12/16 roof plane

[Gene Davis]

Well I'll be darned. I draw a roof plane, open it for spec, and type into the box that says, "Pitch (in 12)", "12 in 16," and Chief returns, "12." The roof plane pitches to 12:12, or 45 degrees. I then respecify, I type, "12:16," and Chief returns, "28"" Things get steep.

I enter "12/16" and Chief returns "3/4"" Real shallow.

What setting am I missing?

[dshall]

Interesting, I will check it out in the am

[gteacher]

[QUOTE=
What setting am I missing?[/QUOTE]
Your not missing anything? When doing roof pitches as a ratio, Chief Will ONLY accept a ration of 12 -- fixed. Apparently if you type in a math ratio it will try to do the math but then it then becomes a ratio over 12. Perhaps a bug as this field should not be doing math operations.

Both 12/16 and 9/12 are 36.87 deg. 16/12 is not the same as 12/16.

To avoid confusion you can set roof pitch in degs by checking deg in Defaults -- plan.

[Joe Carrick]

Well I'll be darned. I draw a roof plane, open it for spec, and type into the box that says, "Pitch (in 12)", "12 in 16," and Chief returns, "12." The roof plane pitches to 12:12, or 45 degrees. I then respecify, I type, "12:16," and Chief returns, "28"" Things get steep.

I enter "12/16" and Chief returns "3/4"" Real shallow.

What setting am I missing?

You don't understand because you are not a programmer. Here is the programming method:

value of "12 in 16" is 12.00 (everything after the 12 is ignored)
value of "12:16" is 12+16 = 28.00 (something in the program changed the : to a +
value of 12/16 is 3/4

These things are only understood based on the programming language. Basically all of your examples are handled as a text string and in order to determine a numerical value of the text a subroutine is called. It's the subroutine that looks at each character and constructs a numerical value. Programatically that would look like:

nValue := val("12 in 16") = 12
nValue := val("12")+val("16") = 28 // note: programmer replaced the : with a +
nValue := val("12")/val("16") = 3/4

[dshall]

Well I'll be darned. I draw a roof plane, open it for spec, and type into the box that says, "Pitch (in 12)", "12 in 16," and Chief returns, "12." The roof plane pitches to 12:12, or 45 degrees. I then respecify, I type, "12:16," and Chief returns, "28"" Things get steep.

I enter "12/16" and Chief returns "3/4"" Real shallow.

What setting am I missing?

I don't get what the mystery is. I can get a 16:12 pitch.

http://chieftutor.com/dscotthall/GEN...12%20PITCH.wmv

[Tommy Blair]

I don't get what the mystery is. I can get a 16:12 pitch.

http://chieftutor.com/dscotthall/GEN...12%20PITCH.wmv

Scott, so far I'm with you. I don't understand.