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scroll or pagination in charts

asked 2022-10-15 03:06:40 +0800

nome gravatar image nome
7 2

updated 2022-10-15 03:22:41 +0800

Hi guys.

currently, I using (stacked column chart) but I have many data to display on it. Is it possible to use scroll horizontal or pagination in this chart? appreciate your help.

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answered 2022-10-17 15:35:34 +0800

hawk gravatar image hawk
3073 1 5
http://hawkphoenix.blogsp... ZK Team

updated 2022-10-18 12:04:56 +0800

There are several ways to handle large data:

show horizontal scrollbar

give a large width and allow overflow-x:

<charts id="chart" type="line"  width="3000"/>
<style>
    .z-charts{
        overflow-x: auto !important;
    }
</style>

enable x-axis zoom

You can select a range by drag and drop to zoom in.

chart.setZoomType("x");

See https://github.com/zkoss/zkchartsessentials/blob/master/src/main/webapp/event/events.zul

load data of 1 page one time

You need to define the size of data points for 1 page.

  1. just load 1-page of data at the beginning.
  2. create 2 buttons for next and previous page
  3. when users click paging buttons, load the corresponding page of data

change x extremes range

  1. load all the data
  2. set x data range by chart.getXAxis().setExtremes(1, 10); so it only shows those points in 1~10
  3. create 2 buttons for next and previous page
  4. when users click paging buttons, change x data extremes to a different range
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if one of the solutions works for you, please accept the answer :)

hawk ( 2022-10-24 09:25:18 +0800 )edit
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Asked: 2022-10-15 03:06:40 +0800

Seen: 6 times

Last updated: Oct 18

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