Computer Aided 3D Solution to Comprehensive Problems in Descriptive Geometry

How to solving comprehensive problems in descriptive geometry is always a difficult teaching point,because good abilities of graphic thinking and space logical thinking are required for the students.The orthograph can be transformed to the 3D graphics by using 3D functions in AutoCAD,thus all analysis and reasoning for the solution can be clearly visualized in 3D space,and then by baking to the 2D environment the solution can be easily made.Two examples are given to illustrate detailed drawing steps for solution-making,which can greatly enhance the students’ spatial analysis abilities and is easy to master.