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[Octave-bug-tracker] [bug #55752] Quaternion Package rot2q.m can't handl
From: |
Rick T |
Subject: |
[Octave-bug-tracker] [bug #55752] Quaternion Package rot2q.m can't handle multiple inputs but the quaternion constructor can |
Date: |
Wed, 20 Feb 2019 17:01:21 -0500 (EST) |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Ubuntu Chromium/71.0.3578.98 Chrome/71.0.3578.98 Safari/537.36 |
URL:
<https://savannah.gnu.org/bugs/?55752>
Summary: Quaternion Package rot2q.m can't handle multiple
inputs but the quaternion constructor can
Project: GNU Octave
Submitted by: ratulloch
Submitted on: Wed 20 Feb 2019 10:01:20 PM UTC
Category: Octave Forge Package
Severity: 3 - Normal
Priority: 5 - Normal
Item Group: None
Status: None
Assigned to: None
Originator Name:
Originator Email:
Open/Closed: Open
Discussion Lock: Any
Release: 5.0.91
Operating System: GNU/Linux
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Details:
The rot2q.m function found in the Quaternion package seems not intended to
handle multiple inputs. On the other hand the quaternion constructor can
handle multiple inputs.
Test code that errors with:
"error: rot2q: first argument 'axis' must be a length three vector
error: called from
rot2q at line 74 column 5
test_quaternion_array_coversion at line 10 column 21"
clear all
pkg load quaternion
xyz_angle=[0 1 0 1.570796326794897;0.5 1 0 1.570796326794897]
pt_xyz_angle_to_quat=rot2q ([xyz_angle(:,1),xyz_angle(:,2),xyz_angle(:,3)],
xyz_angle(:,4))
This is my logic:
1) Convert multiple xyz points in array to quaternions using the function
rot2q
2) Do calculations on multiple points from array in quaternions using the
function quaternion
3) Convert quaternion array data back to xyz points using the function q2rot
4) Plot new xyz points using the function scatter3
Kai Torben Ohlhus from the Octave list
Recommended some possible changes see attached files of Kai's code
suggestions.
_______________________________________________________
File Attachments:
-------------------------------------------------------
Date: Wed 20 Feb 2019 10:01:20 PM UTC Name: rot2q_changes.m Size: 4KiB By:
ratulloch
<http://savannah.gnu.org/bugs/download.php?file_id=46319>
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<https://savannah.gnu.org/bugs/?55752>
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- [Octave-bug-tracker] [bug #55752] Quaternion Package rot2q.m can't handle multiple inputs but the quaternion constructor can,
Rick T <=