Insert Sloped Calculation Line
The Insert Sloped Calculation Line command is used to insert a sloped line on the drawing where illuminance levels are to be calculated.
To insert a sloped calculation line on the drawing, go to
Ribbon: DM Photometrics→Calculation Areas→ Insert Sloped Line
Pulldown Menu: DM Photometrics→Insert Sloped Calculation Line
Insert Sloped Calculation Line Dialog Box

☐ Override Schedule Title Whether the schedule title for the current calculation area is to be changed from the default calculation schedule title.

Schedule Title: The title to be used in the calculation schedule for the calculation area. This field is enabled if the ☐ Override Schedule Title box is checked.

Illuminance Level Spacing: The distance between points where illuminance levels will be calculated.

Top Elevation: The elevation at the top of the slope.

Bottom Elevation: The elevation at the bottom of the slope.

☐ Calculate Vertical Illuminance Levels At Area Boundary Whether vertical illuminance levels are to be calculated along the line.

Vertical Calculation Spacing: The distance between points where vertical illuminance levels will be calculated.

Vertical Display Spacing: The distance between vertical calculation points as they are displayed on the drawing.

Ending Vertical Calculation Elevation Above Slope: The maximum vertical distance at which vertical illuminance levels will be calculated along each point on the slope. For example, a line with a Top Elevation of 30 and an Ending Vertical Calculation Elevation Above Slope of 10 will calculate illuminance levels from 30' to 40' at the top of the slope.
Inserting the Sloped Calculation Line on the Drawing
To insert the calculation line on the drawing, press the button. The settings you specified in the dialog box will be used for the line.
You will be prompted to specify a point that is at the top elevation.
Specify top of calculation line:
You will then be prompted to specify a point that is at the bottom elevation.
Specify bottom of calculation line:
The calculation line will be inserted on the drawing. The line will be thicker at the higher elevation to help you visualize how it slopes.
If you checked ☐ Calculate Vertical Illuminance Levels, you will then be prompted to specify on which side of the line the vertical illuminance levels will be displayed.
Specify side to place vertical illuminance values:
You will then be prompted to insert the calculation schedule, group the calculation line with an area, or press ENTER to finish the command.
Specify insertion point for calculation schedule or point inside boundary to group with:

Insert the calculation schedule
To insert the calculation schedule, select a point on the drawing that is not inside of a calculation area. The calculation schedule will be inserted at the point specified. 
Group with an area or group
To group the line with an area or group, select a point on the drawing that is inside of a calculation area. They will be grouped. If the selected calculation area already has a calculation schedule on the drawing, that calculation schedule will be used for the group. If it does not have a calculation schedule, no calculation schedule will be used for the group. 
Finish the command
Press ENTER to finish the command without inserting a calculation schedule or grouping the calculation line with an area or group. No calculation schedule will be inserted and the calculation line will be in its own separate group.
Schedule title justification: Sets the justification for the schedule title.
Schedule column label justification: Sets the justification for column headings.
There are several options that set the default values for this dialog box. See the Calculation Areas Options section for more information.