bugGNU Octave - Bugs: bug #49774, convhull doesn't accept option...

 
 

bug #49774: convhull doesn't accept option simplify

Submitted by:  Juan Pablo Carbajal <juanpi>
Submitted on:  Tue 06 Dec 2016 01:09:40 AM UTC  
 
Category:  Octave Function Severity:  3 - Normal
Priority:  5 - Normal Item Group:  Matlab Compatibility
Status:  Confirmed Assigned to:  None
Originator Name:  jpi Open/Closed:  Open
Release:  dev Operating System:  Any

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Sun 11 Dec 2016 09:57:42 PM UTC, comment #3:

In the script from comment #1, ks=k.

You can see the behavior of "simplify"= true in the script

chull1.mat attached,

Note that 'simplify'= true omits all the points that if we drop them, the convex hull will not change.
In the 2D case it's simple:
if a few points are on a straight segment, the inner points are
omitted, and the end points are left.

(file #39198)

Avinoam Kalma <avinoam>
Project Member
Fri 09 Dec 2016 03:08:05 PM UTC, comment #2:

@Juan: Can you try the example in comment #1 and report back. I can't implement the feature until I know what it's supposed to do.

Rik <rik5>
Project Administrator
Tue 06 Dec 2016 05:02:28 PM UTC, comment #1:

Could you run the sample script in Matlab and upload the results so we can see what the "simplify" option does?

Rik <rik5>
Project Administrator
Tue 06 Dec 2016 01:09:40 AM UTC, original submission:

Option 'simplify' is not accepted. Couldn't find the equivalent for qhull

https://ch.mathworks.com/help/matlab/ref/convhull.html
http://www.qhull.org/html/qh-quick.htm#options

Juan Pablo Carbajal <juanpi>
Project Member

 

(Note: upload size limit is set to 16384 kB, after insertion of the required escape characters.)

Attach Files:
   
   
Comment:
   

Attached Files
file #39198:  chull1.mat added by avinoam (488B - application/octet-stream)

 

Depends on the following items: None found

Items that depend on this one: None found

 

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    Follow 3 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2016-12-13 rik5 StatusNeed Info => Confirmed
    2016-12-11 avinoam Attached File- => Added chull1.mat, #39198
    2016-12-06 rik5 StatusNone => Need Info

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