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.
Related
I'm working on a timeline-based chart that should always have one rect per x-axis tick. The idea is to use the color of each rectangle to convey the amount of data that's in that date (somewhat like a heatmap).
The chart also has grouped y values. That is, there are two y axes: one for each group, and inside each of those, three lines (subgroups). Semantically the intention is to say: "For this coupon, on this date, there are this many readings for each data type". To help clear up my intention further, this library has a very similar solution to what I'm aiming at.
OK, and your question...?
My question is about aligning the rectangles with the ticks, and keeping them that way. How can I make them always be aligned with the ticks? Is there a way to "tie" a rect to a tick?
To make matters worst, the chart has to be zoomable, so when you scroll and the dimensions of the ticks change, the rectangles should stick to their corresponding ticks: move with them, change their width accordingly and so on. Basically, I'd like to "marry" the rects to their corresponding ticks.
What have you tried?
My approach right now is to make the segments' width depend on the current tick count, and essentially treat the current ticks as if they were my data.
That is:
segmentWidth = state.width() / ticks.length;
And when updating/rendering the rects:
state.mainG.selectAll('g.couponData')
.selectAll('g.column')
.data(ticks)
...
One problem I see with this is that if you click and drag, the ticks expand, so having a single, global segmentWidth doesn't seem like the right approach. Seems like I'd need a way to grab each tick and get the distance to the next one, and use that as the width of each corresponding segment, but I haven't quite got there yet.
Here's a fiddle with an example of what I have:
https://jsfiddle.net/bnekvp0o/11/
TBH, I presume I'm making some dumb calculation mistakes, but I also feel like I'm bruteforcing the solution, so I'm hesitant to keep trying to make it work with my current approach, since I'm quite new to the framework.
Thanks in advance!
while using the older version of highchart - 2.1.6, if a plot had only one value or a series of same values, it would plot at the middle of the screen as below.
But, ever since i have upgraded the version of the highchart to 4.1.5, the line sticks to the bottom, on the xaxis. like this.
I am looking for the option to set it back to normal but, didn't find it yet. Help me out with this please.
I have tried pointPadding on the series and even maxPadding on the yAxis, but no use.
Here is the fiddle where it is replicated -
http://jsfiddle.net/ka4p4sym/2/
var chart = $('#container').highcharts();
I would set yAxis.minRange option, demo. It won't place line exactly in the middle, but will make some extra space on top and bottom.
while using the older version of highchart - 2.1.6, if a plot had only one value or a series of same values, it would plot at the middle of the screen as below.
But, ever since i have upgraded the version of the highchart to 4.1.5, the line sticks to the bottom, on the xaxis. like this.
I am looking for the option to set it back to normal but, didn't find it yet. Help me out with this please.
I have tried pointPadding on the series and even maxPadding on the yAxis, but no use.
Here is the fiddle where it is replicated -
http://jsfiddle.net/ka4p4sym/2/
var chart = $('#container').highcharts();
I would set yAxis.minRange option, demo. It won't place line exactly in the middle, but will make some extra space on top and bottom.
So I'm trying to get my highcharts plot to draw the recent minima and maxima.
I already figured the correct JSON sub-object is "plotLines", however my script just refuses to draw them without any error. Maybe someone of you can spot my error. The corresponding (and probably wrong, but that doesn't really matter for this example) values are listed to the left
thanks!
With you current values, the lines will never plot.
Your axis min is sitting at 500, and you are plotting lines at 498.
The axis will not expand to show plotLines or plotBands - it will only expand to show data (or based on minPadding/maxPAdding, etc).
You will need to check that your lines are within your axis min/max in order to display them.
You can do that by using the getExtremes() method, and if needed, the setExtremes() method:
http://api.highcharts.com/highcharts#Axis.getExtremes
http://api.highcharts.com/highcharts#Axis.setExtremes
Edit to incorporate comments:
If the line is the same value as a grid line, you will need to set a zIndex on either the plotLine or the gridLines - by default the gridLines are above the plotLines
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