@huukhanhnguyen/geometry / namespaces/Curve2d

namespaces/Curve2d#

addPoints#

const addPoints: (shape_json, points) => string = wasm.path2d_add_points

addShape's point-array overload: auto-closes when the first and last points coincide, and joins onto an existing open chain when an endpoint matches.

Parameters#

shape_json#

string

points#

Float64Array

Returns#

string

addShape#

const addShape: (shape_json, contour_json) => string = wasm.path2d_add_shape

Append one contour (ContourJson wire) to a Path2d.

Parameters#

shape_json#

string

contour_json#

string

Returns#

string

area#

const area: (shape_json, tolerance) => number = wasm.path2d_area

Parameters#

shape_json#

string

tolerance#

number

Returns#

number

boolean#

const boolean: (subject_json, clip_json, operation, tolerance) => string = wasm.path2d_boolean

Parameters#

subject_json#

string

clip_json#

string

operation#

string

tolerance#

number

Returns#

string

boundingBox#

const boundingBox: (shape_json) => Float64Array = wasm.path2d_bounding_box

[minX, minY, maxX, maxY].

Parameters#

shape_json#

string

Returns#

Float64Array

chamfer#

const chamfer: (shape_json, distance1, distance2) => string = wasm.path2d_chamfer

Parameters#

shape_json#

string

distance1#

number

distance2#

number

Returns#

string

circle#

const circle: (cx, cy, radius, use_transformation, transformation) => string = wasm.path2d_circle

Parameters#

cx#

number

cy#

number

radius#

number

use_transformation#

boolean

transformation#

Float64Array

Returns#

string

cleanup#

const cleanup: (shape_json, tolerance) => string = wasm.path2d_cleanup

Parameters#

shape_json#

string

tolerance#

number

Returns#

string

containsPoint#

const containsPoint: (shape_json, x, y, tolerance) => boolean = wasm.path2d_contains_point

Parameters#

shape_json#

string

x#

number

y#

number

tolerance#

number

Returns#

boolean

ellipse#

const ellipse: (cx, cy, x_axis_x, x_axis_y, y_axis_x, y_axis_y, use_transformation, transformation) => string = wasm.path2d_ellipse

Parameters#

cx#

number

cy#

number

x_axis_x#

number

x_axis_y#

number

y_axis_x#

number

y_axis_y#

number

use_transformation#

boolean

transformation#

Float64Array

Returns#

string

fillet#

const fillet: (shape_json, radius) => string = wasm.path2d_fillet

Parameters#

shape_json#

string

radius#

number

Returns#

string

filletVertices#

const filletVertices: (shape_json, radius, vertex_indices) => string = wasm.path2d_fillet_vertices

Fillet only the listed vertex indices. An empty list fillets every corner (same as path2d_fillet).

Parameters#

shape_json#

string

radius#

number

vertex_indices#

Uint32Array

Returns#

string

fromPolyline#

const fromPolyline: (points, use_transformation, transformation) => string = wasm.path2d_from_polyline

Parameters#

points#

Float64Array

use_transformation#

boolean

transformation#

Float64Array

Returns#

string

fromRegions#

const fromRegions: (regions_json, use_transformation, transformation) => string = wasm.path2d_from_regions

regions_json is a JSON array of arrays of [x, y] rings.

Parameters#

regions_json#

string

use_transformation#

boolean

transformation#

Float64Array

Returns#

string

fromRings#

const fromRings: (rings_json, use_transformation, transformation) => string = wasm.path2d_from_rings

rings_json is a JSON array of rings, each ring an array of [x, y] pairs (NOT a flat [x, y, ...] run — that is what the deserializer refuses).

Parameters#

rings_json#

string

use_transformation#

boolean

transformation#

Float64Array

Returns#

string

isClosed#

const isClosed: (shape_json) => boolean = wasm.path2d_is_closed

Parameters#

shape_json#

string

Returns#

boolean

length#

const length: (shape_json) => number = wasm.path2d_length

Parameters#

shape_json#

string

Returns#

number

offset#

const offset: (shape_json, distance, cap) => string = wasm.path2d_offset

Signed offset: positive dilates, negative erodes, and any OPEN chain is stroked by |distance| with the given cap — "butt" / "square" / anything else, which the TS default reads as round, the same rule parse_operation follows for the boolean op.

Parameters#

shape_json#

string

distance#

number

cap#

string

Returns#

string

plane#

const plane: (shape_json) => Float64Array = wasm.path2d_plane

[nx, ny, nz, constant] — the plane the 3D placement puts this region on.

Parameters#

shape_json#

string

Returns#

Float64Array

rectangle#

const rectangle: (cx, cy, width, height, use_transformation, transformation) => string = wasm.path2d_rectangle

Parameters#

cx#

number

cy#

number

width#

number

height#

number

use_transformation#

boolean

transformation#

Float64Array

Returns#

string

regularPolygon#

const regularPolygon: (cx, cy, radius, sides, use_transformation, transformation) => string = wasm.path2d_regular_polygon

Parameters#

cx#

number

cy#

number

radius#

number

sides#

number

use_transformation#

boolean

transformation#

Float64Array

Returns#

string

reverse#

const reverse: (shape_json) => string = wasm.path2d_reverse

Parameters#

shape_json#

string

Returns#

string

ringSignedArea#

const ringSignedArea: (ring) => number = wasm.path2d_ring_signed_area

ringSignedArea on a flat [x, y, ...] ring.

Parameters#

ring#

Float64Array

Returns#

number

roof#

const roof: (shape_json, pitch, tolerance) => Float64Array = wasm.path2d_roof

Raise a roof from the path's straight skeleton. pitch is the roof angle in radians; the packed triangle soup has z = time · tan(pitch).

Parameters#

shape_json#

string

pitch#

number

tolerance#

number

Returns#

Float64Array

shapeStraightSkeleton#

const shapeStraightSkeleton: (shape_json, tolerance) => string = wasm.path2d_shape_straight_skeleton

Path2d.straightSkeleton(tolerance) — the region's own rings, sampled at tolerance, fed to the same algorithm.

Parameters#

shape_json#

string

tolerance#

number

Returns#

string

signedArea#

const signedArea: (shape_json, tolerance) => number = wasm.path2d_signed_area

Parameters#

shape_json#

string

tolerance#

number

Returns#

number

splitByLine#

const splitByLine: (shape_json, ox, oy, dx, dy) => string = wasm.path2d_split_by_line

Split the path by the infinite line through (ox,oy) in direction (dx,dy). Returns JSON [positive, negative] Path2d documents.

Parameters#

shape_json#

string

ox#

number

oy#

number

dx#

number

dy#

number

Returns#

string

straightSkeleton#

const straightSkeleton: (loops_json) => string = wasm.path2d_straight_skeleton

computeStraightSkeleton(loops) — loops_json is a JSON array of rings, each a JSON array of [x, y] pairs (the shape path2d_from_rings takes). Returns the StraightSkeleton wire object: { nodes: [{ point: [x, y], time }], arcs: [{ a, b }], faces: [[…]] }.

Parameters#

loops_json#

string

Returns#

string

tessellate#

const tessellate: (shape_json, tolerance) => string = wasm.path2d_tessellate

One sampled polyline per shape, as a JSON array of flat [x, y, ...] rings.

Parameters#

shape_json#

string

tolerance#

number

Returns#

string

thicken#

const thicken: (shape_json, distance, join_type, end_type, miter_limit, merge_connected) => string = wasm.path2d_thicken

Stroke by distance: open chains capped with end_type, closed rings turned into hollow bands, everything unioned into one region. join_type is "miter" / "square" / anything else, which the TS default reads as round; end_type follows path2d_offset's cap spelling. merge_connected pre-stitches open paths sharing an endpoint into one chain, so fragments of one original path stroke without stray internal caps — pass false for inputs that merely TOUCH by design.

Parameters#

shape_json#

string

distance#

number

join_type#

string

end_type#

string

miter_limit#

number

merge_connected#

boolean

Returns#

string

toNurbsCurves#

const toNurbsCurves: (shape_json) => string = wasm.path2d_to_nurbs_curves

A JSON array of NurbsCurveJSON, one per shape.

Parameters#

shape_json#

string

Returns#

string

toRegions#

const toRegions: (shape_json, tolerance) => string = wasm.path2d_to_regions

Rings grouped into polygons (outer + holes) by orientation, as a JSON array of arrays of [x, y] pairs.

Parameters#

shape_json#

string

tolerance#

number

Returns#

string

toRings#

const toRings: (shape_json, tolerance) => string = wasm.path2d_to_rings

Sampled rings (closed; first and last do NOT repeat).

Parameters#

shape_json#

string

tolerance#

number

Returns#

string

transform#

const transform: (shape_json, elements) => string = wasm.path2d_transform

Parameters#

shape_json#

string

elements#

Float64Array

Returns#

string

triangulate#

const triangulate: (shape_json, tolerance) => Float64Array = wasm.path2d_triangulate

Group + CDT over the sampled rings, PACKED into one Float64Array: a one-value header holding the vertex-coordinate count, then that many coordinates (x, y, …), then the triangle indices. Indices ride as doubles, exact for every index a real region can hold — the same rule mesh/wasm.rs::pack_triangle_mesh follows, and for the same reason: two parallel buffers, one call.

Parameters#

shape_json#

string

tolerance#

number

Returns#

Float64Array

unionAll#

const unionAll: (regions_json, tolerance, fill_rule) => string = wasm.path2d_union_all

fill_rule is "evenodd" (the default) or "nonzero". regions_json is a JSON array of Path2d.

Parameters#

regions_json#

string

tolerance#

number

fill_rule#

string

Returns#

string

voronoi#

const voronoi: (shape_json, options_json) => string = wasm.path2d_voronoi

options_json is a VoronoiOptions — every field optional, TS defaults.

Parameters#

shape_json#

string

options_json#

string

Returns#

string