ArcEngine+3D二次开发实例，包含C#和VB两种开发语言-ArcEngine+3 D examples of secondary development, including C# and VB both languages

利用ARCENGINE实现平台的手动画线功能和根据已有线画平行线的功能。-Use of hand animation ARCENGINE implementation platform based on the existing cable line features and the function of parallel lines drawn.