Im in need for good candlestick chart for my web app and chart at http://bitcoinwisdom.com/ is really what Im looking for. I like the way you can zoom and move with it. Is it possible to figure out what they are using or do you think they made it up on their own? If so with what tools? Another amazing charting can be found here https://www.tradingview.com/e/ these two sites have even better charting than some desktop apps and I wanna know how they did it.
In searching the bitcoinwisdom's forums I found a couple posts asking for the exact same thing. In fact, I stumbled upon your SO post here looking for the same thing.
According to those forum posts' responses they used d3js.org with the rest being custom code. Unfortunately for us as their implementation is very impressive! View source on the page and look for the JS files they are referencing. The code is obfuscated and minified so porting it will be very difficult.
Related
I am newbie in Xamarin; I know there must be ready components for what I need, already I searched but not yet found.
I need to create a dynamic graphic like this:
http://www.highcharts.com/demo/dynamic-update
I wore this in PhoneGap (html5 + JS), but now I'm moving to Xamarin forms and would like to know if any third component is what I need or I'll have to do everything from scratch.
Thank you.
I'm currently looking into graphing too and OxyPlots seems to be a pretty good line graph tool. I don't think it supports dynamic updating so you'd have to program it to update manually when new data points come available.
I've not gotten round to actually using this myself but I thought I'd post this here in case it works for you.
Edit: Here's a list of examples. Also you can add it to your project using nuget so it should be easy to set up.
I'm using Syncfusion controls for Xamarin.Forms and I'm satisfied with it. They also have a free license for individual developers and small businesses.
For dynamically updated Xamarin charts SciChart offers an extremely high performance solution. With the SciChart Xamarin Chart control you can draw up to a million points, zoom, pan and scroll big datasets interactively.
Check out performance demos here:
https://www.scichart.com/example/xamarin-chart-realtime-fifo-scrolling-chart-example/
https://www.scichart.com/example/xamarin-chart-performance-demo-example/
https://www.scichart.com/example/xamarin-chart-ecg-monitor-demo-example/
Disclosure: I am the tech lead on the SciChart Xamarin project
we're just completing a new site build. With the current theme, we have had issues with structured data (we've highlighted it on Webmasters tools, and weeks later had to re-highlight it, and even then the highlighting prediction is not where we would like it to be).
It seems like Google is not able to find our Title, author, categories, content, featured image, date very easily. I'd expect to be able to communicate this to Google with 100% accuracy, since its so simple and we use the same format for all our articles). So maybe our theme is missing something by way of tags or something in the code to point to and identify this data?
Is that the case? Could someone please tell me what this aspect is called (so I can research it by its term), explain what I need to do with the new build, point me in the direction of an authoritative explanation/tutorial?
The site in question is a WordPress site, but I also am working on some php sites and would like to use this information on all sites, if it can be applied this way.
Thanks
You can use micro-data to mark-up the structured data. Also Google will really like your site if you show him (with a code) everything about the site - navigation, sidebar (aside), content (article) and so on. I suggest you to read about schema.org and micro-formats.
Here is an usefull article about your problem and how to implement micro-formats to your site.
I'm assigned with new task for creating chart application in iphone like.,(BarChart,PieChart,etc..,).But,i have no idea for chart application in iphone.Please anyone help me out to guide me to start chart application in iphone.If any of the frameworks or API used for this kind of chart application means please explain that also.
Give a shot to:
Core-Plot Framework
To get it working, read here.
You can also see the accepted answer of this SO question.
For a little bar-chart tutorial go here.
There is also:
s7graphview less features but It's an option.
If you can rely on the web, although it's a far from optimal solution, you can embed a UIWebView in your application, and use the Google Graph Visualization API or you can use a UIWebView with an HTML5 graph library lake rgraph. Look here for a jQuery based solution. Filament Group made also this one.
At the and some sample code from Apple (Accelerometer Graph).
A commonly used Cocoa "native" charting library is core-plot. Whilst I've yet to personally use it, it seems to be quite popular and is under active development.
Here you go, but next time please use the search function first:
http://code.google.com/p/core-plot/
Cocoa Graphing/Plotting Framework that Works on iPhoneOS
A popular one is core plot. http://code.google.com/p/core-plot/
I want to build an iPhone app that is really a wrapper around a wiki. Specifically, I have some static reference content that can be represented by a hyperlinked set of pages and want to build an app that will provide a nice interface over this content, including search, bookmarking, and annotating. I'm wondering what the best approach is for building something like this.
(I'm spent a fair bit of time googling for answers but pretty much every combination of search terms I can think of returns links to wikis, not links about putting a wiki into an app).
Are there libraries out there for handling wiki content (rendering, navigating links etc.)? I imagine I could just represent my content as a set of local HTML pages and point the web browser control at these but that doesn't seem right. Any ideas on how best to approach this in the iOS world?
Thanks in advance!
Try looking at TWedit, it is a wrapper for the excellent TiddlyWiki which is a single file WIKI built around JavaScript and HTML. TW is very powerful and well supported with many plugins available.
I've been trying to get pretty charts to work in GWT on our internal network.
Playing around with GWT-Ext's charts is nice, but it requires flash and is really messy to control (it seems buggy, in general).
I'd like to hear about something that works with the least amount of dependencies and it also must work without a connection to the web (so, Google' charts API isn't a solution).
Edit: Indeed, I would rather a library that is all client-side.
I'm building a GWT chart library based on Flot: http://gflot.googlecode.com
I hope you find it useful. Contact me if you have any questions.
Googling for "GWT +sparklines" has gotten me to gchart, which seems like what I need.
From what I understand - it's all client side and requires nothing more than their JAR file.
Google's charts actually come in two flavours, and one of them does not require interaction with Google's servers - so should satisfy your needs.
Google Image Charts is the API you are thinking of, which is an API on Google's servers that returns images.
Google Interactive Charts is a client side javascript API that renders entirely within the browser: Google Interactive Charts
Google provides a GWT wrapper for the interactive charts: GWT Visualization API
It's not all rainbows and unicorns and you can find chart libs out there that make nicer charts, but it's pretty solid, works on all major browsers and we've been using it successfully for quite a while.
http://code.google.com/p/ext-ux-ofcgxt/ is a nice option if you're using ext-gwt
Do you want something that has a server side component or entirely client driven? The best ones I have seen are all flash, alas. I have done little tricks with JS and GWT before, but there is only sophisticated I will get before I go hunting for a library to do it for me.
There is also "sparklines" - they are available in lots of flavours (very simple charts though).
gchart looks seriously awesome. Go with it !
If you're looking for client-side check out flotr which is based on prototype javascript library or flot which is based on jQuery. Both work well, though flot seems like its got a bigger backing.
If you are willing to go with flash, XML/SWF is a wonderful tool
+1 flot, requires jQuery though, so might not play well with GWT, I haven't used that.
Another flash option, with a pre-built GWT integration - Open Flash Chart / ofcgwt.
I think that gwt-chart is a better framework for you.
well.. i've used yahoo ui chart library (which GWT-Ext uses internally). Pretty neat solution, in the beta stage though.
Let us know the conclusion you arrive at..
There is one open source api for charts in GWT hosted on http://code.google.com/p/gwt-rcharts/ . The API works on SVG/VML specification. You may find it quite easy to implement and use. You may find the demo at http://gwt-rcharts.appspot.com/