g2d

package
v0.0.0-...-a0ccc90 Latest Latest
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 Go to latest Published: Aug 19, 2022 License: BSD-2-Clause Imports: 17 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func IsCCW 

func IsCCW(v0 V2d, v1 V2d, v2 V2d) bool

func IsPointInside 

func IsPointInside(p V2d, v0 V2d, v1 V2d, v2 V2d) bool

func NewShaderFor2DAxes 

func NewShaderFor2DAxes(rc gigl.GLRenderingContext) gigl.GLShader

func NewShaderForInstancePoseColor 

func NewShaderForInstancePoseColor(rc gigl.GLRenderingContext) gigl.GLShader

func NewShaderForMaterialColors 

func NewShaderForMaterialColors(rc gigl.GLRenderingContext) gigl.GLShader

func NewShaderForMaterialTexture 

func NewShaderForMaterialTexture(rc gigl.GLRenderingContext) gigl.GLShader

func SelectPoseByWorldXY 

func SelectPoseByWorldXY(sobj *SceneObject)

Types

type BBox 

type BBox [2][2]float32

func NewBBox 

func NewBBox(minx float32, miny float32, maxx float32, maxy float32) *BBox

func NewBBoxEmpty 

func NewBBoxEmpty() *BBox

func (*BBox) AddPoint 

func (b *BBox) AddPoint(p *[2]float32)

func (*BBox) Center 

func (b *BBox) Center() [2]float32

func (*BBox) Height 

func (b *BBox) Height() float32

func (*BBox) IsEmpty 

func (b *BBox) IsEmpty() bool

func (*BBox) IsIncludingPoint 

func (b *BBox) IsIncludingPoint(v *V2d) bool

func (*BBox) Merge 

func (b *BBox) Merge(b2 *BBox) *BBox

func (*BBox) Shape 

func (b *BBox) Shape() [2]float32

func (*BBox) Width 

func (b *BBox) Width() float32

type Camera 

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

func NewCamera 

func NewCamera(wh_aspect_ratio [2]int, fov_in_clipwidth float32, zoom float32) *Camera

func (*Camera) ApplyBoundingBox 

func (self *Camera) ApplyBoundingBox(position bool, zoomlevel bool) *Camera

func (*Camera) IsPointVisible 

func (self *Camera) IsPointVisible(wxy [2]float32) bool

func (*Camera) ProjectWorldToCanvas 

func (self *Camera) ProjectWorldToCanvas(wxy [2]float32) [2]int

func (*Camera) ProjectWorldToClip 

func (self *Camera) ProjectWorldToClip(wxy [2]float32) [2]float32

func (*Camera) Rotate 

func (self *Camera) Rotate(angle_in_degree float32) *Camera

func (*Camera) SetAspectRatio 

func (self *Camera) SetAspectRatio(width int, height int) *Camera

func (*Camera) SetBoundingBox 

func (self *Camera) SetBoundingBox(bbox [2][2]float32) *Camera

func (*Camera) SetFov 

func (self *Camera) SetFov(fov float32) *Camera

func (*Camera) SetPose 

func (self *Camera) SetPose(cx float32, cy float32, angle_in_degree float32) *Camera

func (*Camera) SetZoom 

func (self *Camera) SetZoom(zoom float32) *Camera

func (*Camera) Summary 

func (self *Camera) Summary() string

func (*Camera) Translate 

func (self *Camera) Translate(tx float32, ty float32) *Camera

func (*Camera) UnprojectCanvasDeltaToWorld 

func (self *Camera) UnprojectCanvasDeltaToWorld(deltaxy [2]int) [2]float32

func (*Camera) UnprojectCanvasToWorld 

func (self *Camera) UnprojectCanvasToWorld(canvasxy [2]int) [2]float32

type Geometry 

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

func NewGeometry 

func NewGeometry() *Geometry

func NewGeometryArrow 

func NewGeometryArrow() *Geometry

func NewGeometryArrowHead 

func NewGeometryArrowHead() *Geometry

func NewGeometryOrigin 

func NewGeometryOrigin() *Geometry

func NewGeometryPolygon 

func NewGeometryPolygon(n int, radius float32, starting_angle_in_degree float32) *Geometry

func NewGeometryRectangle 

func NewGeometryRectangle(size float32) *Geometry

func NewGeometryTriangle 

func NewGeometryTriangle(size float32) *Geometry

func (*Geometry) AddEdge 

func (self *Geometry) AddEdge(edge []uint32) uint32

func (*Geometry) AddFace 

func (self *Geometry) AddFace(face []uint32) uint32

func (*Geometry) AddTextureUV 

func (self *Geometry) AddTextureUV(tuv []float32) *Geometry

func (*Geometry) AddVertex 

func (self *Geometry) AddVertex(coords [2]float32) uint32

func (*Geometry) AppyMatrix 

func (self *Geometry) AppyMatrix(matrix *common.Matrix3) *Geometry

func (*Geometry) BuildDataBuffers 

func (self *Geometry) BuildDataBuffers(for_points bool, for_lines bool, for_faces bool)

func (*Geometry) BuildDataBuffersForWireframe 

func (self *Geometry) BuildDataBuffersForWireframe()

func (*Geometry) Clear 

func (self *Geometry) Clear(geom bool, data_buf bool, webgl_buf bool) *Geometry

func (*Geometry) GetIdxBuffer 

func (self *Geometry) GetIdxBuffer(mode int) []uint32

func (*Geometry) GetIdxBufferCount 

func (self *Geometry) GetIdxBufferCount(mode int) int

func (*Geometry) GetVtxBuffer 

func (self *Geometry) GetVtxBuffer(draw_mode int) []float32

func (*Geometry) GetVtxBufferInfo 

func (self *Geometry) GetVtxBufferInfo(draw_mode int) [5]int

func (*Geometry) HasTextureFor 

func (self *Geometry) HasTextureFor(mode string) bool

func (*Geometry) IsDataBufferReady 

func (self *Geometry) IsDataBufferReady() bool

func (*Geometry) IsVtxBufferRebuiltForFaces 

func (self *Geometry) IsVtxBufferRebuiltForFaces() bool

func (*Geometry) Merge 

func (self *Geometry) Merge(g *Geometry) *Geometry

func (*Geometry) Rotate 

func (self *Geometry) Rotate(angle_in_degree float32) *Geometry

func (*Geometry) Scale 

func (self *Geometry) Scale(sx float32, sy float32) *Geometry

func (*Geometry) SetEdges 

func (self *Geometry) SetEdges(edges [][]uint32) *Geometry

func (*Geometry) SetFaces 

func (self *Geometry) SetFaces(faces [][]uint32) *Geometry

func (*Geometry) SetTextureUVs 

func (self *Geometry) SetTextureUVs(tuvs [][]float32) *Geometry

func (*Geometry) SetVertices 

func (self *Geometry) SetVertices(vertices [][2]float32) *Geometry

func (*Geometry) String 

func (self *Geometry) String() string

func (*Geometry) Summary 

func (self *Geometry) Summary() string

func (*Geometry) Translate 

func (self *Geometry) Translate(tx float32, ty float32) *Geometry

type MaterialAlphabetTexture 

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

func NewMaterialAlphabetTexture 

func NewMaterialAlphabetTexture(fontfamily string, fontsize int, color string, outlined bool) *MaterialAlphabetTexture

func (*MaterialAlphabetTexture) GetAlaphabetCharacterIndex 

func (self *MaterialAlphabetTexture) GetAlaphabetCharacterIndex(c rune) int

func (*MaterialAlphabetTexture) GetAlaphabetCharacterWH 

func (self *MaterialAlphabetTexture) GetAlaphabetCharacterWH(scale float32) [2]float32

func (*MaterialAlphabetTexture) GetAlaphabetLength 

func (self *MaterialAlphabetTexture) GetAlaphabetLength() int

func (*MaterialAlphabetTexture) GetAlphabetString 

func (self *MaterialAlphabetTexture) GetAlphabetString() string

func (*MaterialAlphabetTexture) GetFontColor 

func (self *MaterialAlphabetTexture) GetFontColor() string

func (*MaterialAlphabetTexture) GetFontFamily 

func (self *MaterialAlphabetTexture) GetFontFamily() string

func (*MaterialAlphabetTexture) GetFontOutlined 

func (self *MaterialAlphabetTexture) GetFontOutlined() bool

func (*MaterialAlphabetTexture) GetFontSize 

func (self *MaterialAlphabetTexture) GetFontSize() int

func (*MaterialAlphabetTexture) GetTexture 

func (self *MaterialAlphabetTexture) GetTexture() any

func (*MaterialAlphabetTexture) GetTexturePixbuf 

func (self *MaterialAlphabetTexture) GetTexturePixbuf() []uint8

func (*MaterialAlphabetTexture) GetTextureRGB 

func (self *MaterialAlphabetTexture) GetTextureRGB() [3]float32

func (*MaterialAlphabetTexture) GetTextureWH 

func (self *MaterialAlphabetTexture) GetTextureWH() [2]int

func (*MaterialAlphabetTexture) IsLoaded 

func (self *MaterialAlphabetTexture) IsLoaded() bool

func (*MaterialAlphabetTexture) IsLoading 

func (self *MaterialAlphabetTexture) IsLoading() bool

func (*MaterialAlphabetTexture) IsReady 

func (self *MaterialAlphabetTexture) IsReady() bool

func (*MaterialAlphabetTexture) LoadAlphabetTexture 

func (self *MaterialAlphabetTexture) LoadAlphabetTexture()

func (*MaterialAlphabetTexture) MaterialSummary 

func (self *MaterialAlphabetTexture) MaterialSummary() string

func (*MaterialAlphabetTexture) SetAlphabetWH 

func (self *MaterialAlphabetTexture) SetAlphabetWH(wh [2]float32)

func (*MaterialAlphabetTexture) SetError 

func (self *MaterialAlphabetTexture) SetError(err error)

func (*MaterialAlphabetTexture) SetTexture 

func (self *MaterialAlphabetTexture) SetTexture(texture any)

func (*MaterialAlphabetTexture) SetTextureRGB 

func (self *MaterialAlphabetTexture) SetTextureRGB(color any)

func (*MaterialAlphabetTexture) SetTextureWH 

func (self *MaterialAlphabetTexture) SetTextureWH(wh [2]int)

type MaterialColors 

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

func NewMaterialColors 

func NewMaterialColors(colors ...any) *MaterialColors

func (*MaterialColors) GetDrawModeColor 

func (self *MaterialColors) GetDrawModeColor(draw_mode int) [4]float32

func (*MaterialColors) MaterialSummary 

func (self *MaterialColors) MaterialSummary() string

func (*MaterialColors) SetColorForDrawMode 

func (self *MaterialColors) SetColorForDrawMode(draw_mode int, color string) *MaterialColors

type MaterialGlowTexture 

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

func NewMaterialGlowTexture 

func NewMaterialGlowTexture(color any) *MaterialGlowTexture

func (*MaterialGlowTexture) GetTexture 

func (self *MaterialGlowTexture) GetTexture() any

func (*MaterialGlowTexture) GetTexturePixbuf 

func (self *MaterialGlowTexture) GetTexturePixbuf() []uint8

func (*MaterialGlowTexture) GetTextureRGB 

func (self *MaterialGlowTexture) GetTextureRGB() [3]float32

func (*MaterialGlowTexture) GetTextureWH 

func (self *MaterialGlowTexture) GetTextureWH() [2]int

func (*MaterialGlowTexture) IsLoaded 

func (self *MaterialGlowTexture) IsLoaded() bool

func (*MaterialGlowTexture) IsLoading 

func (self *MaterialGlowTexture) IsLoading() bool

func (*MaterialGlowTexture) IsReady 

func (self *MaterialGlowTexture) IsReady() bool

func (*MaterialGlowTexture) LoadGlowTexture 

func (self *MaterialGlowTexture) LoadGlowTexture()

func (*MaterialGlowTexture) MaterialSummary 

func (self *MaterialGlowTexture) MaterialSummary() string

func (*MaterialGlowTexture) SetTexture 

func (self *MaterialGlowTexture) SetTexture(texture any)

func (*MaterialGlowTexture) SetTextureRGB 

func (self *MaterialGlowTexture) SetTextureRGB(color any)

type MaterialTexture 

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

func NewMaterialTexture 

func NewMaterialTexture(filepath string, color ...string) *MaterialTexture

func (*MaterialTexture) GetTexture 

func (self *MaterialTexture) GetTexture() any

func (*MaterialTexture) GetTexturePixbuf 

func (self *MaterialTexture) GetTexturePixbuf() []uint8

func (*MaterialTexture) GetTextureRGB 

func (self *MaterialTexture) GetTextureRGB() [3]float32

func (*MaterialTexture) GetTextureWH 

func (self *MaterialTexture) GetTextureWH() [2]int

func (*MaterialTexture) IsLoaded 

func (self *MaterialTexture) IsLoaded() bool

func (*MaterialTexture) IsLoading 

func (self *MaterialTexture) IsLoading() bool

func (*MaterialTexture) IsReady 

func (self *MaterialTexture) IsReady() bool

func (*MaterialTexture) LoadTextureFromLocalFile 

func (self *MaterialTexture) LoadTextureFromLocalFile()

func (*MaterialTexture) LoadTextureFromRemoteServer 

func (self *MaterialTexture) LoadTextureFromRemoteServer()

func (*MaterialTexture) MaterialSummary 

func (self *MaterialTexture) MaterialSummary() string

func (*MaterialTexture) SetTexture 

func (self *MaterialTexture) SetTexture(texture any)

func (*MaterialTexture) SetTextureRGB 

func (self *MaterialTexture) SetTextureRGB(color any)

type Overlay 

type Overlay interface {
	Render(pvm *common.Matrix3)
}

type OverlayLabel 

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

func (*OverlayLabel) SetBackground 

func (self *OverlayLabel) SetBackground(bkgtype string) *OverlayLabel

func (*OverlayLabel) SetCharacterWH 

func (self *OverlayLabel) SetCharacterWH(chwh [2]float32) *OverlayLabel

func (*OverlayLabel) SetPose 

func (self *OverlayLabel) SetPose(rotation float32, offset_reference string, offset [2]float32) *OverlayLabel

func (*OverlayLabel) String 

func (self *OverlayLabel) String(chwh [2]float32) string

type OverlayLabelLayer 

type OverlayLabelLayer struct {
	Labels []*OverlayLabel //
	// contains filtered or unexported fields
}

func NewOverlayLabelLayer 

func NewOverlayLabelLayer(rc gigl.GLRenderingContext, fontsize int, outlined bool) *OverlayLabelLayer

func (*OverlayLabelLayer) AddLabel 

func (self *OverlayLabelLayer) AddLabel(labels ...*OverlayLabel) *OverlayLabelLayer

func (*OverlayLabelLayer) AddLabelsForTest 

func (self *OverlayLabelLayer) AddLabelsForTest() *OverlayLabelLayer

func (*OverlayLabelLayer) AddTextLabel 

func (self *OverlayLabelLayer) AddTextLabel(label_text string, xy [2]float32, color string, offref string) *OverlayLabel

func (*OverlayLabelLayer) CreateLabel 

func (self *OverlayLabelLayer) CreateLabel(label_text string, xy [2]float32, color string) *OverlayLabel

func (*OverlayLabelLayer) FindLabel 

func (self *OverlayLabelLayer) FindLabel(label_text string) *OverlayLabel

func (*OverlayLabelLayer) Render 

func (self *OverlayLabelLayer) Render(pvm *common.Matrix3)

func (*OverlayLabelLayer) String 

func (self *OverlayLabelLayer) String(chwh [2]float32) string

func (*OverlayLabelLayer) Summary 

func (self *OverlayLabelLayer) Summary() string

type OverlayMarkerLayer 

type OverlayMarkerLayer struct {
	Markers []*SceneObject // list of OverlayMarkers to be rendered (in pixels in CAMERA space)
	// contains filtered or unexported fields
}

func NewOverlayMarkerLayer 

func NewOverlayMarkerLayer(rc gigl.GLRenderingContext) *OverlayMarkerLayer

func (*OverlayMarkerLayer) AddArrowHeadMarker 

func (self *OverlayMarkerLayer) AddArrowHeadMarker(size float32, color string, outline_color string, rotation float32, xy [2]float32) *OverlayMarkerLayer

func (*OverlayMarkerLayer) AddArrowMarker 

func (self *OverlayMarkerLayer) AddArrowMarker(size float32, color string, outline_color string, rotation float32, xy [2]float32) *OverlayMarkerLayer

func (*OverlayMarkerLayer) AddMarker 

func (self *OverlayMarkerLayer) AddMarker(marker ...*SceneObject) *OverlayMarkerLayer

func (*OverlayMarkerLayer) AddMarkersForTest 

func (self *OverlayMarkerLayer) AddMarkersForTest() *OverlayMarkerLayer

func (*OverlayMarkerLayer) AddSpriteMarker 

func (self *OverlayMarkerLayer) AddSpriteMarker(imgpath string, color string, wh [2]float32, xy [2]float32, offref string) *OverlayMarkerLayer

func (*OverlayMarkerLayer) CreateArrowHeadMarker 

func (self *OverlayMarkerLayer) CreateArrowHeadMarker(size float32, color string, outline_color string, use_poses bool) *SceneObject

func (*OverlayMarkerLayer) CreateArrowMarker 

func (self *OverlayMarkerLayer) CreateArrowMarker(size float32, color string, outline_color string, use_poses bool) *SceneObject

func (*OverlayMarkerLayer) CreateSpriteMarker 

func (self *OverlayMarkerLayer) CreateSpriteMarker(imgpath string, color string, wh [2]float32, offref string, use_poses bool) *SceneObject

func (*OverlayMarkerLayer) GetShaderForMarker 

func (self *OverlayMarkerLayer) GetShaderForMarker(use_poses bool) gigl.GLShader

func (*OverlayMarkerLayer) GetShaderForSpriteMarker 

func (self *OverlayMarkerLayer) GetShaderForSpriteMarker(wh [2]float32, offrot [3]float32, use_poses bool) gigl.GLShader

func (*OverlayMarkerLayer) Render 

func (self *OverlayMarkerLayer) Render(pvm *common.Matrix3)

type Renderer 

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

func NewRenderer 

func NewRenderer(rc gigl.GLRenderingContext) *Renderer

func (*Renderer) Clear 

func (self *Renderer) Clear(scene *Scene)

func (*Renderer) RenderAxes 

func (self *Renderer) RenderAxes(camera *Camera, length float32)

func (*Renderer) RenderScene 

func (self *Renderer) RenderScene(scene *Scene, camera *Camera)

func (*Renderer) RenderSceneObject 

func (self *Renderer) RenderSceneObject(scnobj *SceneObject, pvm *common.Matrix3) error

type Scene 

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

func NewScene 

func NewScene(bkg_color string) *Scene

func (*Scene) Add 

func (self *Scene) Add(scnobj ...*SceneObject) *Scene

func (*Scene) AddOverlay 

func (self *Scene) AddOverlay(overlay ...Overlay) *Scene

func (*Scene) Get 

func (self *Scene) Get(indices ...int) *SceneObject

func (*Scene) GetBBoxSizeCenter 

func (self *Scene) GetBBoxSizeCenter(renew bool) ([2][2]float32, [2]float32, [2]float32)

func (*Scene) GetBkgColor 

func (self *Scene) GetBkgColor() [3]float32

func (*Scene) GetBoundingBox 

func (self *Scene) GetBoundingBox(renew bool) *BBox

func (*Scene) SetBkgColor 

func (self *Scene) SetBkgColor(color string) *Scene

func (*Scene) String 

func (self *Scene) String() string

type SceneObject 

type SceneObject struct {
	Geometry *Geometry       // geometry interface
	Material gigl.GLMaterial // material
	VShader  gigl.GLShader   // vert shader and its bindings
	EShader  gigl.GLShader   // edge shader and its bindings
	FShader  gigl.GLShader   // face shader and its bindings

	UseDepth bool // depth test flag (default is true)
	UseBlend bool // blending flag with alpha (default is false)
	// contains filtered or unexported fields
}

func NewSceneObject 

func NewSceneObject(geometry *Geometry, material gigl.GLMaterial,
	vshader gigl.GLShader, eshader gigl.GLShader, fshader gigl.GLShader) *SceneObject

func NewSceneObject_HexagonWireframe 

func NewSceneObject_HexagonWireframe(rc gigl.GLRenderingContext) *SceneObject

func NewSceneObject_RectangleInstancesExample 

func NewSceneObject_RectangleInstancesExample(rc gigl.GLRenderingContext) *SceneObject

func NewSceneObject_RedTriangle 

func NewSceneObject_RedTriangle(rc gigl.GLRenderingContext) *SceneObject

func SelectObjectByWorldXY 

func SelectObjectByWorldXY(scene *Scene) *SceneObject

func (*SceneObject) AddChild 

func (self *SceneObject) AddChild(child *SceneObject) *SceneObject

func (*SceneObject) ClearInstanceBuffer 

func (self *SceneObject) ClearInstanceBuffer()

func (*SceneObject) GetBoundingBox 

func (self *SceneObject) GetBoundingBox(m *common.Matrix3, renew bool) *BBox

func (*SceneObject) IsReady 

func (self *SceneObject) IsReady() bool

func (*SceneObject) Rotate 

func (self *SceneObject) Rotate(angle_in_degree float32) *SceneObject

func (*SceneObject) Scale 

func (self *SceneObject) Scale(sx float32, sy float32) *SceneObject

func (*SceneObject) SetInstanceBuffer 

func (self *SceneObject) SetInstanceBuffer(instance_count int, instance_stride int, data []float32) *SceneObject

func (*SceneObject) SetInstanceColorValues 

func (self *SceneObject) SetInstanceColorValues(instance_index int, offset int, v0 uint8, v1 uint8, v2 uint8, v3 uint8)

func (*SceneObject) SetInstancePoseValues 

func (self *SceneObject) SetInstancePoseValues(instance_index int, offset int, values ...float32)

func (*SceneObject) SetTransformation 

func (self *SceneObject) SetTransformation(txy [2]float32, angle_in_degree float32, sxy [2]float32) *SceneObject

func (*SceneObject) Summary 

func (self *SceneObject) Summary() string

func (*SceneObject) Translate 

func (self *SceneObject) Translate(tx float32, ty float32) *SceneObject

type V2d 

type V2d [2]float32

func NewV2d 

func NewV2d(x float32, y float32) *V2d

func NewV2dByAvg 

func NewV2dByAvg(vs ...[2]float32) *V2d

func NewV2dBySub 

func NewV2dBySub(a [2]float32, b [2]float32) *V2d

func NewV2dBySum 

func NewV2dBySum(vs ...[2]float32) *V2d

func (*V2d) Add 

func (v *V2d) Add(v2 *V2d) *V2d

func (*V2d) Clone 

func (v *V2d) Clone() *V2d

func (*V2d) Cross 

func (a *V2d) Cross(b *V2d) float32

func (*V2d) Dot 

func (a *V2d) Dot(b *V2d) float32

func (*V2d) Length 

func (v *V2d) Length() float32

func (*V2d) Normalize 

func (v *V2d) Normalize() *V2d

func (*V2d) Scale 

func (v *V2d) Scale(sx float32, sy float32) *V2d

func (*V2d) Shift 

func (v *V2d) Shift(dx float32, dy float32) *V2d

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