I got this: koo mi n o ni ^*+0;:,4 ^*+0\^[ nh ^LR iqoqmqhoml QK mk K7* P<+ ml nhejiekg moog n fqfffffffffffffffj:rooh n:rono =0;& {rn {n {rn {rn | 3*2/ {rn {rn {m {o | ,7:33 {rn {rn {rn {l {rn {n | 9><: {rn {rn {k {m {rn {j 90-(>-; ;0*=3: 0*+ | 300/ {rn {rn {i {l | /3>1:r,*-9><: {rn rjmlkqngiiifolnmhof nfigqhiiofkljigimi o o o n n o o 90-(>-;@) V V V V | <0:;8: {rn {h {g {rn {f -:):-,:; {k {rn | <0:;8: {rn {no {i {rn {nn -:):-,:; {k {rn | <0:;8: {rn {i {no {rn {nm -:):-,:; {k {rn | :;8: {rn {nl {nk {i {nj 90-(>-; | <0:;8: {rn {g {h {rn {ni -:):-,:; {k {rn | :;8: {rn {nh {nl {h {ng 90-(>-; | :;8: {rn {nk {nf {g {mo 90-(>-; | ):-+:' {rn {f {mn | ):-+:' {rn {f {mm | ,+->687+r<*-): {rn rigliqllnkglinlhgh lfglqllffhfojiiing o n o o V V | :;8: {rn {nf {nh {no {ml 90-(>-; | ):-+:' {rn {ni {mk | ,+->687+r<*-): {rn rigliqllnkglinlhgh rkjqgohhfolkmfliikm o o n o V V | ):-+:' {rn {nm {mj | ,+->687+r<*-): {rn rlilmqokngjkkkghjkh lfglqllffhfojiiing o o rn o V V | /061+ {rn rigliqllnkglinlhgh lfglqllffhfojiiing o | /061+ {rn rlilmqokngjkkkghjkh lfglqllffhfojiiing o | ,+->687+r<*-): {rn rlilmqokngjkkkghjkh rkjqgohhfolkmfliikm o rn o o V V | /061+ {rn rigliqllnkglinlhgh rkjqgohhfolkmfliikm o | /061+ {rn rlilmqokngjkkkghjkh rkjqgohhfolkmfliikm o |
I am not sure whether this is correct, though. by applying the de-obfuscation algorithms proposed by him I've got this, which looks good: 400 26 1 0 ��16 Autodesk AutoCAD 17 ASM 6.0.2.7023 NT 24 Thu Oct 23 17:56:48 2008 ��1 9.9999999999999995e-007 1e-010 ��body $-1 $1 $-1 $-1 #��lump $-1 $-1 $2 $0 #��shell $-1 $-1 $-1 $3 $-1 $1 #��face $-1 $-1 $4 $2 $-1 $5 forward double out #��loop $-1 $-1 $6 $3 #��plane-surface $-1 -5234.1866690312709 1968.7660943568626 0 0 0 1 1 0 0 forward_v I I I I #��coedge $-1 $7 $8 $-1 $9 reversed $4 $-1 #��coedge $-1 $10 $6 $-1 $11 reversed $4 $-1 #��coedge $-1 $6 $10 $-1 $12 reversed $4 $-1 #��edge $-1 $13 $14 $6 $15 forward #��coedge $-1 $8 $7 $-1 $16 reversed $4 $-1 #��edge $-1 $17 $13 $7 $18 forward #��edge $-1 $14 $19 $8 $20 forward #��vertex $-1 $9 $21 #��vertex $-1 $9 $22 #��straight-curve $-1 -6836.331483613787 3983.3399790566618 0 1 0 0 I I #��edge $-1 $19 $17 $10 $23 forward #��vertex $-1 $16 $24 #��straight-curve $-1 -6836.331483613787 -45.807790342936642 0 0 1 0 I I #��vertex $-1 $12 $25 #��straight-curve $-1 -3632.0418544487547 3983.3399790566618 0 0 -1 0 I I #��point $-1 -6836.331483613787 3983.3399790566618 0 #��point $-1 -3632.0418544487547 3983.3399790566618 0 #��straight-curve $-1 -3632.0418544487547 -45.807790342936642 0 -1 0 0 I I #��point $-1 -6836.331483613787 -45.807790342936642 0 #��point $-1 -3632.0418544487547 -45.807790342936642 0 #�� by changing the algorithm to: for (j=0;j<FIELD_VALUE(block_size[i]);j++){ if (FIELD_VALUE(sat_data[i][j]<=32)) fprintf(stderr, "%c", FIELD_VALUE(sat_data[i][j])); else fprintf(stderr, "%c", 159-FIELD_VALUE(sat_data[i][j])); } fprintf(stderr, "\n"); I got this, which looks awesome: 400 26 1 0 16 Autodesk AutoCAD 17 ASM 6.0.2.7023 NT 24 Thu Oct 23 17:56:48 2008 1 9.9999999999999995e-007 1e-010 body $-1 $1 $-1 $-1 # lump $-1 $-1 $2 $0 # shell $-1 $-1 $-1 $3 $-1 $1 # face $-1 $-1 $4 $2 $-1 $5 forward double out # loop $-1 $-1 $6 $3 # plane-surface $-1 -5234.1866690312709 1968.7660943568626 0 0 0 1 1 0 0 forward_v I I I I # coedge $-1 $7 $8 $-1 $9 reversed $4 $-1 # coedge $-1 $10 $6 $-1 $11 reversed $4 $-1 # coedge $-1 $6 $10 $-1 $12 reversed $4 $-1 # edge $-1 $13 $14 $6 $15 forward # coedge $-1 $8 $7 $-1 $16 reversed $4 $-1 # edge $-1 $17 $13 $7 $18 forward # edge $-1 $14 $19 $8 $20 forward # vertex $-1 $9 $21 # vertex $-1 $9 $22 # straight-curve $-1 -6836.331483613787 3983.3399790566618 0 1 0 0 I I # edge $-1 $19 $17 $10 $23 forward # vertex $-1 $16 $24 # straight-curve $-1 -6836.331483613787 -45.807790342936642 0 0 1 0 I I # vertex $-1 $12 $25 # straight-curve $-1 -3632.0418544487547 3983.3399790566618 0 0 -1 0 I I # point $-1 -6836.331483613787 3983.3399790566618 0 # point $-1 -3632.0418544487547 3983.3399790566618 0 # straight-curve $-1 -3632.0418544487547 -45.807790342936642 0 -1 0 0 I I # point $-1 -6836.331483613787 -45.807790342936642 0 # point $-1 -3632.0418544487547 -45.807790342936642 0 # On Mon, Feb 22, 2010 at 8:28 PM, Rodrigo Rodrigues da Silva <pita...@members.fsf.org> wrote: > Felipe Sanches wrote: >> >> Somebody should try to write a libredwg example application that uses >> the SAT parser/importer from OpenCASCADE that Rodrigo mentioned to >> export DWG to some 3D open CAD format (perhaps COLLADA? or STEP?). > > The SAT module is not free. Although, I think they are still supplying demos > - assuming that the only legitimate use of proprietary software is to write > free software, I think it's ok if someone asks for one =D > > BTW, what about that decode function from Александр Ткаченко... sth like > > if (c==32) > ...nothing > else { c = 159 - c; } > > Maybe that's some kind of obfuscation. We should check if the value of the > SAT array is human readable ASCII text. If not, maybe he was actually making > a point. > > Александр Ткаченко, can you provide further information on this function you > suggested? > > > > >