Re: [libredwg] [bug #28502] help

[address@hidden]

I have a suggestion :

1. we should develop a standard set of tests, one per feature type. We
would know exactly what is in each test case.
we can use the svg test cases as well or other tests.

2. We would produce a dwg file, and dxf file with each version of
autocad for each test case.

3. Then we would create a markup tool to dump out the dwg into some
ascii representation and markup each part of the file, how it is
decoded, what the content is, where it came from.

Does anyone have autocad and can help with this?

mike

On Wed, Jan 6, 2010 at 9:27 PM, address@hidden
<address@hidden> wrote:
> http://parchive.sourceforge.net/
> The technology is based on a 'Reed-Solomon Code' implementation that
> allows for recovery of any 'X' real data-blocks for 'X' parity
> data-blocks present. (Data-blocks referring to files OR much smaller
> virtual slices of files).
>
> On Wed, Jan 6, 2010 at 9:10 PM, address@hidden
> <address@hidden> wrote:
>> I found three libs,
>>
>> https://sourceforge.net/projects/rscode/develop
>> http://www.ka9q.net/code/fec/
>> http://www.schifra.com/
>>
>> What about first a tool to just extract the RS blocks into a  file
>> that can be processed externally?
>>
>>
>> On Wed, Jan 6, 2010 at 8:58 PM, Felipe Sanches <address@hidden> wrote:
>>> we would ideally use a reed-solomon library to do that.
>>>
>>> On Wed, Jan 6, 2010 at 5:57 PM, Felipe Sanches <address@hidden> wrote:
>>>>
>>>> I asked myself this question when I reached this part of the DWG R2007
>>>> header parsing. At that time I concluded that the answer was: learn how
>>>> ReedSolomon encoding works. I tried. I understood it partially, but I 
>>>> havent
>>>> yet been able to properly decode it. Be welcome to try!
>>>>
>>>> Felipe
>>>>
>>>> On Wed, Jan 6, 2010 at 5:27 PM, James Michael DuPont
>>>> <address@hidden> wrote:
>>>>>
>>>>> URL:
>>>>>  <http://savannah.gnu.org/bugs/?28502>
>>>>>
>>>>>                 Summary: help
>>>>>                 Project: LibreDWG
>>>>>            Submitted by: mdupont
>>>>>            Submitted on: Wed 06 Jan 2010 08:27:50 PM CET
>>>>>                Category: None
>>>>>                Severity: 3 - Normal
>>>>>              Item Group: None
>>>>>                  Status: None
>>>>>                 Privacy: Public
>>>>>             Assigned to: None
>>>>>             Open/Closed: Open
>>>>>         Discussion Lock: Any
>>>>>
>>>>>    _______________________________________________________
>>>>>
>>>>> Details:
>>>>>
>>>>> here is a file we want to convert :
>>>>> http://www.gimnechiske.org/files/Planimetria_de_Vitoria.dwg
>>>>>
>>>>>
>>>>> Here is the output :
>>>>> This file's version code is: AC1021
>>>>> WARNING: This version of LibreDWG is only capable of properly decoding
>>>>> version R2000 (code: AC1015) dwg-files.
>>>>> This file's version code is: AC1021
>>>>>  This version is not yet actively developed.
>>>>> It will probably crash and/or give you invalid output.
>>>>> 5 bytes of 0x00: 0x00 0x00 0x00 0x00 0x00
>>>>> Unknown: 0x19
>>>>> Byte 0x00, 0x01, or 0x03: 0x03
>>>>> Preview Address: 0x00000D20
>>>>> DwgVer: 27
>>>>> MaintRelease: 25
>>>>> Codepage: 30
>>>>> Unknown: 0x00 0x1B 0x19
>>>>> SecurityType: 0x00000000
>>>>> Unknown long: 0x00000000
>>>>> DWG Property Addr: 0x00000C80
>>>>> VBA Project Addr: 0x00000000
>>>>> 0x00000080: 0x00000080
>>>>> Application Info Address: 0x0000A380
>>>>> Reed-Solomon(255,239) encoded section:
>>>>>
>>>>> dc  0  0 d5 20 85  1  0  8 85  0  5 44  2 81 e5  0 40 f6 70 c7 45 60 6f
>>>>> 4f  4
>>>>>  a  a 60  3 5f 8c 82 43 67 68 30  2  b 49 49 66 53  0 92 d4  1 a0 62 b5
>>>>> 5f 6f
>>>>> c7 11  6 3a 81 92 30 7f 1d 36  2 db 4b 83 83 45 e0 35  5 6f ac d3  a  0
>>>>> 77 14
>>>>> 0  8 52  0  2 78  0  b 19  0  5 38  0  d 67  0  0  1 20 85 80  0  8 7f  0
>>>>>  5
>>>>> 8  2 81 87  0 40 19 70 c7 20 60 6f 7e  4  a  9 60  3 40 8c 82 77 67 68  0
>>>>>  2
>>>>> b  2 49 66 f8  0 92 37  1 a0 8c b5 5f 50 c7 11 6d 3a 81 d2 30 7f a4 36  2
>>>>> 17
>>>>> 4b 83  0 45 e0 a6  5 6f 60 d3  a  9 77 14  4  8 52 77  2 78  9  b 19  1
>>>>>  5 38
>>>>> 77  d 67  1  0  1  e 85 80 77  8 7f  0  5  8  2 81 87 72 40 19 64 c7 20
>>>>> 7b 6f
>>>>> 7e c2  a  9 d9  3 40 d5 82 77 96 68  0 da  b  2 45 66 f8 f0 92 37 60 a0
>>>>> 8c  9
>>>>> 5f 50 7f 11 6d 77 81 d2 29 7f a4 7e  2 17 77 83  0  2 e0 a6 c7 6f 60 f4
>>>>>  a  9
>>>>> 67 14  4  8 52 77  0 78  9 13 19  1 9d 38 77 ef 67  1 f9  1  e e5 80 77
>>>>> 11 7f
>>>>> 0 b6  8  2 10 87 72 76 19 64  8 20 7b  4 7e c2  2  9 d9 91 40 d5  8 77 96
>>>>>  3
>>>>> 0 da 93  2 45  0 f8 f0  1 37 60  6 8c  9  0 50 7f 4f 6d 77 87 d2 29 10 a4
>>>>> 7e
>>>>> 79 17 77 20  0  2 66 a6 c7  0 60 f4  f  9 67  1  4  8 62 77  0 df  9 13
>>>>> a0  1
>>>>> 9d bf 77 ef  d  1 f9 ff  e e5 db 77 11 36  0 b6 9e  2 10 b7 72 76  5 64
>>>>>  8 75
>>>>> 7b  4 5b c2  2 77 d9 91 55 d5  8 bb 96  3 19 da 93 c5 45  0  c f0  1 42
>>>>> 60  6
>>>>> 46  9  0 6d 7f 4f 58 77 87 c7 29 10  0 7e 79  0 77 20  0  2 66  0 c7  0
>>>>> e9 f4
>>>>> f 6f 67  1 b5  8 62 4c  0 df b2 13 a0 64 9d bf eb ef  d e7 f9 ff d7 e5 db
>>>>> 72
>>>>> 11 36 98 b6 9e e5 10 b7 a7 76  5 c1  8 75 64  4 5b be  2 77 1d 91 55 b3
>>>>>  8 bb
>>>>> e4  3 19 f0 93 c5 db  0  c b8  1 42 e7  6 46 fb  0 6d 3e 4f 58 85 87 c7
>>>>> 3f 10
>>>>> 0 92 79  0 b3 20  0 ac 66  0  0  0 dc a6  f d5 dd  1  1 da 62 85 85 df 44
>>>>> 3f
>>>>> a0 e5 3a bf f6 9e  d 45 fa ff 4f e9 db  a 87 36 5f ed 9e 43 1b b7 30 ce
>>>>>  5 49
>>>>> 1f 75 53 59 5b d4 bc 77 62 71 55 6f e2 bb  6 36 19 92 d2 c5 1d c2  c db
>>>>> d2 42
>>>>> 83  f 46 35 75 6d ac c8 58  0 83 c7  0 16  0  0 5d  0  0 56  0  0 59  0
>>>>>  0 73
>>>>> dc  0 53 d5 20 59  1  0 c8 85  0 99 44  2  e e5  0 2e f6 70 f9 45 60 b3
>>>>> 4f  4
>>>>> 86  a 60 90 5f 8c 19 43 67 55 30  2 53 49 49 eb 53  0 55 d4  1 7d 62 b5
>>>>> 21 6f
>>>>> c7 bc  6 3a 67 92 30  2 1d 36 ab db 4b 46 83 45 53 35  5 88 ac d3 8a  0
>>>>> 77 7e
>>>>> 0  8 70  0  2 aa  0  b d9  0  5 61  0  d ac e5 f5 56 57 fc 17 de da 31 6b
>>>>> 55
>>>>> 5d 9c b8 92 35  9 d2 7c a9 ff 3d 34 8a fb 92  7 ef 88  7 21 47 3a 11 31
>>>>> 64 6c
>>>>> 27 21 d0 f9 44 c8 4a 91 87 6e f9 e9 6f b5 4c b2 64 eb e7 d7 72 98 e5 a7
>>>>> c1 64
>>>>> be 1d b3 e4 f0 db b8 e7 fb 3e 85 3f 92 b3 ac  0 a6 dd da 85 3f 3a 9e fa
>>>>> e9 87
>>>>> ed 1b ce 1f 59 bc 71 e2 36 d2 c2 d2  f 75 c8 83 16 5d 56 59 73 53 59 c8
>>>>> 99  e
>>>>> 2e f9 b3 86 90 19 55 53 eb 55 7d 21 bc 67  2 ab 46 53 88 8a 7e 70 aa d9
>>>>> 61 ac
>>>>> b7 2d 6c 59  c 10 27 36 80 5f e2  3 f2 bc 48 e5 8c 1c 46 10 9a e5 fa 9c
>>>>> f4 8e
>>>>> 16 aa fd 91 e7 cc 84 f7 b8 66 a3 5b f9 fa 83 5b 7f 29 65 99 b8 1a ed d5
>>>>> d3  1
>>>>> ec f7 16 8a a5 23 9d ce 16 5e f9  8 b4 ed d7 7f eb 6e f6 15 44 2c 56  e
>>>>> 90 71
>>>>> fc 4c ca 3f cb 57 18 98 2f 80 29 69 8a 78 f2 41 dd b6 7d 25 1b fe fe  a
>>>>> fe  2
>>>>> ff b6 d1 97 24 b1 10 c6 3e 99 16 52 ba 77 2c 8f 64 30 4e 3c aa c9
>>>>>
>>>>> Decoding of DWG version R2007 header is not fully implemented yet.
>>>>> Failed to decode file:
>>>>> ../../openstreetmap/brazil/Planimetria_de_Vitoria.dwg
>>>>>
>>>>>
>>>>> please help.
>>>>> What do I have to do to get this working?
>>>>>
>>>>> mike
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>    _______________________________________________________
>>>>>
>>>>> Reply to this item at:
>>>>>
>>>>>  <http://savannah.gnu.org/bugs/?28502>
>>>>>
>>>>> _______________________________________________
>>>>>  Message sent via/by Savannah
>>>>>  http://savannah.gnu.org/
>>>>>
>>>>>
>>>>>
>>>>
>>>
>>>
>>
>