Leica Disto S910 DXF

[Hamish Harvey]

Hi,

I'm trying to read a DXF file from a leica disto S910 with ezdxf. I'm not getting very far. Would appreciate any pointers.

The disto records 3D points and, as far as a can tell, joins them with lines. It also annotates each point with text showing the file name of a jpg image.

I can read the file with ezdxf, enumerate the entities, and get their types (POINT, LINE, TEXT). However if I ask for the location of a point:

e.get_dxf_attrib('location')

I'm told "DXFAttrib 'location' does not exist."

I've attached an example file.

Thanks for any hints. 

Hamish

[Manfred Moitzi]

Hi!

This is a wired situation, because this DXF file is chimera, it is a DXF12 format with structure parts of the later DXF13 format like 

entity subclass marker (100, AcDbPoint) - and sadly AutoCAD opens this crap.

ezdxf can not read this file correctly, it also doesn't help to just change the DXF version of the file (editig $ACADVER from AC1009 to AC1012).

But you can use my dxfgrabber package, which reads this shit:

import dxfgrabber

dwg = dxfgrabber.readfile("Leica_Disto_S910.dxf")

points = (entity for entity in dwg.modelspace() if entity.dxftype == 'POINT')

for num, point in enumerate(points):

    print("#{num}: {location}".format(num=num, location=point.point))

Best regards,

Manfred

[Manfred Moitzi]

Added a repair function to ezdxf (0.7.7 not released yet):

import ezdxf

dwg = ezdxf.readfile("Leica_Disto_S910.dxf")

msp = dwg.modelspace()

for num, point in enumerate(msp.query('POINT')):

    print("#{num}: {location}".format(num=num, location=point.dxf.location))

dwg.saveas("Leica_Disto_S910_by_ezdxf.dxf")  # saves a valid DXF R12 file

edits:

• renamed repair function
• added a check function
• ezdxf saves a valid DXF R12 file
  

edit:

• integrated check for malformed DXF R12 files into general drawing setup process

Best regards,

Manfred

[Hamish Harvey]

Hi Manfred,

Thanks for the quick response! I got to dxf grabber with a bit more googling last night and found that it worked. I didn’t realise the same person was responsible for both. Thanks for the pointer, and for the repair function!

I was interested to find that FreeCAD read it without complaint but produced partial results - not complete garbage, but not all of the lines in the file appeared.

Hamish

On Sat, May 14, 2016 at 4:30 PM, Manfred Moitzi <manfred...@gmail.com> wrote:

Added a repair function to ezdxf (0.7.7 not released yet):

import ezdxf

from ezdxf.lldxf.repair import repair_leica_disto_dxf12

dwg = ezdxf.readfile("Leica_Disto_S910.dxf")

repair_leica_disto_dxf12(dwg)

msp = dwg.modelspace()

for num, point in enumerate(msp.query('POINT')):

    print("#{num}: {location}".format(num=num, location=point.dxf.location))

Best regards,

Manfred

Am Freitag, 13. Mai 2016 18:09:11 UTC+2 schrieb Hamish Harvey:

Hi,

I'm trying to read a DXF file from a leica disto S910 with ezdxf. I'm not getting very far. Would appreciate any pointers.

The disto records 3D points and, as far as a can tell, joins them with lines. It also annotates each point with text showing the file name of a jpg image.

I can read the file with ezdxf, enumerate the entities, and get their types (POINT, LINE, TEXT). However if I ask for the location of a point:

e.get_dxf_attrib('location')

I'm told "DXFAttrib 'location' does not exist."

I've attached an example file.

Thanks for any hints. 

Hamish

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