Layout help

[Kevin.hndz]

Please help with laying out when dimensions aren't present only info is the 2' to the center of lights everything else is just equal space throughout. How do I get these measurements

 

[busman]

In algebra terms, if L is the length of the room and N is the number of fixtures and D is the distance from wall to first fixture, then it is:

Spacing = (L - (2 * D)) / (N - 1)

In an example if the L is 24', N is 3 and D is 2', then (24 - 4) / 2 = 10'

 

[infinity]

There is one dimension missing. For the spacing going north and south you measure the length of the wall to the left or right, come in 2' from each end and then using the remaining measurement to go equal/equal. So for example if the wall is 20' then 20'-4'=16' 16'/2 = 8' apart.

The east to west dimension off the wall is not given so you cannot determine the spacing.

 

[Kevin.hndz]

In algebra terms, if L is the length of the room and N is the number of fixtures and D is the distance from wall to first fixture, then it is:

Spacing = (L - (2 * D)) / (N - 1)

In an example if the L is 24', N is 3 and D is 2', then (24 - 4) / 2 = 10'

What if I don't have D because the 2 feet if you notice is not the distance from the wall to the first light but center of the light taken from the outside of the wall

 

[Kevin.hndz]

That's what

There is one dimension missing. For the spacing going north and south you measure the length of the wall to the left or right, come in 2' from each end and then using the remaining measurement to go equal/equal. So for example if the wall is 20' then 20'-4'=16' 16'/2 = 8' apart.

The east to west dimension off the wall is not given so you cannot determine the spacing.

View attachment 2574372

That's what I'm saying because North and South there is no wall. So if you look at the drawing off to the left, the measurement is from the outside of the wall to the center of the lights so in other words I can do the center of the two outside lights no problem because I know it's 2 ft from the wall. I need help with getting the spacings going east to west

 

[infinity]

I need help with getting the spacings going east to west

Given the information on the drawing you cannot determine the east/west dimensions. You could scale the drawing to give you the east/west starting dimension.

 

[Kevin.hndz]

Given the information on the drawing you cannot determine the east/west dimensions. You could scale the drawing to give you the east/west starting dimension.

That's what I was thinking because the rest just says eq throughout the spacings

 

[ron]

If the drawing was to scale, and you were to use Bluebeam or similar, where you can calibrate/scale from the 2' dimension

 

[infinity]

That's what I was thinking because the rest just says eq throughout the spacings

Designers leave dimensions off of a drawing all of the time so it's not uncommon. You could also measure the actual north/south wall length in the field to make your own scale if the drawing is not drawn to scale.

 

[Kevin.hndz]

T

If the drawing was to scale, and you were to use Bluebeam or similar, where you can calibrate/scale from the 2' dimension
View attachment 2574373

This still doesn't not give me the measurement off the wall to the first light going east to west

 

[infinity]

T
This still doesn't not give me the measurement off the wall to the first light going east to west

If you use Ron's dimensions you do not need a dimension off of the wall. Start with the light in the center between the two walls and then apply Ron's dimensions.

 

[rambojoe]

That's what I was thinking because the rest just says eq throughout

Beat me to it... you can also just do the math on floor.. no need for calculus
Floor helps since it looks like you are hanging from the deck. Bosch lasers rule! Id ignore the exit on this print...or page rather..

 

[wwhitney]

There is one dimension missing. For the spacing going north and south you measure the length of the wall to the left or right, come in 2' from each end and then using the remaining measurement to go equal/equal. So for example if the wall is 20' then 20'-4'=16' 16'/2 = 8' apart.

The east to west dimension off the wall is not given so you cannot determine the spacing.

I take "EQ" to be the same for both E-W and N-S, so in your example the E-W spacing is also 8' apart. Still unspecified whether the resulting square grid should be centered between the E and W walls, but doing so is likely a safe bet.

Cheers, Wayne

 

[Kevin.hndz]

I take "EQ" to be the same for both E-W and N-S, so in your example the E-W spacing is also 8' apart. Still unspecified whether the resulting square grid should be centered between the E and W walls, but doing so is likely a safe bet.

Cheers, Wayne

This still doesn't give me the space off the wall

 

[wwhitney]

This still doesn't give me the space off the wall

Sure it does. If the room is say 22' E-W by 20' N-S, then infinity already explained the light spacing would have to be 8' N-S to comply with the drawing. If you take the spacing to also be 8' E-W, and you want the westmost column the same distance off the west wall as the eastmost column is off the east wall, that distance is 3'. Because 3' + 8' + 8' + 3' = 22'.

Cheers, Wayne

 

[infinity]

I take "EQ" to be the same for both E-W and N-S,

I wouldn't. The equal/equal dimensions are unique to each direction. Having said that they could be the same if that is what the designer wants but no one should be making an assumption.

This still doesn't give me the space off the wall

Your question has already been answered regarding the "off the wall" dimension.