doc/Todo_en.txt                                                   2023-06-06
============================================================================


Open issues:



============================================================================
Import step testfile step/Models/text-Bournes.stp
============================================================================
2023-04-20  export of Open CASCADE STEP

TODO:
B_SPLINE_CURVE_WITH_KNOTS - .PIECEWISE_BEZIER_KNOTS.



============================================================================
Import igs testfile igs/text-Bournes.igs
============================================================================
2023-04-20 export of FreeCAD

TODO:
- implementation of types 502,504,508,510,514;



============================================================================
Import obj testfile obj/text-Bournes.obj
============================================================================
2023-04-20  export of Open CASCADE

TODO:
- unknown format for f - eg "f 31//31 20//20 21//21"
- known format is        eg "f 31 32 33"




============================================================================
- add import stl-binary
============================================================================
- model stl/prop-gen.stl

TODO:
- check if files starts with "solid"
- if not: read binary. See doc stl_bin_doc.png



============================================================================
- Boolean operations with surfaces 
============================================================================
  - consistency checks of surface-boundaries (body-net)       -
  - boolean operations with surfaces                          -
  - boolean operations with planar surfaces                   90 %
  - trimmed polygonal_representation_of_curve                 OK



============================================================================
- Add offset-surfaces                                         -
============================================================================



============================================================================
- Add rounding surfaces
============================================================================
  - circular surface along spine                              -
  - intersection surfaces                                     OK



============================================================================
- interactive editor - modify object:
============================================================================
    - display objects not affected dimmed,
    - update child-objects dynamic.
    - "edit object" n MAN and CAD shall display all objects following dimmed.
Example:

P20=P(20 0 0)
C20=P20 50
A20=C20
L20=P20 P(100 0 0)

Edit obj C20 (eg change radius 50)
- P20 - displayed normal;
- C20 - hilited; active obj to be modified,
- A20 - dimmed; following the obj C20 and child of C20 (depending bj)
- L20 - dimmed; following, not child of C20.

____________________________________________________________________________

- Project and Mirror currently only for individual objects,
  not for CCV (currently Translate only).

- update interactive editor to modify B-splines. 

- Transformation of 3D Text: currently is always set in the XY plane.

- NC machining is graphically not yet active in the transformed reference system.

- NC-function are not yet completely implemented for alternative construction-planes

- Function for interactive positioning of sub-models to a contact position.

- Drawing 2D from 3D 

- With hatching, no islands are possible yet

- The programming interfaces are only partially documented.

- Step-Export only partially implemented

- Perspective view (only parallel view)




============================================================================
Send bug reports, suggestions for improvements to support@gcad3d.org

EOF