Autodesk LIGHTSCAPE, Manual

Page: 143 / 362

Setting Photometric Properties
135
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To position a LID in Absolute mode:
1.
In the Luminaire Properties dialog, select Abso-
lute from the Values list.
2.
Enter values in the X, Y, and Z boxes of the Posi-
tion group box.
3.
Click Apply to update the location of the bulb.
To position a LID in Relative mode:
1.
In the Luminaire Properties dialog, select Relative
from the Values list.
2.
Enable Drag in the Position group box, then drag
the LID point to its new position in the Graphic win-
dow.
Note: You can drag the LID only in an orthographic
view.
You can also set the X, Y, and Z coordinates in Relative
mode by clicking the Set XYZ button, which displays
the Set XYZ dialog.
3.
Click Apply to update the location of the bulb.
Rotating the LID
Rotation determines the direction of the light emitted
by the LID, relative to the luminaire geometry. For
example, if you position a light bulb on one side of a
square fixture, you could turn the light so that it is
emitted down out of the fixture, to the other side of
the fixture, or in any direction.
You can rotate LIDs in Absolute or Relative mode:
• Use Absolute mode to enter angles in the X, Y, and Z
boxes.
• Use Relative mode to enter an explicit offset amount.
Enable Drag to drag the rotation of the LID in the
Graphic window in the specified increments.
To rotate the LID in Absolute mode:
1.
In the Luminaire Properties dialog, select Abso-
lute from the Values list.
2.
Enter values in the X, Y, and Z boxes of the Rota-
tion group box.
The LID angle of rotation updates as you enter
numbers in the X, Y, and Z boxes.
3.
Click Apply to update the rotation of the bulb.
Values
list
Values
list