entity

package
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 Go to latest Published: Aug 6, 2025 License: MIT Imports: 4 Imported by: 28

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Overview

ENTITIES section

Index

Constants

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const (
	LEFT_BASE = iota
	CENTER_BASE
	RIGHT_BASE
	LEFT_BOTTOM
	CENTER_BOTTOM
	RIGHT_BOTTOM
	LEFT_CENTER
	CENTER_CENTER
	RIGHT_CENTER
	LEFT_TOP
	CENTER_TOP
	RIGHT_TOP
)

Text Anchor

Variables

This section is empty.

Functions

func EntityTypeString 

func EntityTypeString(t EntityType) string

EntityTypeString converts EntityType to string. If EntityType is out of range, it returns empty string.

func NewEntity 

func NewEntity(t EntityType) *entity

NewEntity creates a new entity.

Types

type Arc 

type Arc struct {
	*Circle
	Angle []float64 // 50, 51 (Degree)
}

func NewArc 

func NewArc(c *Circle) *Arc

NewArc creates a new Arc.

func (*Arc) Format 

func (a *Arc) Format(f format.Formatter)

Format writes data to formatter.

func (Arc) Handle 

func (e Arc) Handle() int

Handle returns a handle value of TABLE.

func (*Arc) IsEntity 

func (a *Arc) IsEntity() bool

IsEntity is for Entity interface.

func (Arc) Layer 

func (e Arc) Layer() *table.Layer

Layer returns entity's Layer.

func (Arc) SetBlockRecord 

func (e Arc) SetBlockRecord(h handle.Handler)

SetBlockRecord sets BLOCK_RECORD to entity (code 330).

func (Arc) SetEntityType 

func (e Arc) SetEntityType(t EntityType)

SetEntityType sets entity type.

func (Arc) SetHandle 

func (e Arc) SetHandle(v *int)

SetHandle sets handles to TABLE itself and each SymbolTable.

func (Arc) SetLayer 

func (e Arc) SetLayer(l *table.Layer)

SetLayer sets Layer to entity.

func (Arc) SetLtscale 

func (e Arc) SetLtscale(v float64)

SetLtscale sets Layer to entity.

func (Arc) SetOwner 

func (e Arc) SetOwner(h handle.Handler)

SetOwner sets an owner.

func (*Arc) String 

func (a *Arc) String() string

String write out the String representation

type Circle 

type Circle struct {
	Center    []float64 // 10, 20, 30
	Radius    float64   // 40
	Direction []float64 // 210, 220, 230
	// contains filtered or unexported fields
}

Circle represents CIRCLE Entity.

func NewCircle 

func NewCircle() *Circle

NewCircle creates a new Circle.

func (*Circle) BBox 

func (c *Circle) BBox() ([]float64, []float64)

func (*Circle) CurrentCoord 

func (c *Circle) CurrentCoord() []float64

CurrentCoord returns center point coord.

func (*Circle) CurrentDirection 

func (c *Circle) CurrentDirection() []float64

CurrentDirection returns extrusion direction.

func (*Circle) Format 

func (c *Circle) Format(f format.Formatter)

Format writes data to formatter.

func (*Circle) FormatString 

func (c *Circle) FormatString(f format.Formatter) string

FormatString outputs data using given formatter.

func (Circle) Handle 

func (e Circle) Handle() int

Handle returns a handle value of TABLE.

func (*Circle) IsEntity 

func (c *Circle) IsEntity() bool

IsEntity is for Entity interface.

func (Circle) Layer 

func (e Circle) Layer() *table.Layer

Layer returns entity's Layer.

func (Circle) SetBlockRecord 

func (e Circle) SetBlockRecord(h handle.Handler)

SetBlockRecord sets BLOCK_RECORD to entity (code 330).

func (*Circle) SetCoord 

func (c *Circle) SetCoord(co []float64)

SetCoord sets new center point coord.

func (*Circle) SetDirection 

func (c *Circle) SetDirection(d []float64)

SetDirection sets new extrusion direction.

func (Circle) SetEntityType 

func (e Circle) SetEntityType(t EntityType)

SetEntityType sets entity type.

func (Circle) SetHandle 

func (e Circle) SetHandle(v *int)

SetHandle sets handles to TABLE itself and each SymbolTable.

func (Circle) SetLayer 

func (e Circle) SetLayer(l *table.Layer)

SetLayer sets Layer to entity.

func (Circle) SetLtscale 

func (e Circle) SetLtscale(v float64)

SetLtscale sets Layer to entity.

func (Circle) SetOwner 

func (e Circle) SetOwner(h handle.Handler)

SetOwner sets an owner.

func (*Circle) String 

func (c *Circle) String() string

String outputs data using default formatter.

type Entities 

type Entities []Entity

Entities represents ENTITIES section.

func New 

func New() Entities

New creates a new Entities.

func (Entities) Add 

func (es Entities) Add(e Entity) Entities

Add adds a new entity to ENTITIES section.

func (Entities) Format 

func (es Entities) Format(f format.Formatter)

Format writes ENTITIES data to formatter.

func (Entities) SetHandle 

func (es Entities) SetHandle(v *int)

SetHandle sets handles to each entity.

type Entity 

type Entity interface {
	IsEntity() bool
	Format(format.Formatter)
	Handle() int
	SetHandle(*int)
	SetBlockRecord(handle.Handler)
	Layer() *table.Layer
	SetLayer(*table.Layer)
	SetLtscale(float64)
	BBox() ([]float64, []float64)
}

Entity is interface for DXF Entities.

type EntityType 

type EntityType int

EntityType represents Entity names (code 2) 

const (
	LINE EntityType = iota
	THREEDFACE
	LWPOLYLINE
	CIRCLE
	POLYLINE
	VERTEX
	POINT
	ARC
	TEXT
	SPLINE
)

Entity name: code 2

func EntityTypeValue 

func EntityTypeValue(t string) EntityType

EntityTypeValue converts string to EntityType. If string is unknown EntityType, it returns -1.

type Line 

type Line struct {
	Start []float64 // 10, 20, 30
	End   []float64 // 11, 21, 31
	// contains filtered or unexported fields
}

Line represents LINE Entity.

func NewLine 

func NewLine() *Line

NewLine creates a new Line.

func (*Line) BBox 

func (l *Line) BBox() ([]float64, []float64)

func (*Line) Direction 

func (l *Line) Direction(normalize bool) []float64

func (*Line) Format 

func (l *Line) Format(f format.Formatter)

Format writes data to formatter.

func (*Line) FormatString 

func (l *Line) FormatString(f format.Formatter) string

FormatString outputs data using given formatter.

func (Line) Handle 

func (e Line) Handle() int

Handle returns a handle value of TABLE.

func (*Line) IsEntity 

func (l *Line) IsEntity() bool

IsEntity is for Entity interface.

func (Line) Layer 

func (e Line) Layer() *table.Layer

Layer returns entity's Layer.

func (*Line) Length 

func (l *Line) Length() float64

func (*Line) Move 

func (l *Line) Move(x, y, z float64)

func (Line) SetBlockRecord 

func (e Line) SetBlockRecord(h handle.Handler)

SetBlockRecord sets BLOCK_RECORD to entity (code 330).

func (Line) SetEntityType 

func (e Line) SetEntityType(t EntityType)

SetEntityType sets entity type.

func (Line) SetHandle 

func (e Line) SetHandle(v *int)

SetHandle sets handles to TABLE itself and each SymbolTable.

func (Line) SetLayer 

func (e Line) SetLayer(l *table.Layer)

SetLayer sets Layer to entity.

func (Line) SetLtscale 

func (e Line) SetLtscale(v float64)

SetLtscale sets Layer to entity.

func (Line) SetOwner 

func (e Line) SetOwner(h handle.Handler)

SetOwner sets an owner.

func (*Line) String 

func (l *Line) String() string

String outputs data using default formatter.

type LwPolyline 

type LwPolyline struct {
	Num      int // 90
	Closed   bool
	Vertices [][]float64
	Bulges   []float64 // 42
	// contains filtered or unexported fields
}

LwPolyline represents LWPOLYLINE Entity.

func NewLwPolyline 

func NewLwPolyline(size int) *LwPolyline

NewLwPolyline creates a new LwPolyline.

func (*LwPolyline) BBox 

func (l *LwPolyline) BBox() ([]float64, []float64)

func (LwPolyline) Bulge 

func (l LwPolyline) Bulge(index int) ([]float64, float64)

Bulge computes the center and the ray of the arc to reach the vertex.

func (*LwPolyline) Close 

func (l *LwPolyline) Close()

Close closes LwPolyline.

func (*LwPolyline) Format 

func (l *LwPolyline) Format(f format.Formatter)

Format writes data to formatter.

func (*LwPolyline) FormatString 

func (l *LwPolyline) FormatString(f format.Formatter) string

FormatString outputs data using given formatter.

func (LwPolyline) Handle 

func (e LwPolyline) Handle() int

Handle returns a handle value of TABLE.

func (*LwPolyline) IsEntity 

func (l *LwPolyline) IsEntity() bool

IsEntity is for Entity interface.

func (LwPolyline) Layer 

func (e LwPolyline) Layer() *table.Layer

Layer returns entity's Layer.

func (LwPolyline) SetBlockRecord 

func (e LwPolyline) SetBlockRecord(h handle.Handler)

SetBlockRecord sets BLOCK_RECORD to entity (code 330).

func (LwPolyline) SetEntityType 

func (e LwPolyline) SetEntityType(t EntityType)

SetEntityType sets entity type.

func (LwPolyline) SetHandle 

func (e LwPolyline) SetHandle(v *int)

SetHandle sets handles to TABLE itself and each SymbolTable.

func (LwPolyline) SetLayer 

func (e LwPolyline) SetLayer(l *table.Layer)

SetLayer sets Layer to entity.

func (LwPolyline) SetLtscale 

func (e LwPolyline) SetLtscale(v float64)

SetLtscale sets Layer to entity.

func (LwPolyline) SetOwner 

func (e LwPolyline) SetOwner(h handle.Handler)

SetOwner sets an owner.

func (*LwPolyline) String 

func (l *LwPolyline) String() string

String outputs data using default formatter.

type Point 

type Point struct {
	Coord []float64 // 10, 20, 30
	// contains filtered or unexported fields
}

Point represents POINT Entity.

func NewPoint 

func NewPoint(coord ...float64) *Point

NewPoint creates a new Point.

func (*Point) BBox 

func (p *Point) BBox() ([]float64, []float64)

func (*Point) Format 

func (p *Point) Format(f format.Formatter)

Format writes data to formatter.

func (*Point) FormatString 

func (p *Point) FormatString(f format.Formatter) string

FormatString outputs data using given formatter.

func (Point) Handle 

func (e Point) Handle() int

Handle returns a handle value of TABLE.

func (*Point) IsEntity 

func (p *Point) IsEntity() bool

IsEntity is for Entity interface.

func (Point) Layer 

func (e Point) Layer() *table.Layer

Layer returns entity's Layer.

func (Point) SetBlockRecord 

func (e Point) SetBlockRecord(h handle.Handler)

SetBlockRecord sets BLOCK_RECORD to entity (code 330).

func (Point) SetEntityType 

func (e Point) SetEntityType(t EntityType)

SetEntityType sets entity type.

func (Point) SetHandle 

func (e Point) SetHandle(v *int)

SetHandle sets handles to TABLE itself and each SymbolTable.

func (Point) SetLayer 

func (e Point) SetLayer(l *table.Layer)

SetLayer sets Layer to entity.

func (Point) SetLtscale 

func (e Point) SetLtscale(v float64)

SetLtscale sets Layer to entity.

func (Point) SetOwner 

func (e Point) SetOwner(h handle.Handler)

SetOwner sets an owner.

func (*Point) String 

func (p *Point) String() string

String outputs data using default formatter.

type Polyline 

type Polyline struct {
	Flag int

	Vertices []*Vertex
	// contains filtered or unexported fields
}

Polyline represents POLYLINE Entity.

func NewPolyline 

func NewPolyline() *Polyline

NewPolyline creates a new Polyline.

func (*Polyline) AddVertex 

func (p *Polyline) AddVertex(x, y, z float64) *Vertex

AddVertex adds a new vertex to Polyline.

func (*Polyline) BBox 

func (p *Polyline) BBox() ([]float64, []float64)

func (Polyline) Bulge 

func (p Polyline) Bulge(index int) ([]float64, float64)

Bulge computes the center and the ray of the arc to reach the vertex.

func (*Polyline) Close 

func (p *Polyline) Close()

Close closes Polyline.

func (*Polyline) Format 

func (p *Polyline) Format(f format.Formatter)

Format writes data to formatter.

func (*Polyline) FormatString 

func (p *Polyline) FormatString(f format.Formatter) string

FormatString outputs data using given formatter.

func (Polyline) Handle 

func (e Polyline) Handle() int

Handle returns a handle value of TABLE.

func (*Polyline) IsEntity 

func (p *Polyline) IsEntity() bool

IsEntity is for Entity interface.

func (Polyline) Layer 

func (e Polyline) Layer() *table.Layer

Layer returns entity's Layer.

func (Polyline) SetBlockRecord 

func (e Polyline) SetBlockRecord(h handle.Handler)

SetBlockRecord sets BLOCK_RECORD to entity (code 330).

func (Polyline) SetEntityType 

func (e Polyline) SetEntityType(t EntityType)

SetEntityType sets entity type.

func (*Polyline) SetHandle 

func (p *Polyline) SetHandle(h *int)

SetHandle sets handles to itself and its vertices.

func (Polyline) SetLayer 

func (e Polyline) SetLayer(l *table.Layer)

SetLayer sets Layer to entity.

func (Polyline) SetLtscale 

func (e Polyline) SetLtscale(v float64)

SetLtscale sets Layer to entity.

func (Polyline) SetOwner 

func (e Polyline) SetOwner(h handle.Handler)

SetOwner sets an owner.

func (*Polyline) String 

func (p *Polyline) String() string

String outputs data using default formatter.

type Spline 

type Spline struct {
	Normal    []float64   // 210, 220, 230
	Flag      int         // 70
	Degree    int         // 71
	Knots     []float64   // 72, 40
	Controls  [][]float64 // 73, 10, 20, 30
	Fits      [][]float64 // 74, 11, 21, 31
	Tolerance []float64   // 42, 43, 44
	// contains filtered or unexported fields
}

Spline represents LINE Entity.

func NewSpline 

func NewSpline() *Spline

NewSpline creates a new Spline.

func (*Spline) BBox 

func (s *Spline) BBox() ([]float64, []float64)

BBox calculates the bounding box of the Spline.

func (*Spline) Format 

func (s *Spline) Format(f format.Formatter)

Format writes data to formatter.

func (*Spline) FormatString 

func (s *Spline) FormatString(f format.Formatter) string

FormatString outputs data using given formatter.

func (Spline) Handle 

func (e Spline) Handle() int

Handle returns a handle value of TABLE.

func (*Spline) IsEntity 

func (l *Spline) IsEntity() bool

IsEntity is for Entity interface.

func (Spline) Layer 

func (e Spline) Layer() *table.Layer

Layer returns entity's Layer.

func (Spline) SetBlockRecord 

func (e Spline) SetBlockRecord(h handle.Handler)

SetBlockRecord sets BLOCK_RECORD to entity (code 330).

func (Spline) SetEntityType 

func (e Spline) SetEntityType(t EntityType)

SetEntityType sets entity type.

func (Spline) SetHandle 

func (e Spline) SetHandle(v *int)

SetHandle sets handles to TABLE itself and each SymbolTable.

func (Spline) SetLayer 

func (e Spline) SetLayer(l *table.Layer)

SetLayer sets Layer to entity.

func (Spline) SetLtscale 

func (e Spline) SetLtscale(v float64)

SetLtscale sets Layer to entity.

func (Spline) SetOwner 

func (e Spline) SetOwner(h handle.Handler)

SetOwner sets an owner.

func (*Spline) String 

func (s *Spline) String() string

String outputs data using default formatter.

type Text 

type Text struct {
	Coord1         []float64    // 10, 20, 30
	Coord2         []float64    // 11, 21, 31
	Height         float64      // 40
	Rotation       float64      // 50
	WidthFactor    float64      // 41
	ObliqueAngle   float64      // 51
	Value          string       // 1
	Style          *table.Style // 7
	GenFlag        int          // 71
	HorizontalFlag int          // 72
	VerticalFlag   int          // 73
	// contains filtered or unexported fields
}

Text represents TEXT Entity.

func NewText 

func NewText() *Text

NewText creates a new Text.

func (*Text) Anchor 

func (t *Text) Anchor(pos int)

Anchor sets anchor point flags.

func (*Text) BBox 

func (t *Text) BBox() ([]float64, []float64)

func (*Text) FlipHorizontal 

func (t *Text) FlipHorizontal()

FlipHorizontal flips Text horizontally.

func (*Text) FlipVertical 

func (t *Text) FlipVertical()

FlipVertical flips Text vertically.

func (*Text) Format 

func (t *Text) Format(f format.Formatter)

Format writes data to formatter.

func (*Text) FormatString 

func (t *Text) FormatString(f format.Formatter) string

FormatString outputs data using given formatter.

func (Text) Handle 

func (e Text) Handle() int

Handle returns a handle value of TABLE.

func (*Text) IsEntity 

func (t *Text) IsEntity() bool

IsEntity is for Entity interface.

func (Text) Layer 

func (e Text) Layer() *table.Layer

Layer returns entity's Layer.

func (Text) SetBlockRecord 

func (e Text) SetBlockRecord(h handle.Handler)

SetBlockRecord sets BLOCK_RECORD to entity (code 330).

func (Text) SetEntityType 

func (e Text) SetEntityType(t EntityType)

SetEntityType sets entity type.

func (Text) SetHandle 

func (e Text) SetHandle(v *int)

SetHandle sets handles to TABLE itself and each SymbolTable.

func (Text) SetLayer 

func (e Text) SetLayer(l *table.Layer)

SetLayer sets Layer to entity.

func (Text) SetLtscale 

func (e Text) SetLtscale(v float64)

SetLtscale sets Layer to entity.

func (Text) SetOwner 

func (e Text) SetOwner(h handle.Handler)

SetOwner sets an owner.

func (*Text) String 

func (t *Text) String() string

String outputs data using default formatter.

type ThreeDFace 

type ThreeDFace struct {
	Points [][]float64
	Flag   int // 70
	// contains filtered or unexported fields
}

ThreeDFace represents 3DFACE Entity.

func New3DFace 

func New3DFace() *ThreeDFace

New3DFace creates a new ThreeDFace.

func (*ThreeDFace) BBox 

func (f *ThreeDFace) BBox() ([]float64, []float64)

func (*ThreeDFace) Format 

func (f *ThreeDFace) Format(fm format.Formatter)

Format writes data to formatter.

func (*ThreeDFace) FormatString 

func (f *ThreeDFace) FormatString(fm format.Formatter) string

FormatString outputs data using given formatter.

func (ThreeDFace) Handle 

func (e ThreeDFace) Handle() int

Handle returns a handle value of TABLE.

func (*ThreeDFace) IsEntity 

func (f *ThreeDFace) IsEntity() bool

IsEntity is for Entity interface.

func (ThreeDFace) Layer 

func (e ThreeDFace) Layer() *table.Layer

Layer returns entity's Layer.

func (ThreeDFace) SetBlockRecord 

func (e ThreeDFace) SetBlockRecord(h handle.Handler)

SetBlockRecord sets BLOCK_RECORD to entity (code 330).

func (ThreeDFace) SetEntityType 

func (e ThreeDFace) SetEntityType(t EntityType)

SetEntityType sets entity type.

func (ThreeDFace) SetHandle 

func (e ThreeDFace) SetHandle(v *int)

SetHandle sets handles to TABLE itself and each SymbolTable.

func (ThreeDFace) SetLayer 

func (e ThreeDFace) SetLayer(l *table.Layer)

SetLayer sets Layer to entity.

func (ThreeDFace) SetLtscale 

func (e ThreeDFace) SetLtscale(v float64)

SetLtscale sets Layer to entity.

func (ThreeDFace) SetOwner 

func (e ThreeDFace) SetOwner(h handle.Handler)

SetOwner sets an owner.

func (*ThreeDFace) String 

func (f *ThreeDFace) String() string

String outputs data using default formatter.

type Vertex 

type Vertex struct {
	Flag   int
	Coord  []float64
	Buldge float64
	// contains filtered or unexported fields
}

Vertex represents VERTEX Entity.

func NewDefaultVertex 

func NewDefaultVertex() *Vertex

func NewVertex 

func NewVertex(x, y, z float64) *Vertex

NewVertex creates a new Vertex.

func (*Vertex) BBox 

func (v *Vertex) BBox() ([]float64, []float64)

func (*Vertex) Format 

func (v *Vertex) Format(f format.Formatter)

Format writes data to formatter.

func (*Vertex) FormatString 

func (v *Vertex) FormatString(f format.Formatter) string

FormatString outputs data using given formatter.

func (Vertex) Handle 

func (e Vertex) Handle() int

Handle returns a handle value of TABLE.

func (*Vertex) IsEntity 

func (v *Vertex) IsEntity() bool

IsEntity is for Entity interface.

func (Vertex) Layer 

func (e Vertex) Layer() *table.Layer

Layer returns entity's Layer.

func (Vertex) SetBlockRecord 

func (e Vertex) SetBlockRecord(h handle.Handler)

SetBlockRecord sets BLOCK_RECORD to entity (code 330).

func (Vertex) SetEntityType 

func (e Vertex) SetEntityType(t EntityType)

SetEntityType sets entity type.

func (Vertex) SetHandle 

func (e Vertex) SetHandle(v *int)

SetHandle sets handles to TABLE itself and each SymbolTable.

func (Vertex) SetLayer 

func (e Vertex) SetLayer(l *table.Layer)

SetLayer sets Layer to entity.

func (Vertex) SetLtscale 

func (e Vertex) SetLtscale(v float64)

SetLtscale sets Layer to entity.

func (Vertex) SetOwner 

func (e Vertex) SetOwner(h handle.Handler)

SetOwner sets an owner.

func (*Vertex) String 

func (v *Vertex) String() string

String outputs data using default formatter.

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