Introduction In my work, I always use the past Civil3d template to continue my design, hence the initial number of some

Introduction After learning how to select the objects from the drawings, now we begin to learn how to do something to th

Introduction Last time, we have learnt selection, but what if we have to filter certain types of object from the selecti

Introduction Today we will learn how to interact with AutoCAD. Select Objects in the Drawing Area You can select objects

Introduction After learning how to draw a line with AutoCAD API, we can use similar way to create other drawable objects

Class Inheritance Tree Firstly, we need to understand how the drawing objects inheritance relationship. Line Drawing 01

Before entering the main topic, I would like to mention some background information. Understand the AutoCAD Object Hiera

01.Start up with the Environment Language: C# IDE: VS2019 CAD: 2019 The relationship between CAD edition and product c

I have applied AutoCAD .NetAPI for writing some tools in the recent several month, but I still have not understand it so

Recently I create a custom #Civil3D ribbon menu with #.NET API for the script I wrote. Now it is easier to use and can s