by Torstein Hønsi
Highcharts 3D is a Highcharts module providing limited 3D support to charts. It currently allows to create 3D Column charts, 3D Pie charts and 3D Scatter charts.
To be able to use Highcharts 3D you first have to load Highcharts as usual and load the additional 3D plugin module:
<script src="/https://code.highcharts.com/highcharts-3d.js"><script>
(This should be included after highcharts.js)
Loading the 3D module will not alter existing charts unless they are specifically set up to be 3D, this allows you to have both 3D Charts and regular charts on one page. The configuration for the 3D chart in general is done the chart section of the options, while some specific settings for different chart type can be found under plotOptions; here you see the fully extended 3D options with the type of value it expects:
chart: {
....
options3d: {
enabled: ´boolean value´,
alpha: ´numeric value´,
beta: ´numeric value´,
depth: ´numeric value´,
viewDistance: ´numeric value´,
frame: {
bottom: {
size: ´numeric value´,
color: ´color value´
},
side: {
size: ´numeric value´,
color: ´color value´
},
back: {
size: ´numeric value´,
color: ´color value´
}
}
},
...
}
...
plotOptions: {
...
column: {
...
depth: ´numeric value´,
groupZPadding: ´numeric value´,
...
},
...
pie: {
depth: ´numeric value´
},
...
}
For all 3D charts the following options are the most important (part of chart.options3d):
Beware that setting a low viewDistance can result in twisted effects in the perspective because the view point is too close to the chart.
In chart.options3d there is also the possibility to construct three panes around the chart called the frame, by default these panes are invisible but they can each be configured seperately in chart.options.3d.frame:
bottom|side|back: {
size: The thickness of the pane (defaults to 0)
color: The color of the pane (default to transparent)
}
A 3D chart of type columns will draw each column as a cuboid and thus create a 3D effect. By default the depth of this column is set to 25. To define another depth you have to go into the plotOptions and define one for the columns:
plotOptions.column.depth: The depth of each individual column.
Just like in normal column charts, the Highcharts 3D plugin does allow to display a series of charts and to order these as desired using techniques like grouping and stacking.
By default, grouping is true in Highcharts, displaying the columns next to each other, in Highcharts 3D this is still the same: the columns will be standing next to each other on the front row of your chart. By setting grouping to false, the columns will be placed behind each other in order of appearance. The default behavious is to place the columns without any spacing against each other, this can be modified by setting the groupZPadding option
plotOptions.column.groupZPadding: Spacing between columns on the z-axis.
Make sure the depth of the chart is sufficient to display all your columns. You will need at least the following depth: number of columns * (depth of column + z-padding)
A regular Highcharts column chart also offers the possibility to stack columns together, this is of course still available in 3D charts and works in exactly the same way by setting stacking to true and defining a stack number for each series.
For a pie chart the depth of the total chart is not important and setting the frame does not do anything (the frame is linked to the axis line and pies do not have these in the same way the other charts have). For pie charts it is important to set the depth property in plotOptions.
plotOptions.pie.depth: Defines the 'thickness' of the pie.
In addition to x & y coordinates like in a regular scatter chart, the 3D plugin adds an extra z coordinate to each point to place in 3 dimensions. Similar to the normal chart these coordinates can be sent eithe literally or using an array:
{x: 1, y: 1, z: 1} is the same point as [1,1,1]