Curve
abstract class Curve extends Shape
Extended by
Constructors
constructor
public override new Curveprops: CurveProps: Curve
Parameters
OverwritesShape.constructorProperties
absolutePosition
readonly public absolutePosition: SimpleVector2SignalCurve
A helper signal for operating on the position in world space.
Retrieving the position using this signal returns the position in world space. Similarly, setting the position using this signal transforms the new value to local space.
If the new value is a function, the position of this node will be continuously updated to always match the position returned by the function. This can be useful to "pin" the node in a specific place or to make it follow another node's position.
Unlike position, this signal is not compound - it doesn't contain
separate signals for the x and y components.
Shape.absolutePositionabsoluteRotation
readonly public absoluteRotation: SimpleSignalnumberCurve
A helper signal for operating on the rotation in world space.
Retrieving the rotation using this signal returns the rotation in world space. Similarly, setting the rotation using this signal transforms the new value to local space.
If the new value is a function, the rotation of this node will be continuously updated to always match the rotation returned by the function.
Inherited fromShape.absoluteRotationabsoluteScale
readonly public absoluteScale: SimpleVector2SignalCurve
A helper signal for operating on the scale in world space.
Retrieving the scale using this signal returns the scale in world space. Similarly, setting the scale using this signal transforms the new value to local space.
If the new value is a function, the scale of this node will be continuously updated to always match the position returned by the function.
Unlike scale, this signal is not compound - it doesn't contain
separate signals for the x and y components.
Shape.absoluteScalealignContent
readonly public alignContent: SimpleSignalFlexContentCurve
Shape.alignContentalignItems
readonly public alignItems: SimpleSignalFlexItemsCurve
Shape.alignItemsalignSelf
readonly public alignSelf: SimpleSignalFlexItemsCurve
Shape.alignSelfantialiased
readonly public antialiased: SimpleSignalbooleanCurve
Shape.antialiasedarrowSize
readonly public arrowSize: SimpleSignalnumberCurve
Controls the size of the end and start arrows.
To make the arrows visible make sure to enable startArrow and/or
endArrow.
basis
readonly public basis: SimpleSignalFlexBasisCurve
Shape.basisbottom
readonly public bottom: SimpleVector2SignalCurve
The position of the bottom edge of this node.
When set, this shortcut property will modify the node's position so that the bottom edge ends up in the given place.
When retrieved, it will return the position of the bottom edge in the parent space.
Inherited fromShape.bottombottomLeft
readonly public bottomLeft: SimpleVector2SignalCurve
The position of the bottom left corner of this node.
When set, this shortcut property will modify the node's position so that the bottom left corner ends up in the given place.
When retrieved, it will return the position of the bottom left corner in the parent space.
Inherited fromShape.bottomLeftbottomRight
readonly public bottomRight: SimpleVector2SignalCurve
The position of the bottom right corner of this node.
When set, this shortcut property will modify the node's position so that the bottom right corner ends up in the given place.
When retrieved, it will return the position of the bottom right corner in the parent space.
Inherited fromShape.bottomRightcache
readonly public cache: SimpleSignalbooleanCurve
Shape.cachecachePadding
readonly public cachePadding: SpacingSignalCurve
Controls the padding of the cached canvas used by this node.
By default, the size of the cache is determined based on the bounding box
of the node and its children. That includes effects such as stroke or
shadow. This property can be used to expand the cache area further.
Usually used to account for custom effects created by shaders.
Shape.cachePaddingchildren
readonly public children: SignalComponentChildrenNode[]CurveSignalContextComponentChildrenNode[]Curve
Shape.childrenclip
readonly public clip: SimpleSignalbooleanCurve
Shape.clipclosed
readonly public closed: SimpleSignalbooleanCurve
Whether the curve should be closed.
Closed curves have their start and end points connected.
composite
readonly public composite: SimpleSignalbooleanCurve
Shape.compositecompositeOperation
readonly public compositeOperation: SimpleSignalGlobalCompositeOperationCurve
Shape.compositeOperationcreationStack
readonly public creationStack?: string
Shape.creationStackdirection
readonly public direction: SimpleSignalFlexDirectionCurve
Shape.directionelement
public element: HTMLElement
Shape.elementend
readonly public end: SimpleSignalnumberCurve
A percentage from the start after which the curve should be clipped.
The portion of the curve that comes after the given percentage will be made invisible.
This property is usefully for animating the curve appearing on the screen.
The value of 0 means the very start of the curve (accounting for the
startOffset) while 1 means the very end (accounting for the
endOffset).
endArrow
readonly public endArrow: SimpleSignalbooleanCurve
Whether to display an arrow at the end of the visible curve.
Use arrowSize to control the size of the arrow.
endOffset
readonly public endOffset: SimpleSignalnumberCurve
The offset in pixels from the end of the curve.
This property lets you specify where along the defined curve the actual
visible portion ends. For example, setting it to 20 will make the last
20 pixels of the curve invisible.
This property is useful for trimming the curve using a fixed distance.
If you want to animate the curve appearing on the screen, use end
instead.
fill
readonly public fill: CanvasStyleSignalCurve
Shape.fillfilters
readonly public filters: FiltersSignalCurve
Shape.filtersfontFamily
readonly public fontFamily: SimpleSignalstringCurve
Shape.fontFamilyfontSize
readonly public fontSize: SimpleSignalnumberCurve
Shape.fontSizefontStyle
readonly public fontStyle: SimpleSignalstringCurve
Shape.fontStylefontWeight
readonly public fontWeight: SimpleSignalnumberCurve
Shape.fontWeightgap
readonly public gap: Vector2LengthSignalCurve
Shape.gapgrow
readonly public grow: SimpleSignalnumberCurve
Shape.growisClass
public isClass: boolean
Shape.isClassjustifyContent
readonly public justifyContent: SimpleSignalFlexContentCurve
Shape.justifyContentkey
readonly public key: string
Shape.keylayout
readonly public layout: SimpleSignalLayoutModeCurve
Shape.layoutleft
readonly public left: SimpleVector2SignalCurve
The position of the left edge of this node.
When set, this shortcut property will modify the node's position so that the left edge ends up in the given place.
When retrieved, it will return the position of the left edge in the parent space.
Inherited fromShape.leftletterSpacing
readonly public letterSpacing: SimpleSignalnumberCurve
Shape.letterSpacinglineCap
readonly public lineCap: SimpleSignalCanvasLineCapCurve
Shape.lineCaplineDash
readonly public lineDash: SimpleSignalnumber[]Curve
Shape.lineDashlineDashOffset
readonly public lineDashOffset: SimpleSignalnumberCurve
Shape.lineDashOffsetlineHeight
readonly public lineHeight: SimpleSignalLengthCurve
Shape.lineHeightlineJoin
readonly public lineJoin: SimpleSignalCanvasLineJoinCurve
Shape.lineJoinlineWidth
readonly public lineWidth: SimpleSignalnumberCurve
Shape.lineWidthmargin
readonly public margin: SpacingSignalCurve
Shape.marginmaxHeight
readonly public maxHeight: SimpleSignalLengthLimitCurve
Shape.maxHeightmaxWidth
readonly public maxWidth: SimpleSignalLengthLimitCurve
Shape.maxWidthmiddle
readonly public middle: SimpleVector2SignalCurve
The position of the center of this node.
When set, this shortcut property will modify the node's position so that the center ends up in the given place.
If the offset has not been changed, this will be the same as the
position.
When retrieved, it will return the position of the center in the parent space.
Inherited fromShape.middleminHeight
readonly public minHeight: SimpleSignalLengthLimitCurve
Shape.minHeightminWidth
readonly public minWidth: SimpleSignalLengthLimitCurve
Shape.minWidthoffset
readonly public offset: Vector2SignalCurve
Represents the offset of this node's origin.
By default, the origin of a node is located at its center. The origin serves as the pivot point when rotating and scaling a node, but it doesn't affect the placement of its children.
The value is relative to the size of this node. A value of 1 means as far
to the right/bottom as possible. Here are a few examples of offsets:
[-1, -1]- top left corner[1, -1]- top right corner[0, 1]- bottom edge[-1, 1]- bottom left corner
Shape.offsetopacity
readonly public opacity: SimpleSignalnumberCurve
Represents the opacity of this node in the range 0-1.
The value is clamped to the range 0-1.
Inherited fromShape.opacitypadding
readonly public padding: SpacingSignalCurve
Shape.paddingparent
readonly public parent: SimpleSignalnullNodevoid = ...
Shape.parentposition
readonly public position: Vector2SignalCurve
Represents the position of this node in local space of its parent.
Examples
Inherited fromShape.positionproperties
readonly public properties: RecordstringPropertyMetadataany = ...
Shape.propertiesratio
readonly public ratio: SimpleSignalnullnumberCurve
Shape.ratioright
readonly public right: SimpleVector2SignalCurve
The position of the right edge of this node.
When set, this shortcut property will modify the node's position so that the right edge ends up in the given place.
When retrieved, it will return the position of the right edge in the parent space.
Inherited fromShape.rightrotation
readonly public rotation: SimpleSignalnumberCurve
Represents the rotation (in degrees) of this node relative to its parent.
Inherited fromShape.rotationscale
readonly public scale: Vector2SignalCurve
Represents the scale of this node in local space of its parent.
Examples
Inherited fromShape.scaleshaders
readonly public shaders: SignalPossibleShaderConfigShaderConfig[]CurveSignalContextPossibleShaderConfigShaderConfig[]Curve
Shape.shadersshadowBlur
readonly public shadowBlur: SimpleSignalnumberCurve
Shape.shadowBlurshadowColor
readonly public shadowColor: ColorSignalCurve
Shape.shadowColorshadowOffset
readonly public shadowOffset: Vector2SignalCurve
Shape.shadowOffsetshrink
readonly public shrink: SimpleSignalnumberCurve
Shape.shrinksize
readonly public size: Vector2LengthSignalCurve
Represents the size of this node.
A size is a two-dimensional vector, where x represents the width, and y
represents the height.
The value of both x and y is of type Length which is
either:
number- the desired length in pixels${number}%- a string with the desired length in percents, for example'50%'null- an automatic length
When retrieving the size, all units are converted to pixels, using the
current state of the layout. For example, retrieving the width set to
'50%', while the parent has a width of 200px will result in the number
100 being returned.
When the node is not part of the layout, setting its size using percents refers to the size of the entire scene.
Examples
Inherited fromShape.sizeskew
readonly public skew: Vector2SignalCurve
Represents the skew of this node in local space of its parent.
Examples
Inherited fromShape.skewstart
readonly public start: SimpleSignalnumberCurve
A percentage from the start before which the curve should be clipped.
The portion of the curve that comes before the given percentage will be made invisible.
This property is usefully for animating the curve appearing on the screen.
The value of 0 means the very start of the curve (accounting for the
startOffset) while 1 means the very end (accounting for the
endOffset).
startArrow
readonly public startArrow: SimpleSignalbooleanCurve
Whether to display an arrow at the start of the visible curve.
Use arrowSize to control the size of the arrow.
startOffset
readonly public startOffset: SimpleSignalnumberCurve
The offset in pixels from the start of the curve.
This property lets you specify where along the defined curve the actual
visible portion starts. For example, setting it to 20 will make the first
20 pixels of the curve invisible.
This property is useful for trimming the curve using a fixed distance.
If you want to animate the curve appearing on the screen, use start
instead.
stroke
readonly public stroke: CanvasStyleSignalCurve
Shape.strokestrokeFirst
readonly public strokeFirst: SimpleSignalbooleanCurve
Shape.strokeFirststyles
public styles: CSSStyleDeclaration
Shape.stylestextAlign
readonly public textAlign: SimpleSignalCanvasTextAlignCurve
Shape.textAligntextDirection
readonly public textDirection: SimpleSignalCanvasDirectionCurve
Shape.textDirectiontextWrap
readonly public textWrap: SimpleSignalTextWrapCurve
Shape.textWraptop
readonly public top: SimpleVector2SignalCurve
The position of the top edge of this node.
When set, this shortcut property will modify the node's position so that the top edge ends up in the given place.
When retrieved, it will return the position of the top edge in the parent space.
Inherited fromShape.toptopLeft
readonly public topLeft: SimpleVector2SignalCurve
The position of the top left corner of this node.
When set, this shortcut property will modify the node's position so that the top left corner ends up in the given place.
When retrieved, it will return the position of the top left corner in the parent space.
Inherited fromShape.topLefttopRight
readonly public topRight: SimpleVector2SignalCurve
The position of the top right corner of this node.
When set, this shortcut property will modify the node's position so that the top right corner ends up in the given place.
When retrieved, it will return the position of the top right corner in the parent space.
Inherited fromShape.topRightwrap
readonly public wrap: SimpleSignalFlexWrapCurve
Shape.wrapzIndex
readonly public zIndex: SimpleSignalnumberCurve
Shape.zIndexAccessors
columnGap
public get columnGap(): SignalLengthnumberthisSignalContextLengthnumberthis
Shape.columnGapheight
public get height(): SignalLengthnumberthisSignalContextLengthnumberthis
Shape.heightrowGap
public get rowGap(): SignalLengthnumberthisSignalContextLengthnumberthis
Shape.rowGapwidth
public get width(): SignalLengthnumberthisSignalContextLengthnumberthis
Shape.widthx
public get x(): SimpleSignalnumberthis
Shape.xy
public get y(): SimpleSignalnumberthis
Shape.yMethods
[iterator]
public [iterator](): Generatorkey: stringmeta: PropertyMetadataanysignal: SimpleSignalanyvoidvoidunknown
Shape.[iterator]absoluteOpacity
public absoluteOpacity(): number
Shape.absoluteOpacityadd
public addnode: ComponentChildren: Curve
Add the given node(s) as the children of this node.
The nodes will be appended at the end of the children list.
Examples
Parameters
node: ComponentChildrenA node or an array of nodes to append.
Shape.addanchorPosition
public anchorPosition(): Vector2
Shape.anchorPositionapplyState
public applyStatestate: NodeStateduration: numbertiming?: TimingFunction: ThreadGenerator
Apply the given state to the node, setting all matching signal values to the provided values.
Parameters
Inherited fromShape.applyStatearcLength
public arcLength(): number
The visible arc length of this curve.
This arc length accounts for both the offset and the start and
end properties.
baseArcLength
public baseArcLength(): number
The base arc length of this curve.
This is the entire length of this curve, not accounting for
the offsets.
cacheBBox
public cacheBBox(): BBox
Get a bounding box for the contents rendered by this node as well as its children.
Inherited fromShape.cacheBBoxchildAs
Get the nth children cast to the specified type.
Type Parameters
Parameters
index: numberThe index of the child to retrieve.
Shape.childAschildrenAs
Get the children array cast to the specified type.
Type Parameters
Inherited fromShape.childrenAsclone
public clonecustomProps: NodeState = {}: Curve
Create a copy of this node.
Parameters
customProps: NodeState = {}Properties to override.
Shape.clonecompletion
public completion(): number
The percentage of the curve that's currently visible.
The returned value is the ratio between the visible length (as defined by
start and end) and the offset length of the curve.
compositeToLocal
public compositeToLocal(): DOMMatrix
Shape.compositeToLocalcompositeToWorld
public compositeToWorld(): DOMMatrix
A matrix mapping composite space to world space.
Certain effects such as blur and shadows ignore the current transformation. This matrix can be used to transform their parameters so that the effect appears relative to the closest composite root.
Inherited fromShape.compositeToWorldcomputedPosition
public computedPosition(): Vector2
Shape.computedPositiondispose
public dispose(): void
Prepare this node to be disposed of.
This method is called automatically when a scene is refreshed. It will be called even if the node is not currently attached to the tree.
The goal of this method is to clean any external references to allow the node to be garbage collected.
Inherited fromShape.disposedistanceToPercentage
public distanceToPercentagevalue: number: number
Convert a distance along the curve to a percentage.
The distance should be given in relation to the full curve, not
accounting for startOffset and endOffset.
Parameters
value: numberThe distance along the curve.
drawOverlay
public drawOverlaycontext: CanvasRenderingContext2Dmatrix: DOMMatrix: void
Draw an overlay for this node.
The overlay for the currently inspected node is displayed on top of the canvas.
The provided context is in screen space. The local-to-screen matrix can be used to transform all shapes that need to be displayed. This approach allows to keep the line widths and gizmo sizes consistent, no matter how zoomed-in the view is.
Parameters
context: CanvasRenderingContext2DThe context to draw with.
matrix: DOMMatrixA local-to-screen matrix.
Shape.drawOverlayfindAll
Find all descendants of this node that match the given predicate.
Type Parameters
Parameters
Inherited fromShape.findAllfindAncestor
Find the closest ancestor of this node that matches the given predicate.
Type Parameters
Parameters
Inherited fromShape.findAncestorfindFirst
Find the first descendant of this node that matches the given predicate.
Type Parameters
Parameters
Inherited fromShape.findFirstfindLast
Find the last descendant of this node that matches the given predicate.
Type Parameters
Parameters
Inherited fromShape.findLastgetOriginDelta
Parameters
Inherited fromShape.getOriginDeltagetPointAtPercentage
public getPointAtPercentagevalue: number: CurvePoint
Parameters
value: number
getState
public getState(): NodeState
Return a snapshot of the node's current signal values.
This method will calculate the values of any reactive properties of the node at the time the method is called.
Inherited fromShape.getStatehit
Try to find a node intersecting the given position.
Parameters
Inherited fromShape.hitinsert
public insertnode: ComponentChildrenindex: number = 0: Curve
Insert the given node(s) at the specified index in the children list.
Examples
Parameters
node: ComponentChildrenA node or an array of nodes to insert.
index: number = 0An index at which to insert the node(s).
Shape.insertinstantiate
Create an instance of this node's class.
Parameters
Inherited fromShape.instantiateisLayoutRoot
public isLayoutRoot(): boolean
Shape.isLayoutRootlayoutEnabled
public layoutEnabled(): boolean
Get the resolved layout mode of this node.
When the mode is null, its value will be inherited from the parent.
Use layout to get the raw mode set for this node (without
inheritance).
Shape.layoutEnabledlocalToParent
public localToParent(): DOMMatrix
Get the local-to-parent matrix for this node.
This matrix transforms vectors from local space of this node to local space of this node's parent.
Inherited fromShape.localToParentlocalToWorld
public localToWorld(): DOMMatrix
Get the local-to-world matrix for this node.
This matrix transforms vectors from local space of this node to world space.
Examples
Inherited fromShape.localToWorldlockSize
public lockSize(): void
Shape.lockSizemove
Rearrange this node in relation to its siblings.
Children are rendered starting from the beginning of the children list. We can change the rendering order by rearranging said list.
A positive by arguments move the node up (it will be rendered on top of
the elements it has passed). Negative values move it down.
Parameters
by: number = 1Number of places by which the node should be moved.
Shape.movemoveAbove
public moveAbovenode: NodedirectlyAbove: boolean = false: Curve
Move the node above the provided node in the parent's layout.
The node will be moved above the provided node and from then on will be rendered on top of it. By default, if the node is already positioned higher than the sibling node, it will not get moved.
Parameters
node: NodeThe sibling node below which to move.
directlyAbove: boolean = falseWhether the node should be positioned directly above the sibling. When true, will move the node even if it is already positioned above the sibling.
Shape.moveAbovemoveBelow
public moveBelownode: NodedirectlyBelow: boolean = false: Curve
Move the node below the provided node in the parent's layout.
The node will be moved below the provided node and from then on will be rendered below it. By default, if the node is already positioned lower than the sibling node, it will not get moved.
Parameters
node: NodeThe sibling node below which to move.
directlyBelow: boolean = falseWhether the node should be positioned directly below the sibling. When true, will move the node even if it is already positioned below the sibling.
Shape.moveBelowmoveDown
public moveDown(): Curve
Move the node down in relation to its siblings.
The node will exchange places with the sibling right below it (if any) and from then on will be rendered under it.
Inherited fromShape.moveDownmoveOffset
Update the offset of this node and adjust the position to keep it in the same place.
Parameters
Inherited fromShape.moveOffsetmoveTo
Move the node to the provided position relative to its siblings.
If the node is getting moved to a lower position, it will be placed below the sibling that's currently at the provided index (if any). If the node is getting moved to a higher position, it will be placed above the sibling that's currently at the provided index (if any).
Parameters
index: numberThe index to move the node to.
Shape.moveTomoveToBottom
public moveToBottom(): Curve
Move the node to the bottom in relation to its siblings.
The node will be placed at the beginning of the children list and from then on will be rendered below all of its siblings.
Inherited fromShape.moveToBottommoveToTop
public moveToTop(): Curve
Move the node to the top in relation to its siblings.
The node will be placed at the end of the children list and from then on will be rendered on top of all of its siblings.
Inherited fromShape.moveToTopmoveUp
public moveUp(): Curve
Move the node up in relation to its siblings.
The node will exchange places with the sibling right above it (if any) and from then on will be rendered on top of it.
Inherited fromShape.moveUpoffsetArcLength
public offsetArcLength(): number
The offset arc length of this curve.
This is the length of the curve that accounts for
the offsets.
parentAs
Get the parent cast to the specified type.
Type Parameters
Inherited fromShape.parentAspeekChildren
public peekChildren(): readonly Node[]
Get the current children of this node.
Unlike children, this method does not have any side effects.
It does not register the children signal as a dependency, and it does not
spawn any children. It can be used to safely retrieve the current state of
the scene graph for debugging purposes.
Shape.peekChildrenpercentageToDistance
public percentageToDistancevalue: number: number
Convert a percentage along the curve to a distance.
The returned distance is given in relation to the full curve, not
accounting for startOffset and endOffset.
Parameters
value: numberThe percentage along the curve.
profile
abstract public profile(): CurveProfile
reactiveClone
public reactiveClonecustomProps: NodeState = {}: Curve
Create a reactive copy of this node.
A reactive copy has all its properties dynamically updated to match the source node.
Parameters
customProps: NodeState = {}Properties to override.
Shape.reactiveClonereleaseSize
public releaseSize(): void
Shape.releaseSizeremove
public remove(): Curve
Remove this node from the tree.
Inherited fromShape.removeremoveChildren
public removeChildren(): void
Remove all children of this node.
Inherited fromShape.removeChildrenrender
public rendercontext: CanvasRenderingContext2D: Promisevoid
Render this node onto the given canvas.
Parameters
context: CanvasRenderingContext2DThe context to draw with.
Shape.renderreparent
Change the parent of this node while keeping the absolute transform.
After performing this operation, the node will stay in the same place visually, but its parent will be changed.
Parameters
Inherited fromShape.reparentrestore
public restore(): void
public restoreduration: numbertiming?: TimingFunction: ThreadGenerator
Restore the node to its last saved state.
This method can be used together with the save method to restore a
node to a previously saved state. Restoring a node to a previous state
removes that state from the state stack.
Examples
Inherited fromShape.restoreripple
public rippleduration: number = 1: GeneratorvoidThreadGeneratorPromiseanyPromisableanyvoidany
Parameters
duration: number = 1
Shape.ripplesave
public save(): void
Push a snapshot of the node's current state onto the node's state stack.
This method can be used together with the restore method to save a
node's current state and later restore it. It is possible to store more
than one state by calling save method multiple times.
Shape.savesnapshotClone
public snapshotClonecustomProps: NodeState = {}: Curve
Create a copy of this node.
Unlike clone, a snapshot clone calculates any reactive properties
at the moment of cloning and passes the raw values to the copy.
Parameters
customProps: NodeState = {}Properties to override.
Shape.snapshotClonetoPromise
Wait for any asynchronous resources that this node or its children have.
Certain resources like images are always loaded asynchronously. Awaiting this method makes sure that all such resources are done loading before continuing the animation.
Inherited fromShape.toPromiseview
public view(): View2D
Shape.viewworldToLocal
public worldToLocal(): DOMMatrix
Get the world-to-local matrix for this node.
This matrix transforms vectors from world space to local space of this node.
Examples
Inherited fromShape.worldToLocalworldToParent
public worldToParent(): DOMMatrix
Get the world-to-parent matrix for this node.
This matrix transforms vectors from world space to local space of this node's parent.
Inherited fromShape.worldToParent