Edit Roadway Luminance Calculation Points

The Edit Roadway Luminance dialog looks just like the original ‘Add’ calculation dialog, with the addition of the specified grid coordinates and the opportunity to respecify the grid. You may change the label, description, point spacing, text size, R-table, calculation types, observer type, summary, labeling and display options, elevation coordinates or respecify the grid's location and extents.

If you have removed points from the grid prior to editing, they will be replaced if you recreate the grid (change point spacing, observer, or respecify the grid). Cosmetic changes, such as changing text color or text size, will not result in removed points being replaced.

1. From the Modify menu choose Calculations -Edit, or from the Calculations toolbar select .
2. Select the calculation grid by moving the pickbox cursor over it and clicking the left mouse button.
3. Make the desired changes. You have two options when respecifying the grid:

• In the Specified Grid section, you can change the current X, Y and/or Z coordinates.
• Click on the Respecify Grid button to specify the 3 input points of the grid in the graphics window. You will not be returned to the Edit Grid dialog after specification.

4. Click Ok.