All Questions
Tagged with true-curves geometry
6 questions
2
votes
0
answers
115
views
QGIS converting MultiPolygon to MultiSurface - can I disable QGIS from doing this?
I have MultiPolygon data stored in a PostgreSQL DB (13.9) and am editing this through QGIS (using 3.28.3-Firenze). Occasionally when editing, some features are saved back as MultiSurface features. ...
- 21
4
votes
1
answer
414
views
Converting multipart polygon geometry with true curves to single parts loses true curves using ArcPy with ArcGIS Pro
I ran some test code below which creates four feature classes in a test geodatabase using ArcPy geometries in ArcGIS Pro 2.9.2:
MultiPartPolyGeom has one multipart polygon with two parts (one a 3-...
- 65.4k
1
vote
1
answer
87
views
Why does SDE.ST_NUMPOINTS() add extra vertices for lines with arcs?
Oracle 18c/10.7.1 EGDB:
I have a polyline FC with a feature that has an arc.
I want to count the number of vertices in the line using the SDE.ST_NUMPOINTS() function.
select
sde.st_numpoints(...
- 1,272
1
vote
2
answers
114
views
Does SDE.ST_LENGTH() calculate the true length of arcs?
Oracle 18c/10.7.1 EGDB
I have a polyline FC that has features with arcs.
Does the Oracle SDE.ST_LENGTH() function calculate the true length of arcs?
Or does it only calculate the straight-line length ...
- 1,272
2
votes
1
answer
111
views
Select SDE.ST_GEOMETRY polylines that have arcs?
Oracle 18c/10.7.1 EGDB:
I have an SDE.ST_GEOMETRY polyline feature class.
Some of the polylines in the feature class have arcs.
Question:
Is there a way to use Oracle SDE.ST_GEOEMTRY functions to ...
- 1,272
9
votes
2
answers
2k
views
Generating true curve elliptical polygons in file geodatabase using ArcPy?
As background, this question arose from trying to answer a question on How to generate overlapping polygons from lines output from Table To Ellipse tool?
Using the ArcMap 10.1 GUI it is very easy to ...
- 65.4k