ROLLLENGTH
The length of roll a floor's drops need: every drop's length and its trims.
Syntax
ROLLLENGTH(floor, width, angle, origin, trim)
| Argument | Meaning |
|---|---|
| floor | The floor: an element, or a list of them ({@1,@4}: a room and its doorway), closed outlines joined into one. |
| width | The roll's width. |
| angle | The way the drops run (the pile's direction), in degrees anticlockwise from the X axis. |
| origin | A position the first seam runs through. |
| trim | The trim allowance at each end of a length. |
Result
A number.
Examples
In the example drawing:
| Expression | Gives |
|---|---|
ROLLLENGTH(@6,30,0,[30,-10],0) |
74.641 |
ROLLLENGTH(@6,30,0,[30,-10],5) |
94.641 |
Notes
The waste is the roll used less the floor: ROLLLENGTH(@1,4000,0,P16,75)*4000-FLOORAREA(@1).