How to get the Model_Space and Paper_Space blocks?

[alanchen123]

I am using RealDWG.

Based on Autodesk documents, each DWG file will contain a Model_Space block and a Paper_Space block. Then, how to get it via RealDWG?

Thanks

[StephenPreston]

Same as you would for any BlockTableRecord - open the BlockTable and access the BlockTableRecord from there. The ObjectARX Training labs posted to www.autodesk.com/developautocad and the ObjectARX sampels have code demonstrating this.

[alanchen123]

Should I use the name "*Model_Space" or lowercase name "*model_space" to get the block?

[Alexander.Rivilis]

You can use macro ACDB_MODEL_SPACE defined in acdb.h

[DiningPhilosopher]

It's easier to just use the SymbolUtilityServices class, which has a method that returns the ObjectId of the model space BlockTableRecord.

For a specific PaperSpace layout block, it can depend on whether you want the block for a specific layout given its name, as the block names for paper space layout blocks aren't really useful for much.

[maisoui]

Hi,

You should use this:

Acad::ErrorStatus es;
AcDbDatabase * pDatabase = acdbHostApplicationServices()->workingDatabase();
AcDbBlockTableRecordPointer pBlockTableRecord(ACDB_MODEL_SPACE, pDatabase, AcDb::kForRead);
if((es = pBlockTableRecord.openStatus()) != Acad::eOk)
	return;

...

Regards,

Jonathan