chore: update minimum compiler version to 0.15.0

CeTZ 0.5.2 requires 3D coordinate vectors (x, y, z) for raw
coordinate tuples passed to coordinate.resolve(). Update internal
wire computations (dodge, guided) to use 3-element tuples, fix
.last() to .at(1) for y-component access on resolved coordinates,
and add a normalize-coord utility that automatically pads user-
provided 2D points (x, y) to (x, y, 0) so users do not need to
specify the z dimension.

README.md

@@ -3,7 +3,7 @@
 Circuiteria is a [Typst](https://typst.app) package for drawing block circuit diagrams using the [CeTZ](https://typst.app/universe/package/cetz) package.
 
 <p align="center">
-  <img src="./gallery/platypus.png" alt="A platypus / Perry the Platypus meme made with colored rounded rectangles">
+  <img src="./gallery/platypus.png" alt="Perry the platypus" alt="A platypus / Perry the Platypus meme made with colored rounded rectangles">
 </p>
 
 ## Examples

gallery/test_yrel.typ

@@ -1,46 +0,0 @@
-// Demonstrates the `(rel: <number>, to: <anchor>)` shorthand for the `y`
-// parameter (analogous to the existing shorthand for `x`).
-#import "/src/lib.typ": circuit, element, util, wire
-
-#set page(width: auto, height: auto, margin: .5cm)
-
-#circuit({
-  // Anchor block: absolute placement.
-  element.block(
-    x: 0, y: 0, w: 2, h: 1.5,
-    id: "A",
-    fill: util.colors.orange,
-    ports: (east: ((id: "out"),))
-  )
-
-  // X relative, Y absolute (existing feature).
-  element.block(
-    x: (rel: 1, to: "A.east"), y: 0, w: 2, h: 1.5,
-    id: "B",
-    fill: util.colors.yellow,
-    ports: (west: ((id: "in"),), east: ((id: "out"),))
-  )
-
-  // Both X and Y relative to another element's anchor (new feature).
-  element.block(
-    x: (rel: 1, to: "B.east"),
-    y: (rel: 2, to: "B.south-west"),
-    w: 2, h: 1.5,
-    id: "C",
-    fill: util.colors.green,
-    ports: (west: ((id: "in"),))
-  )
-
-  // Y relative only, X absolute.
-  element.block(
-    x: 0,
-    y: (rel: -2.5, to: "A.south-west"),
-    w: 2, h: 1.5,
-    id: "D",
-    fill: util.colors.blue,
-    ports: (east: ((id: "out"),))
-  )
-
-  wire.wire("wAB", ("A-port-out", "B-port-in"))
-  wire.wire("wBC", ("B-port-out", "C-port-in"), style: "zigzag")
-})

src/elements/element.typ

@@ -24,9 +24,7 @@
 ///   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 can take one of two forms:
-///     - `(rel: number, to: str)`: `rel` is the y offset and `to` the base anchor (analogous to `x`)
-///     - `(from: str, to: str)`: `from` is the base anchor and `to` is the id of the port to align with the anchor
+///   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
@@ -76,12 +74,13 @@
   if h == none { panic("Parameter h must be set") }
 
   if (type(x) == dictionary) {
-    x = util.resolve-rel-coord(ctx, x, 0)
+    let offset = x.rel
+    let to = x.to
+    let (ctx, to-pos) = coordinate.resolve(ctx, (rel: (offset, 0), to: to))
+    x = to-pos.at(0)
   }
   
-  if (type(y) == dictionary and "rel" in y) {
-    y = util.resolve-rel-coord(ctx, y, 1)
-  } else if (type(y) == dictionary) {
+  if (type(y) == dictionary) {
     let from = y.from
     let to = y.to
     let (to-side, i) = find-port(ports, to)

src/elements/logic/gate.typ

@@ -1,5 +1,4 @@
 #import "/src/cetz.typ": draw, coordinate
-#import "/src/util.typ"
 #import "../ports.typ": add-ports, add-port
 #import "../element.typ"
 
@@ -50,12 +49,13 @@
   if h == none { panic("Parameter h must be set") }
 
   if (type(x) == dictionary) {
-    x = util.resolve-rel-coord(ctx, x, 0)
+    let offset = x.rel
+    let to = x.to
+    let (ctx, to-pos) = coordinate.resolve(ctx, (rel: (offset, 0), to: to))
+    x = to-pos.at(0)
   }
   
-  if (type(y) == dictionary and "rel" in y) {
-    y = util.resolve-rel-coord(ctx, y, 1)
-  } else if (type(y) == dictionary) {
+  if (type(y) == dictionary) {
     let from = y.from
     let to = y.to
     

src/elements/logic/iec_gate.typ

@@ -1,5 +1,4 @@
 #import "/src/cetz.typ": draw, coordinate
-#import "/src/util.typ"
 #import "../ports.typ": add-ports, add-port
 #import "../element.typ"
 
@@ -61,12 +60,13 @@
   if h == none { panic("Parameter h must be set") }
 
   if (type(x) == dictionary) {
-    x = util.resolve-rel-coord(ctx, x, 0)
+    let offset = x.rel
+    let to = x.to
+    let (ctx, to-pos) = coordinate.resolve(ctx, (rel: (offset, 0), to: to))
+    x = to-pos.at(0)
   }
   
-  if (type(y) == dictionary and "rel" in y) {
-    y = util.resolve-rel-coord(ctx, y, 1)
-  } else if (type(y) == dictionary) {
+  if (type(y) == dictionary) {
     let from = y.from
     let to = y.to
     

src/util.typ

@@ -1,23 +1,3 @@
-#import "cetz.typ": coordinate
-
-/// Resolves a relative coordinate shorthand of the form `(rel: <number>, to: <anchor>)`
-/// to a single scalar along the requested axis.
-///
-/// Used to implement the shared `(rel:, to:)` shorthand accepted by the `x` and
-/// `y` parameters of `elmt`, `gate` and `iec-gate`.
-///
-/// - ctx (dictionary): The current CeTZ context
-/// - val (dictionary): A dictionary with fields `rel` (number) and `to` (anchor)
-/// - axis (int): `0` for x, `1` for y
-/// -> number
-#let resolve-rel-coord(ctx, val, axis) = {
-  let offset = val.rel
-  let to = val.to
-  let delta = if axis == 0 { (offset, 0) } else { (0, offset) }
-  let (_, to-pos) = coordinate.resolve(ctx, (rel: delta, to: to))
-  return to-pos.at(axis)
-}
-
 /// Predefined color palette
 /// #let w = 4
 /// #box(width: 100%, align(center)[