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TriangleMatrixMixin

Auto-generated from the @jbrowse/mobx-state-tree model in the source. See the developer guide for concepts. Built into JBrowse core. View source.

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 heightMode slot. Composes after TrackHeightMixin, GlobalFetchMixin and LegendMixin

Volatiles

Member Description
rpcData
D | null

Getters

Member Description
heightMode
"fit" | "fixed"
matrixTop
number		 Overridable hook (default 0): px reserved above the matrix.
depthFraction
number		 Overridable hook (default 1): the share of the full triangle's depth the payload reaches, which a banded matrix sets below 1 so fit mode stretches its strip over the display.
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

Member Description
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

Member Description
setRpcData
(data: D) => void
setHeightMode
(mode: "fit" | "fixed") => void