10.0, 10.0], [ 20.0, 10.0], [ 20.0, 0.0], [ 10.0, 0.0]]) b2 array([[ 20.0, 0.0], [ 20.0, 10.0], [ 30.0, 5.0], [ 20.0, 0.0]]) b3 array([[ 15.0, 20.0], [ 20.0, 10.0], [ 10.0, 10.0], [ 15.0, 20.0]]) b4 array([[ 10.0, 0.0], [ 0.0, 5.0], [ 10.0, 10.0], [ 10.0, 0.0]]) ‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ ... View more

You can even do it in Pro if you want ... View more

put something in the map so it has data to work with ... View more

Chet,  my last line says exactly that.  The xy table will have to be converted to a featureclass, then either append or merge will have to be used to get existing and new data together.  The two are slightly different in how they do things.  Sounds like you could put together a model to do this, simply by using one of those two tools and XY Table To Point—Data Management toolbox | Documentation  ... View more

In your example, a majority filter with FOUR for number of neighbors should work in most situations Majority Filter—Help | Documentation  ... View more

There is no updating an existing file with new data except  Append—Data Management toolbox | Documentation  or if you want to create a new one from existing ones Merge—Data Management toolbox | Documentation  But it won't shortcut your xytable step ... View more