What is Auto CAD ? ans:- AutoCAD is a computer-aided design (CAD) program used for 2-D and 3-D design and drafting. AutoCAD is developed and marketed by Autodesk Inc. and was one of the initial CAD programs that could be executed on personal computers. Techopedia explainsAutoCAD AutoCAD was initially derived from a program called Interact, which was written in a proprietary language. The fist release of the software used only primitive entities such as polygons, circles, lines, arcs and text to construct complex objects. Later !! AutoCAD is a vector based drawing application intended for engineering purposes. Commands can be entered at a command line or through toolbars and menus. DWG Files AutoCAD drawings are saved using the DWG extension, and over the years this has become a standard format for exchanging technical drawings, to the extent that even programs such as Adobe Illustrator will recognise DWG files. AutoCAD also supports an even more widely recognised format called DXF which was specifically designed as an interchange format. Unfortunately, as AutoCAD has passed through numerous editions, the DWG format has upgraded to keep pace with newer features. The most recent format was released with AutoCAD 2012 and any files saved using this format cannot be opened by AutoCAD 2011, 2010, 2009 etc. Basic drawing tools Point Creates a symbol on the drawing that is tied to a specific point. It is defined by coordinates (x,y,z). It is not necessary to create points when you want to draw other geometric entities. Construction line tools Ray = A line with a defined starting point with infinte length at a specified slope. Xline = An infinite line with no start or end point at a specified slope. Base point can be snapped with middle point snap mode. Shortcut xl Polyline Polylines are the main business of most drawings. A polyline is made of numerous lines/arcs/or both segmented together into one selectable object. Polylines are quite versatile and the PEDIT(Polyline Edit) command can be used to access & more go hen.m.wikibooks.org/wiki/AutoCAD
Posted on: Sun, 09 Mar 2014 14:17:48 +0000
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