A Practical Sample of Building a Custom User Interactive AutoCAD Command

Writing code to define a custom command is as easy as decorating class/method with [CommandClass]/[CommandMethod] attributes. But making the command user friendly and error-proof involves taking many factors into account while actually implementing the process of the command execution, which may warrant far more code than originally expected. This instruction demo will show the development of a custom “FILLET” command in detail with AutoCAD .NET API code.