New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Handle degenerate cases in circumcircle-raw, triangle-spec #90

Open

Hendekagon opened this issue Jan 12, 2022 · 0 comments

Hendekagon commented Jan 12, 2022 •

edited

Loading

thi.ng.geom.triangle/circumcircle-raw returns nil for points that are the same:

(circumcircle-raw [0.5 0.5] [0.5 0.5] [0.5 0.5])
=> nil

causing a NPE in thi.ng.geom.utils.delaunay/triangle-spec :

(alter-meta! #'td/triangle-spec update :private not)

(td/triangle-spec [0.5 0.5] [0.5 0.5] [0.5 0.5])
Execution error (NullPointerException) at thi.ng.geom.utils.delaunay/triangle-spec (delaunay.cljc:40).
null

I can think of these options:

circumcircle-raw could return a zero-radius circle in this case - no errors but maybe undesirable
check for zero radius in triangle-spec and warn - slower but more friendly
add docstring warning in triangulate - at least users would be able to find out why

The text was updated successfully, but these errors were encountered:

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment