- Its stands for Drawing Exchange Format.
- It is open source CAD file format.
- It was developed by Autodesk in 1982.
- DXF file format is a vector graphic file format.
- It is used for sharing 2D-3D drawings between Autocad and other programs.
- The latest version supports both ASCII and binary forms.
Types of drawing information in DXF file format:
- Text
- Line, dotted lines, arrows and curved lines
- Circles
- Polygons, like rectangle and stars
Representation of data using group codes and values:
- Every variable in DXF file is associated with a group code.
- Group codes ranging from 1 to 1071.
- Group code 2 is used for names, such as names of blocks.
- Group code 0 is refers to the start an entity or end of the file.
- Values associated with each variable are stored as an integer, floating point or a string.
File Structure:
- Header: Contains general information about drawing.
- Classes: Contains application defined information.
- Tables: Contains item definations.
- Blocks: Contains description of entities.
- Entities: Contains data of non-graphical objects.
- Thumb nail images: Contains preview of images.
Walk through of DXF file:
- You can actually open DXF files with any text editor such as Notepad.
Uses of DXF file:
- It is widely used in CAD software.
- An architectural designer, Store designer for his company sign on an Adobe illustrator file.
DXF editor:
DXF viewer:
Examples:
My notes images:
