Miscellaneous data structures for interfacing with this library. More...

Classes
struct	PolyVert
	Polygon vertex. More...
struct	Smoothness
	Defines which edges to sharpen and how much for the Manifold.Smooth() constructor. More...
struct	RayHit
	Result of a ray cast query against a Manifold. More...
class	ExecutionContext
	Observe and control a long-running Manifold evaluation. More...
struct	Box
	Axis-aligned 3D box, primarily for bounding. More...
struct	Rect
	Axis-aligned 2D box, primarily for bounding. More...
class	Quality
	These static properties control how circular shapes are quantized by default on construction. More...

Typedefs
using	SimplePolygonIdx = std::vector<PolyVert>
	Single polygon contour, wound CCW, with indices. First and last point are implicitly connected. Should ensure all input is ε-valid.
using	PolygonsIdx = std::vector<SimplePolygonIdx>
	Set of indexed polygons with holes. Order of contours is arbitrary. Can contain any depth of nested holes and any number of separate polygons. Should ensure all input is ε-valid.
using	SimplePolygon = std::vector<vec2>
	Single polygon contour, wound CCW. First and last point are implicitly connected. Should ensure all input is ε-valid.
using	Polygons = std::vector<SimplePolygon>
	Set of polygons with holes. Order of contours is arbitrary. Can contain any depth of nested holes and any number of separate polygons. Should ensure all input is ε-valid.

Enumerations
enum class	OpType : char { Add , Subtract , Intersect }
	Boolean operation type: Add (Union), Subtract (Difference), and Intersect.
enum class	JoinType { Square , Round , Miter , Bevel }

Detailed Description

Miscellaneous data structures for interfacing with this library.

Class Documentation

struct manifold::PolyVert

Polygon vertex.

Class Members
vec2	pos	X-Y position.
int	idx	ID or index into another vertex vector.

struct manifold::Smoothness

Defines which edges to sharpen and how much for the Manifold.Smooth() constructor.

Class Members
size_t	halfedge	The halfedge index = 3 * tri + i, referring to Mesh.triVerts[tri][i].
double	smoothness	A value between 0 and 1, where 0 is sharp and 1 is the default and the curvature is interpolated between these values. The two paired halfedges can have different values while maintaining C-1 continuity (except for 0).

struct manifold::RayHit

Result of a ray cast query against a Manifold.

Class Members
uint64_t	faceID = 0	The triangle index that was hit.
double	distance = 0	The parametric distance along the ray segment in the closed interval [0, 1], where 0 is the origin and 1 is the endpoint. Hits exactly at the origin or endpoint are included.
vec3	position = vec3(0.0)	The 3D position of the hit point.
vec3	normal = vec3(0.0)	The geometric face normal at the hit.

enum class JoinType

strong

Specifies the treatment of path/contour joins (corners) when offseting CrossSections. See the Clipper2 doc for illustrations.

Enumerator
Square	Squaring is applied uniformly at all joins where the internal join angle is less that 90 degrees. The squared edge will be at exactly the offset distance from the join vertex.
Round	Rounding is applied to all joins that have convex external angles, and it maintains the exact offset distance from the join vertex.
Miter	There's a necessary limit to mitered joins (to avoid narrow angled joins producing excessively long and narrow spikes). So where mitered joins would exceed a given maximum miter distance (relative to the offset distance), these are 'squared' instead.
Bevel	Bevelled joins are similar to 'squared' joins except that squaring won't occur at a fixed distance. While bevelled joins may not be as pretty as squared joins, bevelling is much easier (ie faster) than squaring. And perhaps this is why bevelling rather than squaring is preferred in numerous graphics display formats (including SVG and PDF document formats).

Manifold 3.0 Robust geometry