make text a link in svg - d3.js

I'm using d3 to draw a chart (I'm using thix example: https://gist.github.com/keiranlovett/8766741). I need to add a link. I'm adding text and I'm trying to make it a link, but it's not appearing as a link (I'm using IE 11):
svg.append("g") //without doing this, impossible to put grid lines behind text
.attr({
xmlns: "http://www.w3.org/2000/svg",
xlink: "http://www.w3.org/1999/xlink",
width: 100,
height: 300
})
.attr({ "xlink:href": "#" })
.on("mouseover", function (d, i) {
//alert('aaa');
d3.select(this)
.attr({ "xlink:href": "http://example.com/" + "eeeeeeeeeeeeeeeeeee" });
})
.selectAll("text")
.data(tasks)
.enter()
.append("text")
.text(function (d) {
if (ammendmentsLinks.indexOf(d.contract) < 0) {
ammendmentsLinks = ammendmentsLinks + d.contract + ";";
return d.contract;
//return "";
}
else {
return "";
}
})
.attr("x", 20)
.attr("y", function (d, i) {
return i * 20;
})
.attr("font-size", 11)
.attr("text-anchor", "start")
.attr("text-height", 14)
.on("click", function (d) {
return click(d.contract);
});
I also added some lines of code from http://jsfiddle.net/christopheviau/B9zcF/ to make the text a link but it's not working.
How to make my text a link?

Try changing the following line:
d3.select(this)
.attr({ "xlink:href": "http://example.com/" + "eeeeeeeeeeeeeeeeeee" });
to
d3.select(this)
.wrap("<a xlink:href \"http://example.com/\"></a>")
.text("eeeeeeeeeeeeeeeeeee");
and make sure the <svg> tag has xmlns:xlink="http://www.w3.org/1999/xlink" specified.

This is a good solution too:
d3.select(this)
.text(d)
.on("click", function() { window.open("https://www.random.com/" + d ); });

Related

Replace space with new line charcter in texts d3js

I have a script in which I make txts in the following way:
texts = svg.selectAll(null)
.data(data)
.enter()
.append('text')
.attr("text-anchor", "middle")
.text(function(d) {
return d.abbreviation;
})
.attr("pointer-events", "none")
.attr("font-family", "sans-serif")
.attr("font-size", "10px")
.attr("fill", "black");
texts.each(function(d) {
console.log(this.getComputedTextLength());
d.size = this.getComputedTextLength() / 2 ;
});
simulation.nodes(data).on("tick", function() {
circles.attr("cx", function(d) {
return d.x = Math.max(20, Math.min(width - 20, d.x));
})
.attr("cy", function(d) {
return d.y = Math.max(20, Math.min(height - 20, d.y));
})
texts.attr("x", function(d) {
return d.x;
})
.attr("y", function(d) {
return d.y;
});
});
I am using property abbreviation in data to put text over the bubbles but I want to replace all spaces in input with new line character.
I tried some soutions like given at this link: How to linebreak an svg text in javascript?
but all texts go to left most corner or if I remove the .attr("x", 0) property from this, then the alignment of texts in not right. See picture below:
"State" should come directly below "Iowa"
Updated script:
texts = svg.selectAll(null)
.data(data)
.enter()
.append('text')
.attr("text-anchor", "middle")
.each(function (d) {
var arr = d.abbreviation.split(" ");
for (i = 0; i < arr.length; i++) {
d3.select(this).append("tspan")
.text(arr[i])
.attr("dy", i ? "1.2em" : 0)
.attr("text-anchor", "middle")
.attr("class", "tspan" + i);
}
})
.attr("pointer-events", "none")
.attr("font-family", "sans-serif")
.attr("font-size", "10px")
.attr("fill", "black");
What should I do to make the alignment right or is there any other way to do this?
There are different ways to fix this. An easy one is appending the <tspan> to a <g> element, setting all their x properties to 0 and text-anchor to middle.
Have a look at the demo:
var svg = d3.select("svg");
var data = [{
text: "some text"
}, {
text: "a longer text here"
}, {
text: "an even longer text here"
}, {
text: "short text"
}, {
text: "a long text"
}];
var texts = svg.selectAll(null)
.data(data)
.enter()
.append("g");
texts.append("text")
.attr("text-anchor", "middle")
.each(function(d) {
var arr = d.text.split(" ");
d3.select(this).selectAll(null)
.data(arr)
.enter()
.append("tspan")
.attr("text-anchor", "middle")
.attr("x", 0)
.attr("dy", function(d, i) {
return "1.2em"
})
.text(String)
})
var simulation = d3.forceSimulation(data)
.force("center", d3.forceCenter(200, 100))
.force("collide", d3.forceCollide(40))
.on("tick", tick);
function tick() {
texts.attr("transform", function(d) {
return "translate(" + d.x + "," + d.y + ")"
})
}
<script src="https://d3js.org/d3.v4.min.js"></script>
<svg width="400" height="250"></svg>
PS: Don't use that for loop inside the each. That's not idiomatic D3. Instead of that, just use an enter selection (refer to the demo to see how to do it).

I have to append text in my d3.js code but it's not displaying text

script type="text/javascript">
d3.csv("mydata.csv", function(data){
var svgcontainer = d3.select("body").append("svg")
.attr("width",500)
.attr("height",500)
svgcontainer.selectAll("rect")
.data(data)
.enter()
.append("rect")
.attr("width" ,function (d) { return d.age * 10;})
.attr("height" ,45)
.attr("y",function(d,i) { return i*50; })
.attr("fill","blue")
svgcontainer.selectAll("text")
.data(data)
.enter()
.append("text")
.attr("fill","white")
//.attr("y",function(d,i) { return i*50 ; })
.text( function (d) { return d.name; })
})
I have to append text in my d3.js code but it's not displaying text.I am new to d3.js so please any one help me. Here is my code-
From the first observation i will get to know the issue related with the text element position in svg. In SVG Coordinate positions are very important to achieve the graphical representation. In above code snippet x and y positions are missing. sample code below:-
svgcontainer.append("text")
.attr("x", function(d) { return x(d.value) - 3; })
.attr("y", barHeight / 2)
.attr("dy", ".35em")
.text(function(d) { return d.value; });
Example

How Can I Use Symbols With a Legend

I've got a legend, with colored rectangles...
I'd like to replace the rectangles with symbols (i.e., circle, cross, diamond, square). I can't figure out how to do that.
I've been using variations of .attr("d", d3.svg.symbol().type('circle'). For instance, I tried:
legendRect
.attr("d", d3.svg.symbol().type(function (d) { return d[2] })
and I tried:
legendRect.append("svg:path")
.attr("d", d3.svg.symbol().type((d: any) => { return d[2] }))
d[2] is "supposed to be" pulling from legendData, as shown in the below code example...like it does with d[1] for the fill.
But I don't ever see anything change.
Here's the code I'm using for the legend, without the symbol stuff, below. What am I doing wrong and how can I change the rectangles to symbols? Where do I need to add what?
var legendData = [["OA", "yellow", "circle"], ["OI", "blue", "cross"], ["RARC", "green", "diamond"], ["CAPE", "red", "square"], ["Other", "black", "triangleDown"]];
var legend = this.svg.append("g")
.attr("class", "legend")
.attr("height", 0)
.attr("width", 0)
.attr('transform', 'translate(-20,250)');
var legendRect = legend.selectAll('rect').data(legendData);
legendRect.enter()
.append("rect")
.attr("x", width - 65)
.attr("width", 10)
.attr("height", 10)
;
legendRect
.attr("y", function (d, i) {
return i * 20;
})
.style("fill", function (d) {
return d[1];
})
var legendText = legend.selectAll('text').data(legendData);
legendText.enter()
.append("text")
.attr("x", width - 52);
legendText
.attr("y", function (d, i) {
return i * 20 + 9;
})
.text(function (d) {
return d[0];
});
Here's how I would code it. Notice, that I data-bind to a wrapper g element and then place the symbol and text into it for each legend item. You can then position the g instead of positioning the text and "symbol" separately. This also removes the need for double-binding the data.
var legendData = [["OA", "yellow", "circle"], ["OI", "blue", "cross"], ["RARC", "green", "diamond"], ["CAPE", "red", "square"], ["Other", "black", "triangleDown"]];
var svg = d3.select('body').append('svg').attr('width', 500).attr('height', 500);
var legend = svg.append('g')
.attr("class", "legend")
.attr("height", 0)
.attr("width", 0)
.attr('transform', 'translate(20,20)');
var legendRect = legend
.selectAll('g')
.data(legendData);
var legendRectE = legendRect.enter()
.append("g")
.attr("transform", function(d,i){
return 'translate(0, ' + (i * 20) + ')';
});
legendRectE
.append('path')
.attr("d", d3.svg.symbol().type((d) => { return d[2] }))
.style("fill", function (d) {
return d[1];
});
legendRectE
.append("text")
.attr("x", 10)
.attr("y", 5)
.text(function (d) {
return d[0];
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.4.11/d3.min.js"></script>
This is a implementation which uses symbols for your legend. You can use the symbols like the following:
svg.selectAll('.symbol')
.data(legendData)
.enter()
.append('path')
.attr('transform', function(d, i) {
return 'translate(' + (20) + ',' + ((i * 20) + 10) + ')';
})
.attr('d', d3.symbol().type(function(d, i) {
if (d[2] === "circle") {
return d3.symbolCircle;
} else if (d[2] === "cross") {
return d3.symbolCross;
} else if (d[2] === "diamond") {
return d3.symbolDiamond;
} else if (d[2] === "square") {
return d3.symbolSquare;
} else {
return d3.symbolTriangle;
}
})
.size(100))
.style("fill", function(d) {
return d[1];
});
Then you can set your legend labels like the following:
svg.selectAll('.label')
.data(legendData)
.enter()
.append('text')
.attr("x", "40")
.attr("y", function(d, i){ return ((i * 20)+15);})
.text(function(d) {
return d[0];
});
Check fiddle here - https://jsfiddle.net/zoxckLe3/
P.S. - Above solution uses d3 v4. To achieve the same in v3, use the following line .attr('d', d3.svg.symbol().type(function(d){return d[2];})) instead of the part where I match d[2] to the symbol name.
For adding image icons, you can use below code.
legend.append("**image**")
.attr("x", 890)
.attr("y", 70)
.attr("width", 20)
.attr("height", 18)
.attr("xlink:href",function (d) {
**return "../assets/images/dev/"+d+".png";**
})
This works for me..

How to add text to Cluster Force Layout bubbles

I am trying to add some text from the name field in my JSON file to each bubble in a cluster.
https://plnkr.co/edit/hwxxG34Z2wYZ0bc51Hgu?p=preview
I have added what I thought was correct attributes to the nodes with
node.append("text")
.text(function (d) {
return d.name;
})
.attr("dx", -10)
.attr("dy", "5em")
.text(function (d) {
return d.name
})
.style("stroke", "white");
function tick(e) {
node.each(cluster(10 * e.alpha * e.alpha))
.each(collide(.5))
.attr("transform", function (d) {
var k = "translate(" + d.x + "," + d.y + ")";
return k;
})
}
Everything works fine except the labels.
What am I missing here?
Thanks
Kev
For that you will need to make a group like this:
var node = svg.selectAll("g")
.data(nodes)
.enter().append("g").call(force.drag);//add drag to the group
To the group add circle.
var circles = node.append("circle")
.style("fill", function(d) {
return color(d.cluster);
})
To the group add text:
node.append("text")
.text(function(d) {
return d.name;
})
.attr("dx", -10)
.text(function(d) {
return d.name
})
.style("stroke", "white");
Add tween to the circle in group like this:
node.selectAll("circle").transition()
.duration(750)
.delay(function(d, i) {
return i * 5;
})
.attrTween("r", function(d) {
var i = d3.interpolate(0, d.radius);
return function(t) {
return d.radius = i(t);
};
});
Now the tick method will translate the group and with the group the circle and text will take its position.
working code here
The problem: a text SVG element cannot be child of a circle SVG element.
The solution is creating another selection for the texts:
var nodeText = svg.selectAll(".nodeText")
.data(nodes)
.enter().append("text")
.text(function (d) {
return d.name;
})
.attr("text-anchor", "middle")
.style("stroke", "white")
.call(force.drag);
Here is the plunker: https://plnkr.co/edit/qnx7CQox0ge89zBL9jxc?p=preview

How do I set an image as the background of a path in d3.js?

First time using d3.js and am experimenting with using this example: http://bl.ocks.org/christophermanning/1734663 in a site I'm making, but I want the fill of the shapes to be images instead of a purple color.
I think the relevant code is inside the update function as follows:
path = path.data(d3_geom_voronoi(vertices))
path.enter().append("path")
// drag node by dragging cell
.call(d3.behavior.drag()
.on("drag", function(d, i) {
vertices[i] = {x: vertices[i].x + d3.event.dx, y: vertices[i].y + d3.event.dy}
})
)
.style("fill", function(d, i) { return color(0) })
path.attr("d", function(d) { return "M" + d.join("L") + "Z"; })
.transition().duration(150).style("fill", function(d, i) { return color(d3.geom.polygon(d).area()) })
path.exit().remove();
So first I comment out..
.style("fill", function(d, i) { return color(d3.geom.polygon(d).area()) })
..so my image fill wont be overwritten on update, and then I need to replace..
.style("fill", function(d, i) { return color(0) })
..with "something", but before I replace it I define the image by adding..
var image = svg.append("image")
.attr("xlink:href", "http://lorempixel.com/g/400/400/")
.attr("x", 0)
.attr("y", 0)
.attr("width", 400)
.attr("height", 400)
.attr("id", "fillImage");
..before the update function, and then I've tried replacing the fill code with stuff like:
.style("fill", function(d, i) { return "url('#fillImage')" })
or
.style("fill", function(d, i) { return "url(#fillImage)" })
or
.style("fill", "url('#fillImage')")
or
.style("fill", "url(#fillImage)")
or all the same except using "attr" instead of "style", as well as not using an id but the image varible, so: image, image[0], image[0][0], image[0][0].outerHTML. But nothing seems to work, so any ideas?

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