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Dylan M. Taylor
b85549a5b4
* craft-dxf: model, the drawing above the tags (header, tables, blocks, layouts) Document::read indexes a tag list into header variables, table records, blocks with their entities, the ENTITIES records (a POLYLINE with its vertices, an INSERT with its attributes) and the objects, each a slice of the tag list. The typed table records, LAYOUT and DICTIONARY are made on request. Also the colour index palette, colour, lineweight and transparency values, extended data lookup and the object coordinate system. Merged from CADCraft's cadcraft-io dxf_read (5a6aa9b6) and VectorCraft's vectorcraft-cad import (566f7208). Neither app's document types appear. * craft-dxf: model entities (geometry, text, MTEXT columns, hatches, dimensions) Entity::read types an entity record: the properties every entity has, and LINE, POINT, CIRCLE, ARC, ELLIPSE, LWPOLYLINE, POLYLINE with its vertices (2D, 3D, mesh, polyface), SPLINE, RAY, XLINE, TEXT, MTEXT with columns, ATTDEF, INSERT with its attributes (multiline ones included), DIMENSION, LEADER, SOLID, TRACE, 3DFACE, HATCH (polyline and edge loops, pattern lines, seeds, gradient), VIEWPORT, IMAGE, WIPEOUT and TOLERANCE. Other types stay readable from the record's tags. model::text has the caret encoding of strings, both ways. Merged from CADCraft's cadcraft-io dxf_read (5a6aa9b6) and VectorCraft's vectorcraft-cad import (566f7208). * craft-dxf: a hatch spline edge without fit data leaves the loop's source count Before R2010 a spline edge has no 97 of its own, so the 97 after it counts the loop's source entities. It was read as the edge's fit point count and the sources were lost. * craft-dxf: model::write, a drawing as tags (R12 to 2018) Drawing::tags writes the header, classes, the nine symbol tables, blocks, entities and (R2000 and later) the dictionaries, plot style placeholder and layouts around the layers, linetypes, styles, dimension styles, blocks and entities it is given, in the model's own types. entity_tags writes one entity for a caller with its own file. Handles given with the content are kept; the rest are numbered after them. The file skeleton is VectorCraft's vectorcraft-cad writer.rs (566f7208); the MTEXT column groups are CADCraft's dxf_read/mtext_dxf.rs column_tags (5a6aa9b6). * craft-dxf: model objects (page setup, groups, image definitions, draw order, clip filters, DIMASSOC, scales, multiline styles), HELIX and dimension overrides model::objects types the OBJECTS records both readers and CADCraft's passes use: the AcDbPlotSettings groups of a LAYOUT, GROUP, IMAGEDEF, SORTENTSTABLE, SPATIAL_FILTER, DIMASSOC, SCALE and MLINESTYLE, and dim_overrides reads the DSTYLE list of a dimension's ACAD extended data. Document gains objects_of and dictionary_names (the name a dictionary lists an object under). HELIX is an entity kind, read and written. From CADCraft's cadcraft-io dxf_read/objects.rs, document.rs, dimassoc.rs, entities.rs, dxf_mline.rs, dxf_clip.rs and dxf_image.rs (5a6aa9b6). * README: keep main's crate list after the merge