I have 1 chart with 2 scatterplot series like so
The series have same data points, basically I am drawing 2-2D plots instead of 1-3D plot..
Series 1 has the legend while on 2 its disabled. When I hover my cursor over the legend I want the tooltip to show up in both the chart, so a user can correlate legend to points on scatter plots.
$('.highcharts-legend text, .highcharts-legend span').each(function (index, element) {
$(element).hover(function () {
chart.tooltip.refresh([chart.series[index].data[0], chart.series[index+data.length].data[0]]);
}, function () {
chart.tooltip.hide();
})
});
I use above code to create desired effect, but tooltip is not appearing at the right place. maybe its a limitation from highchart. It throws the following JS error
Could someone please suggest me a workaround?
If you could make the chart.tooltip.refresh to function properly that would be the best. Other wise I am willing to make a compromise with at-least having the points in both series in hovered state and 1 of them showing the tooltip.
here is a fiddle to see the problem in action https://jsfiddle.net/9eoyg283/1/ , Hover over the legend items and you would get JS error in the console.
I can create the desired effect if I create 2 charts instead of using 2 series, but then that complicates other things which are not desirable. So this solution is off
Thanks in advance
Related
Is there any way to get the legend "icon" in tooltip? I need to show the legend "icon" in the tooltip so i can identify what series I'm referring to.
I'll try to explain it better.
When you create a chart, in the legend, next to the name of the series, there is a "mini" line, that represent the line of the series, the color, and the style.
That what I need to show in the tooltip.
I'm not referring to the dot marker but the small lines that appears in the legend.
Is that possible?
Edit:
I'm using the formatter that the tooltip api provides. There I have a reference of the point that I'm hovering on, and all the data associated to that point.
I can get the value, the chart, the series, the series to which it belongs, que point marker, almost everything.
But I can't figure how to get the little coloured line that appears next to every series name in the legend.
I guess is as simple as get one of the values that appears in the point data, but I don't know what I should look for, there are a lot of properties.
I found a solution.
You can look for the point.series.legendLine.
There you have all the info required for the legend svg, even you can get the outerHTML and paste directly to show the legend icon.
I am trying to use line chart, where I am using data with line series.
For that purpose I am using the legend. When clicked the legend, the following value will be hidden, and when I click the last one it also gets hidden, in my scenario last value should not get hidden so that at least one should be active.
I have done this in pie chart series but I can't implement this in line chart why?
- [Js Fiddle Pie Chart Demo][1]
- [Js Fiddle Line Chart][2]
var points = this.chart.series
JSFiddle
I have a line chart with markers disabled.
The legendSymbol is currently a line. I would like to show the symbol as a square. Any pointers?
With the latest Highcharts release you can also exchange the method that draws the legend icon from outside of Highcharts:
Highcharts.seriesTypes.line.prototype.drawLegendSymbol =
Highcharts.seriesTypes.area.prototype.drawLegendSymbol;
To use the element that is drawn for the area chart as an icon for a line graph.
(I have used this in Highcharts Stockcharts but this should be applicable in basic Highcharts as well)
You can use two series (one normal and one fake) with defined custom symbol. First should be hidden in legend. Then only what you need is use legendItemClick and call action.
http://jsfiddle.net/5m9JW/339/
You can change the stroke-width attribute on the path element.
We can provide functions to Highcharts that will be drawn whenever the chart is drawn. Since redraw is not called on the first drawing the load event is needed
chart: {
events: {
load: function () {
$(".highcharts-legend-item path").attr('stroke-width', 10);
},
redraw: function () {
$(".highcharts-legend-item path").attr('stroke-width', 10);
}
}
},
I like this as it's quicker than than the other two answers and adding a "fake series" feels like a hack.
If you need further customization Hendrik's would be great! The original question asked for a square, if all that's really needed is a rectangle (or a large square) this works great.
Also Hendrik's answer didn't work for me out of the box in HighStocks, this does.
I have a chart that has a custom legend i.e. it isn't part of Highcharts at all, it's completely my own code, the Highcharts legend is disabled for this chart.
Is it possible to turn series data AND plot bands on/off in a Highcharts chart using the API?
I found an example that triggered the click event of a legend item to do this, but this obviously relies on a legend being present, so this is no use to me: http://birdchan.com/home/2013/01/23/trigger-a-click-event-on-a-legend-item-in-highchart/
I also tried to set the series data .visible property to false and then redraw the chart and although it sets the visible property just fine, it doesn't redraw the chart so nothing changes:
var chart = new Highcharts.Chart(myoptions);
$("#custom_legend_link").click(function (e) {
chart.series[0].visible = !chart.series[0].visible;
chart.redraw();
}
Here is a jsFiddle using the basic line demo showing my problem:
http://jsfiddle.net/gfyans/zsaV4/
Thanks,
Greg.
To toggle the series, use Series.setVisible(). When called without parameters, it toggles.
Plot bands are a bit different, since they don't have methods like hide(), show() or setVisible. To toggle a plot band, you need to remove it by Axis.removePlotBand() and add a new one with the same options by Axis.addPlotBand().
When using Highcharts, is it possible to change the contents of the legend to display something other than the series?
For example, I have a scatter chart with just one series but with many elements, so that the element labels obstruct one another and are illegible:
Would it be possible to use the legend to display the element names instead of the series? (each member in the series has a different color so that it is possible to use the legend in this case)
EDIT:
It turns out there isn't any good way to do this, so I wrote my own custom legend. You can find the code here: http://pastie.org/5115536
I hope you find it useful
Highcharts allows to show data points instead of series name in the in the legend. But, Unfortunately its only for Pie charts type:pie.
There is a default option available for the Pie Chart though undocumented in the API.
legendType: 'point',
If you try to set it for other type of chart, Legend does not gets rendered.