I have 2 Highchart charts: column chart and point chart.
They share same xAxis config:
{
type: 'datetime',
min: Date.UTC(2010, 01, 02),
max: Date.UTC(2010, 01, 14),
startOnTick: true,
}
I want to align their x axises so values on corresponding dates are located on same vertical line.
How can I modify charts so that their x axises are properly aligned?
jsFiddle:
http://jsfiddle.net/vmdLommk/1/
The difference is caused by automatically applied padding to the axis for a column series, to account for the width of the column itself.
There are probably multiple things that can be done, but I find it easiest to manage this way:
Add a dummy column series to your line chart. This will force the same kind of padding that is applied to the column chart.
Example:
{
name: 'dummy',
showInLegend: false,
type: 'column'
}
Fiddle:
http://jsfiddle.net/jlbriggs/vmdLommk/2/
Related
For better understanding of this question, let me show a working example in TradingView webpage, on which the following chart shows the combination of Momentum (area chart) + ADX (line chart):
As you can see, there are 2 vertical values, at left side is the ADX which the scale goes usually from 0 to 60(+-), but the right side, it can grow much more.
On my attempt to achieve the same here, the momentum (area chart) has a huge range, and the adx (lineal chart) goes from 0 to 60, so when it tries to fit both values under the same scale, my blue line looks like it's almost zero, in comparison with the area chart values. (Mouse-over the blue line showing that is currently 43)
So I think you get the point, would it be possible to have 2 scales/vAxis for each series of values?
I checked documentation already but nothing here seems to refer to what I mention:
https://developers.google.com/chart/interactive/docs/gallery/combochart
And just in case you need the options provided to the chart, nothing advanced, just the basic examples:
options:{
seriesType: 'area',
series: {
0: { type: 'line', color: 'blue' }
}
};
use option --> targetAxisIndex -- in the series option...
zero is the default v-axis
targetAxisIndex: 0
to create a second v-axis, assign one of the series to index 1
series: {
1: {
targetAxisIndex: 1
}
}
Found the solution over this post in the documentation, it is conceptually known as DUAL-Y Charts
https://developers.google.com/chart/interactive/docs/gallery/columnchart#dual-y-charts
I show a legend on top of a flutter chart with these options:
behaviors: [new charts.SeriesLegend(
desiredMaxRows: 2,
position: charts.BehaviorPosition.top,
outsideJustification: charts.OutsideJustification.middle,
horizontalFirst: true
),
The problem is that the legend does not wrap to a new row when it does not fit on the screen width. How can I make the legend to wrap into a new row?
Regards,
Use desiredMaxColumns instead of desiredMaxRows, or set horizontalFirst: false
[desiredMaxColumns] the max columns to use before laying out items in a new row. By default there is no limit. The max columns created is the smaller of desiredMaxColumns and number of legend entries.
I'm using Baidu's echarts library
How can I split colors of the area under a line chart after a certain threshold (beyond x-axis) using the areastyle?
Thank you!
You can't.
The areastyle is applied to the series itself, and cannot be tied to individual datapoints. Because the area color actually marks the area between two datapoints.
But.., you can, however, create a workaround and create two linecharts, like so:
legend: {
data: ['myLine']
},
series : [
{
name: 'myLine',
type: 'line',
areaStyle: {
normal: {
color: 'red'
}
},
data: [400, 300, 101, 134, null, null, null]
},
{
name: 'myLine',
type: 'line',
areaStyle: {
normal: {
color: 'green'
}
},
data: [null, null, null, 134, 90, 230, 210]
},
]
By adding it manually to the legend, and by giving both series the same name. ECharts combines the two series to some degree, so both the legend and the animation are acting like it's a single series.
Also, make sure to connect the two lines, by adding a datapoint twice (see 134). And you can customize the lines a little more with lineStyle, etc, to make them look better.
You can create a little demo by checking the ECharts demo gallery and replace the series and legend data with the snippet above (you may have to click the blue run button).
I have a strange behavior with my drill down to a waterfall chart. My middle column which is a negative value is not positioned on the top, instead it is going from zero down.
I have taken the exact same configuration and applied it to a first level waterfall chart and there it works fine.
Expected result: Column 'Discount' should go from 50 to 40
Actual result: Column 'Discount' goes from 0 to -10
JSfiddle for drilldown chart where waterfall is not as I want it:
[Drilldown][1]
JSfiddle for chart where waterfall is correct:
[Waterfall][2]
I can not figure out what is missing.
[1]: https://jsfiddle.net/a5x2g0q8/
[2]: https://jsfiddle.net/jfgycycp/
Based on the Highcharts example of Drilldown from column to pie, you need to set the chart type to be the drilled down type, i.e. to 'waterfall', and set the type of the top level series explicitly, i.e. to 'column'.
Updated chart options with type:
chart: {
type: 'waterfall',
height: 350,
zoomType: 'xy'
},
Updated top level series options with type:
series: [{
type: 'column',
data: [
{
name: 'Sweden',
y: 55,
drilldown: 'Sweden'
}]
}],
Updated Fiddle
Kendo team released their pannable/zoomable chart recently.
I would like to use it but I have the following problem: I need to display only the last X records of the available ones, and display the rest on zoom/ mouse move.
The example they presented on their site: http://demos.telerik.com/kendo-ui/bar-charts/pan-and-zoom displays the data starting from c0 to c10.
I would like to see the last 10 records from c89 to c99 instead of the first 10.
How to achieve that - can you please advice.
In their example, set the min and max of the category axis:
categoryAxis: {
min: 90,
max: 99,
labels: {
rotation: "auto"
}
},
Updated DEMO