
10.DISPLAY OPERATION B-63324EN-1/03
- 448 -
YX
Z
180
°
X’
Y’
X"
Y"
Horizontal plane of rotation
30
‹
Fig.10.8 (f) Horizontal Rotation of a Coordinate System
- Vertical rotation angle
When the selected graphic coordinate system is a three-dimensional
one, such as 7 (XYZ), 8 (YZX), or 9 (ZXY), the coordinate system can
be rotated about a specified vertical rotation axis on a horizontal plane.
The rotation angle can be set in the range of -360 to +360 degree.
The vertical rotation axis on a horizontal plane can be specified with
the angle formed with the horizontal axis on the screen. The angle can
be set for parameter No. 4832.
In Fig. 10.8(f), shown below, graphic coordinate system XYZ is
converted into X’Y’Z’ because of the following settings:
Rotation angle of the vertical rotation axis: 65 degree
Vertical rotation angle: 20 degree
YX
Z
X’
Z’
Plane of rotation of the
vertical rotation axis
Initial vertical
rotation axis
Vertical plane of rotation
20
65
Y’
Vertical rotation ax is
Fig. 10.8 (g) Vertical Rotation of a Coordinate System