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TriangleMatrixMixin

Auto-generated @jbrowse/mobx-state-tree API for the current JBrowse release — see pluggable elements for concepts. Built into JBrowse core. View source.

#crossCuttingMixin A matrix drawn as a triangle over the view's axis (Hi-C, LD): the fetched payload (rpcData), the canvas box (canvasWidth, matrixHeight under the matrixTop hook), the rotate-and-squash transform and its inverse (cellToScreen, screenToCell), the frame the marks read (triangleFrame), the one-cell region map and canvas-wide block the mark backend draws (matrixRegions, matrixBlocks), and the squashToHeight slot. Composes after TrackHeightMixin, GlobalFetchMixin and LegendMixin

Volatiles

MemberDescription
rpcData
rpcData: null as D | null

Getters

MemberDescription
squashToHeight
boolean
matrixTop
number		Overridable hook (default 0): px reserved above the matrix.
canvasWidth
number		The canvas spans the scrolled content, boundary padding included.
viewTransform
{ viewScale: number; viewOffsetX: number; }
matrixRegions
ReadonlyMap<number, D>		The one payload under key 0, absent until the fetch lands. An empty matrix keeps the key: the cleared canvas is its picture.
matrixHeight
number
matrixBlocks
RenderBlock[]
yScalar
number		The squash takes the content's base, without the boundary padding a scroll past either end adds.
triangleTransform
{ yScalar: number; yOffsetPx: number; viewScale: number; viewOffsetX: number; }
triangleFrame
TriangleFrame

Methods

MemberDescription
svgLegendWidth
() => number		The export parks the key beside the matrix, which fills its band.
cellToScreen
(x: number, y: number) => { x: number; y: number; }		Pre-rotation cell coordinates to display px.
screenToCell
(x: number, y: number) => { x: number; y: number; }		The exact inverse of cellToScreen.

Actions

MemberDescription
setRpcData
(data: D) => void
setSquashToHeight
(value: boolean) => void