sdfexp

package

v0.0.0-...-1c91121 Latest Latest Go to latest Published: Feb 13, 2023 License: MIT Imports: 10 Imported by: 0

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Repository

github.com/soypat/sdf

Links

Open Source Insights

Documentation ¶

Index ¶

Constants
func UniformTetrahedronMesh(resolution float64, s sdf.SDF3) (nodes []r3.Vec, tetras [][4]int)
type BIH
- func ImportModelV2(model []r3.Triangle, tol float64) (*BIH, error)
type ImportedSDF3
- func ImportModel(model []r3.Triangle, vertexTolOrZero float64) (ImportedSDF3, error)
- func (s ImportedSDF3) Bounds() r3.Box
- func (s ImportedSDF3) Evaluate(q r3.Vec) float64
type Mesh

Constants ¶

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const (
	LEAF = iota
	X_CLIP
	Y_CLIP
	Z_CLIP
)

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const (
	FACE   = 0
	EDGE   = 1 << 30
	VERTEX = 2 << 30
)

Variables ¶

This section is empty.

Functions ¶

func UniformTetrahedronMesh ¶

func UniformTetrahedronMesh(resolution float64, s sdf.SDF3) (nodes []r3.Vec, tetras [][4]int)

UniformTetrahedronMesh assembles a volumetric tetrahedron mesh that tries its very best to encapsulate the sdf model. For best results mesh smooth parts that make good use of rounding, MinFunc and MaxFunc in Union, Difference and Intersect operations.

Types ¶

type BIH ¶

type BIH struct {
	Mesh
	// contains filtered or unexported fields
}

TODO figure out what to make public

func ImportModelV2 ¶

func ImportModelV2(model []r3.Triangle, tol float64) (*BIH, error)

func (*BIH) Bounds ¶

func (b *BIH) Bounds() r3.Box

func (*BIH) DistNearestTri ¶

func (b *BIH) DistNearestTri(target r3.Vec) float64

func (*BIH) Evaluate ¶

func (b *BIH) Evaluate(p r3.Vec) float64

type ImportedSDF3 ¶

type ImportedSDF3 struct {
	// contains filtered or unexported fields
}

func ImportModel ¶

func ImportModel(model []r3.Triangle, vertexTolOrZero float64) (ImportedSDF3, error)

ImportModel instantiates an SDF3 from a set of triangles defining a manifold surface. It can be used to import SDFs from triangle files such as STL and 3MF files. It will choose shared vertices among triangles using vertexTol. vertexTol should be of the order of 1/1000th of the size of the smallest triangle in the model. If set to 0 then it is inferred automatically.

func (ImportedSDF3) Bounds ¶

func (s ImportedSDF3) Bounds() r3.Box

func (ImportedSDF3) Evaluate ¶

func (s ImportedSDF3) Evaluate(q r3.Vec) float64

type Mesh ¶

type Mesh struct {
	Edge_adj map[[2]int]int // edge to triangles mapping for adjacency
	Indices  [][3]int       // indices into the vertex list
	Vertices []r3.Vec
	Bb       r3.Box
}

Source Files ¶

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