[Bug] The precision issue of stack data calculation in waterfall chart.

[xiaoluoHe]

Version

1.2.0

Link to Minimal Reproduction

none

Steps to Reproduce

const spec = {
    "type": "waterfall",
    "theme": {
        "background": "rgba(0,0,0,0)"
    },
    "color": [
        "#f76964",
        "#34c724",
        "#3370ff"
    ],
    "animation": false,
    "padding": 0,
    "data": {
        "id": "waterfallData",
        "values": [
            {
                "x": "张三",
                "y": 34,
                "abf71c0e-c5f9-461c-b000-dc22970f45b5-originData": "张三"
            },
            {
                "x": "王武",
                "y": -22.12,
                "abf71c0e-c5f9-461c-b000-dc22970f45b5-originData": "王武"
            },
            {
                "x": "赵六",
                "y": 23,
                "abf71c0e-c5f9-461c-b000-dc22970f45b5-originData": "赵六"
            },
            {
                "x": "（空）",
                "y": null,
                "abf71c0e-c5f9-461c-b000-dc22970f45b5-originData": null
            }
        ]
    },
    "height": 312,
    "width": 500,
    "barMaxWidth": 48,
    "barMinWidth": 8,
    "xField": "x",
    "yField": "y",
    "legends": {
        "visible": true,
        "interactive": true,
        "orient": "bottom",
        "position": "middle",
        "padding": {
            "top": 12
        },
        "maxRow": 1,
        "pager": {
            "padding": 0,
            "space": 0,
            "animation": false,
            "handler": {
                "space": 4,
                "preShape": "",
                "nextShape": "",
                "style": {
                    "fill": "#8F959E",
                    "size": 7
                },
                "state": {
                    "hover": {
                        "fill": "#336DF4"
                    },
                    "disable": {
                        "fill": "#BBBFC4"
                    }
                }
            },
            "textStyle": {
                "fill": "#8F959E",
                "fontSize": 12,
                "lineHeight": 20
            }
        },
        "item": {
            "spaceCol": 16,
            "spaceRow": 4,
            "background": {
                "visible": false
            },
            "label": {
                "style": {
                    "fontSize": 12,
                    "lineHeight": 20,
                    "maxLineWidth": 102.96000000000001,
                    "fill": "#646A73"
                }
            },
            "shape": {
                "space": 2,
                "style": {
                    "symbolType": "circle",
                    "size": 8
                }
            }
        }
    },
    "crosshair": {
        "trigger": "hover"
    },
    "bar": {
        "style": {
            "cornerRadius": [
                2,
                2,
                0,
                0
            ],
            "cursor": "pointer"
        },
        "state": {
            "hover": {
                "stroke": "#3370FF",
                "lineWidth": 1
            }
        }
    },
    "region": [
        {
            "style": {
                "cursor": "pointer"
            }
        }
    ],
    "axes": [
        {
            "orient": "left",
            "expand": {
                "max": 0.2
            },
            "title": {
                "text": "浮点数",
                "visible": true,
                "style": {
                    "fill": "#646A73",
                    "fontSize": 12,
                    "lineHeight": 20,
                    "maxLineWidth": 234
                },
                "space": 8
            },
            "label": {
                "visible": true,
                "space": 8,
                "style": {
                    "fill": "#646A73",
                    "fontSize": 12,
                    "lineHeight": 20,
                    "maxLineWidth": 165
                }
            },
            "grid": {
                "style": {
                    "lineDash": [
                        3,
                        3
                    ]
                }
            }
        },
        {
            "orient": "bottom",
            "sampling": false,
            "title": {
                "text": "文本",
                "visible": false,
                "style": {
                    "fill": "#646A73",
                    "fontSize": 12,
                    "lineHeight": 20,
                    "maxLineWidth": 335
                },
                "space": 4
            },
            "label": {
                "visible": true,
                "autoRotate": true,
                "autoHide": false,
                "autoRotateAngle": [
                    0,
                    45
                ],
                "space": 6,
                "style": {
                    "fill": "#646A73",
                    "fontSize": 12,
                    "lineHeight": 20,
                    "maxLineWidth": 202.8
                }
            }
        }
    ],
    "total": {},
    "tooltip": {
        "visible": true,
        "mark": {
            "content": {
                "shapeType": "circle"
            }
        },
        "dimension": {
            "content": {
                "shapeType": "circle"
            }
        },
        "minWidth": 120,
        "style": {
            "spaceRow": 2,
            "keyLabel": {
                "lineHeight": 20,
                "fontSize": 12,
                "fontColor": "#646A73",
                "textAlign": "left"
            },
            "valueLabel": {
                "lineHeight": 20,
                "fontSize": 12,
                "fontColor": "#646A73"
            },
            "titleLabel": {
                "fontSize": 12,
                "lineHeight": 20,
                "fontWeight": 400,
                "fontColor": "#1F2329"
            },
            "panel": {
                "padding": {
                    "top": 10,
                    "bottom": 10,
                    "left": 12,
                    "right": 12
                },
                "border": {
                    "color": "#EFF0F1",
                    "width": 1,
                    "radius": 6
                },
                "shadow": {
                    "x": 0,
                    "y": 4,
                    "blur": 16,
                    "spread": 4,
                    "color": "#1F232908"
                }
            },
            "shape": {
                "size": 8,
                "spacing": 5
            }
        }
    },
    "stackLabel": {
        "visible": true,
        "offset": 2,
        "position": "max",
        "smartInvert": {
            "contrastRatiosThreshold": 2
        },
        "style": {
            "fontSize": 12,
            "lineHeight": 20,
            "fontWeight": 700,
            "fontFamily": "DIN Alternate",
            "stroke": "",
            "textAlign": "center"
        }
    },
    "leaderLine": {
        "visible": false
    },
    "dataZoom": []
}

const vchart = new VChart(spec, { dom: CONTAINER_ID });
vchart.renderAsync();

// Just for the convenience of console debugging, DO NOT COPY!
window['vchart'] = vchart;

Current Behavior

Expected Behavior

the correct value of label should be 23

Environment

- OS:
- Browser:
- Framework:

Any additional comments?

No response