Google Chart Visualization API, Bar chart values / tooltips - javascript

I am trying to add the actual value of all the bars in my chart to the
end of each bar. I want this to either replace, or to add to the tool-
tip functionality.
I see that this is possible in the image chart, it is the
functionality described in the following link that I wish to
replicate:
http://code.google.com/apis/ajax/playground/#image_bar_chart
I am wondering if this is possible in the Javascript based version of
the bar chart?
Many thanks,
H.

It looks like there's no built in functions to draw text ad-hoc on top of google's different charts. Behind the scenes, it's generating SVG so you could try to insert some valid SVG on your own.
Another option would be to use a more flexible (but less featureful) library like raphael.js:
http://raphaeljs.com/

Related

how can i plot 2 dimensional bar chart with a jquery library?

I couldn't find any jquery library that can plot 2 dimensional bar charts (if i name it true). I want to plot a graph like this;
As you can see there are 2 variable for each bar. Width and height. But i can only change height of the bar charts in every library i tried.
I want to give 2 interval for each variable and plot a rectangle.
Can you help me to find a library that can plot it or share some information about it?
Thank you.
I found the answer with luck. It is called Marimekko graphs and you can plot it with this javascript library.
http://www.mekkographics.com/free-trial/ or
http://www.fusioncharts.com/charts/marimekko_2/
It solves many problems to know its name. You can search for marimekko charts. Also there are lots of free codes in internet like;
http://bl.ocks.org/mbostock/1005090
https://gist.github.com/mbostock/1005090
d3.js how do I add text to Marimekko chart
http://www.jqplot.com/deploy/dist/examples/mekkoCharts.html

drawing custom line chart and column chart

I need to make line charts and column charts for cricket run rate, wickets etc. and due to some extra requirement I am unable to use the libraries available on internet like google charts, highchart etc.
Some of the requirements are:
show more than 1 circle on line/column chart if more than 1 wickets falls in an over, something like the image below
different color of each bar
I have searched on google but couldnt find any ready to use libraries like this
and before I decide to draw custom charts I wanted to confirm if there is any library available where I can do these custom changes and if not then I need suggestion if I can draw them in HTML5 or what do you think would be the best approach.
It sound like you want to take a look at Chart.js. I've used it on several occasions, and it's a good tool for making charts with HTML5 and JavaScript. It gives you a wide variety of different charts to choose from without having to custom code a whole bunch of stuff. And they look nice as well.
The examples in the documentation are very descriptive, and the default example includes a bar-chart that has alternating colors, matching that of your example pictures.

Adding a Background to certain part of a graphic with nvd3

I' have an already made a Stacked/Group multi bar chart with NVD3 which is working great. I need to add a grey background to some of the places of the graphic to inform something to the user.
Does anybody know how to do this?
Thanks!
If I understand correctly you don't want a background for the whole chart. In this case you can always use d3's own insert method selection.insert(name, before) (see the documentation at https://github.com/mbostock/d3/wiki/Selections#wiki-insert ) to display an svg object at a certain in front / behind certain elements...(I guess it would be behind all the groups from you animation basically).

ready to use dynamic pie chart in d3.js

I am evaluating to change the graphics I generated so far using highcharts.js to d3.js
just for fun and I want to learn how d3.js works.
I wonder if there is something similar to the url below (see if you click on a pie it gives you new data), something dynamic and ready to use (or not to implement from zero).
What I wanna achieve, more or less...
http://lully.snv.jussieu.fr/gbif/mapping/graphs/examples/pie-legend.htm
thanks in advance
Pere
If you want to replace Highcharts, I think the only good open-source alternative available at the moment is Bob Monteverde's Novus charts library: http://novus.github.com/nvd3/. NVD3 has a nice pie chart and also has good legends. Take a look at all the charts from this library and you will see what I mean. You can also find a good pie chart in Stephen Boak's tutorial: http://blog.stephenboak.com/2011/08/07/easy-as-a-pie.html. Another interesting option is to look for Frank Guerino's questions on the D3 js google group. I would use NVD3 if I were you. It might need some adjustments, but it seems to be the best option currently. Good luck!
Simple function to generate Pie Charts utilisiing d3.js. This function is part of the http://xhprof.io/ project. It is able to handle datasets of arbitrary size. It has several options that allow for customisation, such as the label margin, circle radius and visibility of the percentage data (refer to the source code).
The demo is available at https://dev.anuary.com/858b33b7-bd66-507b-a9f1-533e4de79ba3/. The source code is available at https://github.com/gajus/pie-chart.

Which javascript or JQuery charting tool can I use to create heatmap charts with vertical column labels?

I'm looking for a charting library that can draw heatmap charts, and has the option of displaying column label text vertically (allowing me to fit lots of columns on the screen regardless of the length of the labels)
Ideally the library would be free for a charity/educational organisation.
Here's an example of a simple heatmap with vertical labels:
That chart was created using FusionCharts, which is not suitable as it is a flash-based product and is expensive to license.
You could always roll this yourself. Most of the table can be generated using ordinary HTML, with the exception of the vertical labels at the bottom. You could tackle that with Rafael, a JavaScript library that allows you to draw on an HTML canvas. Drawing rotated text is actually available out of the box so it won't be hard to implement.
I think what you are looking for is also called a TreeMap (in some circles anyway).
Check out thejit.org
Under the demos checkout the treemap and the icicle chart.
At this url you can find what you are looking for heatmapjs

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