Your tutorial was very informative.

Thanks a lot!

LABourdillon wrote:

> smb wrote in message <36CE973E.98F23561@stuttgart.netsurf.de>...
> >
> >Why don't you post the .mdl here as a microtutorial, prestep to the
> >robot thing? I like 5 min crash courses, to get the principle.
> >
>
> At the risk of raising the ire of some individuals regarding the posting of
> binaries, I've attached a 4kb Moray *.mdl file that hopefully with show the
> essentials of IK effects. I'm still experimenting with this myself, so this
> info may not be complete or totally accurate.
>
> This Moray file uses a very basic set of the IK capability.   Moray V3.1
> Build 4325
>
> * With IK "off", construct the plane, three cylinders, and knob in the usual
> way
>
> * Construct a hierarchy as shown in the Select tab. That is, the FlagPole
> consists of Section1 and  a group named Sliders. The Sliders group consists
> in turn of Section2 and the union TopPole ( Section3 and the Knob).
>
> * Select the lower cylinder (Section1) and "freeze" it in all axes - access
> the "Transformation Limits" menu via the Modify button  in the Modify tab.
> Likewise "freeze" the remaining two individual Sections (cylinders) and the
> Knob (sphere) of the flagpole
>
> * Select the Sliders group; and again access the "Transformation Limits"
> menu. This time set the Z-axis range of motion (0 to 4 in this example) and
> enable IK Usage. This enables the entire Sliders group to move in the Z
> direction with a 4 unit range.
>
> * Select the "TopPole" union and in like manner set the Z-axis range (0 to
> 5) , enable IK Usage for this union. This now enables the TopPole union to
> move (an additional) 5 units in the Z direction. As the length of Section3
> is 7 units, the total extended height of the FlagPole will be 7 + 4 + 5 = 16
> units.
>
> * From the main menu bar, now turn IK "on" and by selecting the Knob, it
> should be possible (with the mouse cursor) to extend/retract the flagpole.
>
> Note that Groups and Unions in the IK chain are generally assigned the
> desired IK usage, while primitives (except for the last primitive) within
> the chain are frozen. Hope this is of some help.
>
> ...larry
>
>                     Name: FlagPole1.mdl
>    FlagPole1.mdl    Type: MorayW Document
(application/x-unknown-content-type-MorayWin.Document)
>                 Encoding: x-uuencode

--
+------------------------------+
|      Cristian Ramirez        |
|   ram### [at] entelchilenet    |
|                              |
|    Gregorio Maranon 1380     |
|        Vina del Mar          |
|            CHILE             |
+------------------------------+

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