Method updateDataVisualAndLayout

src/component/marker/MarkLineView.ts:395–433

(
            data: SeriesData<MarkLineModel>,
            idx: number,
            isFrom: boolean
        )

        });

        function updateDataVisualAndLayout(
            data: SeriesData<MarkLineModel>,
            idx: number,
            isFrom: boolean
        ) {
            const itemModel = data.getItemModel<MarkLineMergedItemOption>(idx);

            updateSingleMarkerEndLayout(
                data, idx, isFrom, seriesModel, api
            );

            const style = itemModel.getModel('itemStyle').getItemStyle();
            if (style.fill == null) {
                style.fill = getVisualFromData(seriesData, 'color') as ColorString;
            }

            data.setItemVisual(idx, {
                symbolKeepAspect: itemModel.get('symbolKeepAspect'),
                // `0` should be considered as a valid value, so use `retrieve2` instead of `||`
                symbolOffset: retrieve2(
                    itemModel.get('symbolOffset', true),
                    (symbolOffset as (string | number)[])[isFrom ? 0 : 1]
                ),
                symbolRotate: retrieve2(
                    itemModel.get('symbolRotate', true),
                    (symbolRotate as number[])[isFrom ? 0 : 1]
                ),
                // TODO: when 2d array is supported, it should ignore parent
                symbolSize: retrieve2(
                    itemModel.get('symbolSize'),
                    (symbolSize as number[])[isFrom ? 0 : 1]
                ),
                symbol: retrieve2(
                    itemModel.get('symbol', true),
                    (symbolType as string[])[isFrom ? 0 : 1]
                ),
                style
            });
        }

        this.markKeep(lineDraw);