Tapemeasure

Element

A tape measure can be used to measure distances between points.

The two defining points of the tape measure (which is a segment) do not inherit by default the attribute visible from the segment. Otherwise the tape meassure would be inaccessible if the two points coincide and the segment is hidden.

Usage (signatures)

board.create('tapemeasure', [start, end]);

The two arrays give the initial position where the tape measure is positioned.

Parameters

Name	Type	Description
`start`	Array	`[x, y]`
`end`	Array	`[x, y]`

Example

// Create a tape measure
var p1 = board.create('point', [0,0]);
var p2 = board.create('point', [1,1]);
var p3 = board.create('point', [3,1]);
var tape = board.create('tapemeasure', [[1, 2], [4, 2]], {name:'dist'});

Attributes

Own

digits

Description: The precision of the tape measure value displayed in the optional text.
Type: Number
Default Value: 2
Source: options.js, line 9845

label

Description: Attributes for the tape measure label.
Type: Label
Source: options.js, line 9927

point1

Description: Attributes for first helper point defining the tape measure position.
Type: Point
Source: options.js, line 9855

point2

Description: Attributes for second helper point defining the tape measure position.
Type: Point
Source: options.js, line 9877

precision

Description

The precision of the tape measure value displayed in the optional text. Replaced by the attribute digits

Type

Number

Deprecated

Yes

Default Value

See

Tapemeasure#digits

Source

options.js, line 9831

rotate

Description: Text rotation in degrees.
Type: Number
Default Value: 0
Source: options.js, line 9821

ticks

Description: Attributes for the ticks of the tape measure.
Type: Ticks
Source: options.js, line 9899

withLabel

Description: Show tape measure label.
Type: Boolean
Default Value: true
Source: options.js, line 9811

withTicks

Description: Show tape measure ticks.
Type: Boolean
Default Value: true
Source: options.js, line 9801

Inherited

none

Methods

Own

Value

Value() → {Number}

Returns the length of the tape measure.

Returns

length of tape measure.

Type: Number

Details

Source: element/measure.js, line 153

Inherited

none

Throws

If the element cannot be constructed with the given parent objects an exception is thrown.
Type Exception

Details

Type: JXG.Segment
Source: element/measure.js, line 46