Can someone elaborate the difference between a Right-handed coordinate system and a left handed one?

so could someone explain the difference?



I’m guessing it means this

Right-handed

-1 0 1





Left-handed

1 0 -1





Also if your response is still relevant to my next question please answer it too!

This page(https://wiki.jmonkeyengine.org/legacy/doku.php/jme3:math) says the following…


jME uses a Right-Handed coordinate system (as OpenGL does).

The definition of a coordinate system is defined in jME by the properties sent to Camera. There are no error checks to insure that: 1) the coordinate system is right-handed


If it uses a righthanded coordinate system, is it not contradictory to say their are no error checks to ensure that the right handed coordinate system is existent?

I have a feeling their is a grammar/logic error or most likely I just don't know enough about Jme3 to know what it is detailing.

My thinking is this:



If you currently look at a right handed coordinate system we assume that to the right of the Y axis is positive and to the left is negative, but I think that if you use a left handed coordinate system then it is in reversed so to the left is positive and to the right is negative…

Because a picture says more than a thousand words:

http://i.msdn.microsoft.com/dynimg/IC155562.gif

2 Likes

Right Handed is a shortcut to remembering the relative positions of the axis.



http://bit.ly/LjjXNf

@shanebeastlyb said:
If it uses a righthanded coordinate system, is it not contradictory to say their are no error checks to ensure that the right handed coordinate system is existent?

I have a feeling their is a grammar/logic error or most likely I just don't know enough about Jme3 to know what it is detailing.

It's phrased a bit weird, but as i understand it, it just says: if you enter left-handed-coordinates, they will be wrong, but the system will not see that they are wrong. (since they are just triples of numbers).
1 Like