Calculate General Photometrics
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The Calculation General Photometrics command is used to calculate point-by-point photometrics inside of general calculation areas. All of the settings available in the command are the same as the Calculate Egress Photometrics command. This sections describes the options available for these two commands.
The two commands use different light fixtures and different settings on the light fixtures. See the General Versus Egress Photometrics section for more information about these differences.
To run general photometric calculations, go to
Ribbon: DM Electrical->Point-by-Point Photometrics-> Calculate General Photometrics
Pulldown Menu: DM Electrical->Point-by-Point Photometrics->Calculate General Photometrics
Calculate Photometrics Dialog Box
Contour Level 1 - 10: Enter the illuminance level at which to draw contours. You can have up to 10 contours. Contours set to 0 will not be drawn.
Layer or Color: Enter the layer or color of the contour. If the layer specified does not exist on the drawing, it will be created. Press the Set Color button to open the standard CAD Select Color dialog box.
Show Illuminance Levels and Contours: Select this option to show illuminance levels and contours on the drawing. The illuminance levels and contours will be displayed in the calculation area after the calculation is finished.
Show Illuminance Levels Only: Select this option to show illuminance levels on the drawing. The illuminance levels will be displayed in the calculation area after the calculation is finished.
Show Contours Only: Select this option to show contours on the drawing. The contours will be displayed in the calculation area after the calculation is finished.
Decimal Places on Drawing: The number of decimal places to include in the illuminance levels on the drawing.
Decimal Places in Schedule: The number of decimal places to include in the illuminance levels on the schedule. If the Decimal Places on Drawing is less than the Decimal Places in Schedule, the smaller Decimal Places on Drawing will be used for the Maximum Illuminance and the Minimum Illuminance values in the schedule.
Distance Unit: The base unit for your drawing. See the Base Units and Photometrics Calculations article in the knowledge base for more information about determining the correct Distance Unit setting for your drawing.
Illuminance Unit: Whether the illuminance levels are displayed in foot-candles or lux.
Reflections: Whether the calculation includes reflections from walls and ceilings.
Edit Title, Column Labels, and Column Order: Press these buttons to modify the layout of the photometric schedule for general calculation areas and general calculation lines on the drawing. See the Edit General Photometric Area Schedule List section and Edit General Photometric Line Schedule List section for more information.
Zoom to Schedule After Insertion: Whether the display will be moved to the schedule associated with the calculation area.
After all of the information has been entered, press the OK button.
If there is only one calculation area on the drawing, the illuminance levels in the area will be calculated.
If there is more than one calculation area on the drawing, you will be prompted to specify which area to calculate.
Select calculation area to calculate / <Calculate all boundaries>:
Select calculation area: Select a point inside an area to calculate the illuminance levels in just that area.
Calculate all boundaries: Press ENTER to calculate the illuminance levels in all areas on the drawing.
The illuminance levels and contours in the area that is calculated will be updated. The values in the corresponding photometric calculation schedule will also be updated.
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