Tuesday 13 December 2011

History of Autocad Drawings

many uses and benefits of AutoCAD software to help alleviate and solve technical drawing problems.
AutoCAD has undergone many changes in terms of technology and making it easier for users to look now.

so we must know and understand the history of the formation of autocad software. 
AutoCAD drawing software has been around since 1982. The CAD part of the name stands for “computer aided design” or “computer aided drafting.” AutoCAD commands lets users create drawings using components like lines, circles, and polygons. In fact even complex AutoCAD drawings are made from these basic components.


Lines are the simplest AutoCAD drawing commands. The user can draw a line between any two points within the drawing area. Many users start with lines, because they can create a construction line framework that can be used for the rest of the drawing. Creating AutoCAD drawings is not unlike making drawings on a drawing board. AutoCAD creates lines known as vectors. Vector drawings are preferred when precision is required because they remain accurate regardless of the scale of the drawing.

Polylines in AutoCAD are more complex basic drawings than lines. One polyline may be composed of several straight or arced segments, and they can be given line widths so as to appear solid. Polylines use up more disk space than an equivalent set of lines, so it is usually better to use lines when possible and reserving polylines for special requirements. Some tasks are easier with polylines, and some are easier with basic lines. With experience in AutoCAD drawing, these distinctions become more evident.

Rectangles, donuts, polygons, circles, and arcs are the basic tools used in creating an AutoCAD drawing. The Revcloud command is used to make freehand closed shapes. AutoCAD can also be used to create 3D drawings.