Autodesk LIGHTSCAPE, Руководство пользователя

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Photometrics 9
152
Lightscape
Symmetry
Use the Symmetry list to enforce the specified
symmetry on the photometric web.
Hemisphere
Use the Hemisphere list to control in which hemi-
spheres the light is distributed. The default
hemisphere setting is Both.
Horizontal Angle
Enter a value in the Horizontal Angle box to move
the current control point and distribution curve to
the specified horizontal angle.
Vertical Angle
Enter a value in the Vertical Angle box to move the
current control point and distribution curve to the
specified vertical angle.
Intensity (abs)
Enter a value in the Intensity (abs) box to set the
absolute intensity of the selected control points. The
intensity value can be any positive real number.
Intensity (rel)
Enter a value in the Intensity (rel) box to display the
intensity relative to the photometric web diagram.
The intensity value can be any positive real number.
Multiplier
The value you enter in the Multiplier box defines the
ratio between the absolute and relative intensities.
The multiplier value can be any positive real
number.
Saving Photometric Webs
You can save customized photometric webs as IES
files, which can then be assigned to a luminaire.
To save a photometric web as an IES file:
1. Create a photometric web. For more informa-
tion, see “Customized Photometric Web Example”
on page 153.
2.
Click Save As on the Photometric Web editor.
The Save As dialog appears.
3.
Enter the path and filename of the IES file, then
click OK.
The Photometric Web is saved to the specified file in
the IES format.
Note: You can also use the LID conversion utilities
to convert your LID to other file formats. For infor-
mation, see “Using LID Conversion Utilities” on
page 155.
Insert Add new control points by dragging
the cursor along an existing distri-
bution curve and clicking a loca-
tion.
Delete Delete control points from the web.
Distribution curves associated with
the point are also deleted.
Select: To:
Axial Set the distribution to the same val-
ue around all 360 degrees of the light
source’s vertical axis.
Quadrant Mirror the distribution about the
YZ and XZ planes.
Mirror
0-180 Mirror the distribution about the
XZ plane.
None Specify no symmetry.
Select: To:
Bottom Shine light down only.
Top Shine light up only.
Both Shine light in both hemispheres.
Select: To: