Mathematical XYZ ? 2004-02-26 - By RorrKonn
Back
TS Y is front to back in the Object info box "Location" when ya Modeling.
TS
Top +Z
Bottom -Z
Front +Y
Back -Y
Right Hand +X
Left Hand -X
LW,C4
Top +Y
Bottom -Y
Front -Z
Back +Z
Right Hand -X
Left Hand +X
LW's The Front and Back View our in Revers.Front means Back,Back means
Front.
Don't know about Carrera,Rhino.Rhino is on my to learn list, just haven't
gotten there yet.
Splines is not my preferred method of modeling.
RorrKonn
http://www.Atomic-3 (See http://mic-3.ora-code.com)D.com
I haven't worked with that many, but my guess would be that either it's a
matter of viewpoint (since X and Y are not necessarily designated as Front
or Side). XFrog seems to present the thing as I described above. I've
tried a little bit of Carrera and LW5, and either a littler bit of Rhino
(which I couldn't make head nor tail of), but all I noted was that the
first two have Z as vertical and I can't remember whetehr they had X as
"side to side" or not.
Come to think of it, I have to check tS but I'm trying to render a scene
right now - doesn't tS set X as being "front/back"...? It might because I
keep getting screwed up with the axes of objects.
As for the reason, my guess (just a guess) is that 3D apps are not designed
or written by mathemeticians. The people who write them seem to all agree
that Z is "Up/Down", from what (admittedly little) I've seen, but the X and
Y thing seems to be a point of disagreement.
HTH
- Kris M. Krieger
http://www.pterochromics.com
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