Resources Numerical accuracy
Calculations
Every calculation under our calculation policies: what it works out, its formula and the precision it runs at. Open one to see its code as it is in the released app.
Calculations
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Carcass depth behind a face frame
The depth the carcass is built with when a face frame takes part of the cabinet's depth.
d = max(1, d − frame thickness)
CabinetCraft parts, fronts and face frames addons/cabinetcraft/lib/build.js64-bit- CadCraft
- BimCraft
- ModelCraft
- PartCraft
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Face-frame openings and overlay fronts
The rails, the openings between them and the doors or drawer fronts that cover each opening.
opening h = (box h − (2 + mids) × rail) ÷ (mids + 1); front h = opening h + lap below + lap above; pair door w = (opening w + 2 × overlay − gap) ÷ 2
CabinetCraft parts, fronts and face frames addons/cabinetcraft/lib/build.js64-bit- CadCraft
- BimCraft
- ModelCraft
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Door and blind panel of a blind corner
The door over the open part of a blind corner cabinet and the panel over the blind part.
door w = (w − blind) − reveal; panel w = blind − reveal; h = box h − reveal
CabinetCraft parts, fronts and face frames addons/cabinetcraft/lib/build.js64-bit- CadCraft
- BimCraft
- ModelCraft
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Part size stored in the cut list
Adds one part with its length, width, thickness and material.
CabinetCraft parts, fronts and face frames addons/cabinetcraft/lib/build.js64-bit- CadCraft
- BimCraft
- ModelCraft
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Frame rail length and counts
The length of the frame's rails and how many rails and mid rails a cabinet needs.
rail length = w − 2 × stile − blind
CabinetCraft parts, fronts and face frames addons/cabinetcraft/lib/build.js64-bit- CadCraft
- BimCraft
- ModelCraft
- PartCraft
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Doors and drawer fronts counted by size
Groups equal fronts into one cut-list line with a quantity.
CabinetCraft parts, fronts and face frames addons/cabinetcraft/lib/build.jsExact- CadCraft
- BimCraft
- ModelCraft
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Drawer boxes of a face-frame cabinet
The sides, ends and bottom of each drawer box behind a face frame.
box h = min(front h − clearance, opening h − 20 mm); end = bw − 2t; bottom = (bw − 2t + 2g) × (slide − 2t + 2g); bw = opening w − 2 × slide gap
CabinetCraft parts, fronts and face frames addons/cabinetcraft/lib/build.js64-bit- CadCraft
- BimCraft
- ModelCraft
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Dowels of a corner cabinet
The number of dowels a corner cabinet's drilling needs.
dowels = dowel holes ÷ 2
CabinetCraft parts, fronts and face frames addons/cabinetcraft/lib/build.js64-bit- CadCraft
- BimCraft
- ModelCraft
- PartCraft
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Curved cabinet outline in the cell's own axes
The outline points of a made-to-order curved cabinet, measured from the cell's origin along its two axes.
(x′, y′) = ((q − o) · u, (q − o) · n)
CabinetCraft parts, fronts and face frames addons/cabinetcraft/lib/build.js64-bit- CadCraft
- BimCraft
- ModelCraft
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Closing panel of an angled corner
The height of the panel that closes a corner which is not a right angle.
height = cabinet h − plinth height
CabinetCraft parts, fronts and face frames addons/cabinetcraft/lib/build.js64-bit- CadCraft
- BimCraft
- ModelCraft
- PartCraft
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Picked room corner
A corner of the room outline picked on the plan, snapped to the grid.
p = round(x ÷ g) × g; g = 50 (mm job) or 2 (inch job)
CabinetCraft room picking and dry-run units addons/cabinetcraft/main.js64-bit- CadCraft
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Direction of the picked outline
Whether the corners were picked clockwise, which decides the sign of each arc's sweep.
Σ (xᵢ × yᵢ₊₁ − xᵢ₊₁ × yᵢ) < 0 means clockwise
CabinetCraft room picking and dry-run units addons/cabinetcraft/main.js64-bit- CadCraft
- BimCraft
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Sheet size in the program's units
The sheet size, thickness and rapid rate the dry run checks a G-code program against.
k = (1 ÷ 25.4 or 1) × (25.4 or 1); sheet = job sheet × k; rapid (inch program) = rapid ÷ 25.4
CabinetCraft room picking and dry-run units addons/cabinetcraft/main.js64-bit- CadCraft
- BimCraft
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Numbers on labels and the maker review
Writes a number with at most 2 decimals.
text = round(v × 100) ÷ 100
CabinetCraft room picking and dry-run units addons/cabinetcraft/main.js64-bit- CadCraft
- BimCraft
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Job converted to the other unit
Every size in the job converted from millimeters to inches or back when the job's unit is changed.
to inches: round(v × (1 ÷ 25.4) × 16) ÷ 16; to millimeters: round(v × 25.4)
Cabinet job edits that change sizes addons/cabinetcraft/lib/edit.js64-bit- CadCraft
- BimCraft
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Gap at a door or window
The width of the gap put in a run's floor row so that the cabinets after it clear an opening.
width = ⌈(at + w + clear − start) × 10⌉ ÷ 10
Cabinet job edits that change sizes addons/cabinetcraft/lib/edit.js64-bit- CadCraft
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Filler for a leftover
Adds a filler as wide as the space a row leaves on its wall.
filler width = rest, when 0.5 < rest ≤ 75 mm
Cabinet job edits that change sizes addons/cabinetcraft/lib/edit.js64-bit- CadCraft
- BimCraft
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Notch of a new L or U room
The first size of the notch when a rectangular room is made L or U shaped.
notch width = round(W ÷ 3); notch depth = round(D ÷ 2)
Cabinet job edits that change sizes addons/cabinetcraft/lib/edit.js64-bit- CadCraft
- BimCraft
- ModelCraft
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Drilling distances in inches
The 32 mm system's drilling and hardware distances for the inch rule set.
value = round(mm × (1 ÷ 25.4) × 10⁴) ÷ 10⁴
Cabinet parts from a box and construction rules addons/cabinetcraft/lib/model.js64-bit- CadCraft
- BimCraft
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Box sizes
The box height without the plinth, the inside width and the depth the back takes.
boxH = h − kick; iw = w − 2t; backDepth = backSetback + backT
Cabinet parts from a box and construction rules addons/cabinetcraft/lib/model.js64-bit- CadCraft
- BimCraft
- ModelCraft
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Door and drawer front sizes
The size and position of every door and drawer front in the cabinet's front view.
one door: (w − reveal) × (boxH − reveal); a pair: each (w − 2·reveal) ÷ 2 wide; n drawer fronts: each (boxH − n·reveal) ÷ n high
Cabinet parts from a box and construction rules addons/cabinetcraft/lib/model.js64-bit- CadCraft
- BimCraft
- ModelCraft
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Longest drawer slide that fits
Picks the drawer slide length from the rule's list for the cabinet's inside depth.
room = panel depth − backDepth − drawerBackClear; the longest listed L with L ≤ room + 1e-9
Cabinet parts from a box and construction rules addons/cabinetcraft/lib/model.js64-bit- CadCraft
- BimCraft
- ModelCraft
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Part list of one cabinet
Every part of a cabinet with its length, width, thickness, material, quantity and banded edges.
back in grooves: (iw + 2·groove) × (boxH − n·t + n·groove); shelf: (iw − 2·shelfClear) × (inside depth − shelfFront); drawer end: iw − 2·slideGap − 2·drawerT
Cabinet parts from a box and construction rules addons/cabinetcraft/lib/model.js64-bit- CadCraft
- BimCraft
- ModelCraft
- PartCraft
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Size checks on a cabinet
Reports a cabinet that is too narrow, too low or too shallow for its parts, or whose drawers do not fit.
iw ≤ 0; boxH ≤ 2t; inside depth ≤ shelfFront; Σ fronts + n·reveal > boxH + 1e-9
Cabinet parts from a box and construction rules addons/cabinetcraft/lib/model.js64-bit- CadCraft
- BimCraft
- ModelCraft
- PartCraft
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Linear stock to buy
The number of pieces and the total length of each hardwood section in the job.
length = Σ qty × length; pieces = Σ qty
Cabinet job totals: linear stock and sheet count addons/cabinetcraft/lib/sheets.js64-bit- CadCraft
- BimCraft
- ModelCraft
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Sheets used by a nested job
The total number of sheets over all materials, with each material's own count and efficiency.
sheets = Σ sheets per material
Cabinet job totals: linear stock and sheet count addons/cabinetcraft/lib/sheets.jsExact- CadCraft
- BimCraft
- ModelCraft
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Label position on the sheet
Where each label is printed on the page, so that it lands on the die-cut label.
x = left + col × (label width + gap x); y = top + row × (label height + gap y)
Part labels on label sheets addons/cabinetcraft/lib/cutlist/labels.js64-bit- CadCraft
- BimCraft
- ModelCraft
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Bar code module width
The width of the narrowest bar of a label's Code 128 bar code, fitted to the space beside the id text.
module = min(0.33 mm, room ÷ (code width + 20))
Part labels on label sheets addons/cabinetcraft/lib/cutlist/labels.js64-bit- CadCraft
- BimCraft
- ModelCraft
- PartCraft
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Pieces from quantities
One entry per piece to cut, from rows with a quantity.
Cutting profile pieces from stock bars addons/windows/lib/cutlist/bars.js64-bit- CadCraft
- BimCraft
- ModelCraft
- PartCraft
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Length a bar takes
The length of bar used by a set of pieces, with the saw kerf and the saving when mitred ends share a cut.
used = Σ (length + kerf) − depth × min(⌊mitred ends ÷ 2⌋, mitred pieces − 1)
Cutting profile pieces from stock bars addons/windows/lib/cutlist/bars.js64-bit- CadCraft
- BimCraft
- ModelCraft
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Fewest bars for one stock length
Which pieces go on which bar, and whether the count is proven to be the fewest.
bound = ⌈Σ (length + kerf) ÷ usable − 1e-9⌉; usable = stock − trim at both ends
Cutting profile pieces from stock bars addons/windows/lib/cutlist/bars.js64-bit- CadCraft
- BimCraft
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Bars, cut positions, offcuts and waste
The list of bars with each piece's start position, the offcut left on each bar and the totals.
pos accumulates length + kerf; offcut = stock − trims − used; waste % = round((1 − piece length ÷ stock length) × 10⁴) ÷ 100
Cutting profile pieces from stock bars addons/windows/lib/cutlist/bars.js64-bit- CadCraft
- BimCraft
- ModelCraft
- PartCraft
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Totals over all profiles
The number of bars, the piece length, the stock length and the waste over every profile and color.
waste = Σ stock length − Σ piece length
Cutting profile pieces from stock bars addons/windows/lib/cutlist/bars.js64-bit- CadCraft
- BimCraft
- ModelCraft
- PartCraft
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Raw double, read
A 64-bit value read from eight bytes of the bit stream.
Numbers in a DWG file, read and written bit for bit dwg/bits-read.js64-bit- CadCraft
- BimCraft
- ModelCraft
- TakeoffCraft
- CivilCraft
- DetailCraft
- PartCraft
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Bit double, read
A value stored as a two-bit code: a full 64-bit value, exactly 1.0 or exactly 0.0.
Numbers in a DWG file, read and written bit for bit dwg/bits-read.js64-bit- CadCraft
- BimCraft
- ModelCraft
- TakeoffCraft
- CivilCraft
- DetailCraft
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Double with default, read
A value stored as the bytes in which it differs from a default value.
Numbers in a DWG file, read and written bit for bit dwg/bits-read.js64-bit- CadCraft
- BimCraft
- ModelCraft
- TakeoffCraft
- CivilCraft
- DetailCraft
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64-bit whole number, read
An unsigned 64-bit whole number from two 32-bit halves.
value = high × 2³² + low
Numbers in a DWG file, read and written bit for bit dwg/bits-read.js64-bit- CadCraft
- BimCraft
- ModelCraft
- TakeoffCraft
- CivilCraft
- DetailCraft
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Bit long long, read
A whole number of up to seven bytes, the count given by three bits.
value = Σ byteᵢ × 256ⁱ
Numbers in a DWG file, read and written bit for bit dwg/bits-read.js64-bit- CadCraft
- BimCraft
- ModelCraft
- TakeoffCraft
- CivilCraft
- DetailCraft
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Handle reference, read
An object handle, absolute or as an offset from another handle.
value = Σ byte × 256ᵏ; codes 6, 8, A, C: ref + 1, ref − 1, ref + value, ref − value
Numbers in a DWG file, read and written bit for bit dwg/bits-read.js64-bit- CadCraft
- BimCraft
- ModelCraft
- TakeoffCraft
- CivilCraft
- DetailCraft
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Modular char, read
A signed whole number stored seven bits per byte.
value = Σ (byte & 0x7F) × 2^(7i); the last byte carries 6 bits and the sign
Numbers in a DWG file, read and written bit for bit dwg/bits-read.js64-bit- CadCraft
- BimCraft
- ModelCraft
- TakeoffCraft
- CivilCraft
- DetailCraft
- PartCraft
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Raw double, written
A 64-bit value written as its eight bytes.
Numbers in a DWG file, read and written bit for bit dwg/bits-write.js64-bit- CadCraft
- BimCraft
- ModelCraft
- TakeoffCraft
- CivilCraft
- DetailCraft
- PartCraft
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Bit double, written
A value written as a two-bit code for exactly 0.0 or 1.0, or as a full 64-bit value.
Numbers in a DWG file, read and written bit for bit dwg/bits-write.js64-bit- CadCraft
- BimCraft
- ModelCraft
- TakeoffCraft
- CivilCraft
- DetailCraft
- PartCraft
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Double with default, written
A value written as a two-bit code when it equals its default, or in full.
Numbers in a DWG file, read and written bit for bit dwg/bits-write.js64-bit- CadCraft
- BimCraft
- ModelCraft
- TakeoffCraft
- CivilCraft
- DetailCraft
- PartCraft
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Thickness, written
A thickness written as one bit when it is zero, or as a bit double.
Numbers in a DWG file, read and written bit for bit dwg/bits-write.js64-bit- CadCraft
- BimCraft
- ModelCraft
- TakeoffCraft
- CivilCraft
- DetailCraft
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Bit long, written
A 32-bit whole number in its short or full form.
Numbers in a DWG file, read and written bit for bit dwg/bits-write.jsExact- CadCraft
- BimCraft
- ModelCraft
- TakeoffCraft
- CivilCraft
- DetailCraft
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Bit short, written
A 16-bit whole number in its short or full form.
Numbers in a DWG file, read and written bit for bit dwg/bits-write.jsExact- CadCraft
- BimCraft
- ModelCraft
- TakeoffCraft
- CivilCraft
- DetailCraft
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Bit long long, written
A 64-bit whole number as a three-bit byte count and its bytes.
Numbers in a DWG file, read and written bit for bit dwg/bits-write.jsExact- CadCraft
- BimCraft
- ModelCraft
- TakeoffCraft
- CivilCraft
- DetailCraft
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Point, written
The three coordinates of a point as bit doubles.
Numbers in a DWG file, read and written bit for bit dwg/bits-write.js64-bit- CadCraft
- BimCraft
- ModelCraft
- TakeoffCraft
- CivilCraft
- DetailCraft
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Handle bytes, written
A handle as its bytes, most significant first.
byte = v mod 256; v = ⌊v ÷ 256⌋
Numbers in a DWG file, read and written bit for bit dwg/bits-write.jsExact- CadCraft
- BimCraft
- ModelCraft
- TakeoffCraft
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Rational tag value
A TIFF RATIONAL (two 32-bit integers) as one number.
value = numerator ÷ denominator
TIFF scan resolution raster/tiff.js64-bit- CadCraft
- BimCraft
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A calculation is added only after its source was read. Each statement can be checked in the code shown on its policy's page; the app repositories are public. When a release changes a calculation, its page says so until it has been read again.