Function
- Declare a local coordinate system for selected nodes to enter boundary conditions or produce output for reactions.
Call
From the main menu, select [Node/Element] tab > [Node Detail] group > [Node Local Axis]
Input
The right 
of Node Local Axis
Display Node Local Axis Table
Options
Add/Replace : Enter or replace a local coordinate system for selected nodes
Delete : Enter or replace a local coordinate system for selected nodes
Define Local Axis
Input Method : Select a method of specifying the node's local coordinate system.
Angle : Specify 3 angles of rotation to define the node's local coordinate system
about x
Angle of rotation about GCS X-axis
about y
Angle of rotation about y'-axis rotated about X-axis
about z
Angle of rotation about z"-axis rotated about X- and y'-axes
3 points : Specify 3 nodal coordinates to define the node's local coordinate system
P0
Coordinates of the origin of the node's local coordinate system
P1
Coordinates of an arbitrary node on the node's local x-axis
P2
Coordinates of a node moved from P1, parallel to the node's local y-axis
Vector : Specify 2 vectors to define the node's local coordinate system
V1
x-direction vector starting from the origin of the node's local coordinate system
V2
ector starting from the origin of the node's local coordinate system to the point P2 of the 3 points method above
Line Vector : Specify a reference line to define the node's local coordinate system.
Direction
Select the component of node local axis. Selected component will be aligned into the orthogonal direction of the reference line.
Ref. Point
Specify 2 nodes to define a reference line.
P0 : Coordinates of the origin of the reference line
P1 : 2nd point of the reference line to determine the direction of reference line.
Global Direction
Specify a origin point and global axis to define a reference line.
P0 : Coordinates of the origin of the reference line
P1 : Component of the GCS axis to determine the direction of reference line.
The followings are the application functions for Node Local Axis:
"Supports"
"Point Spring Supports"
"General Spring Supports"
"Surface Spring Supports" (Convert to Point Spring)
"Specified Displacements of Supports"
Reactions > "Reaction Forces/Moments"
Influence Lines > "Reactions"
Influence Surfaces > "Reactions"
"Displacements"