LibreDWG - News: libredwg-0.11 released

libredwg-0.11 released

Item posted by Reini Urban <reini_urban> on Fri 07 Aug 2020 10:49:04 AM UTC.

New features:
  * new programs dwgfilter, dxfwrite.
    dwgfilter allows custom jq queries.
    dxfwrite allows version conversions, which dwgwrite does not yet support.
  * Can now read all 2004+ section types: added AppInfo, FileDepList,
    Template, ObjFreeSpace;
    and as blob: RevHistory, Security, AppInfoHistory.
    AcDsPrototype_1b datastore not fully yet, so we cannot reliably yet read
    new ACIS r2013+ SAB blobs stored there, but we extract them from the AcDs
    blob by brute-force.
  * Added new string types: T and T16, TU16, T32 (for those sections)
  * Convert ACIS BinaryFile v2 SAB to old encrypted ACIS SAT v1 data, needed
    to convert pre-r2013 ACIS v2 entities to DXF.
  * Added support for many object/entity types:

    Now stable: ACSH_BOOLEAN_CLASS ACSH_BOX_CLASS ACSH_CYLINDER_CLASS
    ACSH_FILLET_CLASS ACSH_SPHERE_CLASS ACSH_WEDGE_CLASS LIGHT MESH
    CELLSTYLEMAP DETAILVIEWSTYLE DYNAMICBLOCKPURGEPREVENTER INDEX
    GEODATA LAYERFILTER MULTILEADER PLOTSETTINGS SECTION_MANAGER
    SECTIONOBJECT SECTIONVIEWSTYLE VBA_PROJECT VISUALSTYLE.
    and some Dynblocks: BLOCKGRIPLOCATIONCOMPONENT BLOCKBASEPOINTPARAMETER
    BLOCKFLIPACTION BLOCKFLIPPARAMETER BLOCKFLIPGRIP BLOCKLINEARGRIP
    BLOCKMOVEACTION BLOCKROTATEACTION BLOCKSCALEACTION
    BLOCKVISIBILITYGRIP

    New unstable: ACSH_BREP_CLASS ACSH_CHAMFER_CLASS ACSH_CONE_CLASS
    ACSH_PYRAMID_CLASS ACSH_TORUS_CLASS ARC_DIMENSION ASSOCACTION
    ASSOCBLENDSURFACEACTIONBODY ASSOCEXTENDSURFACEACTIONBODY
    ASSOCEXTRUDEDSURFACEACTIONBODY ASSOCFILLETSURFACEACTIONBODY
    ASSOCGEOMDEPENDENCY ASSOCLOFTEDSURFACEACTIONBODY ASSOCNETWORK
    ASSOCNETWORKSURFACEACTIONBODY ASSOCOFFSETSURFACEACTIONBODY
    ASSOCPATCHSURFACEACTIONBODY ASSOCREVOLVEDSURFACEACTIONBODY
    ASSOCTRIMSURFACEACTIONBODY ASSOCVALUEDEPENDENCY BACKGROUND
    BLOCKLINEARPARAMETER BLOCKLOOKUPGRIP BLOCKROTATIONPARAMETER
    BLOCKXYPARAMETER BLOCKVISIBILITYPARAMETER HELIX
    LARGE_RADIAL_DIMENSION LIGHTLIST MATERIAL MENTALRAYRENDERSETTINGS
    RAPIDRTRENDERSETTINGS RENDERSETTINGS SECTION_SETTINGS
    SPATIAL_INDEX SUN TABLESTYLE.

    Fixed PROXY_OBJECT, PROXY_ENTITY.
    Demoted to Unstable: SPATIAL_INDEX
    Demoted to Debugging: PERSSUBENTMANAGER DIMASSOC

    Note: Unstable objects are not preserved via DXF conversion, just
    the external import is supported.

    Add most Constraint (ASSOC*) and DYNBLOCK objects (BLOCK*).
    Debugging classes added (needs --with-debug option):

    ACMECOMMANDHISTORY ACMESCOPE ACMESTATEMGR ACSH_EXTRUSION_CLASS
    ACSH_HISTORY_CLASS ACSH_LOFT_CLASS ACSH_REVOLVE_CLASS
    ACSH_SWEEP_CLASS ALDIMOBJECTCONTEXTDATA ALIGNMENTPARAMETERENTITY
    ANGDIMOBJECTCONTEXTDATA ANNOTSCALEOBJECTCONTEXTDATA
    ASSOC3POINTANGULARDIMACTIONBODY ASSOCACTIONPARAM
    ASSOCARRAYACTIONBODY ASSOCARRAYMODIFYACTIONBODY
    ASSOCARRAYMODIFYPARAMETERS ASSOCARRAYPATHPARAMETERS
    ASSOCARRAYPOLARPARAMETERS ASSOCARRAYRECTANGULARPARAMETERS
    ASSOCASMBODYACTIONPARAM ASSOCCOMPOUNDACTIONPARAM
    ASSOCDIMDEPENDENCYBODY ASSOCEDGEACTIONPARAM
    ASSOCEDGECHAMFERACTIONBODY ASSOCEDGEFILLETACTIONBODY
    ASSOCFACEACTIONPARAM ASSOCMLEADERACTIONBODY ASSOCOBJECTACTIONPARAM
    ASSOCORDINATEDIMACTIONBODY ASSOCOSNAPPOINTREFACTIONPARAM
    ASSOCPATHACTIONPARAM ASSOCPOINTREFACTIONPARAM
    ASSOCRESTOREENTITYSTATEACTIONBODY ASSOCROTATEDDIMACTIONBODY
    ASSOCSWEPTSURFACEACTIONBODY ASSOCVARIABLE ASSOCVERTEXACTIONPARAM
    ATEXT BASEPOINTPARAMETERENTITY BLKREFOBJECTCONTEXTDATA
    BLOCKALIGNEDCONSTRAINTPARAMETER BLOCKALIGNMENTGRIP
    BLOCKALIGNMENTPARAMETER BLOCKANGULARCONSTRAINTPARAMETER
    BLOCKARRAYACTION BLOCKDIAMETRICCONSTRAINTPARAMETER
    BLOCKHORIZONTALCONSTRAINTPARAMETER BLOCKLINEARCONSTRAINTPARAMETER
    BLOCKLOOKUPACTION BLOCKLOOKUPPARAMETER BLOCKPARAMDEPENDENCYBODY
    BLOCKPOINTPARAMETER BLOCKPOLARGRIP BLOCKPOLARPARAMETER
    BLOCKPOLARSTRETCHACTION BLOCKPROPERTIESTABLE
    BLOCKPROPERTIESTABLEGRIP BLOCKRADIALCONSTRAINTPARAMETER
    BLOCKREPRESENTATION BLOCKROTATIONGRIP BLOCKSTRETCHACTION
    BLOCKUSERPARAMETER BLOCKVERTICALCONSTRAINTPARAMETER BLOCKXYGRIP
    CONTEXTDATAMANAGER CSACDOCUMENTOPTIONS CURVEPATH DATALINK
    DATATABLE DMDIMOBJECTCONTEXTDATA DYNAMICBLOCKPROXYNODE
    EXTRUDEDSURFACE FCFOBJECTCONTEXTDATA FLIPPARAMETERENTITY
    GEOPOSITIONMARKER LAYOUTPRINTCONFIG LEADEROBJECTCONTEXTDATA
    LINEARPARAMETERENTITY LOFTEDSURFACE MLEADEROBJECTCONTEXTDATA
    MOTIONPATH MPOLYGON MTEXTATTRIBUTEOBJECTCONTEXTDATA
    MTEXTOBJECTCONTEXTDATA NAVISWORKSMODEL NURBSURFACE
    ORDDIMOBJECTCONTEXTDATA PERSUBENTMGR PLANESURFACE
    POINTPARAMETERENTITY POINTPATH RADIMLGOBJECTCONTEXTDATA
    RADIMOBJECTCONTEXTDATA RENDERENTRY RENDERENVIRONMENT RENDERGLOBAL
    REVOLVEDSURFACE ROTATIONPARAMETERENTITY RTEXT SUNSTUDY
    SWEPTSURFACE TABLE TABLECONTENT TEXTOBJECTCONTEXTDATA
    TVDEVICEPROPERTIES VISIBILITYGRIPENTITY VISIBILITYPARAMETERENTITY
    XYPARAMETERENTITY

  * Started support to write r2004+ format DWG's (which includes also r2010,
    r2013, r2018, but not r2007), but this does not work fully yet.
  * Added all remaining Dwg_Version types: R_1_3 for AC1.3, R_2_4 for AC1001, and
    AC1013 for R_13c3.
  * The header can now be compiled wth C++ compilers, needed for some bindings.
    Re-arranged nested structs, names, malloc casts, reserved keywords like this,
    template.
    Started with the gambas bindings, a Visual Basic clone for unix.
  * DXF and JSON importers now create PLACEHOLDER objects for unsupported
    objects.
  * 3DSOLID got now material properties and revisionguid fields.
  * Many parts of the API are now auto-generated/updated: dwg.i, dwg_api.c, dwg_api.h,
    unions and setup in dwg.h
  * Added geojsonhint or gjv linter support. Fixed all violations (esp. point arrays,
    and POLYLINE_2D). Add a Feature id (the handle)
  * Added support for GeoJSON RFC7946, write closed polygons, re-order by the
    right-hand rule..
  * new API functions:
    dwg_ctrl_table, dwg_handle_name, dwg_find_dicthandle_objname, dwg_variable_dict,
    dwg_next_entity, get_next_owned_block_entity, dwg_section_name,
    dwg_version_type, dwg_version_as, dwg_errstrings,  dwg_rgb_palette,
    dwg_find_color_index.
  * new dynapi functions: dwg_dynapi_subclass_value, dwg_dynapi_subclass_field,
    dwg_dynapi_fields_size.
    (BTW. the dynapi proved to be a godsend for the json importer)

API breaking changes:
  * Renamed dwg_section_type to dwg_section_wtype, added a new dwg_section_type
    for ASCII names.
  * Removed all extra null_handle fields, and add the missing handle fields.
  * Renamed all dwg_add_OBJECT functions to dwg_setup_OBJECT. They didn't add them, just setup
    the internal structures.
  * Renamed VPORT_ENTITY_HEADER to VX_TABLE_RECORD and VPORT_ENTITY_CONTROL to VX_CONTROL.
    Also section enum SECTION_VPORT_ENTITY to SECTION_VX and dwg->vport_entity_control likewise.
  * Hundreds of field renames due to harmonization efforts with the more generic
    JSON importer. Note that some deprecated dwg_api accessor functions were also
    renamed accordingly, but not all.

    For the stable objects:
    TEXT,ATTRIB,ATTDEF,SHAPE,STYLE: oblique_ang => oblique_angle,
    TEXT,ATTRIB,ATTDEF,SHAPE,MTEXT,UNDERLAY,TABLE,...: insertion_pt => ins_pt,
    DIMENSION_* _13_pt => xline1_pt, _14_pt => xline2_pt,
      ext_line_rotation => oblique_angle
    DIMENSION_ANG2LN _16_pt => xline1start_pt, _14_pt => xline2start_pt,
      _13_pt => xline1end_pt, first_arc_pt => xline2end_pt
    VIEW,VIEWPORT: view_direction => VIEWDIR (as it overrides this header),
      view_twist => twist_angle,
      view_height => VIEWSIZE,
      snap_angle => SNAPANG,
      view_center => VIEWCTR,
      snap_base => SNAPBASE,
      snap_spacing => SNAPUNIT,
      grid_spacing => GRIDUNIT,
      ucs_per_viewport => UCSVP,
      ucs_origin => ucsorg,
      ucs_x_axis => ucsxdir,
      ucs_y_axis => ucsydir,
      ucs_ortho_view_type => UCSORTHOVIEW
    OLEFRAME.data_length => data_size,
    LEADER.offset_to_block_ins_pt => inspt_offset
    TOLERANCE.text_string => text_value
    STYLE.vertical => is_vertical, shape_file => is_shape, fixed_height => text_size,
      extref => xref
    DICTIONARYVAR.intval => schema, str => strvalue

    COMMON_TABLE_FIELDS: xrefref => is_xref_ref, xrefindex_plus1 => is_xref_resolved,
      xrefdep => is_xref_dep. new common xref HANDLE field (was null_handle in many objects)

    LAYER got a new visualstyle handle.
    LTYPE.dashes got a new style handle and text field.
    LTYPE has no styles H* anymore, moved to dashes.
    LTYPE.text_area_is_present => has_strings_area, extref_handle => xref.
    VIEW, VIEWPORT:
      height => VIEWSIZE, width => view_width, center => VIEWCTR, target => view_target,
      direction => VIEWDIR, front_clip => front_clip_z, back_clip => back_clip_z,
      pspace_flag => is_pspace,
      origin => ucsorg, x_direction => ucsxdir, y_direction => ucsydir,
      elevation => ucs_elevation, orthographic_view_type => UCSORTHOVIEW,
      camera_plottable => is_camera_plottable

    UCS got a new orthopts array, and the renames as above.
    DIMSTYLE got a new flag0. flag is computed from that.
    VPORT_ENTITY_HEADER flag1 => is_on, vport_entity => viewport, xref_handle => xref,
      new prev_entity handle.
    MLINESTYLE index/ltype union changed to seperate lt_index, lt_ltype fields.
      They were overwriting each other on version conversions.
    MLINESTYLE.desc => description, data_length => data_size.
    HATCH booleans got a is_ prefix.
    MTEXT.annotative => is_annotative.
    MTEXT.drawing_dir => flow_dir.
    XRECORD.num_databytes => xdata_size
    MLEADERSTYLE text_frame => is_text_frame, is_new_format removed.
      changed => is_changed.
    DICTIONARYYWDFLT got a new format_flags and data_handle
    SCALE.has_unit_scale => is_unit_scale
    SORTENTSTABLE.dictionary => block_owner

    Type changes in stable objects:
    SPLINE.fit_pts are now ordinary BITCODE_3DPOINT*
    SPLINE.color is BL, scale is now 3BD
  * Changed truecolor attributes in GeoJSON with a # prefix.

Major bugfixes:
  * Fixed converting ASCII from and to Unicode strings, when converting across
    versions. Embed Unicode as \U+XXXX into ASCII, and decode it back to Unicode.
    Honor dat,dwg->from_version and use the new FIELD_T as seperate type. (#185)
  * Invalid numbers (read failures) are converted to 0.0 in the released version.
  * Fixed wrong CMC color reads and writes, check the method, lookup the index,
    support a CMTC truecolor-only type.
  * Fixed EED writes, by writing to seperate streams and merging them at the end,
    with proper size calculation.
  * All remaining assertions are now protected. (GH #187)

Minor bugfixes:
  * Fixed uncompressed sections overflows, some fuzzed (GH #183), some
    with the new sections.
  * Normalize extrusion vectors.
  * Fix bit_write_BT, the thickness vector pre-R2000.
  * Added many overflow checks, due to extensive fuzzing campains.
  * Fixed wrong julian date conversions with TIMEBLL types.
  * Fxed keyword conflicts with the bindings: No next, from, self fieldnames.
  * Many more, see the ChangeLog.

Other newsworthy changes:
  * Harmonized 2004 section search with the better 2007 variant. Added a new
    section and info fixedtype field.
  * Added unit-tests for all supported objects.
  * Added src/classes.c defining the class stability (stable, unstable, debugging, unhandled).
  * Need now -lm, the system math library, in all cases.
  * Got a complete collection of old DWGs to cross-check against. Many new object types
    could be stabilized because of this. Many thanks to Michal Josef Špaček.
  * CMC color got 2 new fields: raw (EMC only), method (the first rgb byte).
  * Many DXF re-ordering fixes.

Notes: The new constraint and dynblock objects just miss a major refactor into seperate
impl subclasses, and subent and curve support.


Here are the compressed sources:
  http://ftp.gnu.org/gnu/libredwg/libredwg-0.11.tar.gz  (16.0MB)
  http://ftp.gnu.org/gnu/libredwg/libredwg-0.11.tar.xz   (7.9MB)

Here are the GPG detached signatures[*]:
  http://ftp.gnu.org/gnu/libredwg/libredwg-0.11.tar.gz.sig
  http://ftp.gnu.org/gnu/libredwg/libredwg-0.11.tar.xz.sig

Use a mirror for higher download bandwidth:
  https://www.gnu.org/order/ftp.html

Here are more binaries:
  https://github.com/LibreDWG/libredwg/releases/tag/0.11

Here are the SHA256 checksums:
6b48304c50320b1ee7fbfea63c3b1437bbc3d4cd1b0ecb7fecd5f00ed4f4bdc8  libredwg-0.11.tar.gz
c25bbab29e7814663a203c38df8cbcce850d0b003a7132cf3f849429468ca7ed  libredwg-0.11.tar.xz

[*] Use a .sig file to verify that the corresponding file (without the
.sig suffix) is intact.  First, be sure to download both the .sig file
and the corresponding tarball.  Then, run a command like this:

  gpg --verify libredwg-0.11.tar.gz.sig

If that command fails because you don't have the required public key, then run this command to import it:

  gpg --keyserver keys.gnupg.net --recv-keys B4F63339E65D6414

and rerun the 'gpg --verify' command.