Protected _shadingAdd point or array of points to the series.
Object itself for fluent interface
Add callback function to be triggered when specified event is fired.
// Example syntax
object.addEventListener('click', (event) => {
console.log(event)
})
Some classes also report extra information about the interacted object with the second parameter:
// Most series share information about interacted data point
series.addEventListener('click', (event, info) => {
console.log(info)
})
Optional third parameter allows registering event handlers that will automatically remove themselves after first trigger:
// Example this listener will only fire once
object.addEventListener('click', (event) => {})
Each class has its own list of supported events.
Some events are from HTML standard (click, pointerdown, etc.),
while others are own events from LightningChart JS (dispose, resize, etc.)
To find what events are available, you can try following:
TypeScript enabled, just write addEventListener and see what possible event types the IDE suggests. These APIs are strongly typed, and even the callback event will be correctly typed.K type parameter extends.Callback function that is triggered when event is fired.
Optional options: LCJSAddEventListenerOptionsOptional extra configuration options.
Attach object to an legendBox entry
Series itself for fluent interface
Object which has to be attached
Flag that indicates whether the Attachable should be hidden or not, when its respective Entry is clicked.
By default, entries are assigned a smooth looking gradient based on the component color. If this flag is true, then this is skipped, and exact component solid fill is used instead.
Clear all previously pushed data points from the series.
// Example usage
LineSeries.clear()
Object itself for fluent interface.
Permanently destroy the component.
To fully allow Garbage-Collection to free the resources used by the component, make sure to remove any references to the component and its children in application code.
let chart = ...ChartXY()
let axisX = chart.getDefaultAxisX()
// Dispose Chart, and remove all references so that they can be garbage-collected.
chart.dispose()
chart = undefined
axisX = undefined
Object itself for fluent interface
Get whether series is taken into account with automatic scrolling and fitting of attached axes.
By default, this is true for all series.
true default, axes will take series into account in scrolling and fitting operations.
false, axes will ignore series boundaries.
Beta
Get override behavior for when this series is formatted to be displayed by a cursor.
Override callback or undefined
Introduced in v6.0.0, the state and definition of this API is not finalized. It may change in future versions without regard to backwards compatibility if there is significant cause from user feedback.
Get theme effect enabled on component or disabled.
A theme can specify an Effect to add extra visual oomph to chart applications, like Glow effects around data or other components.
Whether this effect is drawn above a particular component can be configured using the setEffect method.
// Example, disable theme effect from a particular component.
Component.setEffect(false)
For the most part, theme effects are enabled by default on most components.
Theme effect is configured with effect property.
Boolean that describes whether drawing the theme effect is enabled around the component or not.
Get boolean flag that is true when a Pointer device is over the chart component.
In order for this method to work, the components pointer event tracking must be enabled (getPointerEvents)
Boolean
Remove event listener added using addEventListener.
The expected argument should be the exact same callback function that was supplied using addEventListener:
// Basic example syntax
const listener = () => {}
obj.addEventListener('click', listener)
obj.removeEventListener('click', listener)
// Basic boilerplate of custom interaction when user drags on an object
obj.addEventListener('pointerdown', (eventDown) => {
let prevCoord = eventDown
const handlePointerMove: LCJSInteractionEventListener<'pointermove'> = (eventMove) => {
const delta = { x: eventMove.clientX - prevCoord.clientX, y: eventMove.clientY - prevCoord.clientY }
prevCoord = eventMove
console.log(delta, eventMove.clientX, eventMove.clientY)
}
const handlePointerUp: LCJSInteractionEventListener<'pointerup'> = (eventUp) => {
window.removeEventListener('pointermove', handlePointerMove)
window.removeEventListener('pointerup', handlePointerUp)
}
window.addEventListener('pointermove', handlePointerMove)
window.addEventListener('pointerup', handlePointerUp)
})
Listener that was added using addEventListener.
Set component highlight animations enabled or not. For most components this is enabled by default.
// Example usage, disable highlight animations.
component.setAnimationHighlight(false)
Object itself
Animation enabled?
Set whether series is taken into account with automatic scrolling and fitting of attached axes.
By default, this is true for all series.
By setting this to false, any series can be removed from axis scrolling/fitting.
// Example syntax, remove series from automatic scrolling / fitting.
LineSeries.setAutoScrollingEnabled(false)
Object itself for fluent interface.
true default, axes will take series into account in scrolling and fitting operations.
false, axes will ignore series boundaries.
Set Color Shading Style for series.
Shading style changes the visual style of the rendering. See ColorShadingStyles for available shading styles.
Use Simple color shading style:
series3D.setShadingStyle(new ColorShadingStyles.Simple())
Use Phong color shading style:
series3D.setShadingStyle(new ColorShadingStyles.Phong())
Configuring specular highlight for Phong shading style:
series3D.setShadingStyle(new ColorShadingStyles.Phong({
specularReflection: 0.5,
specularColor: ColorRGBA(255, 255, 255)
}))
Object itself for fluent interface.
Color shading style to use for this series.
Configure whether cursors should pick on this particular series or not.
// Example, prevent chart auto cursor from snapping to a series.
LineSeries.setCursorEnabled(false)
Related API:
Beta
Set override behavior for when this series is formatted to be displayed by a cursor. This can be used to alter and expand on cursor formatting done for a specific series, either by the library's default cursor formatters or even the users own cursor formatters defined on chart level.
// Example syntax, add extra row to display a custom data property
series.setCursorFormattingOverride((hit, before) => {
if (!isHitSampleXY(hit)) return before
const customPropertyValue = data[hit.iSample].customProperty
return [...before, ['ASD', '', customPropertyValue.toFixed(3)]]
})
To use this with users own cursor formatters, you can use useCursorFormatterSeriesOverride:
// Example syntax, define custom cursor formatting with support for series overrides
chart.setCursorFormatting((_, __, hits) => {
return [
[hits[0].axisX.formatValue(hits[0].x)],
...hits.map((hit) => useCursorFormatterSeriesOverride(hit, [['Y:', '', hit.axisY.formatValue(hit.y)]])).flat(),
]
})
Object itself.
Introduced in v6.0.0, the state and definition of this API is not finalized. It may change in future versions without regard to backwards compatibility if there is significant cause from user feedback.
Override callback or undefined
Set 3D depth test enabled for this series.
By default this is enabled, meaning that any series that is rendered after this series and is behind this series will not be rendered.
Can be disabled to alter 3D rendering behavior.
// Example syntax, disable depth test.
pointSeries3D.setDepthTestEnabled(false)
Object itself for fluent interface.
Depth test enabled?
Set theme effect enabled on component or disabled.
A theme can specify an Effect to add extra visual oomph to chart applications, like Glow effects around data or other components.
Whether this effect is drawn above a particular component can be configured using the setEffect method.
// Example, disable theme effect from a particular component.
Component.setEffect(false)
For the most part, theme effects are enabled by default on most components.
Theme effect is configured with effect property.
Object itself.
Theme effect enabled
Set state of component highlighting.
// Example usage
component.setHighlight(true)
component.setHighlight(0.5)
If highlight animations are enabled (which is true by default), the transition will be animated. As long as the component is highlighted, the active highlight intensity will be animated continuously between 0 and the configured value. Highlight animations can be disabled with setAnimationHighlight
Object itself
Boolean or number between 0 and 1, where 1 is fully highlighted.
Set highlight on mouse hover enabled or disabled.
Mouse interactions have to be enabled on the component for this to function as expected. See setPointerEvents for more information.
Object itself for fluent interface.
True if highlighting on mouse hover, false if no highlight on mouse hover
Beta
Set icon of the chart component. This is displayed in legends and by default cursor formatters.
const image = new Image()
image.src = 'image.png'
const icon = chart.engine.addCustomIcon(image)
ChartComponent.setIcon(icon)
Object itself.
Released as beta feature in v5.2.0 feature may still change according to user feedback and experiences.
Icon
Sets the name of the Component updating attached LegendBox entries
Object itself
Name of the Component
Set whether element can be target of pointer events or not.
Disabling pointer events means that the objects below this component can be interacted through it.
Object itself for fluent interface
Specifies state of mouse interactions
Set stroke style of Series.
// Example syntax, specify LineStyle
LineSeries3D.setStrokeStyle(new SolidLine({
thickness: 2,
fillStyle: new SolidFill({ color: ColorHEX('#F00') })
}))
// Example syntax, change active LineStyle
LineSeries3D.setStrokeStyle((stroke) => stroke.setThickness(5))
Use -1 thickness to enable primitive line rendering.
Primitive line rendering can have slightly better rendering performance than line with 1 thickness but the quality of line is not as good.
LineSeries3D.setStrokeStyle((solidLine) => solidLine.setThickness(-1))
Solid color for entire line series.
// Example, solid colored line.
LineSeries3D.setStrokeStyle(new SolidLine({
thickness: 2,
fillStyle: new SolidFill({ color: ColorRGBA(255, 0, 0) })
}))
To learn more about available Color factories, see ColorRGBA
Color line stroke dynamically based on x, y or z coordinate.
// Example, dynamic color by Y coordinates
LineSeries3D.setStrokeStyle(new SolidLine({
thickness: 2,
fillStyle: new PalettedFill({
lookUpProperty: 'y',
lut: new LUT({
interpolate: true,
steps: [
{ value: 0, color: ColorRGBA(255, 0, 0) },
{ value: 100, color: ColorRGBA(0, 255, 0) },
]
})
})
}))
To learn more about Color lookup tables, see LUT.
LineSeries3D has a special feature for drawing primitive line sets.
When enabled, this will draw all line segments as exactly 1 pixel thick on the monitor (regardless of distance from camera).
As a benefit, this is considerably lighter on the GPU, which is especially good with mobile and laptop devices with weak GPUs.
Primitive drawing is enabled by setting stroke thickness to -1:
// Enable primitive 3D line drawing.
LineSeries3D.setStrokeStyle((stroke) => stroke.setThickness(-1))
In 3D, line thickness is not configured exactly as pixels (since the size of pixel is not affected by distance from camera).
However, for usage convenience, you can consider line thickness in 3D as pixels just the same as 2D, even if the resulting visualization will have some differences.
Object itself for fluent interface.
Either a SolidLine object or a function, which will be used to create a new SolidLine based on current value.
Set element visibility.
Object itself.
true when element should be visible and false when element should be hidden.
Match legend entry style to reflect components own style.
By default, entries are assigned a smooth looking gradient based on the component color. If this flag is true, then this is skipped, and exact component solid fill is used instead.
Series type for visualizing a collection of
{ x, y, z }coordinates by a continuous line stroke.LineSeries3Dis optimized for massive amounts of data - here are some reference specs to give an idea:Creating LineSeries3D:
LineSeries3Dare created with addLineSeries method.Frequently used methods:
Color shading style.
By default,
LineSeries3Duses Phong shading style.This can be changed with
LineSeries3D.setColorShadingStyle(new ColorShadingStyles.Simple())Related information:
To combine line stroke with markers over each data coordinate, PointLineSeries3D can be used.