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Span chart with categorical data

Simple JavaScript span chart where each column has a start and end value. Achieving by creating two series, one with the 'offset' value and other 'value'; and making the former series transparent.

Documentation Open in JSFiddle
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HTML

HTML 
<script src="https://cdn.zoomcharts-cloud.com/1/nightly/zoomcharts.js"></script>
<div id="demo"></div>

CSS

CSS 
//No CSS for this example

JavaScript

JavaScript 
chart= new FacetChart({
    "series": [
        {
            "name": "",
            "data": {
                "field": "offset"
            },
            "stack": "default",
            "style": {
                "fillColor": "transparent"
            },
            "type": "columns"
        },
        {
            "name": "Data",
            "data": {
                "field": "value"
            },
            "stack": "default",
            "style": {
                "fillColor": "#2fc32f"
            },
            "type": "columns"
        }
    ],
    "style": [],
    "container": "demo",
    "data": [
        {
            "url": "/dvsl/data/extra/span-categorical.json"
        }
    ],
    "toolbar": {
        "fullscreen": true,
        "enabled": true
    },
    "interaction": {
        "resizing": {
            "enabled": false
        }
    }
})

Data

Data 
{
    "id": "",
    "subvalues": [
        {
            "name": "Category 1",
            "value": 445,
            "offset": 30
        },
        {
            "name": "Category 2",
            "value": 210,
            "offset": 150
        },
        {
            "name": "Category 3",
            "value": 145,
            "offset": 70
        },
        {
            "name": "Category 4",
            "value": 385,
            "offset": 220
        },
        {
            "name": "Category 5",
            "value": 150,
            "offset": 20
        },
        {
            "name": "Category 6",
            "value": 150,
            "offset": 370
        }
    ]
}
Download Data