We have dedicated a lot of investigation time and effort to make improvements to importing DWG/DXF files. Some of the enhancements are more significant than others, but overall, the sum of all AutoCAD importing improvements should resolve many issues experienced when importing DWG/DXF files. Vivien 2018 also supports DWG/DXF files from AutoCAD 2018.
We have investigated numerous DWG files, and have identified a few areas of the file import process that could be optimized. As a result, memory requirements during the importing of DWG files is much lower than before, and this should result in better-performing files (and less crashes due to insufficient memory).
Text and MText within a block are now imported as separate Text Labels in Vivien. Previously, Text and MText within a block were ignored.
Attribute text is replaced correctly
Previously, Attributes needed to be stripped out of DWG files being imported, because only their variables, not their values, could be imported. This is no longer necessary, as Attributes’ values are now converted to Vivien Text Labels; in other words, the text that appears when the DWG file is opened in AutoCAD will appear in Vivien once the import is complete.
Special logic relating to Layer 0 in nested blocks imported as Library Items is now respected in Vivien.
This relates to ignoring some objects within a block whose visibility in AutoCAD is controlled by Frozen or Off layers. For some blocks, this greatly improves the accuracy of what geometry is visible in AutoCAD vs. what is included in the Library Item in Vivien.
A new column has been added to the Layer step in the wizard, showing the state of the layer in the DXF/DWG file.
Frozen layers are deselected for import by default. Off layers are selected but when imported will be set to Not Visible in Vivien. Note: Vivien Library Items and Layers work in a different way from AutoCAD blocks and layers. As a result, some objects will not be visible until their layers are turned on.