vmesh

package

v0.0.0-...-ce97658 Latest Latest Go to latest Published: Mar 17, 2024 License: Apache-2.0 Imports: 10 Imported by: 1

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Repository

github.com/Flokey82/go_gens

Links

Open Source Insights

Documentation ¶

Index ¶

Constants
type Edge
type Extent
- func (e *Extent) BBox() voronoi.BBox
type Heightmap
- func NewHeightmap(m *Mesh) *Heightmap
type Mesh
- func GenerateGoodMesh(n int, extent *Extent) *Mesh
- func MakeMesh(pts []voronoi.Vertex, extent *Extent) *Mesh

Constants ¶

View Source

const (
	VertexOutOfBounds = -2
	VertexSink        = -1
)

Variables ¶

This section is empty.

Functions ¶

This section is empty.

Types ¶

type Edge ¶

type Edge struct {
	IdxA  int
	IdxB  int
	Left  *voronoi.Cell
	Right *voronoi.Cell
}

type Extent ¶

type Extent struct {
	Width  float64
	Height float64
}

func (*Extent) BBox ¶

func (e *Extent) BBox() voronoi.BBox

type Heightmap ¶

type Heightmap struct {
	*Mesh
	Values []float64 // elevation data

}

func NewHeightmap ¶

func NewHeightmap(m *Mesh) *Heightmap

func (*Heightmap) Add ¶

func (h *Heightmap) Add(hms ...*Heightmap)

func (*Heightmap) Diff ¶

func (h *Heightmap) Diff(hms *Heightmap) *Heightmap

func (*Heightmap) Downhill ¶

func (h *Heightmap) Downhill() []int

func (*Heightmap) ExportOBJ ¶

func (h *Heightmap) ExportOBJ(path string) error

ExportOBJ returns a Wavefront OBJ file representing the heightmap.

func (*Heightmap) Len ¶

func (h *Heightmap) Len() int

func (*Heightmap) MapF ¶

func (h *Heightmap) MapF(f func(float64) float64) *Heightmap

func (*Heightmap) MapFIdx ¶

func (h *Heightmap) MapFIdx(f func(val float64) float64) *Heightmap

func (*Heightmap) MinMax ¶

func (h *Heightmap) MinMax() (min, max float64)

func (*Heightmap) TriSlope ¶

func (h *Heightmap) TriSlope(i int) [2]float64

type Mesh ¶

type Mesh struct {
	Points      []voronoi.Vertex        // Points used to generate the voronoi diagram
	Voronoi     *voronoi.Diagram        // Voronoi diagram
	Vertices    []voronoi.Vertex        // Vertex points sourrounding a cell
	AdjacentVxs map[int][]int           // Vertex index to adjacent vertices
	VertexTris  map[int][]*voronoi.Cell // Vertex index to bordering cells (triangles)
	Edges       []Edge                  // Edges in voronoi diagram
	Extent      *Extent
}

func GenerateGoodMesh ¶

func GenerateGoodMesh(n int, extent *Extent) *Mesh

func MakeMesh ¶

func MakeMesh(pts []voronoi.Vertex, extent *Extent) *Mesh

func (*Mesh) ApplyGen ¶

func (m *Mesh) ApplyGen(f genheightmap.GenFunc) *Heightmap

func (*Mesh) Distance ¶

func (m *Mesh) Distance(i, j int) float64

func (*Mesh) IsEdge ¶

func (m *Mesh) IsEdge(i int) bool

func (*Mesh) IsNearEdge ¶

func (m *Mesh) IsNearEdge(i int) bool

func (*Mesh) MapF ¶

func (m *Mesh) MapF(f func(v voronoi.Vertex) float64) *Heightmap

func (*Mesh) Neighbours ¶

func (m *Mesh) Neighbours(vxIdx int) []int

func (*Mesh) Triangulate ¶

func (m *Mesh) Triangulate() (*delaunay.Triangulation, error)

Source Files ¶

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