Latex
class Latex extends SVG
A node for animating equations with LaTeX.
import ...
export default makeScene2D(function* (view) {
const tex = createRef<Latex>();
view.add(<Latex ref={tex} tex="{{y=}}{{a}}{{x^2}}" fill="white" />);
yield* waitFor(0.2);
yield* tex().tex('{{y=}}{{a}}{{x^2}} + {{bx}}', 1);
yield* waitFor(0.2);
yield* tex().tex(
'{{y=}}{{\\left(}}{{a}}{{x^2}} + {{bx}}{{\\over 1}}{{\\right)}}',
1,
);
yield* waitFor(0.2);
yield* tex().tex('{{y=}}{{a}}{{x^2}}', 1);
});
Constructors
constructor
public override new Latexprops: LatexProps: Latex
Parameters
OverwritesSVG.constructorProperties
absolutePosition
readonly public absolutePosition: SimpleVector2SignalLatex
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.
SVG.absolutePositionabsoluteRotation
readonly public absoluteRotation: SimpleSignalnumberLatex
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 fromSVG.absoluteRotationabsoluteScale
readonly public absoluteScale: SimpleVector2SignalLatex
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.
SVG.absoluteScalealignContent
readonly public alignContent: SimpleSignalFlexContentLatex
SVG.alignContentalignItems
readonly public alignItems: SimpleSignalFlexItemsLatex
SVG.alignItemsalignSelf
readonly public alignSelf: SimpleSignalFlexItemsLatex
SVG.alignSelfantialiased
readonly public antialiased: SimpleSignalbooleanLatex
SVG.antialiasedbasis
readonly public basis: SimpleSignalFlexBasisLatex
SVG.basisbottom
readonly public bottom: SimpleVector2SignalLatex
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 fromSVG.bottombottomLeft
readonly public bottomLeft: SimpleVector2SignalLatex
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 fromSVG.bottomLeftbottomRight
readonly public bottomRight: SimpleVector2SignalLatex
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 fromSVG.bottomRightcache
readonly public cache: SimpleSignalbooleanLatex
SVG.cachecachePadding
readonly public cachePadding: SpacingSignalLatex
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.
SVG.cachePaddingchildren
readonly public children: SignalComponentChildrenNode[]LatexSignalContextComponentChildrenNode[]Latex
SVG.childrenclip
readonly public clip: SimpleSignalbooleanLatex
SVG.clipcomposite
readonly public composite: SimpleSignalbooleanLatex
SVG.compositecompositeOperation
readonly public compositeOperation: SimpleSignalGlobalCompositeOperationLatex
SVG.compositeOperationcreationStack
readonly public creationStack?: string
SVG.creationStackdirection
readonly public direction: SimpleSignalFlexDirectionLatex
SVG.directionelement
public element: HTMLElement
SVG.elementfill
readonly public fill: CanvasStyleSignalLatex
SVG.fillfilters
readonly public filters: FiltersSignalLatex
SVG.filtersfontFamily
readonly public fontFamily: SimpleSignalstringLatex
SVG.fontFamilyfontSize
readonly public fontSize: SimpleSignalnumberLatex
SVG.fontSizefontStyle
readonly public fontStyle: SimpleSignalstringLatex
SVG.fontStylefontWeight
readonly public fontWeight: SimpleSignalnumberLatex
SVG.fontWeightgap
readonly public gap: Vector2LengthSignalLatex
SVG.gapgrow
readonly public grow: SimpleSignalnumberLatex
SVG.growisClass
public isClass: boolean
SVG.isClassjustifyContent
readonly public justifyContent: SimpleSignalFlexContentLatex
SVG.justifyContentkey
readonly public key: string
SVG.keylayout
readonly public layout: SimpleSignalLayoutModeLatex
SVG.layoutleft
readonly public left: SimpleVector2SignalLatex
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 fromSVG.leftletterSpacing
readonly public letterSpacing: SimpleSignalnumberLatex
SVG.letterSpacinglineCap
readonly public lineCap: SimpleSignalCanvasLineCapLatex
SVG.lineCaplineDash
readonly public lineDash: SimpleSignalnumber[]Latex
SVG.lineDashlineDashOffset
readonly public lineDashOffset: SimpleSignalnumberLatex
SVG.lineDashOffsetlineHeight
readonly public lineHeight: SimpleSignalLengthLatex
SVG.lineHeightlineJoin
readonly public lineJoin: SimpleSignalCanvasLineJoinLatex
SVG.lineJoinlineWidth
readonly public lineWidth: SimpleSignalnumberLatex
SVG.lineWidthmargin
readonly public margin: SpacingSignalLatex
SVG.marginmaxHeight
readonly public maxHeight: SimpleSignalLengthLimitLatex
SVG.maxHeightmaxWidth
readonly public maxWidth: SimpleSignalLengthLimitLatex
SVG.maxWidthmiddle
readonly public middle: SimpleVector2SignalLatex
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 fromSVG.middleminHeight
readonly public minHeight: SimpleSignalLengthLimitLatex
SVG.minHeightminWidth
readonly public minWidth: SimpleSignalLengthLimitLatex
SVG.minWidthoffset
readonly public offset: Vector2SignalLatexVector2SignalContextLatex
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
SVG.offsetopacity
readonly public opacity: SimpleSignalnumberLatex
Represents the opacity of this node in the range 0-1.
The value is clamped to the range 0-1.
Inherited fromSVG.opacityoptions
readonly public options: SimpleSignalOptionListLatex
padding
readonly public padding: SpacingSignalLatex
SVG.paddingparent
readonly public parent: SimpleSignalnullNodevoid = ...
SVG.parentposition
readonly public position: Vector2SignalLatexVector2SignalContextLatex
Represents the position of this node in local space of its parent.
Examples
Inherited fromSVG.positionproperties
readonly public properties: RecordstringPropertyMetadataany = ...
SVG.propertiesratio
readonly public ratio: SimpleSignalnullnumberLatex
SVG.ratioright
readonly public right: SimpleVector2SignalLatex
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 fromSVG.rightrotation
readonly public rotation: SimpleSignalnumberLatex
Represents the rotation (in degrees) of this node relative to its parent.
Inherited fromSVG.rotationscale
readonly public scale: Vector2SignalLatexVector2SignalContextLatex
Represents the scale of this node in local space of its parent.
Examples
Inherited fromSVG.scaleshaders
readonly public shaders: SignalPossibleShaderConfigShaderConfig[]LatexSignalContextPossibleShaderConfigShaderConfig[]Latex
SVG.shadersshadowBlur
readonly public shadowBlur: SimpleSignalnumberLatex
SVG.shadowBlurshadowColor
readonly public shadowColor: ColorSignalLatex
SVG.shadowColorshadowOffset
readonly public shadowOffset: Vector2SignalLatexVector2SignalContextLatex
SVG.shadowOffsetshrink
readonly public shrink: SimpleSignalnumberLatex
SVG.shrinksize
readonly public size: Vector2LengthSignalLatex
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 fromSVG.sizeskew
readonly public skew: Vector2SignalLatexVector2SignalContextLatex
Represents the skew of this node in local space of its parent.
Examples
Inherited fromSVG.skewstroke
readonly public stroke: CanvasStyleSignalLatex
SVG.strokestrokeFirst
readonly public strokeFirst: SimpleSignalbooleanLatex
SVG.strokeFirststyles
public styles: CSSStyleDeclaration
SVG.stylessvg
readonly public svg: SimpleSignalstringLatex
SVG string to be rendered
Inherited fromSVG.svgtex
readonly public tex: Signalstringstring[]string[]LatexSignalContextstringstring[]string[]Latex
textAlign
readonly public textAlign: SimpleSignalCanvasTextAlignLatex
SVG.textAligntextDirection
readonly public textDirection: SimpleSignalCanvasDirectionLatex
SVG.textDirectiontextWrap
readonly public textWrap: SimpleSignalTextWrapLatex
SVG.textWraptop
readonly public top: SimpleVector2SignalLatex
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 fromSVG.toptopLeft
readonly public topLeft: SimpleVector2SignalLatex
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 fromSVG.topLefttopRight
readonly public topRight: SimpleVector2SignalLatex
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 fromSVG.topRightwrap
readonly public wrap: SimpleSignalFlexWrapLatex
SVG.wrapwrapper
Child to wrap all SVG node
Inherited fromSVG.wrapperzIndex
readonly public zIndex: SimpleSignalnumberLatex
SVG.zIndexAccessors
columnGap
public get columnGap(): SignalLengthnumberthisSignalContextLengthnumberthis
SVG.columnGapheight
public get height(): SignalLengthnumberthisSignalContextLengthnumberthis
SVG.heightrowGap
public get rowGap(): SignalLengthnumberthisSignalContextLengthnumberthis
SVG.rowGapwidth
public get width(): SignalLengthnumberthisSignalContextLengthnumberthis
SVG.widthx
public get x(): SimpleSignalnumberthis
SVG.xy
public get y(): SimpleSignalnumberthis
SVG.yMethods
[iterator]
public [iterator](): Generatorkey: stringmeta: PropertyMetadataanysignal: SimpleSignalanyvoidvoidunknown
SVG.[iterator]absoluteOpacity
public absoluteOpacity(): number
SVG.absoluteOpacityadd
public addnode: ComponentChildren: Latex
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.
SVG.addanchorPosition
public anchorPosition(): Vector2
SVG.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 fromSVG.applyStatecacheBBox
public cacheBBox(): BBox
Get a bounding box for the contents rendered by this node as well as its children.
Inherited fromSVG.cacheBBoxcardinalPoint
public cardinalPointorigin: OriginDirection: SimpleVector2SignalLatex
Get the cardinal point corresponding to the given origin.
Parameters
Inherited fromSVG.cardinalPointchildAs
Get the nth children cast to the specified type.
Type Parameters
Parameters
index: numberThe index of the child to retrieve.
SVG.childAschildrenAs
Get the children array cast to the specified type.
Type Parameters
Inherited fromSVG.childrenAsclone
public clonecustomProps: NodeState = {}: Latex
Create a copy of this node.
Parameters
customProps: NodeState = {}Properties to override.
SVG.clonecompositeToLocal
public compositeToLocal(): DOMMatrix
SVG.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 fromSVG.compositeToWorldcomputedPosition
public computedPosition(): Vector2
SVG.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 fromSVG.disposedrawOverlay
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.
SVG.drawOverlayfindAll
Find all descendants of this node that match the given predicate.
Type Parameters
Parameters
Inherited fromSVG.findAllfindAncestor
Find the closest ancestor of this node that matches the given predicate.
Type Parameters
Parameters
Inherited fromSVG.findAncestorfindFirst
Find the first descendant of this node that matches the given predicate.
Type Parameters
Parameters
Inherited fromSVG.findFirstfindLast
Find the last descendant of this node that matches the given predicate.
Type Parameters
Parameters
Inherited fromSVG.findLastgetChildrenById
Get all SVG nodes with the given id.
Parameters
id: stringAn id to query.
SVG.getChildrenByIdgetOriginDelta
Parameters
Inherited fromSVG.getOriginDeltagetState
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 fromSVG.getStatehit
Try to find a node intersecting the given position.
Parameters
Inherited fromSVG.hitinsert
public insertnode: ComponentChildrenindex: number = 0: Latex
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).
SVG.insertinstantiate
Create an instance of this node's class.
Parameters
Inherited fromSVG.instantiateisLayoutRoot
public isLayoutRoot(): boolean
SVG.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).
SVG.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 fromSVG.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 fromSVG.localToWorldlockSize
public lockSize(): void
SVG.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.
SVG.movemoveAbove
public moveAbovenode: NodedirectlyAbove: boolean = false: Latex
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.
SVG.moveAbovemoveBelow
public moveBelownode: NodedirectlyBelow: boolean = false: Latex
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.
SVG.moveBelowmoveDown
public moveDown(): Latex
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 fromSVG.moveDownmoveOffset
Update the offset of this node and adjust the position to keep it in the same place.
Parameters
Inherited fromSVG.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.
SVG.moveTomoveToBottom
public moveToBottom(): Latex
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 fromSVG.moveToBottommoveToTop
public moveToTop(): Latex
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 fromSVG.moveToTopmoveUp
public moveUp(): Latex
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 fromSVG.moveUpparentAs
Get the parent cast to the specified type.
Type Parameters
Inherited fromSVG.parentAsparentToWorld
public parentToWorld(): DOMMatrix
Get the parent-to-world matrix for this node.
This matrix transforms vectors from local space of this node's parent to world space.
Inherited fromSVG.parentToWorldpeekChildren
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.
SVG.peekChildrenreactiveClone
public reactiveClonecustomProps: NodeState = {}: Latex
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.
SVG.reactiveClonereleaseSize
public releaseSize(): void
SVG.releaseSizeremove
public remove(): Latex
Remove this node from the tree.
Inherited fromSVG.removeremoveChildren
public removeChildren(): Latex
Remove all children of this node.
Inherited fromSVG.removeChildrenrender
public rendercontext: CanvasRenderingContext2D: void
Render this node onto the given canvas.
Parameters
context: CanvasRenderingContext2DThe context to draw with.
SVG.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 fromSVG.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 fromSVG.restoreripple
public rippleduration: number = 1: GeneratorvoidThreadGeneratorPromiseanyPromisableanyvoidany
Parameters
duration: number = 1
SVG.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.
SVG.savesnapshotClone
public snapshotClonecustomProps: NodeState = {}: Latex
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.
SVG.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 fromSVG.toPromiseview
public view(): View2D
SVG.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 fromSVG.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 fromSVG.worldToParent