The term device independent means that the bitmap specifies pixel color in a form independent of the method used by a display to represent color. jpeg the preferred image file format with the advent of digital cameras.īitmap files are housed in a device-independent bitmap (DIB) format. bhp file, this is becoming less common with. Historically when you saved an image on your home PC you might have saved it as a. The term bitmap was originally coined in computer programming to refer to a map of bits. The format is more commonly know as Bitmap files.
Various group codes allow for the definition of the start and end points, centre point and extrusion directions.īMP is a standard image file format which was historically used by computers running the Windows operating system. For example there are a large number of group codes related to the creation of an ellipse. The data contained within a DXF is known as tagged data which means that the tags identify how the data should be interpreted. These include the Header which contains file property information, Classes, Tables, Entities, Blocks and Thumbnail Image section. The market leading popularity of AutoCAD has also reduced the requirement for an application independent format.ĭXF files are organised in way that allows the files to be opened by a normal text editor application.vA DXF file has a common format containing a number of sections. However in recent years the usefulness of DXF format has reduced due to DXF not being able to support more advanced CAD elements such as dynamic blocks. This was particularly important for early versions of CAD as reverse engineering of the closely guarded DWG format was limited.
The DXF file format was created by Autodesk in 1982 and the intention was to create a format that was independent of CAD applications and therefore eased the difficulties of sharing files created by different applications.
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