박영식 홈페이지

막대차트를 그리다 보면, width가 chs만으로 조절이 안 될 때가 있다. 4번째 그림 옆에 width가 계산되는 식이 나와 있다. 이런 계산을 무시하고 싶다면, chbh옵션을 a로 줘서 자동적으로 전체 width에 맞게 막대의 굵기를 설정해 주면 된다. 슬림하고, 보기 좋은 막대를 그리기 위해선 계산이 필요하다. 역시 고통이 따르는 것이다.

Description Example

Description	Example
This chart uses the `a` value to resize values automatically. The first chart specifies no group spacing, so groups are not apparent. The second chart adds some spacing (15 pixels) between groups.	`chbh=a` `chbh=a,5,15`
This chart uses the `r` value to specify sizes relative to the bar width. In this chart, spacing between bars is 0.5x bar width, and between groups is 1.5x bar width.	`chbh=r,0.5,1.5`
The first chart has five values in each series, but the chart is too small to hold all the bars with default values: 10 * 23 pixels for bars + 5 * 4 pixels for spacing + 4 * 8 pixels for group spacing 282 pixels -- More than the 190 pixel chart width ...so some bars are clipped. The second chart specifies absolute bar and spacing values to fit all bars in the chart.	`chbh` omitted `chs=190x125` two series, five values/series `chbh=10,5,10`

This chart uses the a value to resize values automatically.

The first chart specifies no group spacing, so groups are not apparent. The second chart adds some spacing (15 pixels) between groups.

Vertical grouped bar chart in blue and black, bars and spaces are automatically sized

chbh=a

chbh=a,5,15

This chart uses the r value to specify sizes relative to the bar width. In this chart, spacing between bars is 0.5x bar width, and between groups is 1.5x bar width.

Vertical grouped bar chart in blue and black, bars are automatically sized, spaces expressed as percentage of chart width

chbh=r,0.5,1.5

The first chart has five values in each series, but the chart is too small to hold all the bars with default values:

10 * 23 pixels for bars +
5 * 4 pixels for spacing +
4 * 8 pixels for group spacing
282 pixels -- More than the 190 pixel chart width

...so some bars are clipped.

The second chart specifies absolute bar and spacing values to fit all bars in the chart.

Vertical grouped bar chart in blue and black, bars have the default width

chbh omitted
chs=190x125
two series, five values/series

Vertical grouped bar chart in blue and black, bars are automatically sized

chbh=10,5,10

[구글차트] Bar width and spacing

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