Calculation surfaces inherit certain parameters from the zone in which they are located, such as the maintenance factor and reflectance values, but allow you to adjust the following specific options in their edit panel:

• Reference
  Reference for the design area.
• Type of design mesh
  This allows you to configure the design mesh type for the surface, offering flexibility in the distribution of illuminance measurement points. In this way, you can adjust the accuracy of the lighting designs to suit the project’s requirements, optimising the balance between performance and detail in the lighting assessment. The available options are as follows:
  • Automatic
    The program automatically determines the number of points in the design mesh based on the characteristics of the space. This is the default option.
  • Quantity
    Manually defines the number of points on the X and Y axes, letting the program distribute them evenly across the calculation area.
  • Distance
    Specifies the exact spacing between points on the X and Y axes, providing more precise control over the mesh density.
• "Description" tab
  • Height of the workplane (normal lighting)
    Defines the height of the surface’s workplane, used for illuminance and glare index calculations for normal artificial lighting and daylight.
    • For illuminance
    • For glare
• "Checks" tab
  Selects the checks to be applied to the design area. Checks can be created or edited using the "Zone-specific requirements" option in the "General parameters" section of the "Project" group on the main toolbar.