Latest Contributions by Bud

In Arcmap, there currently isn't an easy way to search for a street intersection via an Address Locator. I assume the same limitation exists in ArcGIS Pro. Could that functionality be added? I know we could create a point FC with the street intersection as a text field. And search it using the Features tab in the Find tool. But that's not as flexible as it needs to be. The Locations tab/address locator has more flexible logic that makes searching easy. It would be great if we could use that for searching for street intersections too. Thanks. ... View more

In ArcMap 10.7.1 (Oracle 18c SDE.ST_GEOMETRY): Using a geoprocessing tool, is there a way to identify polylines that have true curves? I know there is a hasCurves Geometry property in ArcPy for ArcGIS Pro. But I don't have access to Pro yet. And regardless, I'd rather use a GP tool for this, than ask my users to use a custom script. Thanks. ... View more

ArcPy: As far as I can tell, there isn't a way to create polyline vertices that have true curves. Could ESRI consider adding a method to the Polyline class for creating true-curve vertices?   ... View more

In the ArcPy Geometry Class documentation, could ESRI provide more detailed information about the hierarchical structure of gemetries? For example, provide a hierarchical diagram, kind of like we have for the SDE.ST_GEOMETRY spatial type, but for the ArcPy Geometry class: Like this, but better: - Geometry - PointGeometry - Multipoint - Point - Polygon - Ring (aka part) - Point - Polyline - Path (aka part) - Point That would help people who are trying to learn ArcPy understand how to access the various levels of the Geometry class. I know there is some info about that in the Cursor docs. But it doesn't explain the hierarchical structure of geometries. For example, as a novice, it was difficult to know how to iterate through a Polyline's components — to get at the individual points/vertices within a feature-part: import arcpy connection = "Database Connections\my_conn.sde" feature_class = connection + "\my_owner.my_fc" with arcpy.da.SearchCursor(feature_class, ["SHAPE@","OID@"]) as cursor: for row in cursor: geometry = row[0] print("Geometry/Polyline: {}".format(row[1])) for i, part in enumerate(geometry): print(" Part: {}".format(i)) for j, point in enumerate(part): print(" Point: {}".format(j)) >>> Geometry/Polyline: 100 Part: 0 Point: 0 Point: 1 Point: 2 Point: 3 Point: 4 Part: 1 Point: 0 Point: 1   It would help a lot if if we could get some more detailed information about the hierarchical structure. Thanks. ... View more

I have an ArcPy script that densifies polylines — to preserve any true curves that were in the features: (the curves become densified straight segments) with arcpy.da.UpdateCursor(fc, 'SHAPE') as cursor: for row in cursor: feature = row[0].densify ("ANGLE", 10000, 0.174533) #0.174533=radians Details: I don't want to densify straight segments, since that's not necessary here. I only want to densify the curved segments. So, in the densify function, I only really care about the TYPE and DEVIATION arguments. I don't need the DISTANCE argument, since all it seems to accomplish is adding vertices to straight segments (not what I want). densify (type, distance, {deviation}) densify ("ANGLE", 10000, 0.174533) #0.174533=radians With that said, I've noticed that the DISTANCE argument is mandatory. So I work around it by putting a dummy value of 10,000 meters in it, since there would never be a segment that big in my data. (I tried setting it to None but I got an error.) Question: Is there a reason why is the DISTANCE argument a required argument? Why can't it be optional, since for cases like mine, I don't want to specify it?   Have I misunderstood something? Thanks. ... View more

I have a multipart polyline FC that has true curves (Oracle 18c SDE.ST_GEOMETRY). I want to update the coordinates of the vertices in the lines via ArcPy — without losing the true curves: import arcpy connection = "Database Connections\my_conn.sde" feature_class = connection + "\my_owner.my_fc" spatial_reference = arcpy.Describe(feature_class).spatialReference with arcpy.da.Editor(connection) as edit_session: with arcpy.da.UpdateCursor(feature_class, "SHAPE@") as cursor: for row in cursor: geometry = row[0].densify("ANGLE", 10000, 0.174533) parts = arcpy.Array() for part in geometry: points = arcpy.Array() for point in part: point.M = geometry.measureOnLine(point) points.append(point) parts.append(points) row[0] = arcpy.Polyline(parts, spatial_reference) cursor.updateRow(row) The script reconstructs and replaces the geometry of the lines. So, unfortunately, it removes the true curves from the shapes. Before running script: After running script: Idea: Could ESRI consider giving us a clean way to edit vertices — without removing the true curves from the SHAPE?  - I don't want to densify the curves into straight segments...I want to keep the true curves.  - It would be ideal if there were a clean way to do this; not a workaround like converting to JSON and parsing out the curve info from the JSON text (would be messy/fragile). For example, a simple method like this would be helpful: UpdateVertex (shape, partNum, vertexNum, [z, m]) #It wouldn't replace the shape or replace the vertex. It would *update* a coordinate in the vertex. #So the true curves would remain intact. ... View more

Currently, it's not possible to determine if a SDE.ST_GEOMETRY line has true curves via SQL. For example, select lines where the SHAPE contains at least one true curve: Could ESRI consider adding a function to SDE.ST_GEOMETRY (Oracle) for this purpose? Something like: SDE.ST_HasCurves() Thanks. ... View more

It would be helpful if there were a out-of-box GP tool that could  batch-replace geometries from one FC to another — via a tabular relationship. Example: I have a polyline FC called FC-A. And I have an additional polyline FC called FC-B. I want to update the shapes in FC-A with the shapes from FC-B. I want to update the existing SHAPE values, without replacing the FC or replacing the records. The link between the two FCs is a tabular ID field. Currently, I don't think there are any tools that can do that.   ... View more

ArcGIS Enterprise/ArcMap 10.7.1 — Oracle 18c — SDE.ST_GEOMETRY I have a polyline FC called FC-A. And I have an additional polyline FC called FC-B. I want to update the shapes in FC-A with the shapes from FC-B. I want to update the existing SHAPE values, without replacing the FC or replacing the records. The link between the two FCs is a tabular ID field. I don't want to use a spatial relationship to link the two FCs. I think that would be unnecessarily messy. I've got a tabular relationship and I'd prefer to use it. Question: Are there any out-of-the-box tools in ArcMap that can batch-replace geometries from one FC to another via a tabular relationship? I know it would be possible with a SQL UPDATE script. But my users aren't SQL client users, so I'm looking for an OOB solution. ... View more