generate_dual_axis_chart

Create a dual-axis chart to compare two quantitative variables using bar and line series. Visualize trends and magnitudes across distinct y-axes for clear data analysis.

Instructions

Generate a dual-axis chart for visualizing two quantitative variables using a combination of bar and line series. Ideal for comparing trends and magnitudes across two metrics with distinct y-axes.

Input Schema

Name	Required	Description	Default
`background`	No	Chart background color (hex). Optional, defaults to white.
`chartTheme`	No	Chart theme. Optional, defaults to 'light'.
`colorField`	No	Color grouping field. Should not duplicate the dimension field.
`colors`	No	Color palette for chart elements.
`dataTable`	Yes	Input data for the dual axis chart, e.g., [{ x: '2018', gmv: 99.9, user: 1200 }].
`height`	No	Chart height. Optional, defaults to 500.
`leftYAxisHasGrid`	No	Show horizontal grid lines for the Y-axis.
`leftYAxisHasLabel`	No	Show Y-axis labels.
`leftYAxisHasTick`	No	Show Y-axis ticks.
`leftYAxisTitle`	No	Y-axis title.
`output`	No	Chart output type. Defaults to 'image'.	image
`rightYAxisHasGrid`	No
`rightYAxisHasLabel`	No
`rightYAxisHasTick`	No
`rightYAxisTitle`	No
`stackOrPercent`	No	Stacking mode: 'stack' for stacked data, 'percent' for percentage stacking. Requires 'color' field.
`subTitle`	No	Chart subtitle text.
`title`	No	Chart title text.
`titleOrient`	No	Title position in the chart.
`width`	No	Chart width. Optional, defaults to 500.
`xAxisHasGrid`	No	Show vertical grid lines for the X-axis.
`xAxisHasLabel`	No	Show X-axis labels.
`xAxisHasTick`	No	Show X-axis ticks.
`xAxisOrient`	No	X-axis position in the chart.
`xAxisTitle`	No	X-axis title.
`xField`	Yes	Dimension field. Must exist in the data.
`yField`	Yes

Input Schema (JSON Schema)

{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "additionalProperties": false,
  "properties": {
    "background": {
      "description": "Chart background color (hex). Optional, defaults to white.",
      "type": "string"
    },
    "chartTheme": {
      "description": "Chart theme. Optional, defaults to 'light'.",
      "enum": [
        "light",
        "dark"
      ],
      "type": "string"
    },
    "colorField": {
      "description": "Color grouping field. Should not duplicate the dimension field.",
      "type": "string"
    },
    "colors": {
      "anyOf": [
        {
          "items": {
            "description": "Color value",
            "type": "string"
          },
          "type": "array"
        },
        {
          "type": "null"
        }
      ],
      "description": "Color palette for chart elements."
    },
    "dataTable": {
      "description": "Input data for the dual axis chart, e.g., [{ x: '2018', gmv: 99.9, user: 1200 }].",
      "minItems": 1,
      "type": "array"
    },
    "height": {
      "description": "Chart height. Optional, defaults to 500.",
      "type": "number"
    },
    "leftYAxisHasGrid": {
      "description": "Show horizontal grid lines for the Y-axis.",
      "type": "boolean"
    },
    "leftYAxisHasLabel": {
      "description": "Show Y-axis labels.",
      "type": "boolean"
    },
    "leftYAxisHasTick": {
      "description": "Show Y-axis ticks.",
      "type": "boolean"
    },
    "leftYAxisTitle": {
      "description": "Y-axis title.",
      "type": "string"
    },
    "output": {
      "default": "image",
      "description": "Chart output type. Defaults to 'image'.",
      "enum": [
        "spec",
        "image",
        "html"
      ],
      "type": "string"
    },
    "rightYAxisHasGrid": {
      "$ref": "#/properties/leftYAxisHasGrid"
    },
    "rightYAxisHasLabel": {
      "$ref": "#/properties/leftYAxisHasLabel"
    },
    "rightYAxisHasTick": {
      "$ref": "#/properties/leftYAxisHasTick"
    },
    "rightYAxisTitle": {
      "$ref": "#/properties/leftYAxisTitle"
    },
    "stackOrPercent": {
      "description": "Stacking mode: 'stack' for stacked data, 'percent' for percentage stacking. Requires 'color' field.",
      "enum": [
        "stack",
        "percent"
      ],
      "type": "string"
    },
    "subTitle": {
      "description": "Chart subtitle text.",
      "type": "string"
    },
    "title": {
      "description": "Chart title text.",
      "type": "string"
    },
    "titleOrient": {
      "description": "Title position in the chart.",
      "enum": [
        "top",
        "left",
        "right",
        "bottom"
      ],
      "type": "string"
    },
    "width": {
      "description": "Chart width. Optional, defaults to 500.",
      "type": "number"
    },
    "xAxisHasGrid": {
      "description": "Show vertical grid lines for the X-axis.",
      "type": "boolean"
    },
    "xAxisHasLabel": {
      "description": "Show X-axis labels.",
      "type": "boolean"
    },
    "xAxisHasTick": {
      "description": "Show X-axis ticks.",
      "type": "boolean"
    },
    "xAxisOrient": {
      "description": "X-axis position in the chart.",
      "enum": [
        "bottom",
        "top"
      ],
      "type": "string"
    },
    "xAxisTitle": {
      "description": "X-axis title.",
      "type": "string"
    },
    "xField": {
      "description": "Dimension field. Must exist in the data.",
      "minLength": 1,
      "type": "string"
    },
    "yField": {
      "items": {
        "description": "Measure field. Must be numeric and exist in the data.",
        "minLength": 1,
        "type": "string"
      },
      "maxItems": 2,
      "minItems": 2,
      "type": "array"
    }
  },
  "required": [
    "dataTable",
    "xField",
    "yField"
  ],
  "type": "object"
}

vchart-mcp-server

generate_dual_axis_chart

Instructions

Input Schema

Input Schema (JSON Schema)

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