Quote:
Originally Posted by gafftaper
Nice Spreadsheet Phil and welcome to the booth.
This is the modification I would like to see in a photometric spreadsheet. I want to be able to manually enter:
Instrument Height, Height above deck of target (for example 6' for head height), Horizontal distance to target, and the downward angle of the instrument. Both your sheet and Derek's automatically calculate Throw distance and beam angle. But I want to accurately know what's going on 6' above the deck. Simply changing the height in your sheets, changes the angle and results inaccurate information. So it would be great if all four of those factors were independent.
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You want to manually enter the downward angle of the instrument? You'd need a level and a protractor to physically measure that, and we're generally more concerned with the angle of elevation (at least McCandless was) so you'd need to take the complement, not that I'm complimenting you.
Maybe Phil understands your desires better than I do.
Check out
this for a real-time web-based tool. Does it do what you want?