.NET

[#1]

I am attempting to create an ASP.NET web application (C#, VS 2010) that will load a floor plan (.dwg file) and dynamically place a "marker " of some type on the floorplan to identify the location of some object not shown in the original drawing.

I do not want the user to need to have AutoCAD loaded on their computers for this to work. Is this possible?

Thanks in advance

[#2]

You would need some way of modifying the file directly,

By using RealDWG

http://usa.autodesk.com/adsk/servlet/index?siteID=123112&id=770257

or Open DWG

http://www.opendwg.org/ 

[#3]

Even you have RealDwg lisenced to run at the web server end, you still cannot present a *.DWG to a user with a ASP.NET application, that is, user cannot interact with a *.dwg file visually in a browser.

To make a pure web application, you need to publish a *.dwg into *.dwf file and embed "Autodesk Design Review" browser plug-in in a web page. However, I am not sure if the plug-in can post back to the web server with user input, so that the backend web server can use RealDwg to modify the corresponding *.dwg file according to the recieved user input.

[#4]

how to call another acad function (example : TRIM) in my C++ function ?

thanks !

[#5]

Take a look at the following Component I use on our web site:

http://www.woutware.com/cadlib4.0.html

You may find what you need with it.