Function pointToDataBodyCornerFillOut

src/coord/matrix/Matrix.ts:604–621

(
    ctx: CtxPointToData,
    partialOut: (OrdinalNumber | MatrixXYLocator)[],
    dimIdx: number,
    dims: MatrixDimPair,
)

// Assume partialOut has been set to NaN outside.
// This method may fill out[0] and out[1] in one call.
function pointToDataBodyCornerFillOut(
    ctx: CtxPointToData,
    partialOut: (OrdinalNumber | MatrixXYLocator)[],
    dimIdx: number,
    dims: MatrixDimPair,
): void {
    if (ctx[XY[dimIdx]] === CtxPointToDataAreaType.outside) {
        return;
    }
    const dim = ctx[XY[dimIdx]] === CtxPointToDataAreaType.inCorner
        ? dims[XY[1 - dimIdx]] : dims[XY[dimIdx]];
    for (dim.resetLayoutIterator(_ptdLevelIt, dimIdx); _ptdLevelIt.next();) {
        if (isCoordInLayoutInfo(ctx.point[dimIdx], _ptdLevelIt.item)) {
            partialOut[dimIdx] = _ptdLevelIt.item.id[XY[dimIdx]];
            return;
        }
    }
}

function isCoordInLayoutInfo(coord: number, cell: MatrixCellLayoutInfo): boolean {
    return cell.xy <= coord && coord <= cell.xy + cell.wh;