I want to know how to use arcTween for animating for multiple arc path at a time.
And what exactly the use of interpolate.?
Please find the below image which i am trying to achieve but couldn't able to. I hope i will get a better solution here.
And this is my code JSFiddle.
var partition=d3.layout.partition()
.size([Math.PI/2, radius])
.value(function (d) { return d.depth; });
After every click on button the arc paths should change their path in the mean of transitioning or animating just like showed in the above image.
Related
I've made a simple Zoom & Pan notebook in ObservableHQ.com with D3.js I have two questions:
https://observablehq.com/d/c63434913a56fbb2
If the curson is on the black square (i.e. SVG), it dosen't click and drag anymore! How to allow drag at all time?
How to disable zoom function when mouse is scroling and keep only panning?
Thank you very much!
I'tried different code snnipets, but the simpler one I found don't behave like I would like.
You’re using d3.drag and d3.zoom, which both include functionality to let you drag stuff around. d3.drag lets you drag individual elements with finer control (like rearranging circles); d3.zoom only lets you drag the whole scene. They can be combined, but you only need one or the other here.
In your notebook, the d3.zoom piece is working, but doing more than you want it to (zooming and panning when you only want panning); the d3.drag piece is broken.
You call d3.zoom on the whole SVG, and d3.drag on just the group g. The group contains the bigger black-stroked empty square and the smaller black-filled square; if you click anywhere on that, the d3.drag code runs before the d3.zoom. (It's not just on the black-filled square; if you zoom in, you can see that dragging directly on the outer stroke also doesn't work.)
But the d3.drag code is throwing an error (as you can see in the browser console), because it's trying to set d.x and d.y when d doesn't exist, so nothing happens when you drag. And it wouldn't work anyway, because it's trying to set the cx and cy attributes, which the SVG group element doesn't have; it was probably originally written for an SVG circle element. For a group element, the dragged event should be setting a transform on the group instead, which your d3.zoom code is already doing.
Using d3.zoom
In this approach, you can click and drag anywhere on the SVG. If you don’t want it to zoom when you scroll, you can make scaleExtent only allow a scale of 1:
svg.call(
d3.zoom()
.extent([[0, 0], [w, w]])
.scaleExtent([1, 1])
.on("zoom", function(event) {
g.attr("transform", event.transform);
})
);
Here's a suggestion you can merge into your notebook to use the d3.zoom approach (you should only merge one or the other!): https://observablehq.com/compare/c63434913a56fbb2...a3c5334fa206bb61
Using d3.drag
In this approach, you can only click and drag on the group (where it has stroke or fill). You can give the group a datum with x and y values of 0 to start with, and use a transform instead of setting cx and cy:
const g = svg.append("g")
.datum({x: 0, y: 0})
.call(d3.drag().on("drag", function(event, d) {
d3.select(this)
.attr("transform", `translate(${d.x = event.x}, ${d.y = event.y})`);
}));
If you wanted to be able to click and drag anywhere, you could add an invisible rectangle for pointer capture, as described here.
Here's a suggestion you can merge into your notebook to use the d3.drag approach (you should only merge one or the other!): https://observablehq.com/compare/c63434913a56fbb2...3650eb69db864a42
Hi Stackoverflow folks,
I have a question on D3.js
Basically what I want to achieve is the change of the shape as below.
However,
Once I finished the coding of the first drawing, the coordinate information was as below.
d3.selectAll('body').select('svg').append('rect')
.attr('x', 50)
.attr('y', 50)
.attr('width',150)
.attr('height',150)
.attr('fill','none')
.attr('stroke-width',2)
.attr('stroke','black')
I tried to change the shape as I clicked the rectangle.
So I made a click event. But!
the Parallelogram I want to achieve should be made of 'path'.
How do I change the square shape as I click the square.
Since I want to do 'animate'for the change,
simply toggle off the square and and toggle on Parallelogram is not what I'm trying to make.
Can any please help me?
Or anyone has better solution for this??
Thank you in advance.
I need help adding specific ticks to an axis that is also being focused with a brush. I found a similar question/answer for a static axis (without a brush) here:
Adding a specific tick to a D3.js axis
It's along the lines of what I'm trying to do. My chart is more similar to this example though :
http://blockbuilder.org/pergamonster/419aef09c21ffe8dd1dac971016468d6
Say you wanted to have a 'July 4' tick on both the full axis and the focus axis at all times. I've tried the axis.ticks().push(...arrayOfNumbers) from the above question/answer in my code, but nothing happens. If I do axis.tickValues(arrayOfNumbers) it puts ONLY those numbers as ticks, but I would like to have the auto scaling number PLUS my specific numbers on the axis for the focus area.
Any help would be appreciated.
P.S. Though my chart is similar the about blockBuilder example, I'm using a linearScale not a timeScale if that matters. Thanks
draw a second x-axis where you only specify the extra ticks.
svg.append('g')
.attr('class', 'x-axis-extra')
.attr("transform", `translate(0,${height})`)
.call(d3.axisBottom(xScale).tickValues([2.78,3.14]));
You need a bit of CSS to hide the extra path
.x-axis-extra path { opacity: 0; }
I created a heatmap and sparklines next to the heatmap.
HERE the Plunker
Now I would like that when the user hovers over a cell of the heatmap, a red dot is displayed on the corresponding sparkline.
On the other hand, when the user hovers over the sparkline, the corresponding cell in the heatmap is highlighted.
I hope it's clearer with some drawings:
I thought I could change the code at this point:
var cells = svg.selectAll('rect')
.data(data)
.enter()
.append('g')
.append('rect')
//...
.on('mouseover', tip.show) // <- HERE
.on('mouseout', tip.hide);
I should keep track of the rectangle on which the mouse is located and somehow pass this data to the piece of code that controls the sparkline.
But I don't really know how to do it and I have not found similar examples.
Thanks!
HERE MY PLUNKER
add this liblary:
<script src="https://code.jquery.com/jquery-3.1.0.js"></script>
To solve your problem, you need understand the concept,
The D3 can holding data when you put on it
The D3 can select base on class and id
The DOM element can hold attribute (Ex: attr-id)
Scale linear can be invers, that mean if you have domain you can have range and if you have range you can have domain
Element that draw with D3 is updatable & deletable
understand the liblary you use (d3-tip)
What i Change
i add class and id to element i want to select
if i want to use data, i save data to data-attribute
i make function to track my mouse on Line-chart, and invers it to get value
i draw object tip i want to use
read the code if you want to understand ask me which line you dont understand, if you need explanation
I am using the zoomable sunburst example but I am struggling trying to add a text to the center of the diagram and still make it zoomable.
The idea is that the text in the center will change when I click on a certain arc indicating its length. It seems that the properties of the mouseclick and mouseover dissapear.
This is what I have tried:
path.append("svg:text")
.on("click",click)
.style("font-size","4em")
.style("font-weight","bold")
.text(function(d) { return count_function(data); });
Can someone help me understand how to display the text in th center of the chart without losing the click functionality?
Maybe an easier approach would be to select the "g" that represents the circular centre and add text to it once the chart was been displayed. I have tried this but I am unable to successfylly select just this element (sorry I am new to D3), so back to square one.
It looks like you're trying to insert a text element inside a path element. Try something like this:
svg.select("g").append("svg:text")
.on("click",click)
.style("font-size","4em")
.style("font-weight","bold")
.text(function(d) { return count_function(data); });