Changes to the Program

Version 1.6: released March 14, 1994

• Viewer added to display object in wireframe or colored polygons.

• Changed routine that decodes DXF polyline to eliminate extra vertices, edges and faces.

• Some programs do not include a layer name with each DXF entity and this caused an error when decoding. A default name is now entered.

Version 1.5: released January 13, 1994

• Made changes to the calculations for polylines with width.

• Made changes to the special DXF to DXF conversion routine.

• Faster reading for LightWave, VideoScape, Sculpt and DXF Polyface objects.

• When memory was low and the 'Out of Memory' requester was shown, a 'Recoverable Alert' warning was given by AmigaDOS (only when the programs Enforcer and Mungwall were operating at the same time) when AccuTrans 3D closed the AmigaGuide library. This problem is fixed.

Version 1.4: released October 2, 1993

• Changed interface so that fewer requester windows open when reading and writing files.

• Special DXF to DXF conversion routine added. DXF files can contain errors and when this occurs AutoCAD will not load them. This routine attempts to patch the errors. Also files can be sorted and saved by layer color number rather than by layer name.

Version 1.3: released August 6, 1993

• 2D entities can now be saved to a DXF file as well as to an Imagine file.

• Fixed problem: A polyline with width that was closed and had the last line segment, joining the last vertex to the first vertex, parallel to either the X or Y axis showed no width for that segment.

• Fixed Problem: A polygon mesh closed in the M and N directions had some faces calculated wrong. This problem was caused by the optimizer in SAS/C Version 6.3. Slight change of the code corrected the problem.

• AT3D preferences file is now at Version 2. The chunk ID is now followed by a chunk size (a ULONG) giving the number of bytes which follow in the chunk. Structure LayerPrefs has been changed to make it easier to add new attributes and for more efficient program code (code size is now reduced). Version 1 files can not be read and there is no conversion program supplied to change Version 1 files.

Version 1.2: released July 28, 1993

• Compiler changed from SAS/C Version 6.2 to 6.3.

• Fixed problem with multi-colored Imagine/Turbo Silver 3.0 objects where certain combination of names could prevent some data from being saved.

• Reduced size of code with some minor speed improvements.

Version 1.1: released July 22, 1993

• Reading of files is now faster. DXF files are read twice as fast except for decoding Polyface entities. Other file types read more than twice as fast. When decoding and checking for duplicate edges for LightWave and VideoScape files, this algorithm is still slow.

• An ASCII text file can now be written after an object has been saved which contains the names of the files opened and saved, the input and output scale factors, center point adjustment, etc.

• Fixed problem that you could not exit 'Building DXF Blocks' if an 'Out of Memory' warning was given.

Version 1.0: released July 20, 1993

• On-line help has changes not listed in the printed manual.