Export all Blocks as PNGs with transparent background

[bradley.wherry]

I have a series of blocks that I have created (approx 50) I would like to export them all separately as PNG files so I can use them in other software. 

Is there a way that I can automate this? or do it acutely and efficiently?

I have attached the file I have created

[baksconstructor]

Like this.

[Sea-Haven]

Easy make a layout say images. Get all blocks currently in model space. insert the block into your layout, zoom

extents, then plot, erase last and keep going till all blocks are done. Erase image layout.

Hopefully later today.

[daniel_cadext · Accepted solution]

You can do this with python.

1, you have to compute the aspect ratio, I just used 380x380 since yours is close to that.

2, Transparency is a bit of a hack, set a background color and mask it out

from pyrx import Rx, Ge, Gi, Gs, Db, Ap, Ed, Ax
import traceback
import wx #wxPython 

@Ap.Command()
def doit():
    try:
        
        db = Db.curDb()
        bt = Db.BlockTable(db.blockTableId())
        
        for name, id in bt.toDict().items():
            btr = Db.BlockTableRecord(id)
            if btr.isLayout():
                continue
            if btr.isAnonymous():
                continue
            if name.startswith('A$'):
                continue
            
            #id imageX imageY zoom background color 
            img: wx.Image = Gs.Core.getBlockImage(id, 380, 380, 1.0, [0, 0, 0])
            img.SetMaskColour(0,0,0)
            img.SetMask(True)
            img.SaveFile("E:\\temp\\Icons\\{}.png".format(name), wx.BITMAP_TYPE_PNG)
        
    except Exception as err:
        traceback.print_exception(err)

 

[Sea-Haven]

Good idea @daniel_cadext, one question to @bradley.wherry do you want all blocks in block table or just those that are used in the current dwg.

[bradley.wherry]

Thanks @daniel_cadext thats a great solution. I was attempting something similar, but my coding needs some work.