A vertical line Scatter chart
Horizontal Bar chart
[documentation]. There's quite a few options for it (including a spline
mode) and there's a couple of demos for it in the download archive (hbar-vertical-line.html
and hbar-vertical-line-multiple.html
).
Vertical Line charts
are not supported natively in RGraph however they can
be achieved using the Scatter chart
(and the Horizontal Bar chart).
With the Scatter chart
, unlike the Line chart
, you can
specify the x-axis
and y-axis
coordinates and a connecting line can be shown as in the
example.
Below is the code that's necessary to achieve the Vertical Line chart
. The y-axis
labels are
specific and used to show the labels for the chart whilst an x-axis
scale is enabled to show
the magnitude of values. The maximum values are set manually - so you may want to add code
that determines these based on the data - as a normal Line chart
would.
Read the comments in the code sample below to find out more information.
This goes in the documents header:
<script src="RGraph.common.core.js"></script> <script src="RGraph.scatter.js"></script>Put this where you want the chart to show up:
<canvas id="cvs" width="400" height="550" style="float: right"> [No canvas support] </canvas>This is the code that generates the chart - it should be placed AFTER the
canvas
tag(s):
<script> // Create the Scatter chart but configure it in such a way that it has // the appearance of a vertical Line chart. One configuration option // that is used here is the X-axis scale - which can be used on any // Scatter chart instead of regular labels. new RGraph.Scatter({ id: 'cvs', data: [[76, 6.5],[34,5.5],[12,4.5],[48,3.5],[43,2.5],[14,1.5],[5,0.5]], options: { xaxis: false, xaxisScaleMax: 100, yaxisScaleMax: 7, textSize: 14, line: true, lineLinewidth: 3, backgroundGridBorder: false, backgroundGridHlines: false, backgroundGridVlinesCount: 5, yaxisLabelsSpecific: ['', 'Monday','', 'Tuesday','', 'Wednesday','', 'Thursday','', 'Friday','', 'Saturday','', 'Sunday',''], marginLeft: 100, xaxisScale: true, yaxisTickmarksCount: 14, tickmarksStyle: null } }).draw(); </script>