starseeker (Jun 10 2021 at 22:30): starseeker (Jun 10 2021 at 22:30):Hey @Sean , are these the expected results for the "tra" command in MGED? I'm seeing this as far back as 7.28.2...
mged> center 0 0 0
mged> ae 90 0
mged> center
0 0 0
mged> tra 0 0 50
mged> center
0 50 -0
mged> center 0 0 0
mged> tra 0 50 0
mged> center
0 0 50
mged>
I may be thinking about tra wrong, but it's surprising to me that the y value changes when I specify a z delta and vice versa...
Sean (Jun 11 2021 at 03:36):@starseeker Yes, that is expected results.
Sean (Jun 11 2021 at 03:36):It's awkward because of the specific azel choice and what you think tra is doing isn't what it's doing
Sean (Jun 11 2021 at 03:37):in view edit mode, tra manipulates the viewport
Sean (Jun 11 2021 at 03:37):with X being the horizontal, Y being the vertical
Sean (Jun 11 2021 at 03:38):Z is consequently in and out of the screen, which does nothing visible to an orthogonal view (you'd notice it move in perspective)
Sean (Jun 11 2021 at 03:40):so tra 0 0 50 moves the viewport back 50 units ... and moving back along an ae 90 0 side view happens to be the Y axis in model space
Sean (Jun 11 2021 at 03:41):it should make a lot more sense if you just think of it as "pan X Y [ignore]" to pan the viewport horizontally and vertically
Sean (Jun 11 2021 at 03:43):then it should make sense what the Z value does, especially if you set perspective 70 or something
starseeker (Jun 11 2021 at 12:24):/me nods. Phew, thanks - saw that in qged and had visions of having introduced some obscure low level bug somewhere...
Last updated: Jan 09 2025 at 00:46 UTC