AutoCAD
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This post takes the sample code shown in the last entry, converts it to VB.NET and adds in some code to access specific entity properties rather than simply calling list(). I won't step through the code this time, but here's the section of code that gets and dumps out the various entity properties: Dim ent […]
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Many AutoCAD commands that work on sets of entities support two styles of working: verb-noun or noun-verb. This basically means that if the user has pre-selected a set of entities (the "noun") and then launch the command (the "verb") then the command will not need to request the user select them. This is enabled using […]
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It's been a hectic week, between one thing and another, and I don't expect it to get better anytime soon: apart from anything else, my wife is due to give birth any day to our second child. We're both excited - and admittedly a little anxious - about it, and our 2 year-old seems to […]
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This was a topic suggested by Scott Underwood (thanks, Scott! 🙂 to look at COM vs. NET and go through their respective advantages and disadvantages… This is really an interesting discussion topic, and one that I'd like people to help turn into an interesting discussion. I can certainly talk about the differences and pros/cons of […]
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Clearly it's far from ideal to ask your users to load your application modules manually into AutoCAD whenever they need them, so over the years a variety of mechanisms have been put in place to enable automatic loading of applications – acad.lsp, acad.ads, acad.rx, the Startup Suite, to name but a few. The most elegant […]
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In my previous post I described how you could use the Autodesk.AutoCAD.Runtime.IExtensionApplication interface to implement initialization code in your .NET module. Building on this, we're now going to look at how use of the Autodesk.AutoCAD.Runtime.IExtensionApplication interface can also allow you - with very little effort - to optimize the architecture of your managed modules for […]
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It's very common to need to execute some code as your application modules are loaded, and then to clean-up as they get unloaded or as AutoCAD terminates. Managed AutoCAD applications can do this by implementing the Autodesk.AutoCAD.Runtime.IExtensionApplication interface, which require Initialize() and Terminate() methods. During the Initialize() method, you will typically want to set system […]
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One of the services ADN provides its members is representation of their wishes with Autodesk's Engineering teams, helping influence product direction. For instance, each year we run an API wishlist survey for a number of our products (this year it was AutoCAD, ADT, Revit, Inventor, and Map 3D). An online survey for each product gets […]
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Another case of planets aligning: two different people have asked me this question in two days... It's quite common for commands to require users to provide additional input during execution. This information might be passed in via a script or a (command) from LISP, or it may simply be typed manually or pasted in by […]
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In this earlier entry I showed some techniques for calling AutoCAD commands programmatically from ObjectARX and from VB(A). Thanks to Scott Underwood for proposing that I also mention calling commands from .NET, and also to Jorge Lopez for (in a strange coincidence) pinging me via IM this evening with the C# P/Invoke declarations for ads_queueexpr() […]