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File formats
Published in Bob McFarlane, Beginning AutoCAD 2006, 2006
DXF are Drawing Interchange Format files: are use for exporting drawing data to other CAD systems and/or CADCAM/CNC systemsconsist of ASCII or binary codehave the extension .dxf.
Computer Aided Drawing Techniques
Published in Mike Tooley, BTEC First Engineering, 2010
The features available from a modern 2D CAD package include the following: Various modes for creating lines, arcs, circles, ellipses, parallel line, angle bisectors, etc.Support (import and export) for standard CAD file formats (e.g. DXF).Standard and user-defined symbol libraries.Text in different fonts and sizes.Automatic dimensioning of distances, angles, diameters, and tolerances.Solid fills and hatching.Support for layers and blocks (which can be manipulated as a separate entity).Selection and modification tools (move, rotate, mirror, trim, stretch, etc.).Snapping to grid and to objects (endpoints, centres, intersections, etc.).Multiple undo and redo levels.Support for various units including metric, imperial, degrees, radians, etc.Import and export of bitmaps and other images in various format (e.g. BMP, JPEG, PNG, etc.).OLE (Object Linking and Embedding) compatibility (this means that a CAD drawing can be inserted and edited within any other OLE-compatible Windows application).
Morphological characterisation of ANSYS 3-D modelled aggregates
Published in International Journal of Pavement Engineering, 2022
Iqbal Marie, M. Mahdi, Randa Oqab Mujalli
Two orthogonal photos are also taken from two distinct planes. The aggregate was first positioned in its principal plane, and the first image was taken, to capture the length and width (L and I). The aggregate is then turned 90 degrees around its primary axis to capture the side of the aggregate depicted in the second image. As a result, the aggregate thickness (s) is determined. Particle dimensions, perimeter and projected area can be measured quickly by first converting the image to vector with a vectorizer and saving it in DXF format. The DXF files were opened in AutoCAD. The specified projected area and perimeter of the aggregate 2-D projections were determined and as a result of this step, sixty particles’ area and perimeter were measured. Figure 1(a) depicts the projected pictures of coarse aggregate particles of varying sizes while Figure 2(a) shows a sample of the outline of a vectorised image which has been transferred to AutoCAD to determine the dimensions, perimeter and the projected area of each particle are shown in Figure 2(b). The surface area and volume of each particle are essential 3-D measurements, however since the measurement of the surface area is complicated, then the surface area and volume information are obtained from ANSYS for the virtual generated aggregates and will be compared to measurements found within the literature.
An automated system for electrical power symbol placement in electrical plan drawing
Published in Automatika, 2022
To create a dataset, 1020 furnishing symbol blocks for 23 classes were collected from dozens of real-world architectural floor plan drawings. The class names are given in Table 2. These symbols were then saved in a DXF file to be used and/or expanded publicly by researchers. A DXF (drawing interchange or exchange format) file is an either binary or text-based representation of a drawing file used to interchange drawing data between CAD programs. The DXF format specifications are determined by the company Autodesk [32].