zone gridpoint system command

Syntax

zone gridpoint system keyword

Primary keywords:

global    local

Set the local coordinate system for gridpoints within the range. By default all gridpoints use the global coordinate system. The zone face apply logic may set gridpoint local systems when necessary to resolve velocity or acceleration conditions.

global

Set gridpoints in the range to use global coordinates.

local keyword ...

Set gridpoints in the range to use the local coordinate system. If only one direction is specified the other two will be determined automatically. If two directions are specified the second will be adjusted to ensure orthogonality and the third will be determined automatically. If three directions are specified the second and third will be adjusted to ensure orthogonality.

At least one direction must be specified.

direction-x v

Set the x-direction of the plane that defines the local coordinate system.

direction-y v

Set the y-direction of the plane that defines the local coordinate system.

direction-z v

Set the z-direction of the plane that defines the local coordinate system.