TRANSITION FROM 2D TO 3D WITH GEOGEBRA

Abstract

This article presents the definition of projection plane, its importance for the geometry constructions used in civil engineering and comparative analysis of three opportunities for creating a three dimensional basis, used in drawing such a plane. First method consists of transforming affine and orthonormal coordinates and its application in GeoGebra is presented. Second method, using combination of spherical and polar coordinates in space, is introduced. The third suggested method is an application of descriptive geometry for transforming 2D to 3D and a new method of forming a plane of projection, which will be used later in the reviewed example below. The example shows how GeoGebra software can be used in technical drawing used in civil engineering.

Keywords

• technical drawing used in civil engineering
• rotation
• slope
• modeling
• isometric
• planometric
• paraline
• descriptive geometry
• projection
• plane of projection