topic Re: My GDL turns up-side-down in 3d in Libraries & objects

My GDL turns up-side-down in 3d

Anonymous — Tue, 10 Nov 2009 00:04:52 GMT

I've made a spotlight that is going to hang in a rail down from the ceiling .
I've started at the upper part (the part that is going to fit into the rail), and worked my way down with PRISM_ 's and CYLIND's, rotated axes a.s.o. At last I write DEL TOP.
In the 3d view in the GDL-editor, the object turn the right way. The axes (x,y,z) start at the top, as expected. And the Z-axes points downward.
I save it, and try to put it into the floorplan. I show it in 3d, and it's turned up-side-down.
What on eart is going on? Can someone try to help me, please?

Re: My GDL turns up-side-down in 3d

Barry Kelly — Tue, 10 Nov 2009 04:33:52 GMT

Sounds like you are just viewing it upside down in the GDL editor.
The z-axis should be pointing up, x-axis to the right and y-axis away from you.
Rotate it so this is the case and see if the light hangs down or goes up.
If up then a simple MULz -1 at the beginning of the 3D script should fix it.
Barry.

Re: My GDL turns up-side-down in 3d

Anonymous — Tue, 10 Nov 2009 08:29:19 GMT

Thank you very much! The MULZ -1 corrected the problem

Re: My GDL turns up-side-down in 3d

Anonymous — Tue, 10 Nov 2009 11:57:01 GMT

Hi Folks,

Thats why I don't use DEL TOP transformation... Always get full control of the script transformations. Its so easy to mess things up with DEL TOP.

HTH.

Re: My GDL turns up-side-down in 3d

Anonymous — Tue, 10 Nov 2009 12:43:00 GMT

I have to agree with Braza.

It's really hard to control your script using DEL TOP. (eg. if you want to put in a new parts to the script)...

Re: My GDL turns up-side-down in 3d

David Collins — Wed, 11 Nov 2009 17:46:39 GMT

ila2 wrote:
It's really hard to control your script using DEL TOP.

There's nothing worse than trying to track down a missing DEL statement in a complicated script. Long ago I got into the habit of noting what transformations each DEL was supposed to undo:

DEL 2 !ADD locate subassembly and ROTy rotate into place
DEL 1 !MULx resize length

Also, sticking a temporary PROJECT2 3, 270,2 statement in the 2d script is a quick way to check the orientation of the 3d script and to make sure the 2d symbol is aligned with the 3d object.