Architects and design planners very rarely design on drafting table. Nowadays, computer-aided design (CAD) is one of the preferred design tool for most people. When we look back twenty years ago CAD was two-dimensional, but three-dimensional CAD on the other hand has become one of the most viable option. A few decisions must be made to choose the best option.
As the name implies, 2D CAD can is only able to draw two-dimensional objects, and this type of CAD is best option for drawing traditional orthographic projections, like plans, sections and elevations. Three-dimensional drawings on the other hand can also be produced with 2D CAD with the help of traditional perspective techniques.
3D CAD allows designer to model objects and at the same time produce many views of the design by simply rotating model. Orthographic projections can even be produced with special cameras and the picture planes.
Almost all computers are able to use 2D CAD software, with that, the computer’s specifications must be checked in order to verify particular 3D CAD program’s use. Many 3D CAD programs even require a higher-performing computer.
3D CAD even offers more and more functions for the designer. These functions include 3D arrays and also special reference views, But on the other hand you may find you do not need all of the functionality of the three-dimensional application, and also 2D may suit your needs. For many people, the basic functions, such as layers, linetypes and lineweights, these are all that is required, and most people never use three-dimensional tools and features.
Even though three-dimensional perspectives can be constructed on 2D CAD software, there isn’t rendering capabilities available for these specific types of programs. The perspective must be exported to separate paint program in order to complete a rendering. Instead, many 3D CAD programs are able to render lifelike images of constructed model within the application.
Because technology is more advanced, 3D CAD is much more expensive compared to 2D CAD solutions. However, prices for both types of CAD have dropped, so purchasing one type of program is feasible for many.
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