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ElumTools is designed to utilize Revit's Room and Space bounding elements for easy interior lighting calculations.
Before using the Calculate Room or Space commands, luminaire instances should exist in the target Rooms or Spaces, or Daylighting Mode enabled and set to compute daylight only. You can also use ElumTools Layout Assistant or place luminaire instances manually.
When selecting the Calculate Room or Space commands, ElumTools will allow you to select a single Room or Space and proceed to compute the results. Multiple Rooms or Spaces can be computed by selecting the Calculate Multiple version of the command. You may also select as many Rooms or Spaces as you desire in Revit directly, then simply click the main Calculate button on the toolbar.
The Calculate Room and Calculate Space commands are essentially identical, with the exception that the Calculate Room command only finds Revit Rooms when selecting areas to compute and the Calculate Space command finds only Spaces.
ElumTools allows the selection of multiple Rooms or Spaces enabling a series of offices or areas to be completed in a single execution of the command.
To select multiple Rooms or Spaces, select the Multiple option of the Calculate command and click on each Room or Space designation you wish to include in the calculation. You can compute both Rooms and Spaces using this command so be careful to select only what you want. You may want to use Revit's Visibility Graphics to enable only what you are working with if both exist.
When your selection is complete, click the Finish button on the ElumTools toolbar (see capture). ElumTools will prompt for your choice of calculation method. You may elect to "Isolate" the calculation of each Room or Space from the others or "Combine" them all into one computation.
Isolate- When the Rooms or Spaces are isolated from one another each Room or Space will be computed individually and only the luminaires enclosed within the boundary will be considered. In this case, ElumTools can assign each calculation to a separate thread to take advantage of multi-core and threaded computing operations. Each Room or Space will appear in a separate visualization window.
Combine- When multiple Rooms or Spaces are combined, all Rooms or Spaces are considered to be one environment and are processed in a single calculation. Luminaires in one Room or Space may contribute to another if there are no structural elements obstructing the light.
To fully understand this process, consider the following examples:
Imagine a hallway leading into a larger space. These may be designated as two different Rooms or Spaces in Revit. However, an accurate lighting calculation must consider the contribution of luminaires in each space to the other. In this case, you would elect to "Combine" the two Rooms or Spaces into one calculation.
Now imagine a series of offices or hospital rooms. These Rooms or Spaces are essentially separate calculations with no need to really consider light escaping from doorways. In this case, "Isolate" the calculations from one another for faster processing.
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