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
I want to represent a Tree in my GWt Project in a another way as the standard graphical
representation.
Drag & Drop should be able.
Like this one:
http://s1.directupload.net/file/d/2603/yzo588bb_jpg.htm
Do you know a good GWT Extension to realize this?
I have already looked at the Google Web Toolkit Gallery.
Do you think something like this would solve the problem?
http://gwtgallery.appspot.com/about_app?app_id=86
I'm using Raphaël Gwt for such graphic stuff.
I've tried Vectomatic once, but it is no fun to write, because it seems like the author had no Idea what a namespace is (Several classes starting with OMSVG) and it doesn't "feel" like writing a java programm.
On the other side, with Raphël-GWT is a binding to a javascript-library, thus you have (llittle) Preformance tradeoff for loading an external Cross-browser javascript library.
I am working with GWT2.3 version.I also found ExtJs4 framework very good and want to club the some of component of ExtJs4 in my application(GWT2.3).So I just want to know it is possible to club components of ExtJs4 with GWT application
Thanks in Adcance
Yes it is. Just add .js source to your public folder in /src. Then you can write custom JavaScript as native methods via JSNI. See more in the docs.
Why not use the GWT compatible project? http://www.sencha.com/products/extgwt/
It has the same widget library (afaik) and integrates quite nicely w/ GWT
I've looked at all of the libraries listed in: Best GWT widget library?
Honestly, gwt-ext looks the best, but it's no longer being maintained (and the old project lead for some reason recommends SmartGWT instead.) I don't like the approach of SmartGWT, both because it wraps Javascript, and because it wants me to wrap my backend classes in its various data components (I don't want to have to translate my model objects just to use its widgets). Vaadin looks nice, but again doesn't seem to want to let me just use it as a client widget library; I have to use its server components. GXT looks fine, but the open source license doesn't apply to my organization.
Everything else on the list hasn't been updated in a long time.
Is there no GWT widget library that just focuses on providing better widgets, and doesn't want to force you to use its architecture to develop your UI?
GWT Mosaic is another widget library using the more lenient Apache license
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/