Editing User:Xuwei/DevLog2019


Warning: You are not logged in. Your IP address will be publicly visible if you make any edits. If you log in or create an account, your edits will be attributed to your username, along with other benefits.

The edit can be undone. Please check the comparison below to verify that this is what you want to do, and then save the changes below to finish undoing the edit.
Latest revision Your text
Line 213: Line 213:
===July 14th===
===July 14th===
* Fix the block list and curr_block is not storing value properly
* Fix the block list and curr_block is not storing value properly
* There is an infinite loop caused by the file offset in the process_enitites_unknown
* There is an infinity loop caused by the file offset in the process_enitites_unknown
** It jumps to the previous line but does not jump back
** It jumps to the preivous line but does not jump back
* Continue on fixing insert
* Continue on fixing insert
Line 261: Line 261:
*Fix scale, xyorigin, layername problem.
*Fix scale, xyorigin, layername problem.
*Test result [https://github.com/openscad/openscad/pull/3006]
*Test result [https://github.com/openscad/openscad/pull/3006]
===July 25th===
* Starting working on spline entity.
* Reading spline related code on QCAD.
* Learning dxf spline entity spec.
===July 26th===
* QCAD is using an external library opennurbs to deal with the spline.
* Reading spline related code on BRL-CAD.
** BRL-CAD code can be implemented on openscad.
===July 29th===
* Replicate and integrate brlcad spline code to openscad.
===July 30th===
* Continue integrating blrcad spline code to openscad.
===July 31st===
* Testing brlcad code with openscad, comparing with brlcad and qcad.
** Creating test cases using AutoCAD.
** Both brlcad and qcad seems to not supporting the spline created by autocad properly due to dxf version problem.
** brlcad encounter segmentation fault with one of the spline test cases.
===August 1st===
* Switch to reading LibreCAD spline related code.
** LibreCAD 2.x version is using their own code.
* Also reading openscad bezier curve related code.
===August 2nd===
* LibreCAD can handle the spline created by autocad unlike brlcad and qcad.
* OpenSCAD code can handle degree 2, 3 normal spline(Beizer curve) properly.
** Starting adding openscad code to import_dxf.
===August 3rd===
* Modified openscad code and integrated it to import_dxf.
===August 4th===
* Testing the spline import of openscad
** Able to import 3 control points for degree 2 spline and 4 for degree 3 spline.
** Fail to generate continuous bezier curve.
===August 5th===
* Trying to figure an algorithm or a way to generate continuous bezier curve like this [https://www.algosome.com/articles/continuous-bezier-curve-line.html article].
===August 6th===
* OpenSCAD is now able to import degree 1-3 spline with certain numbers of control points.
** spline knots, weights, fit points are ignored.
===August 7th - 14th===
* Family trip.
* Originally from 7th-12th, due to the riots in Hong Kong airport and the typhoon in Osaka, flight got cancelled and delayed. ** Due to the typhoon, updated flight time is 16th.
===August 15th===
* Starting working on polyline entity.
===August 16th===
* Rearrange code and fix error in storing polyline vertex in the importer.
* On the flight home
===August 17th===
* Integrate 2D polyline entity to openscad ignoring 3D polyline features and curve-fit.
===August 18th===
* Improve polyline with the spline-fit flag, can generate by both spline vertex and control points.
* Test polyline.
* Add test cases to the test suite.

Please note that all contributions to BRL-CAD may be edited, altered, or removed by other contributors. If you do not want your writing to be edited mercilessly, then do not submit it here.
You are also promising us that you wrote this yourself, or copied it from a public domain or similar free resource (see BRL-CAD:Copyrights for details). Do not submit copyrighted work without permission!

To edit this page, please answer the question that appears below (more info):

Cancel Editing help (opens in new window)