I have a Highchart bar chart with negative values (with the bars then going downwards). Now I would like to paint a black line for y=0 like so: .
I haven't found a trivial way to do this and I would like to avoid directly modifing the SVG or adding a fake line chart or something. Maybe someone knows better way? I've already played around with (minor)tickInterval and (minor)gridLineColor but that wouldn't solve my problem.
you can use plot lines for this like shown in this example http://jsfiddle.net/4rpNU/
yAxis:{
plotLines:{}
}
here is the api reference for it http://api.highcharts.com/highcharts#yAxis.plotLines
Hope this will be useful for you :)
Related
I am trying to achieve something like this using echarts wherein the last part/section of the line chart is dashed, can someone help me figure this out?
Echarts-Line Chart Documentation:
https://ecomfe.github.io/echarts-doc/public/en/option.html#series-line
I think the only way you can achieve this now is which two series for one line each. One series for solid line, and the other for dashed line.
I want to remove (or make effectively hidden) the first vertical line in the grid for an nvd3 chart. I thought it was a problem with my chart, but after testing it, I realized it seems to be a more general problem.
I tested it by running the line:
d3.selectAll('.tick, .nv-axislabel, .nv-axis text').attr('fill','#999999')
in the console, at the simplest line chart I could find: http://nvd3.org/examples/line.html and it still didn't work! It changes all the lines except the very first vertical line. I'm baffled, I've tried every combination of classes with stroke, fill, opacity, etc - I can either affect the entire svg (with opacity), or nothing. Anyone have any ideas?
EDIT:
I should have specified this originally, I apologize - I do not want to remove the Y axis entirely. I still need the label and the tick marks - I just want to remove that one vertical line (or at least lighten it - it is much darker than the rest of my chart).
Going by your comments:
You don't want to see the " the first vertical line in the grid for an nvd3 chart"
Which is the y axis:
Two ways to achieve that:
Option1
var chart = nv.models.lineChart()
.margin({left: 100}) //Adjust chart margins to give the x-axis some breathing room.
.useInteractiveGuideline(true) //We want nice looking tooltips and a guideline!
.transitionDuration(350) //how fast do you want the lines to transition?
.showLegend(true) //Show the legend, allowing users to turn on/off line series.
.showYAxis(false) //hide the y-axis
.showXAxis(true); //Show the x-axis
Option2:
Since in your example you are going for a CSS option
d3.selectAll('.nv-y').attr('display','none')
I will prefer Option1
EDIT post your clarification, you wish to make the y axis line light you can use:
d3.selectAll('.nv-y path').attr('opacity','0.1')
or if you want to hide it completely
d3.selectAll('.nv-y path').attr('display','none')
One solution is to specify an array of tick values that you want to use for each axis. Use axis.tickValues([values]) to explicitly declare which XAxis ticks you want for your graph. So you could pop .tickValues([1, 2, 3, 5, 8, 13, 21]); into either the chart.xAxis or the chart.yAxis, and ticks would only appear from the corresponding values in the array. In your case, you would want to put it in the chart.xAxis variable. However if you want to have a dynamic chart, explicitly declaring the tick values would pose a problem once the data is updated in the graph. If on the other hand you are using static data, this is a pretty easy fix. I've tested this solution in their live code editor and it seems to do the trick.
Refer to https://github.com/mbostock/d3/wiki/SVG-Axes#ticks to see some other directives that could be of use.
I am trying to customize the grid lines for morris.js to have a dashed style similiar to the revenue graph in http://dribbble.com/shots/947782-Freebie-PSD-Flat-UI-Kit/attachments/107093, Is this even possible? It seems that the documentation is not very complete, gridLineColor is not listed as an option yet it does change the color when I add it to my graph. Morris.js seemed to be highly recommended but I cant seem to adjust simple things like this.
I would also like to have each grid line the same weight and not have the center line emphasized while the others lighter. I cant seem to find anything in the documentation for that either.
Thanks for any help!
There doesn't seem to be an option yet for this in morris.js but I was able to edit the uncompressed morris.js file to add an option for dashed grid lines. Simply add .attr('stroke-dasharray', this.options.gridDashed) to the end of line 508. You can then add the option gridDashed: '--' to the graphs you would like dashed grid lines on!
Here is the line that needed changing in Graeme's answer:
Grid.prototype.drawGridLine = function(path) {
return this.raphael.path(path).attr('stroke', this.options.gridLineColor).attr('stroke-width', this.options.gridStrokeWidth).attr('stroke-dasharray', this.options.gridDashed);
};
I'm trying to apply a scale to y-axis in my chart, but when I do it I get a blank svg object.
I did the same thing with the x-axis and it's working fine.
Problem happens when you uncomment this section
// .y(function(d) {
// return yScale(d[1])
// })
http://jsfiddle.net/MgwR5/1/
Could anyone tell me what I'm doing wrong?
The area functions are y0() and y1(), not y(). Ref: D3 API documentation
Have a look at the js bin. I've put a bunch of comments in that should help and I've assumed that you wanted a line chart.
If you want to put axis's on your chart you should be looking to use the d3.svg.axis function. It does most of the heavy lifting for you. You also need to make space for the axis try using some padding and margins (you might want to look at this example or the example on the js bin d3 page - use the link at the top of the google groups d3 page). You also probably want to separate out your axis's and your plot by using svg's group ('g').
Cheers
I'm new to highcharts and I want to know if something like this is possible: http://img824.imageshack.us/img824/6537/sample1w.png
I haven't found anything similar in the showcase they provide so I thought someone more experienced could let me know how to accomplish this.
Thank you very much
You can use bar chart, and use groupPadding http://api.highcharts.com/highcharts#plotOptions.bar.groupPadding to set distance between groups of bars.
http://jsfiddle.net/7fvEX/
To add text, above one of group, you can use Renderer: http://api.highcharts.com/highcharts#Renderer.text()