[OT} English usage Re: Jog feature (Was: Zoom Patch)
- From: "Michael Ross" <michael e ross gmail com>
- To: "discussions about usage and development of dia" <dia-list gnome org>
- Subject: [OT} English usage Re: Jog feature (Was: Zoom Patch)
- Date: Fri, 5 Sep 2008 11:30:49 -0400
Jog is incremental, like a single pixel move. Also it means something like "to take small steps," hence its use as "to run slowly and lightly." In mechanical practice a jog is not always very smooth or light, it is often an impluse or step input with all the subsequent sharp accelerations and deaccelerations. Not a problem in the digital world where pixel changes "accelerate" images quite nicely as far as the eye can tell.
Creep is a very slow velocity move under manual comtrol. Creep has a lot of technical and colloquial meanings as well. Such as the the noun creep is derogatory for a malicious or unsavory person - creep(ing) like and insect or worm. It also means to compress under a load with time and elevated temperature. All slow continuous motion. I suppose pressing a cursor arrow approximates a slow continous motion - the jogger becomes a creeper.
On Fri, Sep 5, 2008 at 6:55 AM, Gan Uesli Starling
<gan starling us> wrote:
The speeds "jog" and "creep" were terms embossed into the teach gun of the world's first line of industrial (hydaulic) robots by Unimation corporation of Danbury Conneticut back in the 1960's.
The Unimate 4005J, built in the 60s and remanfuactured by Prab Robots through the 90's is still in commercial use today. Not new ones, mind, but the originals, continually maintained with replacement parts.
I was an engineer for Prab back in the 90's and I know a guy who still makes a living supporting old Unimates even now. Those things are beasts, powerful enough to pick up most modern robots and toss them through a brick wall. But you do have to be kind of careful when you are anywhere near one. They don't even have CPU's. The brain is all hard-wired TTL and runs on a 512K clock. Memory is a 2Kx32 ferrite core array. And they STILL work. LOL
Gan
Michael Ross wrote:
Could be an American colloqialism. To jog is a verb (with no conjugation) applied to machinery in the industrial rather than digital past. You might jog a conveyor belt to get it in just the right position for servicing for instance. It is a good analog for what we are talking about, you poke at a button and you get an incremental action. In this case we would want up/down/left/right and the cursor keys are commonly used to implement this. I use this in the CAD program I useto move tables, text, and views on a drawing. Or in LabVIEW, a graphical programming system, to adjust the position of controls on the GUI and function icons on the block diagram. Jogging ignores any grid or object snapping.
2008/9/4 Christian Ridderstrïm <christian ridderstrom gmail com <mailto:christian ridderstrom gmail com>>
On Wed, 3 Sep 2008, James McDonald wrote:
Absolutmente. Jogging is an excellent feature when it is
present.
Somewhat related, I think it'd be great if it was
possible to use
the arrow keys to move selected objects (in tiny steps).
If you implement a jogging feature, it would be great if it
had a preference to make a jog = 1 pix, mm, cm, pt etc.
Is it called jog feature in general? (I haven't heard this name
before).
I agree that the amount should be configurable. And if snap to
grid is on, that should work as well.
Maybe this should be added as a feature request?
regards,
/Christian
-- Christian Ridderstrïm, +46-8-768 39 44 http://www.md.kth.se/~chr <http://www.md.kth.se/%7Echr>
_______________________________________________
dia-list mailing list
dia-list gnome org <mailto:dia-list gnome org>
------------------------------------------------------------------------
--
Michael Ross
=================================
Cycling in Central North Carolina
Schwinn Voyageur 11.8
Linear LWB, Greenspeed GTO, BikeE CT, AT
[
Date Prev][
Date Next] [
Thread Prev][
Thread Next]
[
Thread Index]
[
Date Index]
[
Author Index]
