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41
doc/example.typ
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@ -1,41 +0,0 @@
#import "@preview/cetz:0.2.2": draw
#import "../src/circuit.typ": circuit
#import "../src/util.typ"
#let example-preamble = "import \"../src/lib.typ\": *;"
#let example-scope = (
draw: draw
)
#let example(src, show-src: true, vertical: false, fill: true) = {
src = src.text
let full-src = example-preamble + src
let body = eval(full-src, scope: example-scope)
let img = circuit(length: 2em, body)
block(width: 100%,
align(center,
box(
stroke: black + 1pt,
radius: .5em,
fill: if fill {util.colors.yellow.lighten(80%)} else {none},
if show-src {
let src-block = align(left, raw(src, lang: "typc"))
table(
columns: if vertical {1} else {2},
inset: 1em,
align: horizon + center,
stroke: none,
img,
if vertical {table.hline()} else {table.vline()}, src-block
)
} else {
table(
inset: 1em,
img
)
}
)
)
)
}

76
doc/examples.typ
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@ -1,76 +0,0 @@
#import "example.typ": example
#let alu = example(```
element.alu(x: 0, y: 0, w: 1, h: 2, id: "alu")
wire.stub("alu-port-in1", "west")
wire.stub("alu-port-in2", "west")
wire.stub("alu-port-out", "east")
```)
#let block = example(```
element.block(
x: 0, y: 0, w: 2, h: 2, id: "block",
ports: (
north: ((id: "clk", clock: true),),
west: ((id: "in1", name: "A"),
(id: "in2", name: "B")),
east: ((id: "out", name: "C"),)
)
)
wire.stub("block-port-clk", "north")
wire.stub("block-port-in1", "west")
wire.stub("block-port-in2", "west")
wire.stub("block-port-out", "east")
```)
#let extender = example(```
element.extender(
x: 0, y: 0, w: 3, h: 1,
id: "extender"
)
wire.stub("extender-port-in", "west")
wire.stub("extender-port-out", "east")
```)
#let multiplexer = example(```
element.multiplexer(
x: 0, y: 0, w: 1, h: 3,
id: "multiplexer",
entries: 3
)
wire.stub("multiplexer.north", "north")
wire.stub("multiplexer-port-out", "east")
element.multiplexer(
x: 0, y: -4, w: 1, h: 3,
id: "multiplexer2",
entries: ("A", "B", "C")
)
wire.stub("multiplexer2.south", "south")
wire.stub("multiplexer2-port-out", "east")
for i in range(3) {
wire.stub("multiplexer-port-in" + str(i), "west")
wire.stub("multiplexer2-port-in" + str(i), "west")
}
```)
#let wires = example(```
for i in range(3) {
draw.circle((i * 3, 0), radius: .1, name: "p" + str(i * 2))
draw.circle((i * 3 + 2, 1), radius: .1, name: "p" + str(i * 2 + 1))
draw.content((i * 3 + 1, -1), raw(wire.wire-styles.at(i)))
}
wire.wire("w1", ("p0", "p1"), style: "direct")
wire.wire("w2", ("p2", "p3"), style: "zigzag")
wire.wire("w3", ("p4", "p5"), style: "dodge",
dodge-y: -0.5, dodge-margins: (0.5, 0.5))
```, vertical: true)
#let stub = example(```
draw.circle((0, 0), radius: .1, name: "p")
wire.stub("p", "north", name: "north", length: 1)
wire.stub("p", "east", name: "east", vertical: true)
wire.stub("p", "south", name: "south", length: 15pt)
wire.stub("p", "west", name: "west", length: 3em)
```)

BIN
manual.pdf
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100
manual.typ
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@ -1,66 +1,9 @@
#import "@preview/tidy:0.3.0"
#import "@preview/cetz:0.2.2": draw, canvas
#import "src/lib.typ"
#import "doc/examples.typ"
#import "@preview/cetz:0.2.2": draw
#import "src/circuit.typ": circuit
#import "src/element.typ"
#import "src/util.typ"
#import "src/wire.typ"
#set heading(numbering: (..num) => if num.pos().len() < 4 {
numbering("1.1", ..num)
})
#{
outline(indent: true, depth: 3)
}
#set page(numbering: "1/1", header: align(right)[circuiteria #sym.dash.em v#lib.version])
#show link: set text(blue)
#show heading.where(level: 3): it => context {
let cnt = counter(heading)
let i = cnt.get().at(it.depth) - 1
let color = util.colors.values().at(i)
block(width: 100%)[
#grid(
columns: (auto, 1fr),
column-gutter: 1em,
align: horizon,
it,
{
place(horizon)[
#line(
start: (0%, 0%),
end: (100%, 0%),
stroke: color + 1pt
)
]
place(horizon)[
#circle(radius: 3pt, stroke: none, fill: color)
]
place(horizon+right)[
#circle(radius: 3pt, stroke: none, fill: color)
]
}
)
]
}
= Introduction
This package provides a way to make beautiful block circuit diagrams using the CeTZ package.
= Usage
Simply import #link("src/lib.typ") and call the `circuit` function:
#pad(left: 1em)[```typ
#import "src/lib.typ"
#lib.circuit({
import lib: *
...
})
```]
= Reference
#let circuit-docs = tidy.parse-module(
read("src/circuit.typ"),
name: "circuit",
@ -68,53 +11,18 @@ Simply import #link("src/lib.typ") and call the `circuit` function:
)
#tidy.show-module(circuit-docs)
#pagebreak()
#let util-docs = tidy.parse-module(
read("src/util.typ"),
name: "util",
require-all-parameters: true,
scope: (
util: util,
canvas: canvas,
draw: draw
)
scope: (util: util)
)
#tidy.show-module(util-docs)
#pagebreak()
#let wire-docs = tidy.parse-module(
read("src/wire.typ"),
name: "wire",
require-all-parameters: true,
scope: (
wire: wire,
circuit: circuit,
draw: draw,
examples: examples
)
scope: (wire: wire, circuit: circuit, draw: draw)
)
#tidy.show-module(wire-docs)
#pagebreak()
#let element-docs = tidy.parse-module(
read("src/elements/element.typ") + "\n" +
read("src/elements/alu.typ") + "\n" +
read("src/elements/block.typ") + "\n" +
read("src/elements/extender.typ") + "\n" +
read("src/elements/multiplexer.typ"),
name: "element",
require-all-parameters: true,
scope: (
element: element,
circuit: circuit,
draw: draw,
wire: wire,
tidy: tidy,
examples: examples
)
)
#tidy.show-module(element-docs, sort-functions: false)
#tidy.show-module(wire-docs)

2
src/circuit.typ
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@ -3,8 +3,6 @@
/// Draws a block circuit diagram
///
/// This function is also available at the package root
///
/// - body (none, array, element): A code block in which draw functions have been called
/// - length (length, ratio): Optional base unit
/// -> none

14
src/elements/alu.typ
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@ -37,19 +37,6 @@
return (f, tl, tr, br, bl)
}
/// Draws an ALU with two inputs
///
/// #examples.alu
/// - x (number, dictionary): see `elmt()`
/// - y (number, dictionary): see `elmt()`
/// - w (number): see `elmt()`
/// - h (number): see `elmt()`
/// - name (none, str): see `elmt()`
/// - name-anchor (str): see `elmt()`
/// - fill (none, color): see `elmt()`
/// - stroke (stroke): see `elmt()`
/// - id (str): see `elmt()`
/// - debug (dictionary): see `elmt()`
#let alu(
x: none,
y: none,
@ -61,6 +48,7 @@
stroke: black + 1pt,
id: "",
debug: (
grid: false,
ports: false
)
) = {

16
src/elements/block.typ
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@ -13,21 +13,6 @@
return (f, tl, tr, br, bl)
}
/// Draws a block element
///
/// #examples.block
/// - x (number, dictionary): see `elmt()`
/// - y (number, dictionary): see `elmt()`
/// - w (number): see `elmt()`
/// - h (number): see `elmt()`
/// - name (none, str): see `elmt()`
/// - name-anchor (str): see `elmt()`
/// - ports (dictionary): see `elmt()`
/// - ports-margins (dictionary): see `elmt()`
/// - fill (none, color): see `elmt()`
/// - stroke (stroke): see `elmt()`
/// - id (str): see `elmt()`
/// - debug (dictionary): see `elmt()`
#let block(
x: none,
y: none,
@ -41,6 +26,7 @@
stroke: black + 1pt,
id: "",
debug: (
grid: false,
ports: false
)
) = element.elmt(

28
src/elements/element.typ
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@ -16,33 +16,6 @@
return ({}, tl, tr, br, bl)
}
/// Draws an element
/// - draw-shape (function): Draw function
/// - x (number, dictionary): The x position (bottom-left corner).
///
/// If it is a dictionary, it should be in the format `(rel: number, to: str)`, where `rel` is the offset and `to` the base anchor
/// - y (number, dictionary): The y position (bottom-left corner).
///
/// If it is a dictionary, it should be in the format `(from: str, to: str)`, where `from` is the base anchor and `to` is the id of the port to align with the anchor
/// - w (number): Width of the element
/// - h (number): Height of the element
/// - name (none, str): Optional name of the block
/// - name-anchor (str): Anchor for the optional name
/// - ports (dictionary): Dictionary of ports. The keys are cardinal directions ("north", "east", "south" and/or "west"). The values are arrays of ports (dictionaries) with the following fields:
/// - `id` (`str`): (Required) Port id
/// - `name` (`str`): Optional name displayed *in* the block
/// - `clock` (`bool`): Whether it is a clock port (triangle symbol)
/// - `vertical` (`bool`): Whether the name should be drawn vertically
/// - ports-margins (dictionary): Dictionary of ports margins (used with automatic port placement). They keys are cardinal directions ("north", "east", "south", "west"). The values are tuples of (<start>, <end>) margins (numbers)
/// - fill (none, color): Fill color
/// - stroke (stroke): Border stroke
/// - id (str): The block id (for future reference)
/// - auto-ports (bool): Whether to use auto port placements or not. If false, `draw-shape` is responsible for adding the appropiate ports
/// - ports-y (array): Array of the ports y offsets (used with `auto-ports: false`)
/// - debug (dictionary): Dictionary of debug options.
///
/// Supported fields include:
/// - `ports`: if true, shows dots on all ports of the element
#let elmt(
draw-shape: default-draw-shape,
x: none,
@ -59,6 +32,7 @@
auto-ports: true,
ports-y: (),
debug: (
grid: false,
ports: false
)
) = draw.get-ctx(ctx => {

14
src/elements/extender.typ
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@ -25,19 +25,6 @@
return (f, tl, tr, br, bl)
}
/// Draws a bit extender
///
/// #examples.extender
/// - x (number, dictionary): see `elmt()`
/// - y (number, dictionary): see `elmt()`
/// - w (number): see `elmt()`
/// - h (number): see `elmt()`
/// - name (none, str): see `elmt()`
/// - name-anchor (str): see `elmt()`
/// - fill (none, color): see `elmt()`
/// - stroke (stroke): see `elmt()`
/// - id (str): see `elmt()`
/// - debug (dictionary): see `elmt()`
#let extender(
x: none,
y: none,
@ -49,6 +36,7 @@
stroke: black + 1pt,
id: "",
debug: (
grid: false,
ports: false
)
) = {

19
src/elements/multiplexer.typ
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@ -21,20 +21,6 @@
return (f, tl, tr, br, bl)
}
/// Draws a multiplexer
///
/// #examples.multiplexer
/// - x (number, dictionary): see `elmt()`
/// - y (number, dictionary): see `elmt()`
/// - w (number): see `elmt()`
/// - h (number): see `elmt()`
/// - name (none, str): see `elmt()`
/// - name-anchor (str): see `elmt()`
/// - entries (int, array): If it is an integer, it defines the number of input ports (automatically named with their binary index). If it is an array of string, it defines the name of each input.
/// - fill (none, color): see `elmt()`
/// - stroke (stroke): see `elmt()`
/// - id (str): see `elmt()`
/// - debug (dictionary): see `elmt()`
#let multiplexer(
x: none,
y: none,
@ -47,6 +33,7 @@
stroke: black + 1pt,
id: "",
debug: (
grid: false,
ports: false
)
) = {
@ -58,10 +45,6 @@
let bits = util.lpad(str(i, base: 2), nbits)
ports.push((id: "in" + str(i), name: bits))
}
} else {
for (i, port) in entries.enumerate() {
ports.push((id: "in" + str(i), name: port))
}
}
element.elmt(

17
src/util.typ
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@ -1,15 +1,4 @@
/// Predefined color palette
/// #let w = 5
/// #box(width: 100%, align(center)[
/// #canvas(length: 2em, {
/// for (i, color) in util.colors.pairs().enumerate() {
/// let x = calc.rem(i, w) * 2
/// let y = calc.floor(i / w) * 2
/// draw.rect((x, -y), (x + 1, -y - 1), fill: color.last(), stroke: none)
/// draw.content((x + 0.5, -y - 1.25), color.first())
/// }
/// })
/// ])
#let colors = (
orange: rgb(245, 180, 147),
yellow: rgb(250, 225, 127),
@ -22,11 +11,11 @@
///
/// #example(`#util.lpad("0100", 8)`, mode: "markup")
///
/// - string (str): The string to pad
/// - s (str): The string to pad
/// - len (int): The target length
/// -> str
#let lpad(string, len) = {
let res = "0" * len + string
#let lpad(s, len) = {
let res = "0" * len + s
return res.slice(-len)
}

27
src/wire.typ
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@ -2,7 +2,22 @@
#import "util.typ": opposite-anchor
/// List of valid wire styles
/// #examples.wires
/// #box(width: 100%, align(center)[
/// #circuit({
/// draw.circle((0, 0), radius: .1, name: "p1")
/// draw.circle((2, 1), radius: .1, name: "p2")
/// draw.circle((3, 0), radius: .1, name: "p3")
/// draw.circle((5, 1), radius: .1, name: "p4")
/// draw.circle((6, 0), radius: .1, name: "p5")
/// draw.circle((8, 1), radius: .1, name: "p6")
/// wire.wire("w1", ("p1", "p2"), style: "direct")
/// wire.wire("w2", ("p3", "p4"), style: "zigzag")
/// wire.wire("w3", ("p5", "p6"), style: "dodge", dodge-y: -0.5, dodge-margins: (0.5, 0.5))
/// draw.content((1, -1), [`direct`])
/// draw.content((4, -1), [`zigzag`])
/// draw.content((7, -1), [`dodge`])
/// })
/// ])
#let wire-styles = ("direct", "zigzag", "dodge")
#let signal-width = 1pt
#let bus-width = 1.5pt
@ -103,7 +118,7 @@
/// - style (str): The wire's style (see `wire-styles` for possible values)
/// - reverse (bool): If true, the start and end points will be swapped (useful in cases where the start point depends on the end point, for example with perpendiculars)
/// - zigzag-ratio (ratio): Position of the zigzag vertical relative to the horizontal span (only with style "zigzag")
/// - dodge-y (number): Y position to dodge the wire to (only with style "dodge")
/// - dodge-y (int, float, length, ratio): Y position to dodge the wire to (only with style "dodge")
/// - dodge-sides (array): The start and end sides (going out of the connected element) of the wire (only with style "dodge")
/// - dodge-margins (array): The start and end margins (i.e. space before dodging) of the wire (only with style "dodge")
#let wire(
@ -218,7 +233,13 @@
/// Draws a wire stub (useful for unlinked ports)
///
/// #examples.stub
/// #box(width: 100%, align(center)[
/// #circuit({
/// draw.circle((0, 0), radius: .1, name: "p")
/// wire.stub("p", "east", name: "port")
/// })
/// ])
///
/// - port-id (str): The port anchor
/// - side (str): The side on which the port is (one of "north", "east", "south", "west")
/// - name (none, str): Optional name displayed at the end of the stub