Further Notes on Conversion (DXF/DWG Files)

In DXF files, hatching is contained in BLOCK assignments.

The scale of a drawing cannot be derived from a DXF file. All coordinates are normally saved in absolute values that are only adapted when a drawing is plotted.

Scale entries can however be made before a DXF file is read.

Set the value 1 for the unknown DXF scale. A graphically correct construction is created. The scale can then be correspondingly adapted when you process the construction. In this case, you can subsequently specify a global modification for character height.

If HEADER and BLOCK sections are not included in the DXF file, conversion can only be correctly carried out if the file does not contain any BLOCK assignments. You can check to see whether a HEADER section is present. The first four lines of a DXF file should be:

0

Section

2

HEADER

Any errors that may occur are recorded in the log file \TEMP\ACADHCAD.LOG. In earlier versions, the name of the file was ACADHCAD.ERR or ACADHCAK.FEL.

Currently the following variables and DXF elements can be processed by HiCAD:

DXF elements that do not have the corresponding or similar equivalent in HiCAD, can not always be represented.

DXF/DWG files may contain PROXY elements that may contain a great deal of the geometric data. These elements are generated by an auxiliary AutoCad program and are needed for an exact representation.

Normally a proxy entity is entered in the DWG/DXF file; this differs basically from standard DXF syntax. It consists of 254-character lines containing coded hexadecimal data.

Proxy elements are read to HiCAD as subordinate parts. These parts are transferred under the name PROXY.

The transfer of PROXY entity elements can be activated or deactivated in the HCADACAD.DAT system file via 'PROXY' by selecting the parameter value 0 or 1 (default=1).

Proxy text parameter values can be set in the HCADACAD.DAT via STYLE PROXY.