Text3D - Documentation

Usage (signatures)

board.create('text3d', [x, y, z, txt, slideopt]);

The coordinates are given as x, y, z consisting of numbers of functions and the text. If an optional 3D element slide is supplied, the text acts like a glider on that element.

Parameters

Name	Type	Attributes
`x`	NumberLike
`y`	NumberLike
`z`	NumberLike
`txt`	String \| function
`slide`	JXG.GeometryElement3D	<optional>

board.create('text3d', [F, txt, slideopt]);

Alternatively, the coordinates can be supplied as array or function returning an array. If an optional 3D element slide is supplied, the text acts like a glider on that element.

Parameters

Name	Type	Attributes
`F`	Array \| function
`txt`	String \| function
`slide`	JXG.GeometryElement3D	<optional>

Example

var bound = [-4, 6];
    var view = board.create('view3d',
        [[-4, -3], [8, 8],
        [bound, bound, bound]],
        {
            projection: 'central'
        });

    var txt1 = view.create('text3d', [[1, 2, 1], 'hello'], {
        fontSize: 20
    });

Attributes

Own

none

Inherited

gradientSecondOpacity

highlightStrokeOpacity

highlightStrokeWidth

ignoreForLabelAutoposition

Members

Own

coords

slide

(private, static) coords : Array

Description

Homogeneous coordinates of a Point3D, i.e. array of length 4: [w, x, y, z]. Usually, w=1 for finite points and w=0 for points which are infinitely far.

Type

Array

Example

p.coords;

Source

3d/text3d.js, line 57

(private, static) slide : JXG.GeometryElement3D

Description

Optional slide element, i.e. element the Point3D lives on.

Type

JXG.GeometryElement3D

Default Value

null

Example

p.slide;

Source

3d/text3d.js, line 83

Inherited

Methods

Own

normalizeCoords

setPosition

updateCoords

(private, static) F()

Function or array of functions or array of numbers defining the coordinates of the point, used in updateCoords.

Details

See

updateCoords

Source

3d/text3d.js, line 71

(static) X() → {Number}

Get x-coordinate of a 3D point.

Example

p.X();

Returns

Type: Number

Details

Source: 3d/text3d.js, line 98

(static) Y()

Get y-coordinate of a 3D point.

Example

p.Y();

Returns

Number

Details

Source: 3d/text3d.js, line 113

(static) Z()

Get z-coordinate of a 3D point.

Example

p.Z();

Returns

Number

Details

Source: 3d/text3d.js, line 128

(private, static) normalizeCoords() → {Object}

Normalize homogeneous coordinates such the the first coordinate (the w-coordinate is equal to 1 or 0)-

Example

p.normalizeCoords();

Returns

Reference to the Text3D object

Type: Object

Details

Source: 3d/text3d.js, line 217

(static) setPosition(coords, noeventopt) → {Object}

Set the position of a 3D point.

Example

p.setPosition([1, 3, 4]);

Parameters

Name	Type	Attributes	Description
`coords`	Array		3D coordinates. Either of the form [x,y,z] (Euclidean) or [w,x,y,z] (homogeneous).
`noevent`	Boolean	<optional>	If true, no events are triggered.