The brushing on my D3.js parallel coordinates stopped working when I switched from loading the json data from a file to preloading it with jquery. I did this so that I could apply some filters to the data prior to loading it into the parallel coordinates.
The parallel coordinates are still rendering, but I am not unable to use brushing. When I do, it returns a blank result (nothing is selected).
I create the parallel coordinates here:
var pc = d3.parcoords({
dimensionTitles: {
nplay_video: "video plays",
final_cc_cname_DI: "country",
LoE_DI: "education level",
nevents: "# of events",
nforum_posts: "# of forums posts",
nchapters: "# of chapters",
ndays_act: "# days active"
}
})('#example')
And load the data
function refreshCoordinates(data){
// generate the parallel-coordinates
pc.data(data)
.ticks(4)
.mode("queue")
.color(color)
.composite("darker")
.alpha(0.15)
.render()
.dimensions(['LoE_DI','ndays_act', 'nchapters', 'nplay_video', 'nevents', 'nforum_posts', 'grade', 'certified'])
.createAxes()
.brushMode("1D-axes")
.interactive()
.reorderable();
}
The data is loaded, filtered using jquery, and updated when the user selects different attributes. Everything but the brushing seems to be working fine. I'm pretty new to D3.js so hopefully I'm just making a silly mistake. Thanks!
EDIT: If I load from a json file, then the brushing works. When I update the data I call a function to...
pc.data(data).render().updateAxes();
This is when the parallel coordinates stop being able to be brushed.
Related
my code:
function d3_chart() {
// sample data array
// instantiate d3plus
var visualization = d3plus.viz()
.container("#viz") // container DIV to hold the visualization
.data("./extra/acc.csv", {"filetype": "csv"}) // data to use with the visualization
.type("line") // visualization type
.y("x") // key to use for y-axis
.x("timestamp") // key to use for x-axis
.draw() // finally, draw the visualization!
}
my csv:
timestamp,x,y,z
0,2019-02-28 12:20:19.631,1.072,-0.153,10.113
1,2019-02-28 12:20:19.731,1.072,-0.153,10.419
2,2019-02-28 12:20:19.831,1.072,-0.153,9.96
3,2019-02-28 12:20:19.931,1.072,-0.153,10.113
4,2019-02-28 12:20:20.031,1.072,-0.153,10.113
5,2019-02-28 12:20:20.132,1.225,-0.153,9.96
6,2019-02-28 12:20:20.231,1.225,-0.153,9.96
7,2019-02-28 12:20:20.331,1.225,-0.153,9.96
8,2019-02-28 12:20:20.431,0.919,-0.306,9.5
9,2019-02-28 12:20:20.531,0.919,0.459,9.807
10,2019-02-28 12:20:20.631,1.225,0.153,10.113
11,2019-02-28 12:20:20.731,1.379,-1.992,10.113
12,2019-02-28 12:20:20.831,1.838,-0.306,9.653
13,2019-02-28 12:20:20.931,0.153,0.766,10.113
14,2019-02-28 12:20:21.032,0.459,1.532,10.266
15,2019-02-28 12:20:21.133,1.072,0.0,9.96
I just got getting message:
No Data Available
What is wrong? I don't find any example in internet with csv loading via this library
Or something know how graph chart from csv via general D3 with simple example?
d3plus seems to be using v3.5.15 of d3.js. Regardless of that, you will need to tell d3plus of how to load the data. Reading the API documentation it seems you will have to load the data using
d3plus.dataLoad(path, [formatter], [key], [callback]) as explained here.
Alternatively, you can use d3.js to parse your csv file and pass it as the data. To do this you can use the
d3.csv.parse(string[, accessor]) as provided in the d3.js CSV API.
Keep in mind in both cases you will need to format your timestamps in the correct time format (For d3.js Time Format API doc), for you to be able to use the time scales. Also at least for d3.js when the data is parsed from CSV all values are string values and hence you will need to change the type of the values using an type conversion function. You can read more about this in a great guide on how to read data by Learnjsdata (d3.js v3, or d3.js v5)
There are several examples out there for d3.js v3 on importing the data for processing which may be a better option overall. Also consider d3plus has not got a github commit in over a year so the library may not be well supported.
I hope this helps and at least gives you a start. If you need more help please leave a comment below.
I am having a problem with loading data into d3.js. I have populated a data.json file with the following:
"[[11,53,32.0,20],[4,57,160.0,20],[4,58,192.0,20],[2,63,352.0,20],[0,66,448.0,20],[0,67,480.0,20],[0,67,480.0,170],[0,67,480.0,320],[0,68,512.0,20],[0,69,544.0,20],[4,70,576.0,20],[0,70,576.0,170],[4,70,576.0,320],[0,72,640.0,20],[0,73,672.0,20],[0,75,736.0,20],[4,75,736.0,170],[0,76,768.0,20],[0,78,832.0,20],[0,79,864.0,20],[0,81,928.0,20]]"
I want to load this data into JSON and then construct some objects using it. This is the responsible d3 bit:
frame.select("g").data(dataset).enter().append("img")
.attr("src", "Shuttle Booster Diagram Simplified.svg")
.attr("height", "150px")
.style("background-color", "red");
However instead of loading the 20 rocket diagrams that I was expecting, this loaded some 300-plus of them!
If I knock the dataset down to
"[[11,53,32.0,20]"
It loads 15 copies.
What is my mistake? Should I populate the data some other way in order to avoid this issue?
The repo for this effort:
https://github.com/ResidentMario/visualizations/tree/master/shuttle
I'm trying to use this widget to display 3 sets of data. the first set should be shown as a bar chart, and the rest can be displayed as lines on the chart.
From what I've read, Rickshaw Graphs should be able to do this by using the 'multi' renderer but I can't get that render to work at all.
Here is the ruby Array data object I'm sending, formatted to make it more readable:
iterationData:
[
{
:name=>"Delivered",
:renderer=>"bar",
:data=> [
{:x=>1, :y=>0},
{:x=>2, :y=>4},
{:x=>3, :y=>4},
{:x=>4, :y=>11}
]
},
{
:name=>"Estimated",
:renderer=>"line",
:data=> [
{:x=>1, :y=>2.7},
{:x=>2, :y=>5.4},
{:x=>3, :y=>8.10},
{:x=>4, :y=>10.8},
{:x=>5, :y=>13.5},
{:x=>6, :y=>16.2},
{:x=>7, :y=>18.9},
{:x=>8, :y=>21.59},
{:x=>9, :y=>24.29},
{:x=>10, :y=>26.99}
]
},
{
:name=>"Outlook",
:renderer=>"line",
:data=> [
{:x=>1, :y=>2.75},
{:x=>2, :y=>5.5},
{:x=>3, :y=>8.25},
{:x=>4, :y=>11.0},
{:x=>5, :y=>13.75},
{:x=>6, :y=>16.5},
{:x=>7, :y=>19.25},
{:x=>8, :y=>22.0},
{:x=>9, :y=>24.75},
{:x=>10, :y=>27.5}
]
}
]
and here is my calls to show the graph and to send data to the graph:
send_event in the ruby job:
send_event("#{projectID}-burnup-chart", {:series => iterationData})
dashboard.erb code:
<div data-id="23405488441-burnup-chart" data-view="Rickshawgraph" style="background-color:#ff9618" data-legend=true data-unstack=true data-renderer="bar" data-color-scheme="compliment" data-max="40"></div>
This just displays a blank widget with an orange background. The graph hasn't rendered at all. Can anyone suggest how I might achieve this? Or has anyone used a different widget to create a working burn up chart like this that they might be able to suggest?
I believe what you are trying to do is impossible because of the way that this widget marshals parameters from Dashing to Rickshaw.
Specifically, these complicated lines of code:
https://gist.github.com/jwalton/6614023#file-rickshawgraph-coffee-L193-L253
I'm not sure if Rickshaw gets mad if you send it extra data, but the author of the widget seems very concerned about sending it incorrectly. Essentially, you are falling into this case:
https://gist.github.com/jwalton/6614023#file-rickshawgraph-coffee-L237-L245
You might be able to get it to work if you added a line to that else if, like this:
else if series?.data?
# Rickshaw data. Need to clone, otherwise we could end up with multiple graphs sharing
# the same data, and Rickshaw really doesn't like that.
answer = {
renderer: series.renderer # add your renderer
name: series.name
data: series.data
color: series.color
stroke: series.stroke
}
Or better yet, just use jQuery Extend to make a new copy:
answer = $.extend(true, {}, series);
Let me know how it goes and I'll update my answer to assist if further problems arise.
In Google visualization ChartWrapper class, the code to draw a chart (bar chart, pie chart, etc) is as follows:
wrapper = new google.visualization.ChartWrapper({
dataTable: dataTable.toJSON(),
chartType: chartType,
options: options
});
console.log("Wrapper: " + wrapper.toJSON());
console.log(" ");
wrapper.draw(result[0]);
I am curious if there's an equivalent way of doing this using Highcharts where instead of calling new google.visualization.chartWrapper(...), we can just call something like new highcharts.chartWrapper(...). The options can include the container div id where the chart will be drawn.
Even if there is no way to do, any suggestions how I should be go about doing something similar to this?
As far as I know, in dataTable I can specify my data series in JSON format. In chartType, I can specify bar, column, pie, etc. Based on the highcharts example I saw, I can even write a service that generates a HTML file on the server side as shown here -> http://jsfiddle.net/gh/get/jquery/1.9.1/highslide-software/highcharts.com/tree/master/samples/highcharts/demo/column-basic/ and send back a response.
But what I don't know is how do I tell Highcharts to insert the chart right at container id specified in my options on the same page.
In this example, for instance, wrapper is just a json representation of the chart (which I can generate). What I am not sure is how do I convert that json representation to a highcharts map that gets inserted where I want on the same page.
Sorry, if this question seems complicated. I can clarify if you need additional information.
I am trying to create a Flot pie chart with a link in each wedge, so I can direct users to the appropriate details page on clicking.
There is already a similar post at With flot, how can I create a linked pie chart that takes you to other web pages?. I tried the answer on that page with with Flot 0.7 to obtain pie wedges with hyperlinked labels. However, series.URL returns "undefined" in the labelFormatter function. How do I resolve this issue?
On a side note: Its my first time posting here. I tried to ask this obviously related question at the link above so I don't create a new question for the same issue. However, it was deleted by the moderator. Wouldn't it have helped other users reading that post who suffered from the same issue to find a resolution? Not complaining, just trying to understand the rationale (have read the FAQs/Guidelines for asking questions..) behind the deletion.
If you follow the code in your linked question, they get quite close to what you want. The problem (which trips up many people) is that the item in the plotclick function is not the same as the series object in your raw data. What you can do though, is refer back to your raw data using item.seriesIndex in plotclick:
//setup options
//setup data
var data = [
{
label: "Serie1",
data: 10,
url: "http://stackoverflow.com"},
...
];
//call plot
//setup plotclick
$("#placeholder").bind("plotclick", function (event, pos, item) {
alert(data[item.seriesIndex].url);
});
I don't have it following the link, but that should be easy for you to do.
Here is some sample code in full: http://jsfiddle.net/ryleyb/pq4Q4/
Side note answer: Generally they would prefer you ask a new question instead of piling into an old question with new sub-questions. Especially in an "answered" question (I put answered in quotes because it doesn't seem that they came to a full answer, so I can see your confusion).