Using d3.js, how would I modify the following code to add a nested, yellow-filled circle of radius "inner_radius" to each of the existing generated circles:
var circleData = [
{ "cx": 300, "cy": 100, "radius": 80, "inner_radius": 40},
{ "cx": 75, "cy": 85, "radius": 50, "inner_radius": 20}];
var svgContainer = d3.select("body").append("svg")
.attr("width",500)
.attr("height",500);
var circles = svgContainer.selectAll("circle")
.data(circleData)
.enter()
.append("circle");
var circleAttributes = circles
.attr("cx", function (d) { return d.cx; })
.attr("cy", function (d) { return d.cy; })
.attr("r", function (d) { return d.radius; })
.style("fill", function (d) { return "red"; });
As imrane said in his comment, you will want to group the circles together in a g svg element. You can see the updated code here with relevant changes below.
var circles = svgContainer.selectAll("g")
.data(circleData)
.enter()
.append("g");
// Add outer circle.
circles.append("circle")
.attr("cx", function (d) { return d.cx; })
.attr("cy", function (d) { return d.cy; })
.attr("r", function (d) { return d.radius; })
.style("fill", "red");
// Add inner circle.
circles.append("circle")
.attr("cx", function (d) { return d.cx; })
.attr("cy", function (d) { return d.cy; })
.attr("r", function (d) { return d.inner_radius; })
.style("fill", "yellow");
Related
I am new to d3.js and please forgive me if this sounds like a naive question. I have plotted a line (d3 v4) which can be draggable by its end points. The end points are rectangle.
The current output looks as below :
This is how it looks
The challenge that i am facing is - when i start dragging the point, the line seems to take its origin from the top left corner. When i drag the second point of the same line, the line drags / moves as expected.
The sample data looks as below :
The sample data
Requesting your suggestions / inputs on how to fix the above issue.
Below is the attached code that i am using :
var margin = { top: 0, right: 0, bottom: 0, left: 0 },
width = +svg.attr("width") - margin.left - margin.right,
height = +svg.attr("height") - margin.top - margin.bottom;
// Creating the colour Category
var color = d3.scaleOrdinal(d3.schemeCategory10);
var y = d3.scaleLinear().range([390, 0]);
// Scale the range of the data
y.domain([0, d3.max(data, function (d) { return Math.max(d.nonpromotedprice, d.promotedprice)*1.2; })]).nice();
// Line for the 1st Block
var lines = svg.selectAll("line")
.data(data)
.enter()
.append('line')// attach a line
.style("stroke", "#E6EAEE")
.style("stroke-width", 8) // colour the line
.attr("x1", function (d) { return d.x_value; }) // x position of the first end of the line
.attr("y1", function (d) { return y(d.nonpromotedprice); }) // y position of the first end of the line
.attr("x2", function (d) { return d.x_value; }) // x position of the second end of the line
.attr("y2", function (d) { return y(d.promotedprice); });
// Add the Y Axis
svg.append("g")
.attr("class", "grid")
.attr("fill", "lightgrey")
.attr("stroke-width", 0.7)
.attr("stroke-opacity", 0.2)
.call(d3.axisLeft(y)
.tickSize(-400)
.tickFormat(""));
var topEndPoints = data.map(function (line, i) {
return {
'x': line.x_value,
'y': line.nonpromotedprice,
'marker': 'marker-start',
'lineIndex': i
};
});
var bottomEndPoints = data.map(function (line, i) {
return {
'x': line.x_value,
'y': line.promotedprice,
'marker': 'marker-end',
'lineIndex': i
};
});
var MiddleEndPoints = data.map(function (line, i) {
return {
'x': line.x_value,
'y': line.avgprice,
'marker': 'marker-middle',
'lineIndex': i
};
});
var endPointsData = topEndPoints.concat(bottomEndPoints, MiddleEndPoints);
// Pointer to d3 rectangles
var endPoints = svg
.selectAll('rect')
.data(endPointsData)
.enter()
.append('rect')
.attr("width", 12)
.attr("height", 8)
.attr("x", function (d) { return d.x - 6; })
.attr("y", function (d) { return y(d.y); })
//.attr("cx", function (d) { return d.x; })
//.attr("cy", function (d) { return d.y; })
//.attr('r',7)
.attr("fill", function (d) { return color(d.x); })
.call(d3.drag()
//.origin(function(d) { return y(d.y); })
.subject(function() {
var t = d3.select(this);
return {x: t.attr("x"), y: t.attr("y")};
})
.on("start", dragstarted)
.on("drag", dragged)
.on("end", dragended));
// draw the logo
svg.selectAll("image")
.data(data)
.enter()
.append("svg:image")
.attr("xlink:href", function (d) { return d.logo; })
//.append("rect")
.attr("x", function (d) { return d.x_value - 13; })
.attr("y", function (d) { return y(d.nonpromotedprice + 35); })
.attr("height", 25)
.attr("width", 25);
function dragstarted() {
d3.select(this).classed("active", true).attr('y', d.y = y(d3.event.y));
}
function dragged(d, i) {
var marker = d3.select(this);
// Update the marker properties
marker
//.attr('cx', d.x = d3.event.x)
.attr('y', d.y = d3.event.y);
// Update the line properties
lines
.filter(function (lineData, lineIndex) {
return lineIndex === d.lineIndex;
})
.attr('x1', function (lineData) {
return d.marker === 'marker-start' ? lineData.x1 = d.x : lineData.x1;
})
.attr('y1', function (lineData) {
return d.marker === 'marker-start' ? lineData.y1 = d.y : lineData.y1;
})
.attr('x2', function (lineData) {
return d.marker === 'marker-end' ? lineData.x2 = d.x : lineData.x2;
})
.attr('y2', function (lineData) {
return d.marker === 'marker-end' ? lineData.y2 = d.y : lineData.y2;
});
}
function dragended() {
d3.select(this).classed("active", false);
Shiny.setInputValue("pricechanged",
{price: (d3.max(data, function (d) { return Math.max(d.nonpromotedprice, d.promotedprice); }) -(d3.event.y / 390)* d3.max(data, function (d) { return Math.max(d.nonpromotedprice, d.promotedprice); }))*1.19},
{priority: "event"}
);
}
First, let me accept that i am new to d3.js. I am fairly accustomed to R. I have been doing plot in d3.js, thanks to the stack overflow community and some may d3.js example. I came across r2d3 as a mode to connect R and d3.js plots and hence have used the same to build a connection.
I have created a plot in d3.js and wanted to connect it with the R Shiny output. I am able to connect the plot to the R Shiny. But the plot is always coming out of the shiny plot area.
This is How my plot looks in the R Shiny area :
My Existing d3 plot in R Shiny
Requesting your suggestions on the following :
How to fix the d3.js plot within the R Shiny Area.
My Ui.R code is as below :
column(d3Output("clplot"),width = 12)
My server code is as below :
output$clplot <-r2d3::renderD3(
r2d3(data = cl_d3(),script="d3/cl_dilip_v1.js", d3_version = "5")
)
The js code is attached as below :
var margin = { top: 20, right: 20, bottom: 30, left: 50 },
width = +svg.attr("width") - margin.left - margin.right,
height = +svg.attr("height") - margin.top - margin.bottom;
var jsondata = [{ "promotedprice": 100, "nonpromotedprice": 350, "avgprice": 230, "x_value": 80, "brand": "Brand1" }, { "promotedprice": 99, "nonpromotedprice": 170, "avgprice": 130, "x_value": 140, "brand": "Brand2" }, { "promotedprice": 47, "nonpromotedprice": 147, "avgprice": 80, "x_value": 200, "brand": "Brand3" }, { "promotedprice": 100, "nonpromotedprice": 250, "avgprice": 220, "x_value": 260, "brand": "Brand4" }, { "promotedprice": 99, "nonpromotedprice": 170, "avgprice": 130, "x_value": 320, "brand": "Brand5" }];
// Creating the colour Category
var color = d3.scaleOrdinal(d3.schemeCategory10);
// Creating the 1st Comapartment
var svg = d3.select("body").append("svg")
.attr("width", 400)
.attr("height", 450);
var div = d3.select("body").append("div")
.attr("class", "tooltip")
.style("opacity", 0);
// Attach the Promoted Price Rectangle
var g = svg.selectAll("rect")
.data(data)
.enter()
.append("g")
.classed('rect', false)
.on("mouseover", function (d) {
div.transition()
.duration(200)
.style("opacity", .9);
div.html(formatTime(d.x_value) + "<br/>" + d.nonpromotedprice);
//.style("left", (d3.event.pageX) + "px")
//.style("top", (d3.event.pageY - 28) + "px");
})
.on("mouseout", function (d) {
div.transition()
.duration(0)
.style("opacity", 0);
})
.call(d3.drag()
.on("start", dragstarted)
.on("drag", dragged)
.on("end", dragended));
var accent = d3.scaleOrdinal(d3.schemeAccent);
// Line for the 1st Block
g.append("line") // attach a line
.style("stroke", "#E6EAEE")
.style("stroke-width", 17) // colour the line
.attr("x1", function (d) { return d.x_value; }) // x position of the first end of the line
.attr("y1", function (d) { return d.nonpromotedprice; }) // y position of the first end of the line
.attr("x2", function (d) { return d.x_value; }) // x position of the second end of the line
.attr("y2", function (d) { return d.promotedprice; });
// Promoted Price Rectangle for the 1st Block
g.append("rect")
.attr("width", 24)
.attr("height", 13)
.attr("x", function (d) { return d.x_value - 12; })
.attr("y", function (d) { return d.promotedprice; })
.attr("fill", function (d) { return color(d.x_value); })
// Non Promoted Price Rectangle for the 1st Block
g.append("rect")
.attr("width", 24)
.attr("height", 13)
.attr("x", function (d) { return d.x_value - 12; })
.attr("y", function (d) { return d.nonpromotedprice; })
.attr("fill", function (d) { return color(d.x_value); })
// Average Price Rectangle for the 1st Block
g.append("rect")
.attr("width", 24)
.attr("height", 13)
.attr("x", function (d) { return d.x_value - 12; })
.attr("y", function (d) { return d.avgprice; })
.attr("fill", function (d) { return color(d.x_value); });
// Graph X- Axis and Title Text for 1st svg
var y_scale = d3.scaleLinear()
//.domain([d3.min(function (d) { return d.promotedprice }), d3.max(function (d) { return d.nonpromotedprice; })])
.range([370, 0]);
var y_axis = d3.axisLeft()
.scale(y_scale);
y_scale.domain([0, d3.max(data, function (d) { return d.nonpromotedprice; })]).nice();
g.append("g")
.attr("class", "grid")
.attr("transform", "translate(0, 40)")
.attr("fill", "lightgrey")
.attr("stroke-width", 0.15)
.attr("stroke-opacity", 0.2)
//.attr("shape-rendering", crispEdges)
//stroke-opacity: 0.7;shape-rendering: crispEdges;
.call(y_axis
.tickSize(-420)
.tickFormat(""))
;
// PEPSICO AS-IS BRAND CALL OUT
g.append("rect")
.attr("width", 38)
.attr("height", 20)
.attr("x", function (d) { return d.x_value - 2; })
.attr("y", function (d) { return d.promotedprice; })
.attr("fill", function (d) { return color(d.x_value); })
.attr("transform", "translate(" + -15 + "," + -40 + ")");
g.append("text")
//.classed('rotation', true)
//.attr('x', (d,i)=> xScale(i))
.attr("x", function (d) { return d.x_value - 13; })
.attr("y", function (d) { return d.promotedprice - 28; })
.attr("dy", ".35em")
.text(function (d) { return d.brand; })
.style("font-family", "arial")
.style("font-size", 8)
.attr("stroke-width", 0.15)
.attr("fill", "white");
function dragstarted(d) {
d3.select(this).raise().classed("active", true);
}
function dragged(d) {
d3.select(this).select("rect").attr("y", d.y = d3.event.y);
//.attr("x", d.x = d3.event.x)
}
function dragended(d)
{
d3.select(this).classed("active", false);
}
Try to delete this part of code:
var svg = d3.select("body").append("svg")
.attr("width", 400)
.attr("height", 450);
I was able to create circles with d3 but I'm stuck trying to figure out how to add space between them?
var myCircle= [20, 10, 50, 80, 40];
var height = 500
var width = 500
var mychart = d3.select('#chartD').append('svg')
.attr('width', width)
.attr('height', height)
.selectAll('circle')
.data(myCircle)
.enter()
.append('circle')
.attr("cx", function (d) { return d; })
.attr("cy", function (d) { return d; })
.attr("r", function (d) {
return d;
})
.style("fill", '#f4f4f4')
}
I can use d3 to draw a pie chart or a graph, I can even draw a pie chart within each node of a graph as shown here.
Is it possible to create a reusable function that generate the pie chart and attach its result to the each node? That way the pie chart code could be reused, for instance in a gallery of charts.
var node = svg.selectAll(".node")
.data(graph.nodes)
.enter().append("g")
.attr("class", "node");
// draw pie chart
node.selectAll("path")
.data(function(d, i) {return pie(d.proportions); })
.enter()
.append("svg:path")
.attr("d", arc)
.attr("fill", function(d, i) { return color(d.data.group); });;
From the above code, I tried the following code which doesn't work
var node = svg.selectAll(".node")
.data(graph.nodes)
.enter().append("g")
.attr("class", "node")
.call(drawPie(function(d) { return d.proportions; }));
function drawPie(d) {
this.selectAll("path")
.data(function(d, i) {return pie(d.proportions); })
.enter()
.append("svg:path")
.attr("d", arc)
.attr("fill", function(d, i) { return color(d.data.group); });;
}
Your original idea is much closer than the one recommended in the other answer, you just need to understand how selection.call works.
This is not tested but the general principle is like...
var node = svg.selectAll(".node")
.data(graph.nodes)
.enter().append("g")
.attr("class", "node")
.call(drawPie);
function drawPie(selection) {
this.selectAll("path")
.data(function(d, i) {return pie(d.proportions); })
.enter()
.append("svg:path")
.attr("d", arc)
.attr("fill", function(d, i) { return color(d.data.group); });;
}
In reference to your first attempt, if you stop and think about this line...
.call(drawPie(function(d) { return d.proportions; }));
...it's actually trying to call null because that's what is returned by drawPie. It's equivalent to...
.call(null);
Based on the recommendations, here is the modified code which still require some improvements. An error message report that "row 93 undefined is not an object evaluating d.proportions"
graph = { "nodes":[
{"proportions": [{"group": 1, "value": 1},
{"group": 2, "value": 2},
{"group": 3, "value": 3}]},
{"proportions": [{"group": 1, "value": 2},
{"group": 2, "value": 2},
{"group": 3, "value": 2}]}],
"links":[{"source": 0, "target": 1, "length": 500, "width": 1}]
}
var width = 960,
height = 500,
radius = 25,
color = d3.scale.category10();
var pie = d3.layout.pie()
.sort(null)
.value(function(d) { return d.value; });
var arc = d3.svg.arc()
.outerRadius(radius)
.innerRadius(10);
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height);
var force = d3.layout.force()
.charge(-120)
.linkDistance(4 * radius)
.size([width, height]);
force.nodes(graph.nodes)
.links(graph.links)
.start();
var link = svg.selectAll(".link")
.data(graph.links)
.enter().append("line")
.attr("class", "link");
var node = svg.selectAll(".node")
.data(graph.nodes)
.enter()
.append(function(d) {return createPie(d);}) // .append(createPie) --- shorter version
.attr("class", "node");
// node.selectAll("path")
// .data(function(d, i) {return pie(d.proportions); })
// .enter()
// .append("svg:path")
// .attr("d", arc)
// .attr("fill", function(d, i) { return color(d.data.group); });;
force.on("tick", function() {
link.attr("x1", function(d) { return d.source.x; })
.attr("y1", function(d) { return d.source.y; })
.attr("x2", function(d) { return d.target.x; })
.attr("y2", function(d) { return d.target.y; });
node.attr("x", function(d) { return d.x; })
.attr("y", function(d) { return d.y; })
.attr("transform", function(d) { return "translate(" + d.x + "," + d.y + ")"});
});
function createPie(d) {
console.log(d);
var pie = d3.select(document.createElement('svg:g'));
pie.selectAll('path')
.data(function(d, i) {return pie(d.proportions); })
.enter()
.append("svg:path")
.attr("d", arc)
.attr("fill", function(d, i) { return color(d.data.group); });
return pie.node();
}
var node = svg.selectAll(".node")
.data(graph.nodes)
.enter()
.append(function(d){return createPie(d);}) // .append(createPie) --- shorter version
.attr("class", "node");
function createPie(data) {
var pie = d3.select(document.createElement('svg:g'));
pie.selectAll('path')
...;
return pie.node();
}
UPDATE:
function createPie(d) {
console.log(d);
var p = d3.select(document.createElement('svg:g'));
p.selectAll('path')
.data(pie(d.proportions))
.enter()
.append("svg:path")
.attr("d", arc)
.attr("fill", function(d, i) { return color(d.data.group); });
return p.node();
}
the previous variable pie needs to be refactored because it overwrites the one in parent scope.
and the data call needs to be fixed as well
I'm trying to add points to a line graph using d3 in this example:
http://bl.ocks.org/mbostock/3884955
I was also trying to follow this post
How do you get the points to look like this picture from the documentation?
http://github.com/mbostock/d3/wiki/line.png
The stroke of the circle should match the line color.
var color = d3.scale.category10();
d3.csv("data.csv", function(error, data) {
color.domain(d3.keys(data[0]).filter(function(key) { return key !== "date"; }));
data.forEach(function(d) {
d.date = parseDate(d.date);
});
var ranks = color.domain().map(function(name) {
return {
name: name,
values: data.map(function(d) {
return {date: d.date, ranking: +d[name]};
})
};
});
var rank = svg.selectAll(".rank")
.data(ranks)
.enter().append("g")
.attr("class", "rank");
rank.append("path")
.attr("class", "line")
.attr("d", function(d) { return line(d.values); })
.style("stroke", function(d) { return color(d.name); });
var point = rank.append("g")
.attr("class", "line-point");
point.selectAll('circle')
.data(function(d){ return d.values})
.enter().append('circle')
.attr("cx", function(d) { return x(d.date) })
.attr("cy", function(d) { return y(d.ranking) })
.attr("r", 3.5)
.style("fill", "white")
.style("stroke", function(d) { return color(d.name); });
.style("stroke", function(d) { return color(this.parentNode.__data__.name); })
See JSBin code
Found answer here