PRIM POSITION

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/LSL

PRIM_POSITION

Description

Constant: integer PRIM_POSITION = 6;

The integer constant PRIM_POSITION has the value 6

PRIM_POSITION is used to get or set the prim's position.

llSetPrimitiveParams

llSetPrimitiveParams([ ..., PRIM_POSITION, vector position, ... ]);

• vector

position

–

position in region or local coordinates depending upon the situation

The same syntax applies to llSetLinkPrimitiveParams and llSetLinkPrimitiveParamsFast but with an additional prefixed link parameter in the function call.

Caveats

• Depending upon the situation position may need to be in local coordinates or region coordinates, See llSetPos#Specification for details.
  • It is usually not a good idea to combine PRIM_POSITION with LINK_SET. The root will treat the coordinates as world or attachment, while the children will treat them as local, yielding inconsistent results or failure. If you want to move the object as a unit, use LINK_ROOT instead.
• The range the prim can move is limited if it is an unattached root prim. The distance is capped to 10m per PRIM_POSITION call. See WarpPos. This is a very special case. Do not rely on rule duplication of other flags - the results are undefined, and things will break in the future.
• Moving avatars with PRIM_POSITION
  • Moving the prim the avatar sat upon does not move the avatar.
  • Moving an avatar does not move the prim they sat upon.
  • Sit-target coordinates do not easily map to prim coordinates, use UpdateSitTarget.
  • If you have explicitally set your object as "static obstacle" for pathfinding , the function will fail with the error in the debug channel : "Unable to set prim position or scale: object contributes to the navmesh."
  • If position is greater than 54 meters away from the center, the repositioning will silently fail.

Avatars

Avatars sitting on the object can be moved with llSetLinkPrimitiveParams and PRIM_POSITION. This was originally a mis-feature but according to Andrew Linden LL has decided to support it.

Examples

The below example moves an avatar to x,y,z without moving the prim they are sitting on. If x,y,z is more than 54 meters away the call will silently fail. Remember x,y,z is in object relative coordinates just like any other linked prim in a set.

Avatars are always the last prims in the set, so llGetNumberOfPrims can be used for a single avatar sitting on a vehicle.

Example:

llSetLinkPrimitiveParams(llGetNumberOfPrims(), [PRIM_POSITION, <x,y,z>]);

llGetPrimitiveParams

llGetPrimitiveParams([ ..., PRIM_POSITION, ... ]);

Returns the list [ vector position ]

• vector

position

–

position in region coordinates

The same syntax applies to llGetLinkPrimitiveParams, but with an additional prefixed link parameter in the function call.

Caveats

• position is always in region coordinates, even if the prim is a child or the root prim of an attachment.

Caveats

Related Articles

Constants

•

PRIM_ROTATION

Functions

•	llGetPrimitiveParams
•	llSetPrimitiveParams
•	llSetLinkPrimitiveParams
•	llGetPos
•	llSetPos
•	llGetLocalPos
•	llGetRootPosition
•	llGetObjectDetails

Articles

•

warpPos

Deep Notes

Search JIRA for related Issues

Signature
integer PRIM_POSITION = 6;