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11 KiB
11 KiB
Bar Chart Props
Basic props
| Prop | Type | Description | Default value |
|---|---|---|---|
| data | Array of items | An item object represents a bar in the bar chart. It is described in the next table. | _ |
| width | number | Width of the Bar chart | width of the parent |
| height | number | Height of the Bar chart (excluding the bottom label) | 200 |
| maxValue | number | Maximum value shown in the Y axis | 200 |
| noOfSections | number | Number of sections in the Y axis | 10 |
| stepValue | number | Value of 1 step/section in the Y axis | 20 |
| stepHeight | number | Height of 1 step/section in the Y axis | 20 |
| spacing | number | Distance between 2 consecutive bars in the Bar chart | 20 |
| backgroundColor | ColorValue | Background color of the Bar chart | _ |
| disableScroll | Boolean | To disable horizontal scroll | false |
| showScrollIndicator | Boolean | To show horizontal scroll indicator | false |
Alert! These props are correlated-
- maxValue
- noOfSections
- stepValue
They must follow the relation:
maxValue = noOfSections \* stepValue
```js
So, all the three must be used together. Using any 1 or 2 of them may produce absurd results
### Item description
| Key | Value type | Description |
| ---------------------- | ---------- | ------------------------------------------------------------------------------ |
| value | number | Value of the item representing height of the bar |
| barWidth | number | Width of the bar |
| onPress | function | Function called on pressing the bar |
| disablePress | Boolean | Prop to disable the press action, defaults to false |
| frontColor | ColorValue | Color of the bar |
| sideColor | ColorValue | Color of the side view of the bar, only for 3 D |
| topColor | ColorValue | Color of the top view of the bar, only for 3 D |
| showGradient | Boolean | Prop to enable linear gradient for the bar color, defaults to false |
| gradientColor | ColorValue | Along with frontColor, this prop constitutes the 2 colors for gradient |
| initialSpacing | number | distance of the first bar from the Y axis |
| label | string | Label text appearing below the bar (under the X axis) |
| labelTextStyle | object | Style object for the label text appearing below the bar |
| labelComponent | Component | Custom label component appearing below the bar |
| topLabelComponent | Component | Custom component appearing above the bar |
| topLabelContainerStyle | object | Style object for the container of the custom component appearing above the bar |
| cappedBars | Boolean | To show caps on the top of bar |
| capThickness | number | Thickness of the bar cap |
| capColor | ColorValue | Color of the bar cap |
| capRadius | number | Border radius of the bar cap |
### Axes and rules related props
| Prop | Type | Description | Default value |
| ---------------------- | ---------- | -------------------------------------------- | ------------- |
| xAxisColor | ColorValue | X axis color | black |
| xAxisThickness | number | X axis thickness | 1 |
| yAxisColor | ColorValue | Y axis color | black |
| yAxisThickness | number | Y axis thickness | 1 |
| yAxisLabelWidth | number | Width of the Y axis Label container | 35 |
| yAxisTextStyle | object | Style object for the Y axis text style | \_ |
| showFractionalValues | Boolean | Allow fractional values for the Y axis label | false |
| hideYAxisText | Boolean | To hide Y axis label text | false |
| rulesColor | ColorValue | Color of the horizontal rules | lightgray |
| rulesThickness | number | Thickness of the horizontal rules | 1 |
| hideRules | Boolean | To hide the horizontal rules | false |
| showVerticalLines | Boolean | To show vertical lines | false |
| verticalLinesColor | ColorValue | Color of the vertical lines | lightgray |
| verticallinesThickness | number | Thickness of the vertical lines | 1 |
| verticalLinesZIndex | number | Z index of the vertical lines | -1 |
| showXAxisIndices | Boolean | To show the pointers on the X axis | false |
| xAxisIndicesHeight | number | Height of the pointers on the X axis | 2 |
| xAxisIndicesWidth | number | Width of the pointers on the X axis | 4 |
| xAxisIndicesColor | ColorValue | Color of the pointers on the X axis | black |
| showYAxisIndices | Boolean | To show the pointers on the Y axis | false |
| yAxisIndicesHeight | number | Height of the pointers on the Y axis | 2 |
| yAxisIndicesWidth | number | Width of the pointers on the Y axis | 4 |
| yAxisIndicesColor | ColorValue | Color of the pointers on the X axis | black |
| yAxisIndicesColor | Boolean | To hide axes, rules, labels altogether | false |
| rotateLabel | Boolean | To rotate the X axis labels (by 60deg) | false |
### Bar related props
| Prop | Type | Description | Default value |
| ------------- | ---------- | -------------------------------------------------------------------------- | ------------------------ |
| barWidth | number | Width of the bar | 30 |
| isThreeD | Boolean | Prop to render 3 dimensional bars | false |
| frontColor | ColorValue | Color of the bar | black for 2D, red for 3D |
| sideColor | ColorValue | Color of the side view of the bar, only for 3 D | red |
| topColor | ColorValue | Color of the top view of the bar, only for 3 D | red |
| showGradient | Boolean | Prop to enable linear gradient for the bar color | false |
| gradientColor | ColorValue | Along with frontColor, gradientColor constitutes the 2 colors for gradient | white |
| roundedTop | Boolean | To show rounded top | white |
| roundedBottom | Boolean | To show rounded bottom | white |
| activeOpacity | number | activeOpacity on pressing the bar | 0.2 |
| disablePress | Boolean | Prop to disable the bar press action | false |
#### Animation related props
| Prop | Type | Description | Default value |
| ----------------- | ------- | --------------------------------------------------------------------- | ------------- |
| isAnimated | Boolean | To show animates BarChart. Animation occurs onLoad and on valu change | false |
| animationDuration | number | Duration of the animations | 800 |
| animationEasing | Easing | Easing applied to the animation | Easing.ease |
#### Bar related props for making Capped Bar chart
| Prop | Type | Description | Default value |
| ------------ | ---------- | ------------------------------- | ------------- |
| cappedBars | Boolean | To show caps on the top of bars | false |
| capThickness | number | Thickness of the bar caps | 6 |
| capColor | ColorValue | Color of the bar caps | gray |
| capRadius | number | Border radius of the bar caps | 0 |
#### Props for horizontal BarChart
| Prop | Type | Description | Default value |
| -------------- | ------- | --------------------------------------------------------------------------------------------- | ------------- |
| horizontal | Boolean | Render horizontal BarChart | false |
| yAxisAtTop | Boolean | In horizontal BarCharts the Y axis appears at bottom by default. Set it to true for otherwise | false |
| intactTopLabel | Boolean | To rotate the top label component to make it intact with the Bars | false |