Function subPixelOpt

src/component/axis/axisBreakHelperImpl.ts:216–227

(brkCoord: number)

        // Apply `subPixelOptimizeLine` for alignning with break ticks.
        function subPixelOpt(brkCoord: number): number {
            const pBrk: number[] = [];
            const dummyP: number[] = [];
            pBrk[dimBrk] = dummyP[dimBrk] = brkCoord;
            pBrk[dimZigzag] = coordSysRect[XY[dimZigzag]];
            dummyP[dimZigzag] = zigzagCoordMax;
            const dummyShape = {x1: pBrk[0], y1: pBrk[1], x2: dummyP[0], y2: dummyP[1]};
            subPixelOptimizeLine(dummyShape, dummyShape, {lineWidth: 1});
            pBrk[0] = dummyShape.x1;
            pBrk[1] = dummyShape.y1;
            return pBrk[dimBrk];
        }
        startCoord = subPixelOpt(startCoord);
        endCoord = subPixelOpt(endCoord);