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I am attempting to develop a web page in which the codebehind draws diagrams. I have an analagous forms application which uses a picturebox, and the replies to the question here suggest I should use an Image Control.
But it isn't obvious how I should set about drawing my triangles and circles on this control. So: is an image control what I want? If so, can someone direct me to a tutorial or an example as to how to draw on it?
If it isn't, what should I be using? (What I am drawing isn't a graph.)
Don't do this on the server. Use client-side libraries. What you can do on the server - is prepare data for the diagram, send it to the client to do actual drawing.
For example mxGraph library has a nice .NET component that builds XML for the diagram on the server and then client-side draws diagram based on that XML.
The above is a commercial products, but there're free alternatives out there as well.
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Which of these (https://stackoverflow.com/questions/492893/graph-drawing-c-library) libraries can be used to evaluate nodes coordinates? I mean I want to draw and manipulate graph by clicking on it to add some nodes or delete, and then evaluate coordinates using some lightweight library.
All I need is algorithm which could on dot file and speciefied layout (http://en.wikipedia.org/wiki/DOT_language) give me conformity of graph nodes and 2D points.
Prefferable languages: C++, C#, Java
I made a complete WPF MVVM sample of a "Nodes Editor" supporting drag and drop, and many interesting visual features. It looks like this:
Full Source Code on GitHub
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I am making windows based application where I do a lot of data processing and end up with list of coordinates and other information. I would like to use to plot markers, routes etc on a google map.
I believe that the google api is meant for web based applications.
I would like to keep the solution desktop based since that framework is best suited to do all the data processing I want.
Is there a clean, non third party based solution to use google maps and the api to do drawing and marking on the map from within the .net application?
You can use GreatMaps GMap.NET control for Microsoft's platforms.
it is across platform, open source .NET control from Microsoft.
check the below link to understand how to use GMap.Net control
GMap.NET Control
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I am looking for a professional tool that will enable me to implement an excel like formula engine.
I require support for custom functions, an editor (in winforms or WPF) which gives a descent user experience (Intellisense , auto complete, partial evaluation of the formula etc...)
All I could find so far are just back-end projects such as:
http://www.codeproject.com/Articles/17853/Implementing-an-Excel-like-formula-engine
http://www.codeproject.com/Articles/57264/Eval3-wrapper
And those do not provide any client side , only backend engine.
There are some Excel-formula-engines out there (mostly commercial) - but since you need a frontend too the only one I know of is SpreadsheetGear. Hope this helps...
Spreadsheetgear is one of the more established products. According to their site Microsoft also use their product?? It's expensive though.
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I am on a project where I have multiple users of a portal and they are connected to other users of the portal. Now we are asked to draw a “Social Network” relationship graph to see the relationships. The constraint is that this graph has to be seen in the web browser.
The graph has to be something like:
Is there any C# library or component to draw this type of graphs? We have already checked these:
http://flare.prefuse.org/
http://www.yworks.com/en/products_yfiles_practicalinfo_gallery.html
.NET graph library around?
http://quickgraph.codeplex.com/
https://graphsharp.codeplex.com/
http://research.microsoft.com/en-us/downloads/f1303e46-965f-401a-87c3-34e1331d32c5/default.aspx
http://sourceforge.net/projects/zedgraph/
But I want to check if you already used some other and your feedback.
I've used Northwoods Go.NET for many years and it has been great.
I've used Microsoft chart it's fine and free !
Maybe you can take a look to graphviz too : http://www.graphviz.org/
It can be expensive but Tom Sawyer Visualization, ActiveX edition is a solution to the problem.
Another great product I just stumbled across with HTML5 (canvas/SVG) support:
http://www.mindfusion.eu/features-netdiagram.html
They also have a pure client-side JavaScript library also with HTML5 support:
http://www.mindfusion.eu/jsdiagram.html
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I've been using the Silverlight Toolkit but I'm finding the quality lacking; in particular this memory leak / phantom point bug renders the Chart component completely unusable.
Can anyone recommend a good chart / graph component for Silverlight 4.0? I'm looking for one that provides:
multiple simultaneous series, both scatter and line
multi-select of points
configurable tool-tips
automatic axis scaling
real-time update of data
That last point sounds trivial but is tripping up the Silverlight Toolkit Chart; if you rapidly change the axis range, it sometimes leaves phantom points behind in addition to the points it should be displaying.
Take a look at Visifire. It supports all the above requested features.
You could try Visiblox.
(Disclaimer: I work for the company that develops it, but not on that team)
You could take a look at the Data Visualization suite offered by Infragistics. I'm not really a big fan of Infragistics but I have been impressed with some of their charting components.
http://samples.infragistics.com/sldv/ComponentOverview.aspx?cn=data-chart