I am new to d3 and I am trying to do something like this. Here is what I have done so far JSFiddle, but I don't know how to align the lines to put them like in the picture and also how to put an information box below the chart.
var x=d3.scale.linear().domain([0,r]).range([0,w])
var y=d3.scale.linear().domain([r,0]).range([h,0])
center_group.append('line').attr("x1",x(r/4)).attr("y1",0);
center_group.append('line').attr("x1",x(-r/4)).attr("y1",0);
center_group.append('line').attr("x1",0).attr("y1",x(25));
center_group.append('line').attr("x1",0).attr("y1",x(-r/4));
Thanks!
If I understand correctly, you're trying to align the reticle lines within the circle. I've created a fiddle which should demonstrate a solution to the two issues in your original fiddle.
//circle svg drawn above this point...
center_group.append('line').attr("x1",x(r/6)).attr("y1",0).attr("x2",x(r/5.1));
center_group.append('line').attr("x1",x(-r/6)).attr("y1",0).attr("x2",x(-r/5.1));
center_group.append('line').attr("x1",0).attr("y1",x(19.7)).attr("y2",x(r/6));
center_group.append('line').attr("x1",0).attr("y1",x(-r/6)).attr("y2",x(-r/5.1));
//then include table, as shown here: http://bl.ocks.org/gka/17ee676dc59aa752b4e6
The first issue is that the lines were being drawn before the (white-filled) circle (so any line within the circle was covered). Second issue was that the lines were unbounded, so i added x2 and y2 attributes where needed. See picture link for results.
Regarding the information box, you could simply append a text element under the chart and drop your data in there, but for something more robust, you could include a table, as shown in the example linked in my code above (only two links allowed apparently).
Related
I am trying to add a movable scale or axis inside a plot. For instance: in this example of stacked plot: Click-to-view
I want to include a movable y-axis scale so, if we hover the graph and put the mouse pointer on the beginning of the orange color of any bar, the a-xis will begin from that bar. (Specifically, moving x=0 line.)
I meant something like this example (of d3).
https://observablehq.com/#d3/index-chart
But, here I want to change the value of x-axis by moving the line. Is it possible to do it using vegalite? If somebody has any similar example in vegalite, can you refer it?
Thank you!
AFAIK, there is no animation in Vega Lite. However, you may check out Gemini which aims to extend the grammar of data viz to some simple animations of single-view Vega/Vega-Lite charts
We need to make it move like here.example The code is complex there, I can't figure it out.
I wrote the code my code, but I don’t understand how to make the tooltip move horizontally not behind the mouse, but near the nearest horizontal mark (as in the example)
It is not yet clear where the text above the bold text in the tooltip comes from. How to remove it so that it looks like in the picture?
How do I make the title of the tooltip match the label on the X-axis?
There are many ways to accomplish this. The way I typically do this is to create a series of SVG elements -- such as circles or rects -- using the same scale and data as the paths.
You can make these objects visible or invisible. Either way, you can attach mouseenter, mouseleave events to each to render and populate the tooltip.
I am trying to adapt Bo Ericsson's D3 realTimeChartMulti example to a particular use, and I need to add a gridline where each category appears. I have not been able to figure out how to do that using his code.
https://bl.ocks.org/boeric/6a83de20f780b42fadb9
Does anyone have any idea how to do it? Everything I've tried (manipulating the D3 y axis to add ticks(5) would be the simplest alternative, as a start) causes the display to stop rendering altogether.
The simplest way to add a gridline is setting the innerTickSize() method (tickSizeInner in v4/5), which in your case would be:
yAxis = d3.svg.axis().orient("left").innerTickSize(-width);
Then, you can style it the way you want in the CSS by selecting a line with the y and axis classes (here I'm using a dashed line). Alternatively, you can apply the style straight to the group selection (append the axis first, and then append the circles).
Finally, you can see that the circles are behind the gridline, which is not a very elegant design. You can change that by changing the order of the appended elements.
Here is the forked code: http://bl.ocks.org/GerardoFurtado/2eaffbb3437acb62f66a7b6cb85bf435/3042a5357cbc703dcf102c733b7b5772b82d744c
I am trying to modify Bullet Charts example of dimple.js with each bullet chart being in a child-svg of the parent-svg. Purpose of having individual svg for each bullet chart is to make their management (show/hide/remove) easier. Also, this makes the recursive definition of a chart complete - That is, a chart is contained by an svg.
The fiddle for the modified version is here....
As you can see, from 2nd chart onwards, on mouse hover, tool tips go out of place!!! Please note that, for child-svg, I've set the style overflow: visible without which tool-tips were not visible at all.
Want to know if I am missing anything in handling the attributes of child-svg elements or is it a bug in dimple.js. Also, please let me know if you know of any workaround.
Thanks.
One of the first questions I have is why do you want child svg elements? What are you trying to accomplish?
The only difference I see in your code and the example is the height / width swap at the top and the sub svg + bounds.
Keep in mind that the origin changes with each sub-svg. This might be why you are having trouble with the tool-tips. Maybe you have that worked into your add-bullet calls.
I think nagu has the right approach here if you really want separate svg elements.
I'm using Segment Plot to show multiple lines on the chart. How can I make these lines have arrows on their ends?
You can do this with some SVG + DOM hacking. You can define a "marker element" that can be placed at the beginning, middle or end of a line (see http://tutorials.jenkov.com/svg/marker-element.html for details on markers).
This means manipulating the SVG generated by Plottable. To get the underlying DOM elements, you need to get hold of the d3 "selection" representing each line.
Add a marker definition to the <svg> element where you are rendering the plot. I am pretty sure plottable won't overwrite entities already inside, but if it does you can always add it after rendering the plot.
Use Segment#entities to get all "PlotEntity" objects from the plot (http://plottablejs.org/docs/classes/plottable.plots.segment.html#entities).
Use the PlotEntity#selection property (http://plottablejs.org/docs/interfaces/plottable.plots.plotentity.html#selection) to get the set of DOM elements representing each segment.
The "Selection" interface is just a d3 selection (https://github.com/mbostock/d3/wiki/Selections). You can then add the appropriate "marker-end" attribute to each element, which should give you the arrow heads you want.
On the off-chance these lines are vertical, I have a super easy hack. Use .symbol() to create a scatter plot where the points are either up or down arrows, and place them at the ends of the segments.
Otherwise, you may have to draw the arrows yourself. You can get the pixel locations of the ends of the segments like this:
locX = xScale.invert(endpointXValue)
locY = yScale.invert(endpointYValue)
And then you could append an arrow shape to the foreground (see the crosshair container in this example)