Function minMaxPoints

packages/sanddance/src/axisSelection.ts:133–156

(lines: VegaDeckGl.types.StyledLine[])

}

function minMaxPoints(lines: VegaDeckGl.types.StyledLine[]) {
    const points: number[][] = [];
    lines.forEach(line => {
        [line.sourcePosition, line.targetPosition].forEach(point => {
            points.push(point);
        });
    });
    return [0, 1].map(dim => {
        const minMax: { min: number, max: number } = { min: null, max: null };
        points.forEach(point => {
            if (minMax.max == null) {
                minMax.max = point[dim];
            } else {
                minMax.max = Math.max(minMax.max, point[dim]);
            }
            if (minMax.min == null) {
                minMax.min = point[dim];
            } else {
                minMax.min = Math.min(minMax.min, point[dim]);
            }
        });
        return minMax;
    });
}