Autocad Drawing Model Is Write Protected

Quick links to procedures on this page:


AutoCAD Drawing Database (DWG) and AutoCAD Drawing Interchange Format (DXF)

AutoCAD Drawing Database (DWG) files are vector files used as a native format for AutoCAD drawings.

The Drawing Interchange Format (DXF) is a tagged data representation of the information contained in an AutoCAD drawing file. The Drawing Interchange format is a native file format of AutoCAD. It has become a standard for exchanging CAD drawings and is supported by many CAD applications. The Drawing Interchange format is vector-based and supports up to 256 colors.

To import an AutoCAD Drawing Database file (DWG) or AutoCAD Drawing Interchange Format (DXF) Back to Top

1.

Click File Import.

2.

Locate the folder in which the file is stored.

3.

Do one of the following:

(Windows 7 and Windows 8) Choose DWG - AutoCAD (*.dwg) or DXF - AutoCAD (*.dxf) from the list box next to the File name box.

(Windows XP) Choose DWG - AutoCAD or DXF - AutoCAD from the Files of type list box.

6.

From the 3D projection list box in the Import AutoCAD file dialog box, choose a plane projection of a three-dimensional object as seen from a given focal point.

7.

In the Scaling area, enable one of the following options:

Automatic — scales the drawing using the scale of the AutoCAD source file

English (1 unit = 1 inch) — lets you scale the drawing in inches

Metric (1 unit = 1 mm) — lets you scale the drawing in millimeters

If you want to reduce the number of nodes on the imported object, enable the Auto-reduce nodes check box.

If the file is password protected, type the password in the Password box.

If views are specified in your file, they appear automatically in the 3D projection list box.

If your computer is missing a font that is included in a file you are importing, a PANOSE font matching dialog box appears and lets you substitute the font with a similar font.

To export an AutoCAD Drawing Database file (DWG) or an AutoCAD Drawing Interchange file (DXF) Back to Top

1.

Click File Export.

2.

Locate the folder in which you want to save the file.

3.

From the Save as type list box, choose one of the following options:

4.

Type a filename in the File name list box.

6.

In the Export to AutoCAD dialog box, choose an AutoCAD version from the Export version list box.

7.

Choose a unit of measure from the Export units list box.

8.

In the Export text as area, enable one of the following options:

Curves — lets you export text as curves

Text — lets you export text as editable characters

9.

In the Export bitmap as area, enable one of the options to export the bitmaps in a drawing to a supported bitmap format.

10.

In the Fill unmapped fills area, enable one of the following options:

Color — fills all unmapped fills with color. To change the color, click the Color picker and choose a color on the palette.

Unfilled — leaves unmapped fills unfilled

AutoCAD Data Interchange Format (DXF) technical notes Back to Top

The program supports AutoCAD files from version R2.5 to 2013.

Layers are retained on import and export.

Importing an AutoCAD DXF file

If a DXF file is too complex to import into Corel DESIGNER, you can configure your AutoCAD output device as an HP7475 plotter and perform a plot-to-file of the drawing. Then you should be able to import this plot file using the import filter. Newer versions of AutoCAD allow you to create EPS files.

Corel graphics programs try to center the imported image. The image is scaled down if the coordinates are larger than the maximum page size available in Corel DESIGNER — 150 × 150 feet.

Model space pages are imported as master pages.

Solid and trace entities are filled.

Dimension lines are imported as curves, not as dimension objects.

A point is imported as an ellipse of minimum size.

Files exported as "Entities only" may not appear as expected in the Corel program because of a lack of header information.

Imported AutoCAD files that contain formatted paragraph text preserve text formatting such as spacing, alignment, and indents.

Justification of text entries may not be preserved, especially if fonts are replaced in the imported files. For best results, avoid justification of text.

If the DXF file contains a font that is not on the user's computer, the PANOSE font matching dialog box lets the user replace the font with an available one.

Lines with a number of points that exceed the maximum supported in Corel DESIGNER will be broken into multiple lines, and their fills will be dropped.

3D solids are not directly supported in Corel DESIGNER. Users can import 3D solids with the 3D Import program.

Exporting an AutoCAD DXF file

Corel DESIGNER saves drawings in a vector format accepted by computer-aided design/computer-aided manufacturing (CAD/CAM) programs and devices, such as AutoCAD and certain computer-driven sign and glass cutters.

Password protection is not available in the exported files.

Only the outlines of objects are exported.

Filled objects with no outlines have an outline appended to them on export.

All text is exported by using a generic font. Text formatting is not preserved.

AutoCAD Drawing Database (DWG) technical notes Back to Top

Corel DESIGNER can import AutoCAD files from version R2.5 to 2013 and export AutoCAD files from version R2.5 to 2013.

If the DWG file contains a font that is not on your computer, the PANOSE font matching dialog box lets you replace the font with an available one.

Password protection is not available in the exported files.



Copyright 2013 Corel Corporation. All rights reserved.

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Source: http://product.corel.com/help/Designer/540224261/Main/EN/Doc/Corel-DESIGNER-AutoCAD-Drawing-Database-DWG-and-AutoCAD-Drawing-Interchange-Format.html

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