[Opensim-users] creating bots at negative elevation

[Justin Clark-Casey]

By negative elevation, I presume that you mean below some arbitrary plane, rather than below ground? 
ScenePresence.CompleteMovement(), which is how the NPC (and any avatar) enters a scene does have code to prevent 
attempted rezzing below ground.  This is just using a 1.5f constant.  It's possible that if you're very near the ground 
then you would have a problem.

On 31/01/12 20:56, paul emery wrote:
> I need to create some bots in our model of titanic which is underwater AND in
> fact is at negative elevation. My trigger object has a notecard with the bot
> information in it and a script with a touch_start event handler.
> In the touch event are these lines of code.
>
> vector npcPos = llGetPos()+<.5,0,0>;
> pc = osNpcCreate("Mr.", "Bot", npcPos, "mycard");
>
> What i find is that if the object is at zero elevation or above the bot is
> created half a meter from the object's position. However, if the object is
> at a negative elevation the bot is created at zero elevation and falls down
> to the elevation of the trigger object. This is interesting. Note that if
> the trigger object is up at any positive elevation the bot is created at
> that elevation.
>
> The problem is that if i try to create a bot at a negative elevation in a
> room below deck i.e. that has a non-phantom roof the bot never can fall all
> the way down because they are not able to fall through the roof.
>
> Any body got any ideas on how do deal with this. It does seem like expected
> behavior would be to allow npcPos() to include negative elevation.
>
>
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Justin Clark-Casey (justincc)
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