﻿ To move Nodes with Rotations
HyperCrash

# To move Nodes with Rotations

Four options are available to rotate nodes.  Each begins by selecting the Rotation window () tab.

## Method 1: pick the axis and define the rotation angle

 1 Click and in the graphic window, click the two nodes defining the rotation axis.

By default, the first node will define the rotation center.

 2 Define the rotation angle in the Angle field.
 3 Click Apply Rotation as many times as necessary to apply the defined displacement.
 4 If necessary, click the functions to undo or redo the displacement.
 5 Click Close to close the menu.

## Method 2: pick three nodes

 1 Click and in the graphic window, pick three nodes.

By default, node 1 will define the rotation center. The normal to the plane made by the nodes 1, 2, and 3 will define the rotation axis.  The rotation angle will be the angle 2-1-3.

 2 Click Apply Rotation as many times as necessary to apply the defined displacement.
 3 If necessary, click the functions to undo or redo the displacement.
 4 Click Close to close the menu.

## Method 3: pick the axis and pick two nodes

 1 Click and in the graphic window, click two nodes (nodes 1 and 2) to define the rotation axis and then click two other nodes (nodes 3 and 4) to define the rotation angle.

By default, the node 1 will define the rotation center.  The nodes 1 and 2 will define the rotation axis.  The rotation angle will be the angle between by the plane defined by the nodes 1, 2, and 3 and the plane defined by the nodes 1, 2, and 4.

 2 Click Apply Rotation as many times as necessary to apply the defined displacement.
 3 If necessary, click the functions to undo or redo the displacement.
 4 Click Close to close the menu.

## Method 4: Fill in the fields

 1 It is possible to directly fill in the fields defining the Rotation Axis (X axis, Y axis, and Z axis coordinates), the Rotation Angle (the angle in degree) and the Rotation Center (X, Y, and Z coordinates or Node Id or by picking a node using ).
 2 Click Apply Rotation as many times as necessary to apply the defined displacement.
 3 If necessary, click the functions to undo or redo the displacement.
 4 Click Close to close the menu.

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