DWG Enhancements – Preserve Original Data and Block Position

ArchiCAD 16 New Features – DXF/DWG Enhancements
Preserve Original Data and Block Position

If we import DWG blocks to ArchiCAD and then re-export them without editing, ArchiCAD can store the original blocks so unmodified DWG blocks remain intact.

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Title image:
Vennesla Library & Cultural Center, Norway
Helen & Hard, www.hha.no
Photo ©Emile Ashley

DXF, DWG Data Exchange

 

1.

Preserve Original Data and Block Position

 

If we import DWG blocks to ArchiCAD and then re-export them without editing, ArchiCAD can store the original blocks so unmodified DWG blocks remain intact.

Let’s open this DWG file called “Original AutoCAD” in AutoCAD. This file represents a hotel room with a couple of AutoCAD plumbing fixtures in the bathroom. These fixtures are AutoCAD blocks with editable attributes.

Let’s close this file in AutoCAD and open it in ArchiCAD.

Let’s select the File,… File Special,… DXF, DWG Translation setup menu command.

Let’s select the “For Editable Import” translator from the list. Click the duplicate button to create a copy and then click the “rename” button to rename the newly created translator. Enter “05 Preserve Original Data” for the name and click the “Rename” button.

Let’s select the Drawing Unit Settings and check the checkbox on the right and choose meter for the value.

Let’s choose the Open options on the left and select the Library Parts from the first pop-up for AutoCAD blocks.

By choosing the Save option on the left we can select the AutoCAD file format that’s needed. Let’s select  2010 now.

Switch to the “Custom Functions”, ,… “Open extras” on the left side of the dialog and click the “Reload Functions” button on the right.

Let’s extend the “DWG, PLN, DWG Roundtrip support” and check the “Store Original Blocks” checkbox.

Let’s do the same, selecting the Save Extras custom function on the left, and click the “Save Settings and Close” button to close the dialog.

Let’s select the File, Open command. Choose the dwg file format from the pop-up, choose the “Preserve Original Data” translator and open the previously closed “Original AutoCAD” dwg file.

Let’s accept and click ok on the appearing Partial open dialog and click the “do not change” button on the import dialog box to continue the process.

As we can see the same content opens just  as it did in AutoCAD earlier. Let’s select one of the objects and open the object settings dialog.

All AutoCAD attributes are available and editable on the Parameter tab page. Click Cancel to leave the dialog.

We will change the floor plan geometry. With the marquee tool select the left side of the hotel room and stretch it 800mm to the left.

Activate the File,… Save as,… menu command, select the dwg file format and the “Preserve Original Data” translator. Enter “Saved in ArchiCAD” for the name and click the save button.

Switch back to AutoCAD and open this file.

Let’s select one of the blocks and enter the attribute editor. As we can see, all the AutoCAD attributes were preserved after the roundtrip.

Also notice the original insertion points of blocks in the AutoCAD model have been preserved so blocks will be inserted in the same position as their original starting-point.

In this way, consultants working in ArchiCAD can edit parts of the imported DXF, or DWG file, then export it back without overwriting the unchanged blocks.

 

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