Difference between revisions of "Google Summer of Code/Project Ideas"

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If you want to work on '''computer-aided design (CAD), geometry, or graphics''', you've come to the right place!  Help us improve open source CAD.
 
If you want to work on '''computer-aided design (CAD), geometry, or graphics''', you've come to the right place!  Help us improve open source CAD.
  
Well prepared proposals have an ''outstanding'' chance here.  We consider proposals for all skill levels ranging from simple to crazy hard and everything in between.  [https://lists.sourceforge.net/lists/listinfo/brlcad-devel Introduce yourself], and we'll help you plan one right for you.
+
Well prepared proposals from capable students have an ''outstanding'' chance of getting selected.  We consider proposals for all skill levels ranging from simple to crazy hard and everything in between.  [https://lists.sourceforge.net/lists/listinfo/brlcad-devel Introduce yourself], and we'll help you plan one right for you.
  
We plan on selecting 6-12 students to work on web projects, C/C++ projects, and more.  This year, BRL-CAD is coordinating with three other communities that will get 1-2 students each to help bridge our work and encourage collaborationProjects that help exchange data or share code are desired!
+
Remember that project descriptions are just ''initial ideas''.  You must expand with [[Summer_of_Code/Application_Guidelines|considerably more detail]]Change the goals to fit your experience and interestsSee our '''[[Summer_of_Code/Checklist|checklist]]''' to get started.
  
{|align="center" width="62%"
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This year, BRL-CAD is coordinating with five other communities that will get 1-2 students each to help bridge our work and encourage collaboration.  Projects that help exchange data or share code are desired!
|align="center" |[http://brlcad.org/w/index.php?title=Google_Summer_of_Code/Project_Ideas#BRL-CAD_Projects http://brlcad.org/images/logo/BRL-CAD_gear_logo_w_name_256.png]
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|colspan=2 align="center" |Under development for 30+ years, it's big, it's complicated, it's powerful.  BRL-CAD will consider just about any project that relates to computer graphics or existing infrastructure.
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{|-
|}
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|align="center" width="15%"|[http://brlcad.org/w/index.php?title=Google_Summer_of_Code/Project_Ideas#BRL-CAD_Projects http://brlcad.org/images/logo/cutout_sticker_256.png]
{|align="center" width="95%"
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  |align="center" width="15%"|[http://brlcad.org/w/index.php?title=Google_Summer_of_Code/Project_Ideas#OpenSCAD_Projects http://www.openscad.org/assets/img/logo.png]
  |align="center" width="20%"|[http://brlcad.org/w/index.php?title=Google_Summer_of_Code/Project_Ideas#OpenSCAD_Projects http://www.openscad.org/assets/img/logo.png]
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  |align="center" width="15%"|[http://brlcad.org/w/index.php?title=Google_Summer_of_Code/Project_Ideas#LibreCAD_Projects http://librecad.org/files/live/sites/lc/files/WebImages/LogoLibrecad_logo.png]
  |align="center" width="20%"|[http://brlcad.org/w/index.php?title=Google_Summer_of_Code/Project_Ideas#LibreCAD_Projects http://librecad.org/files/live/sites/lc/files/WebImages/LogoLibrecad_logo.png]
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|align="center" width="20%"|[http://brlcad.org/w/index.php?title=Google_Summer_of_Code/Project_Ideas#STEPcode_Projects http://stepcode.org/STEPcode_logo_sm.png]
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|align="center" width="20%"|[http://brlcad.org/w/index.php?title=Google_Summer_of_Code/Project_Ideas#LinuxCNC_Projects http://wiki.linuxcnc.org/chips.gif]
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|align="center" width="20%"|[http://brlcad.org/w/index.php?title=Google_Summer_of_Code/Project_Ideas#FreeCAD_Projects http://www.freecadweb.org/images/logo.png]
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  |-
 
  |-
 +
|align="center"|'''BRL-CAD''': 3D solid modeling, geometry processing, and robust high-performance ray tracing.  Help us make a better CAD system. 
 
  |align="center"|'''OpenSCAD''': rich syntax, programmable geometry.  Lots of possibilities to make it interoperate with BRL-CAD and LibreCAD.
 
  |align="center"|'''OpenSCAD''': rich syntax, programmable geometry.  Lots of possibilities to make it interoperate with BRL-CAD and LibreCAD.
 
  |align="center"|'''LibreCAD''': specializes in 2D CAD modeling, drafting, drawings.  Help build a bridge to BRL-CAD or add STEP support.
 
  |align="center"|'''LibreCAD''': specializes in 2D CAD modeling, drafting, drawings.  Help build a bridge to BRL-CAD or add STEP support.
 +
|-
 +
|align="center" width="15%"|[http://brlcad.org/w/index.php?title=Google_Summer_of_Code/Project_Ideas#STEPcode_Projects http://stepcode.org/STEPcode_logo_gears_light.png]
 +
|align="center" width="15%"|[http://brlcad.org/w/index.php?title=Google_Summer_of_Code/Project_Ideas#Slic3r_Projects https://raw.githubusercontent.com/alexrj/Slic3r/master/var/Slic3r_128px.png]
 +
|align="center" width="15%"|[http://brlcad.org/w/index.php?title=Google_Summer_of_Code/Project_Ideas#FreeCAD_Projects http://www.freecadweb.org/images/logo.png]
 +
|-
 
  |align="center"|'''STEPcode''': file format on steroids, STEP is a complex standard for geometry used by nearly every pro CAD system.
 
  |align="center"|'''STEPcode''': file format on steroids, STEP is a complex standard for geometry used by nearly every pro CAD system.
  |align="center"|'''LinuxCNC''': software for computer control of machine tools such as milling machines and lathes, 3d printers, robot arms, and more.
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  |align="center"|'''Slic3r''': toolpath/G-code generator for 3D printers.
  |align="center"|'''FreeCAD''': Parametric 3D modelling with strong Python interface and general engineering functionality like FEM and CAM  
+
  |align="center"|'''FreeCAD''': parametric 3D modelling with strong Python interface and general engineering functionality like FEM and CAM  
 
  |}
 
  |}
 
'''Unless there isn't a quality proposal, we intend to select at least one student for each of BRL-CAD's main categories as well as at least one student each for OpenSCAD, LibreCAD, and STEPcode.'''
 
 
Remember that project descriptions are just ''initial ideas''.  You must expand with [[Summer_of_Code/Application_Guidelines|considerably more detail]].  Change the goals to fit your experience and interests.  See our '''[[Summer_of_Code/Checklist|checklist]]''' to get started.
 
  
 
'''Project titles link to a page with more details.'''
 
'''Project titles link to a page with more details.'''
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|align=center|C/C++/Tcl/Qt
 
|align=center|C/C++/Tcl/Qt
 
|align=center|HARD
 
|align=center|HARD
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Yapp]]
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Rossberg, Yapp]]
 
|-
 
|-
 
|width=62%|'''[[Annotations]]:'''  Implement support for 2D annotations, labels that can be added to geometry.
 
|width=62%|'''[[Annotations]]:'''  Implement support for 2D annotations, labels that can be added to geometry.
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|width=62%|'''[[Geometry Conversion Library]]:'''  Probably our biggest open source asset is our extensive collection of importers and exporters.  Turn them all into a universal conversion library.  
 
|width=62%|'''[[Geometry Conversion Library]]:'''  Probably our biggest open source asset is our extensive collection of importers and exporters.  Turn them all into a universal conversion library.  
 
|align=center|C/C++
 
|align=center|C/C++
|align=center|EASY
 
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Greenwald, Morrison, Rossberg]]
 
|-
 
|width=62%|'''[[Voxelize]] command:'''  Convert geometry into voxel data sets by shooting a grid of rays.  The finite element analysis and volumetric rendering folks will love you.
 
|align=center|C
 
 
|align=center|EASY
 
|align=center|EASY
 
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Greenwald, Morrison, Rossberg]]
 
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Greenwald, Morrison, Rossberg]]
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|align=center|C/C++
 
|align=center|C/C++
 
|align=center|MEDIUM
 
|align=center|MEDIUM
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Morrison, Rossberg]]
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Morrison]]
 
|-
 
|-
 
|align=left width=62%|'''[[Coherent Raytracing]]:''' Our current raytrace pipeline dispatches and processes one ray at a time.  Send bundles and convert the pipeline into phases.  
 
|align=left width=62%|'''[[Coherent Raytracing]]:''' Our current raytrace pipeline dispatches and processes one ray at a time.  Send bundles and convert the pipeline into phases.  
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|align=center|C
 
|align=center|C
 
|align=center|EASY
 
|align=center|EASY
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Greenwald, Morrison]]
 +
|-
 +
|width=62%|'''[[Faster Overlap Detection]]:'''  BRL-CAD has a 'gqa' tool that detects overlaps.  Implement a replacement using a better approach.
 +
|align=center|C
 +
|align=center|MEDIUM
 
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Greenwald, Morrison]]
 
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Greenwald, Morrison]]
 
|}
 
|}
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|align=center|EASY
 
|align=center|EASY
 
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Greenwald, Yapp, Morrison]]
 
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Greenwald, Yapp, Morrison]]
|-
 
|width=62%|'''[[Rework of libbu/libbn to not require Tcl]]:'''  Tcl's '''''C API''''' is used throughout BRL-CAD providing great abstractions, but we want our basic utility and numeric libraries (LIBBU & LIBBN) to stand alone.
 
|align=center|C
 
|align=center|EASY
 
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Morrison, Yapp, Greenwald]]
 
 
|-
 
|-
 
|width=62%|'''[[Consolidate image processing]]:'''  We have 100+ image processing tools that independently read and write file data.  Needs much reuse love.
 
|width=62%|'''[[Consolidate image processing]]:'''  We have 100+ image processing tools that independently read and write file data.  Needs much reuse love.
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!align=center|Difficulty
 
!align=center|Difficulty
 
!align=center|Contacts
 
!align=center|Contacts
|-
 
|align=left width=62%|'''[https://github.com/openscad/openscad/wiki/Project%3A-Form-based-script-parameterization Form-based Customization]:''' Declaration and auto-generation of GUI for driving parametrization.
 
|align=center|C++
 
|align=center|EASY-MEDIUM
 
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Torsten]]
 
 
|-
 
|-
 
|align=left width=62%|'''[https://github.com/openscad/openscad/wiki/Project%3A-Improve-DXF-import-and-export Improve DXF Import and Export]:''' Look into using an external library for DXF import (and export?).
 
|align=left width=62%|'''[https://github.com/openscad/openscad/wiki/Project%3A-Improve-DXF-import-and-export Improve DXF Import and Export]:''' Look into using an external library for DXF import (and export?).
 
|align=center|C++
 
|align=center|C++
 
|align=center|MEDIUM
 
|align=center|MEDIUM
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Marius/Amir]]
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Marius/Torsten]]
 
|-
 
|-
 
|align=left width=62%|'''[https://github.com/openscad/openscad/wiki/Ideas-for-Development-Tasks#openscad-standard-library OpenSCAD Standard Library]:''' Create a standard user-space OpenSCAD library.
 
|align=left width=62%|'''[https://github.com/openscad/openscad/wiki/Ideas-for-Development-Tasks#openscad-standard-library OpenSCAD Standard Library]:''' Create a standard user-space OpenSCAD library.
 
|align=center|OpenSCAD
 
|align=center|OpenSCAD
 
|align=center|MEDIUM
 
|align=center|MEDIUM
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Marius]]
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Marius/Torsten]]
 
|-
 
|-
 
|align=left width=62%|'''[https://github.com/openscad/openscad/wiki/Project%3A-Improve-OpenGL-rendering OpenGL framework]:''' Rewrite the OpenGL rendering code to use a rendering framework. Focus on compatibility with OpenGL ES2 and rendering performance.
 
|align=left width=62%|'''[https://github.com/openscad/openscad/wiki/Project%3A-Improve-OpenGL-rendering OpenGL framework]:''' Rewrite the OpenGL rendering code to use a rendering framework. Focus on compatibility with OpenGL ES2 and rendering performance.
 
|align=center|C++ OpenGL
 
|align=center|C++ OpenGL
 
|align=center|MEDIUM
 
|align=center|MEDIUM
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Marius]]
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Marius/Torsten]]
 
|-
 
|-
 
|align=left width=62%|'''[https://github.com/openscad/openscad/wiki/Ideas-for-Development-Tasks#persistant-caching Persistent Caching]:''' Implement a disk-based version of the internal memory caches
 
|align=left width=62%|'''[https://github.com/openscad/openscad/wiki/Ideas-for-Development-Tasks#persistant-caching Persistent Caching]:''' Implement a disk-based version of the internal memory caches
 
|align=center|C++
 
|align=center|C++
 
|align=center|MEDIUM
 
|align=center|MEDIUM
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Marius]]
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Marius/Torsten]]
 
|-
 
|-
 
|align=left width=62%|'''[https://github.com/openscad/openscad/wiki/Project%3A-Multi-threaded-geometry-rendering Multi-threaded Geometry Evaluation]:''' Implement multi-threaded evaluation of geometry.
 
|align=left width=62%|'''[https://github.com/openscad/openscad/wiki/Project%3A-Multi-threaded-geometry-rendering Multi-threaded Geometry Evaluation]:''' Implement multi-threaded evaluation of geometry.
 
|align=center|C++
 
|align=center|C++
 
|align=center|MEDIUM
 
|align=center|MEDIUM
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Marius]]
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Marius/Torsten]]
 
|-
 
|-
 
|align=left width=62%|'''[https://github.com/openscad/openscad/wiki/Project%3A-Survey-of-CSG-algorithms Survey of CSG algorithms]:''' Review existing research, evaluate and prototype algorithms.
 
|align=left width=62%|'''[https://github.com/openscad/openscad/wiki/Project%3A-Survey-of-CSG-algorithms Survey of CSG algorithms]:''' Review existing research, evaluate and prototype algorithms.
 
|align=center|C++
 
|align=center|C++
 
|align=center|MEDIUM-HARD
 
|align=center|MEDIUM-HARD
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Marius]]
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Marius/Torsten]]
 
|-
 
|-
 
|align=left width=62%|'''[https://github.com/openscad/openscad/wiki/Ideas-for-Development-Tasks#issue-handling Issue Handling]:''' Day-to day issue and community management, fix incoming and existin issues. Good place to get started.
 
|align=left width=62%|'''[https://github.com/openscad/openscad/wiki/Ideas-for-Development-Tasks#issue-handling Issue Handling]:''' Day-to day issue and community management, fix incoming and existin issues. Good place to get started.
 
|align=center|C++
 
|align=center|C++
 
|align=center|EASY
 
|align=center|EASY
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Marius]]
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Marius/Torsten]]
 
|-
 
|-
 
|align=left width=62%|'''[https://github.com/openscad/openscad/wiki/Ideas-for-Development-Tasks#test-framework-improvements Test Framework Improvements]:''' Improve tests and test framework. Good place to get started.
 
|align=left width=62%|'''[https://github.com/openscad/openscad/wiki/Ideas-for-Development-Tasks#test-framework-improvements Test Framework Improvements]:''' Improve tests and test framework. Good place to get started.
 
|align=center|C++
 
|align=center|C++
 
|align=center|EASY-MEDIUM
 
|align=center|EASY-MEDIUM
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Marius]]
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Marius/Torsten]]
 +
|-
 +
|align=left width=62%|'''[https://github.com/openscad/openscad/wiki/Ideas-for-Development-Tasks#svg-import SVG Import]:''' Improve/finalize SVG import.
 +
|align=center|C++, SVG
 +
|align=center|MEDIUM
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Marius/Torsten]]
 
|-
 
|-
 
|align=left width=62%|'''[https://github.com/openscad/openscad/wiki/Ideas-for-Development-Tasks#larger-tasks-for-particularly-experienced-people Larger tasks for particularly experienced people]:''' Various harder tasks which are not fully specified and requires significant effort to design and implement.
 
|align=left width=62%|'''[https://github.com/openscad/openscad/wiki/Ideas-for-Development-Tasks#larger-tasks-for-particularly-experienced-people Larger tasks for particularly experienced people]:''' Various harder tasks which are not fully specified and requires significant effort to design and implement.
 
|align=center|C++
 
|align=center|C++
 
|align=center|HARD
 
|align=center|HARD
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Marius]]
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Marius/Torsten]]
 
|}
 
|}
  
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|align=center|C++,Math
 
|align=center|C++,Math
 
|align=center|MEDIUM TO HIGH
 
|align=center|MEDIUM TO HIGH
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|dli]], [[Google_Summer_of_Code/Project_Ideas#Mentors|ries]]
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|LordOfBikes]], [[Google_Summer_of_Code/Project_Ideas#Mentors|ries]]
 
|-
 
|-
  
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|align=center|C++,Math
 
|align=center|C++,Math
 
|align=center|MEDIUM TO HIGH
 
|align=center|MEDIUM TO HIGH
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|dli]], [[Google_Summer_of_Code/Project_Ideas#Mentors|ries]]
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|LordOfBikes]], [[Google_Summer_of_Code/Project_Ideas#Mentors|ries]]
 
|-
 
|-
  
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|align=center|C++
 
|align=center|C++
 
|align=center|MEDIUM
 
|align=center|MEDIUM
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|dli]], [[Google_Summer_of_Code/Project_Ideas#Mentors|ries]]
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|LordOfBikes]], [[Google_Summer_of_Code/Project_Ideas#Mentors|ries]]
 
|-
 
|-
  
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|align=center|C++
 
|align=center|C++
 
|align=center|MEDIUM
 
|align=center|MEDIUM
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|dli]], [[Google_Summer_of_Code/Project_Ideas#Mentors|ries]]
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|LordOfBikes]], [[Google_Summer_of_Code/Project_Ideas#Mentors|ries]]
 
|-
 
|-
  
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|align=center|C++
 
|align=center|C++
 
|align=center|MEDIUM
 
|align=center|MEDIUM
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|dli]], [[Google_Summer_of_Code/Project_Ideas#Mentors|ries]]
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|LordOfBikes]], [[Google_Summer_of_Code/Project_Ideas#Mentors|ries]]
 
|-
 
|-
  
|- bgcolor=#fafafa
+
|- bgcolor=#ffffff
 
|width=62%|'''[[SmartSnap]]:''' Adding and improve snap features for drawing
 
|width=62%|'''[[SmartSnap]]:''' Adding and improve snap features for drawing
 
|align=center|C++
 
|align=center|C++
 
|align=center|MEDIUM
 
|align=center|MEDIUM
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|dli]], [[Google_Summer_of_Code/Project_Ideas#Mentors|ries]]
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|LordOfBikes]], [[Google_Summer_of_Code/Project_Ideas#Mentors|ries]]
|-
+
 
+
|- bgcolor=#ffffff
+
|width=62%|'''[[LibreCAD on mobile]]:''' Qt5 support for mobile (Android and iOS, see [http://doc.qt.digia.com/qtcreator-2.1/creator-mobile-example.html Qt mobile]).
+
|align=center|Qt Android iOS
+
|align=center|MEDIUM
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|dli]]
+
 
|-
 
|-
  
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|align=center|C++
 
|align=center|C++
 
|align=center|MEDIUM
 
|align=center|MEDIUM
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|dli]]
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|LordOfBikes]]
 
|-
 
|-
 
|}
 
|}
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|}
 
|}
  
= LinuxCNC Projects =
+
= Slic3r Projects =
  
[http://linuxcnc.org LinuxCNC] is software for computer control of machine tools such as milling machines and lathes, 3d printers, robot arms, and more.
+
[http://slic3r.org Slic3r] is CAM desktop application for toolpath/G-code generation for 3D printers.
  
 
{| bgcolor=#fff width=100%
 
{| bgcolor=#fff width=100%
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!align=center|Contacts
 
!align=center|Contacts
 
|-
 
|-
|width=62%|'''StepConf improvements ([https://sourceforge.net/p/emc/feature-requests/60/], [https://sourceforge.net/p/emc/feature-requests/58/], [https://sourceforge.net/p/emc/feature-requests/57/]):'''  [http://linuxcnc.org/docs/html/config/stepconf.html StepConf] is a gui that helps people configure LinuxCNC for many kinds of common machines.  It has some missing features that should be easy to add.
+
|width=62%|'''Conditional G-code and arithmetic expressions parser:'''  Implement a grammar parser for conditional and arithmetic expressions within custom G-code, maybe using Boost.Spirit or some other library. [https://github.com/alexrj/Slic3r/issues/3390 #3390]
|Python
+
|C++
|align=center|EASY
+
|align=center|Easy-Medium
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|SebKuzminsky]]
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Alessandro/Joseph]]
 
|-  
 
|-  
|width=62%|'''Add flow control to halstreamer ([https://sourceforge.net/p/emc/feature-requests/125/]):''' The userspace program [http://linuxcnc.org/docs/html/man/man1/halstreamer.1.html halstreamer] and its realtime companion [http://linuxcnc.org/docs/html/man/man9/streamer.9.html streamer] make up a utility for moving arbitrary data into the realtime core of LinuxCNC.  It currently streams data at maximum rate, and it would be good to add flow control.
+
|width=62%|'''Port the GUI to C++:''' The GUI is currently coded in Perl using wxWidgets and our goal is to have it ported to C++. The wxWidgets API is almost identical between Perl and C++, so it's an easy task. There are a couple things where we use the dynamic features of Perl which are trickier and interesting to port.
|C
+
|C++/wxWidgets
|align=center|MEDIUM
+
|align=center|Easy
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|SebKuzminsky]]
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Alessandro/Joseph]]
 
|-
 
|-
|width=62%|'''New realtime kernels ([http://thread.gmane.org/gmane.linux.distributions.emc.user/56252]):''' LinuxCNC supports two realtime kernels: [https://www.rtai.org/ RTAI] and [https://rt.wiki.kernel.org/ Preempt-RT].  We target a variety of Debian-based distributions, and we provide debian packages of the realtime kernels we need. The goal of this project is to expand [https://github.com/SebKuzminsky/linux-rtai-build existing packaging infrastructure] to build newer versions of RTAI and Preempt-RT, for [https://www.debian.org/releases/jessie/ Debian Jessie] and [http://releases.ubuntu.com/14.04/ Ubuntu Trusty].
+
|width=62%|'''Port the SVGNest library to C++:''' The SVGNest library provides an algorithm for polygon nesting. It's written in JavaScript and a C++ port of it would improve Slic3r's auto-arrange feature. [https://github.com/alexrj/Slic3r/issues/3237 #3237]
|Shell, make, debian packaging tools
+
|C++
|align=center|MEDIUM
+
|align=center|Easy
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|SebKuzminsky]]
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Alessandro/Joseph]]
 
|-
 
|-
|width=62%|'''Add peck to rigid tapping ([https://sourceforge.net/p/emc/feature-requests/78/]):''' Given adequate feedback from the machine, LinuxCNC supports [https://www.youtube.com/watch?v=Ja2LbAAJmls rigid tapping] via [http://linuxcnc.org/docs/html/gcode/gcode.html#sec:G33_1-Rigid-Tapping G33.1] G-code. Some kinds of taps and materials benefit from "peck tapping", where the tap is backed out from the work piece periodically. Peck tapping currently has to be done "by hand", by programming one G33.1 move for each peck. This task is to add support for a "peck depth" parameter to the G33.1 command, analogous to peck drilling in [http://linuxcnc.org/docs/html/gcode/gcode.html#sec:G83-Drilling-Peck G83].
+
|width=62%|'''Fix bugs of the Boost.Voronoi library:''' The good but unmaintained Boost.Voronoi library has a couple minor issues affecting Slic3r's results. Interesting task for learning the Voronoi algorithm and how to troubleshoot a computational geometry issue. [https://github.com/alexrj/Slic3r/issues/2948 #2948]
|C, C++
+
|C++
|align=center|MEDIUM
+
|align=center|Medium
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|SebKuzminsky]]
+
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Alessandro/Joseph]]
 +
|-
 +
|width=62%|'''Wireframe printing:''' Implement the wireframe printing algorithm. [https://github.com/alexrj/Slic3r/issues/2274 #2274]
 +
|C++
 +
|align=center|Medium
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Alessandro/Joseph]]
 +
|-
 +
|width=62%|'''Automatic part rotation:''' Automatically rotate a part to make some face of the part the bottom. [https://github.com/alexrj/Slic3r/issues/3047 #3047]
 +
|C++
 +
|align=center|Medium
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Alessandro/Joseph]]
 +
|-
 +
|width=62%|'''Manual support creation:''' Allow users to place and move support pillars by clicking in the 3D GUI. [https://github.com/alexrj/Slic3r/issues/3062 #3062]
 +
|C++/Perl/OpenGL
 +
|align=center|Medium/Hard
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Alessandro/Joseph]]
 +
|-
 +
|width=62%|'''Refactor the TriangleMesh class and support non-solid walls:''' Replace the internal mesh representation (currently based on admesh) using an existing 3D mesh library or implementing a half-edge structure; only use admesh for fixing models. Keep non-solid walls and slice them as single paths. Bonus: import SVG paths and position them freely using the GUI for printing as single extrusions. [https://github.com/alexrj/Slic3r/issues/3560 #3560] [https://github.com/alexrj/Slic3r/issues/3523 #3523]
 +
|C++
 +
|align=center|Medium/Hard
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Alessandro/Joseph]]
 +
|-
 +
|width=62%|'''Implement 3MF format read/write:''' Add the 3MF format for both reading and writing. [https://github.com/alexrj/Slic3r/issues/2811 #2811]
 +
|C++
 +
|align=center|Easy
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Alessandro/Joseph]]
 +
|-
 +
|width=62%|'''Non-planar printing:''' Implement techniques for non-planar printing. [https://github.com/alexrj/Slic3r/issues/3442 #3442]
 +
|C++
 +
|align=center|Medium
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Alessandro/Joseph]]
 +
|-
 +
|width=62%|'''Support surface colors and mixing extruders:''' Read surface colors from AMF or OBJ and keep them throughout the slicing process in order to generate G-code for mixing extruders. [https://github.com/alexrj/Slic3r/issues/3546 #3546]
 +
|C++/Perl
 +
|align=center|Hard
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Alessandro/Joseph]]
 +
|-
 +
|width=62%|'''Clean the libslic3r API and write bindings for it:''' Expose the internal algorithms of Slic3r as a library and write bindings for Python, Perl etc.
 +
|C++/any
 +
|align=center|Easy
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Alessandro/Joseph]]
 +
|-
 +
|width=62%|'''Write a Slic3r plugin for Grasshopper:''' Expose Slic3r functionality as many separate components that can be plugged in larger GH definitions (for example: slice a NURBS model in GH and feed the slices to the toolpath generation process in order to skip mesh generation, or provide flow calculation for people driving 5-axis robots with custom motion). This requires a fair amount of design work.
 +
|C++
 +
|align=center|Medium/Hard
 +
|align=center|[[Google_Summer_of_Code/Project_Ideas#Mentors|Alessandro/Joseph]]
 
|}
 
|}
  
Line 649: Line 680:
 
! Contact
 
! Contact
 
|-
 
|-
|width=62%|'''[http://www.freecadweb.org/wiki/index.php?title=Advance_FreeCAD_test_system Advance FreeCAD test system ]''': Create a framework for result file based comparisons and workbench specific comparators. Also creation of test cases should be simplified by a GUI or wizard.
+
|width=62%|'''[http://www.freecadweb.org/wiki/Advanced_FreeCAD_test_system Advanced FreeCAD test system ]''': Create a framework for result file based comparisons and workbench specific comparators. Also creation of test cases should be simplified by a GUI or wizard.
 
|align=center|Python/C++
 
|align=center|Python/C++
 
|align=center|Medium
 
|align=center|Medium
 
|align=center|[http://forum.freecadweb.org/memberlist.php?mode=viewprofile&u=686 Ickby]
 
|align=center|[http://forum.freecadweb.org/memberlist.php?mode=viewprofile&u=686 Ickby]
 
|-
 
|-
|width=62%|'''[http://www.freecadweb.org/wiki/index.php?title=Topological_Naming_Project Topological Naming Project]''': Theory evaluation of possible algorithms in respect to FreeCADs internal architecture and implementation of a prototype to show the general applicability of the choosen approach.
+
|width=62%|'''[http://www.freecadweb.org/wiki/Topological_Naming_Project Topological Naming Project]''': Implementation of subshape identifiers based on creation history and update of topology class to work with those identifiers.
 
|align=center|C++
 
|align=center|C++
 
|align=center|Hard
 
|align=center|Hard
 
|align=center|[http://forum.freecadweb.org/memberlist.php?mode=viewprofile&u=686 Ickby]
 
|align=center|[http://forum.freecadweb.org/memberlist.php?mode=viewprofile&u=686 Ickby]
 
|-
 
|-
|width=62%|'''[http://www.freecadweb.org/wiki/index.php?title=Direct_modeling_tools Direct modeling tools]''': Create a new layer of tools and objects, that work on top of existing Part-based 3D objects, that allow a user to graphically modify their geometry.
+
|width=62%|'''[http://www.freecadweb.org/wiki/Direct_modeling_tools Direct modeling tools]''': Create a new layer of tools and objects, that work on top of existing Part-based 3D objects, that allow a user to graphically modify their geometry.
 
|align=center|Python/C++
 
|align=center|Python/C++
 
|align=center|Medium
 
|align=center|Medium
 
|align=center|[http://forum.freecadweb.org/memberlist.php?mode=viewprofile&u=68 Yorik]
 
|align=center|[http://forum.freecadweb.org/memberlist.php?mode=viewprofile&u=68 Yorik]
 
|-
 
|-
|width=62%|'''[http://www.freecadweb.org/wiki/index.php?title=FEM_Post_Processing_based_on_VTK FEM Post Processing based on VTK]''': Advance the currently prototyped FEM post processing based on the vtk library with more functionality and ensure a better itnegration into the workbench
+
|width=62%|'''[http://www.freecadweb.org/wiki/FEM_Post_Processing_based_on_VTK FEM Post Processing based on VTK]''': Base the existing FEM VTK post processing on the updated SMESH data structure and design a python interface for it. Also improve integration into the workbench.
 
|align=center|C++
 
|align=center|C++
 
|align=center|Medium
 
|align=center|Medium
 
|align=center|[http://forum.freecadweb.org/memberlist.php?mode=viewprofile&u=686 Ickby]
 
|align=center|[http://forum.freecadweb.org/memberlist.php?mode=viewprofile&u=686 Ickby]
 
|-
 
|-
|width=62%|'''[http://www.freecadweb.org/wiki/index.php?title=Multithreading_in_document_evaluation_and_Part_workbench Multithreading in document evaluation and Part workbench]''': Multithread the graph based document object evaluation with intels tbb library and integrate OpenCascades multhithreading
+
|width=62%|'''[http://www.freecadweb.org/wiki/IPython_notebook_integration IPython notebook integration]''': Create a way to export the open inventor scenegraph as a JavaScript file and add functions for seamless interaction with the IPython display system
 +
|align=center|C++, JavaScript, Python
 +
|align=center|Easy
 +
|align=center|[http://forum.freecadweb.org/memberlist.php?mode=viewprofile&u=686 Ickby]
 +
|-
 +
|width=62%|'''[https://www.freecadweb.org/wiki/Integrate_Cycles_renderer Integrate Cycles renderer]''': Add Blender's new Cycles renderer as a new render engine to the Raytracing Workbench
 
|align=center|C++
 
|align=center|C++
 
|align=center|Medium
 
|align=center|Medium
|align=center|[http://forum.freecadweb.org/memberlist.php?mode=viewprofile&u=686 Ickby]
+
|align=center|[http://forum.freecadweb.org/memberlist.php?mode=viewprofile&u=68 Yorik]
 
|-
 
|-
|width=62%|'''[http://www.freecadweb.org/wiki/index.php?title=Extend_Part_workbench_python_API Extend Part workbench python API ]''': Expose 2D geometry API from opencascade and extend the 3D geometry API with then possible new functions
+
|width=62%|Stepwise integration of ElmerFem into FreeCAD should be done in three phases:
|align=center|C++, Python
+
Phase 1 - '''[https://www.freecadweb.org/wiki/New_solver_object_for_handling_ElmerFEM_execution_in_FEM-workbench New solver object for handling ElmerFEM execution in FEM-workbench]'''.
|align=center|Easy
+
Phase 2 - '''[https://www.freecadweb.org/wiki/Mapping_of_main_ElmerSolver_setting_for_mechanical_simulations Mapping of main ElmerSolver setting for mechanical simulations]'''.
|align=center|[http://forum.freecadweb.org/memberlist.php?mode=viewprofile&u=686 Ickby]
+
Phase 3 - '''[https://www.freecadweb.org/wiki/Give_graphical_access_to_a_wide_range_of_available_ElmerSolver_setting_from_within_FreeCAD Give graphical access to a wide range of available ElmerSolver setting from within FreeCAD]'''
 +
|align=center|Python/C++
 +
|align=center|Medium-Hard
 +
|align=center|[https://forum.freecadweb.org/memberlist.php?mode=viewprofile&u=2069 Bernd], [https://forum.freecadweb.org/memberlist.php?mode=viewprofile&u=6222 HoWil]
 
|-
 
|-
|width=62%|'''[General measure framework]''': Build a unified measure framework working with different workbenches and objects for advanced data collection
+
|width=62%|'''[https://www.freecadweb.org/wiki/PartDesign_Updates PartDesign Updates]''': Finish PartDesign port to new Body object, simplify the workflows and extend tools while making them more robust.
 
|align=center|C++, Python
 
|align=center|C++, Python
 
|align=center|Medium
 
|align=center|Medium
 
|align=center|[http://forum.freecadweb.org/memberlist.php?mode=viewprofile&u=686 Ickby]
 
|align=center|[http://forum.freecadweb.org/memberlist.php?mode=viewprofile&u=686 Ickby]
 
|-
 
|-
|width=62%|'''[http://www.freecadweb.org/wiki/index.php?title=IPython_notebook_integration IPython notebook integration]''': Create a way to export the open inventor scenegraph as a JavaScript file and add functions for seamless interaction with the IPython display system
+
|width=62%|'''[https://www.freecadweb.org/wiki/GSoC_FEM_Solver_Z88 GSoC FEM Solver Z88]''': Extend the capabilities of FEM solver Z88OS in FreeCAD FEM workbench.
|align=center|C++, JavaScript, Python
+
|align=center|Python
|align=center|Easy
+
|align=center|Easy-Medium
|align=center|[http://forum.freecadweb.org/memberlist.php?mode=viewprofile&u=686 Ickby]
+
|align=center|[http://forum.freecadweb.org/memberlist.php?mode=viewprofile&u=686 Bernd]
 +
|-
 +
|width=62%|'''[https://www.freecadweb.org/wiki/GSoC_FEM_Unit_Tests GSoC FEM Unit Tests]''': Extend the unit tests of FreeCAD FEM workbench.
 +
|align=center|Python
 +
|align=center|Easy-Medium
 +
|align=center|[http://forum.freecadweb.org/memberlist.php?mode=viewprofile&u=686 Bernd]
 +
|-
 +
|width=62%|'''[https://www.freecadweb.org/wiki/GSoC_Path/Robot_Integration GSoC Path/Robot Integration]''': Path is the CNC/CAM workbench. It currently lacks any simulation capability. Robot workbench is a tool for simulating industrial robots. Extend Path and Robot workbenches to support simulation of CNC operations in the Robot workbench.
 +
|align=center|C++, Python
 +
|align=center|Easy-Medium
 +
|align=center|[http://forum.freecadweb.org/memberlist.php?mode=viewprofile&u=68 Yorik], [https://forum.freecadweb.org/memberlist.php?mode=viewprofile&u=708 sliptonic]
 
|}
 
|}
  
Line 743: Line 792:
 
** teepee on irc.freenode.net
 
** teepee on irc.freenode.net
 
** OpenSCAD Mentor
 
** OpenSCAD Mentor
 
* Dongxu Li
 
** dli on irc.freenode.net
 
** LibreCAD Mentor
 
 
* Jose Rallaz
 
** rallazz on irc.freenode.net
 
** LibreCAD Mentor
 
  
 
* Ries van Twisk
 
* Ries van Twisk
 
** ries on irc.freenode.net
 
** ries on irc.freenode.net
** LibreCAD Mentor
 
 
* Jasleen Kaur
 
** jasleen on irc.freenode.net
 
 
** LibreCAD Mentor
 
** LibreCAD Mentor
  
Line 764: Line 801:
 
** LibreCAD Mentor
 
** LibreCAD Mentor
  
* Sebastian Kuzminsky
+
* Alessandro Ranellucci
** seb_kuzminsky on irc.freenode.net
+
** Sound on irc.freenode.net
** LinuxCNC Mentor
+
** Slic3r Mentor
 +
 
 +
* Joseph Lenox
 +
** LoH on irc.freenode.net
 +
** Slic3r Mentor

Revision as of 16:19, 6 March 2017

If you want to work on computer-aided design (CAD), geometry, or graphics, you've come to the right place! Help us improve open source CAD.

Well prepared proposals from capable students have an outstanding chance of getting selected. We consider proposals for all skill levels ranging from simple to crazy hard and everything in between. Introduce yourself, and we'll help you plan one right for you.

Remember that project descriptions are just initial ideas. You must expand with considerably more detail. Change the goals to fit your experience and interests. See our checklist to get started.

This year, BRL-CAD is coordinating with five other communities that will get 1-2 students each to help bridge our work and encourage collaboration. Projects that help exchange data or share code are desired!

cutout_sticker_256.png logo.png LogoLibrecad_logo.png
BRL-CAD: 3D solid modeling, geometry processing, and robust high-performance ray tracing. Help us make a better CAD system. OpenSCAD: rich syntax, programmable geometry. Lots of possibilities to make it interoperate with BRL-CAD and LibreCAD. LibreCAD: specializes in 2D CAD modeling, drafting, drawings. Help build a bridge to BRL-CAD or add STEP support.
STEPcode_logo_gears_light.png Slic3r_128px.png logo.png
STEPcode: file format on steroids, STEP is a complex standard for geometry used by nearly every pro CAD system. Slic3r: toolpath/G-code generator for 3D printers. FreeCAD: parametric 3D modelling with strong Python interface and general engineering functionality like FEM and CAM

Project titles link to a page with more details.

BRL-CAD Projects

High Priority Topics

Languages Difficulty Contacts
Convert MGED from Tk to Qt: Transition BRL-CAD's graphical applications from the Tk toolkit to the Qt toolkit. C/C++/Tcl/Qt HARD Rossberg, Yapp
Annotations: Implement support for 2D annotations, labels that can be added to geometry. C/C++ MEDIUM Morrison, Yapp

Web Development

Languages Difficulty Contacts
Benchmark Performance Database: BRL-CAD's Benchmark has been used for two decades to compare performance across configurations. Build a database website. Depends (likely PHP or Python) EASY Morrison
Synchronize Wiki with Docbook: We use Docbook for most of our user documentation but find editing a wiki page much easier to use. Set up a system so the two are always in sync. Depends (likely PHP or Python) MEDIUM Yapp
Online Geometry Viewer Interface: Continuation of existing work, improve our interface for viewing geometry online. Focus on the front-end usability. Depends (likely PHP or Python) MEDIUM Morrison
Online Geometry Viewer Back-end: Continuation of existing work, improve our interface for viewing geometry online. Focus on the back-end infrastructure. Depends (likely PHP or Python) HARD Morrison
Mediawiki 3D Geometry Extension: Write an extension for Mediawiki that will visualize our .g files. Maybe leverage LLVM C->Javascript translation. Depends (likely PHP or Python) HARD Morrison
Materials Database: Create a Materials Database web site for collecting, managing, and providing programmatic interfaces to material properties. Depends (likely PHP or Python) MEDIUM Morrison, Yapp

Geometry

Languages Difficulty Contacts
NURBS Editing Support: BRL-CAD doesn't currently have support for editing NURBS primitives. Fix that. C/Tcl MEDIUM Yapp
Overlap tool: Resolving geometric interferences (aka overlaps) is a common geometry editing activity. Design an awesome GUI for resolving conflicts. Tcl EASY Yapp, Morrison, Greenwald
Vector Drawings from NURBS: Huge impact here if you can update one or more of our raytracers to provide vector output instead of raster. Perhaps render directly to PDF or SVG. C and/or C++ EASY Rossberg
NMG Editing: Our structured polygonal mesh geometry (N-Manifold Geometry = NMG) is a common export format, but our NMG edit support is non-existent. We need something. C HARD Morrison, Rossberg
Visualizing Constructive Solid Geometry (CSG): CSG forms a directed acyclic graph. Tree view widgets show a simple hierarchical representation, but we need something better. C/C++ EASY Morrison
Plate Mode NURBS raytracing: Imported NURBS geometry often does NOT enclose space (i.e., not solid), so add support for specifying an implicit thickness. C/C++ HARD Morrison
STEP exporter: We have an importer, we need a comprehensive exporter with support for implicit CSG, NURBS, or polygonal mesh geometry. C/C++ EASY Yapp, Morrison
STEP importer improvements: We have an importer, but it's preliminary. Add support for importing hierarchy information, polygonal geometry, and implicit geometry. C/C++ MEDIUM Yapp
STEP AP 242 Parser: We already parse a subset of AP203, but the new kid on the block is AP242. Make AP242 work with BRL-CAD's step-g importer. C++ HARD Mark, Charlie, Yapp, Kamga
Convert BoT to Pipe: Command line interface to convert facetted fluid/electrical line geometry into BRL-CAD native pipe solids. C/C++/Tcl MEDIUM Morrison
IGES import improvements: We have extensive support for the International Geometry Exchange Standard (IGES) with our g-iges and iges-g converters, but they need updating. C MEDIUM Morrison
Geometry Conversion Library: Probably our biggest open source asset is our extensive collection of importers and exporters. Turn them all into a universal conversion library. C/C++ EASY Greenwald, Morrison, Rossberg
COLLADA Importer: Create an importer for the COLLADA file format. C/C++ MEDIUM Morrison
X3D Importer: Create an importer for the X3D file format. C/C++ MEDIUM Morrison, Kamga
OpenSCAD Importer: Create an importer for OpenSCAD's format. C/C++ EASY Morrison
OpenSCAD Exporter: Create an exporter for OpenSCAD's format. C/C++ EASY Morrison
Python Geometry: Wrap BRL-CAD's primitives in Python, make it easier to script geometry creation. Python Easy Morrison
Perl Geometry: Wrap BRL-CAD's primitives in Perl, make it easier to script geometry creation. Perl Easy Browder

Performance & Quality

Languages Difficulty Contacts
OpenCL GPGPU Raytracing: We have about two dozen primitives that need to have a ray-object intersection function converted from C to OpenCL. C/C++ MEDIUM Morrison
Coherent Raytracing: Our current raytrace pipeline dispatches and processes one ray at a time. Send bundles and convert the pipeline into phases. C/C++ MEDIUM Morrison, Rossberg
NURBS Booleans: We have NURBS surface-surface intersections working. Now we're using them to create evaluated forms of our CSG geometry. Make it more robust and faster. C/C++ HARD Yapp, Rossberg
NURBS Optimization and Cleanup: We have a fantastic implementation of NURBS evaluation but haven't gone back to clean up or speed it up. Make it pretty and fast. C/C++ MEDIUM Yapp, Morrison
Fix Bugs: We take pride in our breadth of functionality and time-tested stability. We still have bugs. Identify some and fix them! C EASY Browder
NMG Raytracing Performance Improvement: BRL-CAD's structured mesh geometry (N-Manifold Geometry = NMG) needs some time in a profiler. Malloc during raytracing is bad. C HARD Morrison, Greenwald
Mesh library cleanup: BRL-CAD has an extensive n-manifold polygonal mesh library that needs some refactoring, testing, and optimization rework. C MEDIUM Morrison, Rossberg
Space Partitioning for Tessellation: Technically an optimization task, make our geometry converters run an order of magnitude faster by using spatial partitioning during tessellation. C HARD Greenwald, Yapp, Morrison
Code Reduction: BRL-CAD is more than 1M lines of code. Approximately 10% of that is duplication. Help reduce that percentage. C EASY Greenwald, Morrison
Header Restructuring: BRL-CAD has about two dozen libraries with a single header declaring the entire public API. Break up those monster headers into modular sub-headers. C EASY Greenwald, Morrison
Faster Overlap Detection: BRL-CAD has a 'gqa' tool that detects overlaps. Implement a replacement using a better approach. C MEDIUM Greenwald, Morrison

Infrastructure

Languages Difficulty Contacts
New Cross-Platform 3D Display Manager: BRL-CAD uses display managers for visualizing 3D geometry in a window. We want one that uses a cross-platform toolkit such as Qt + OGRE. C/C++ MEDIUM Morrison
New Cross-Platform 2D Framebuffer: BRL-CAD uses framebuffers to display 2D imagery. The merits of having a single interface for most platforms is self-evident. C/C++ EASY Morrison, Yapp
Advanced Sketch Primitive Editor: BRL-CAD has a 2D sketch primitive, but our handling of editing sketches doesn't incorporate parametric constraints. There are potentially applicable codes in the open source community we can leverage for this, or we can roll our own solution. C/C++ MEDIUM Yapp
Geometric Constraint Solver: Our LIBPC parametric constraint library is the work-in-progress foundation of being able to validate and describe geometry relationships. C/C++ HARD Morrison
MGED to Archer Command Migration: Our next-generation editor (Archer) needs to have the same (700+) commands that are in MGED. Help make our next CAD interface awesome. C and Tcl EASY Yapp, Kamga
General Tree Walker: We have a half dozen or more functions that will traverse a geometry hierarchy in different ways. There only needs to be one. C EASY Greenwald, Yapp, Morrison
Consolidate image processing: We have 100+ image processing tools that independently read and write file data. Needs much reuse love. C EASY Greenwald, Daga
GED Transactions: Migrating functionality from our MGED geometry editor into our LIBGED library provided excellent code reuse, but now we need transactions so that actions can be undone. C EASY Morrison, Daga
Add exec option to search: Our LIBGED library provides a search command very similar to the UNIX find command for scanning through geometry. Implement the -exec option. C EASY Yapp, Daga
Geometry Selection Functionality: Implement a new selection command that lets you temporarily group objects based on spatial, attribute, or geometric properties. C EASY Morrison
Astronomical units: We already go "big", but accurately modeling at a galactic scale redefines that notion... C EASY Morrison, Greenwald, Daga
Object-oriented C++ Geometry API: Extend our C++ library which provides a simple interface to BRL-CAD's core functionality. Kickstart start a new geometry kernel. C++ MEDIUM Rossberg, Kamga
Point Clouds: BRL-CAD has a basic point cloud primitive. Beef it up, make it faster, maybe integrate with the Point Cloud Library (PCL) for evaluation. C/C++ MEDIUM Browder, Kamga
Annotations: Implement support for 2D annotations, labels that can be added to geometry. Perl EASY Browder
Python Bindings: With or without SWIG, wrap BRL-CAD's command library API so you can issue our creation and editing commands from Python. Python EASY Morrison
Perl Bindings: With SWIG, wrap BRL-CAD's ray-tracing library API so you can issue calls to librt ray-tracing functions from Perl. Perl EASY Browder, Daga

Rendering & Scientific Analysis

Languages Difficulty Contacts
Shader Enhancements: We have a functioning custom shader system in BRL-CAD, but there are now folks that specialize and there's lot of room for improvements. C EASY Morrison, Greenwald
Material and Shader Objects: This one is a biggie but easy. Implement new object entities for describing shaders and material properties, use them during ray tracing. C EASY Morrison
GUI Integration of Analysis Tools: There are a lot of visualization tools in BRL-CAD, but most aren't integrated with the GUI. Visualizing directly within the GUI would improve usability. C MEDIUM Rossberg
Generalized abstracted spacial partitioning capability: Need more be said? If you're familiar with BSPs, KD trees, and grid structures, then this one is for you. C HARD Greenwald, Morrison
High Dynamic Range Support: We don't have displays supporting this yet, but that's never stopped us before. Implement support for images with more than 8-bits per channel. C and/or C++ EASY Greenwald, Yapp
Analysis Library: There are various tools in BRL-CAD for calculating weights, moments of inertia, and more. They're stand-alone applications. Turn them into a library. C HARD Yapp, Morrison
Celestial mechanics particle system: Simulate solar systems and galaxies. C/C++ MEDIUM Greenwald
Non-vacuum gravity simulator: Simulate falling to earth. C/C++ MEDIUM Greenwald, Morrison, Yapp
Polarization: We already do multispectral ray tracing, but don't simulate polarization effects. Implement ray splitting and filtering. C HARD Morrison, Rossberg
Density functions: Accurately represent everything from atmosphere to bone. Implement support for parametric density functions for homogenous materials. C HARD Rossberg, Morrison
Bending light: Think gravity wells and satellite cameras. C MEDIUM Morrison
Appleseed renderer integration: Appleseed is rendering infrastructure used by the film industry to make pretty pictures. Make it shoot rays at our native geometry with our ray trace library. C MEDIUM Morrison

<An Idea of Your Own>

Do you have an idea of your own? Maybe you need more ideas to inspire you? We're very open to areas of academic research, industry applications, and ideas that get you hooked on open source CAD development.

Requirements:

  • Passion for the task being suggested

OpenSCAD Projects

OpenSCAD is a parametric solid 3D modeling tool which uses a Domain Specific Language to specify designs as plain text. It is specifically designed with 3D printing in mind.

Languages/Tools Difficulty Contacts
Improve DXF Import and Export: Look into using an external library for DXF import (and export?). C++ MEDIUM Marius/Torsten
OpenSCAD Standard Library: Create a standard user-space OpenSCAD library. OpenSCAD MEDIUM Marius/Torsten
OpenGL framework: Rewrite the OpenGL rendering code to use a rendering framework. Focus on compatibility with OpenGL ES2 and rendering performance. C++ OpenGL MEDIUM Marius/Torsten
Persistent Caching: Implement a disk-based version of the internal memory caches C++ MEDIUM Marius/Torsten
Multi-threaded Geometry Evaluation: Implement multi-threaded evaluation of geometry. C++ MEDIUM Marius/Torsten
Survey of CSG algorithms: Review existing research, evaluate and prototype algorithms. C++ MEDIUM-HARD Marius/Torsten
Issue Handling: Day-to day issue and community management, fix incoming and existin issues. Good place to get started. C++ EASY Marius/Torsten
Test Framework Improvements: Improve tests and test framework. Good place to get started. C++ EASY-MEDIUM Marius/Torsten
SVG Import: Improve/finalize SVG import. C++, SVG MEDIUM Marius/Torsten
Larger tasks for particularly experienced people: Various harder tasks which are not fully specified and requires significant effort to design and implement. C++ HARD Marius/Torsten

The OpenSCAD team is also open to new ideas. Please get in touch to discuss your ideas and convince a mentor to back it.

LibreCAD Projects

LibreCAD is a free Open Source CAD application for Windows, Apple and Linux. Support and documentation is free from our large, dedicated community of users, contributors and developers. Please refer to LibreCAD GSoC 2015 ideas for more detailed description.


Languages Difficulty Contacts
LibreCAD 3 UI: Add GUI support for drawing and editing actions to start exposing it to end users. C++,Math MEDIUM TO HIGH LordOfBikes, ries
Improve Spline/Bézier Support C++,Math MEDIUM TO HIGH LordOfBikes, ries
Improve contour topology support: Hatching and area enclosed in a contour C++ MEDIUM LordOfBikes, ries
Improve precision and robustness of equation solvers C++ MEDIUM LordOfBikes, ries
Conic curve support C++ MEDIUM LordOfBikes, ries
SmartSnap: Adding and improve snap features for drawing C++ MEDIUM LordOfBikes, ries
Support for multiple units upon data entry C++ MEDIUM LordOfBikes

STEPcode Projects

Languages Difficulty Contacts
STEP Coverage Test: Write a program that links against STEPcode and generates a STEP output instantiating every entity for a given schema. Goal is a comprehensive program and data file for testing STEP import/export. ANY (C/C++, Python, Java, Perl, ...) EASY Mark, Charlie
STEP Incremental Loading: Basically take a work-in-progress to the next level. Modify the STEP parser to only read what it needs when it needs it, test, clean up, profile, and optimize. C++ EASY Mark, Charlie
STEP Minimal Examples: Create minimal examples for various schemas - such as AP214 or AP242 - in the style of ap203min C++ MEDIUM Mark, Charlie
STEP Multiple Protocol Parsing: Currently creates a parser that works with a specific application protocol (e.g., AP203, AP214). Make it work with multiple simultaneously. C++ MEDIUM Mark, Charlie
STEP Source Code Documentation: We already use doxygen, but could do much better. Improve code documentation and utilize additional doxygen features such as topic pages. Add a 'make doxygen' target to invoke doxygen. C/C++ EASY Mark, Charlie
STEP EXPRESS Documentation: Write 'exp2html', similar to exp2py or exp2cxx (python and C++ generators) but outputs graphs and hyperlinked documentation with JavaScript search. Output will include EXPRESS comments (this requires modifying the parser). C/C++, JavaScript MEDIUM Mark, Charlie
STEP Viewer: STEP is a common CAD file format supported by just about every major CAD system. Given we have an importer and an interface for displaying geometry, a stand-alone STEP file viewer has some great potential. C/C++ MEDIUM Mark, Charlie
STEP Code Refactoring: Split large files and functions, add unit tests, move contents of LISTdo loops into separate functions. C/C++ EASY Mark, Charlie
STEP Thread Safety and Performance: Modify the libraries to improve thread safety, increase performance using hotspot analysis C/C++ MEDIUM Mark, Charlie

Slic3r Projects

Slic3r is CAM desktop application for toolpath/G-code generation for 3D printers.

Languages Difficulty Contacts
Conditional G-code and arithmetic expressions parser: Implement a grammar parser for conditional and arithmetic expressions within custom G-code, maybe using Boost.Spirit or some other library. #3390 C++ Easy-Medium Alessandro/Joseph
Port the GUI to C++: The GUI is currently coded in Perl using wxWidgets and our goal is to have it ported to C++. The wxWidgets API is almost identical between Perl and C++, so it's an easy task. There are a couple things where we use the dynamic features of Perl which are trickier and interesting to port. C++/wxWidgets Easy Alessandro/Joseph
Port the SVGNest library to C++: The SVGNest library provides an algorithm for polygon nesting. It's written in JavaScript and a C++ port of it would improve Slic3r's auto-arrange feature. #3237 C++ Easy Alessandro/Joseph
Fix bugs of the Boost.Voronoi library: The good but unmaintained Boost.Voronoi library has a couple minor issues affecting Slic3r's results. Interesting task for learning the Voronoi algorithm and how to troubleshoot a computational geometry issue. #2948 C++ Medium Alessandro/Joseph
Wireframe printing: Implement the wireframe printing algorithm. #2274 C++ Medium Alessandro/Joseph
Automatic part rotation: Automatically rotate a part to make some face of the part the bottom. #3047 C++ Medium Alessandro/Joseph
Manual support creation: Allow users to place and move support pillars by clicking in the 3D GUI. #3062 C++/Perl/OpenGL Medium/Hard Alessandro/Joseph
Refactor the TriangleMesh class and support non-solid walls: Replace the internal mesh representation (currently based on admesh) using an existing 3D mesh library or implementing a half-edge structure; only use admesh for fixing models. Keep non-solid walls and slice them as single paths. Bonus: import SVG paths and position them freely using the GUI for printing as single extrusions. #3560 #3523 C++ Medium/Hard Alessandro/Joseph
Implement 3MF format read/write: Add the 3MF format for both reading and writing. #2811 C++ Easy Alessandro/Joseph
Non-planar printing: Implement techniques for non-planar printing. #3442 C++ Medium Alessandro/Joseph
Support surface colors and mixing extruders: Read surface colors from AMF or OBJ and keep them throughout the slicing process in order to generate G-code for mixing extruders. #3546 C++/Perl Hard Alessandro/Joseph
Clean the libslic3r API and write bindings for it: Expose the internal algorithms of Slic3r as a library and write bindings for Python, Perl etc. C++/any Easy Alessandro/Joseph
Write a Slic3r plugin for Grasshopper: Expose Slic3r functionality as many separate components that can be plugged in larger GH definitions (for example: slice a NURBS model in GH and feed the slices to the toolpath generation process in order to skip mesh generation, or provide flow calculation for people driving 5-axis robots with custom motion). This requires a fair amount of design work. C++ Medium/Hard Alessandro/Joseph

FreeCAD Projects

Language Difficulty Contact
Advanced FreeCAD test system : Create a framework for result file based comparisons and workbench specific comparators. Also creation of test cases should be simplified by a GUI or wizard. Python/C++ Medium Ickby
Topological Naming Project: Implementation of subshape identifiers based on creation history and update of topology class to work with those identifiers. C++ Hard Ickby
Direct modeling tools: Create a new layer of tools and objects, that work on top of existing Part-based 3D objects, that allow a user to graphically modify their geometry. Python/C++ Medium Yorik
FEM Post Processing based on VTK: Base the existing FEM VTK post processing on the updated SMESH data structure and design a python interface for it. Also improve integration into the workbench. C++ Medium Ickby
IPython notebook integration: Create a way to export the open inventor scenegraph as a JavaScript file and add functions for seamless interaction with the IPython display system C++, JavaScript, Python Easy Ickby
Integrate Cycles renderer: Add Blender's new Cycles renderer as a new render engine to the Raytracing Workbench C++ Medium Yorik
Stepwise integration of ElmerFem into FreeCAD should be done in three phases:

Phase 1 - New solver object for handling ElmerFEM execution in FEM-workbench. Phase 2 - Mapping of main ElmerSolver setting for mechanical simulations. Phase 3 - Give graphical access to a wide range of available ElmerSolver setting from within FreeCAD

Python/C++ Medium-Hard Bernd, HoWil
PartDesign Updates: Finish PartDesign port to new Body object, simplify the workflows and extend tools while making them more robust. C++, Python Medium Ickby
GSoC FEM Solver Z88: Extend the capabilities of FEM solver Z88OS in FreeCAD FEM workbench. Python Easy-Medium Bernd
GSoC FEM Unit Tests: Extend the unit tests of FreeCAD FEM workbench. Python Easy-Medium Bernd
GSoC Path/Robot Integration: Path is the CNC/CAM workbench. It currently lacks any simulation capability. Robot workbench is a tool for simulating industrial robots. Extend Path and Robot workbenches to support simulation of CNC operations in the Robot workbench. C++, Python Easy-Medium Yorik, sliptonic

Mentors

BRL-CAD operates under group mentorship. That means you can contact anyone, not just the person assigned to you, for assistance. The mailing list and IRC channel are the preferred communication methods.

  • Christopher Sean Morrison
    • brlcad on irc.freenode.net
    • Org admin, BRL-CAD open source project lead
  • Erik Greenwald
    • ``Erik on irc.freenode.net
    • Org admin, BRL-CAD core dev
  • Cliff Yapp
    • starseeker on irc.freenode.net
    • BRL-CAD Mentor, core dev
  • Daniel Rossberg
    • d_rossberg on irc.freenode.net
    • BRL-CAD Mentor, core dev, math expert
  • H.S. Rai
    • hsrai on irc.freenode.net
    • BRL-CAD Mentor, math expert
  • Tom Browder
    • BRL-CAD Mentor, analysis expert
  • Bryan Bishop
    • BRL-CAD Mentor, python guru
  • Isaac Kamga
    • Izakey on irc.freenode.net
    • BRL-CAD Mentor, C/C++ Programmer
  • Mohit Daga
    • zero_level irc.freenode.net
    • BRL-CAD Mentor, Computer Science Engineer
  • Mark Pictor
    • mpictor on irc.freenode.net
    • STEPcode Mentor
  • Charlie Stirk
    • cstirk
    • STEPcode Mentor
  • Marius Kintel
    • kintel on irc.freenode.net
    • OpenSCAD Mentor
  • Torsten Paul
    • teepee on irc.freenode.net
    • OpenSCAD Mentor
  • Ries van Twisk
    • ries on irc.freenode.net
    • LibreCAD Mentor
  • Armin Stebich
    • LordOfBikes on irc.freenode.net
    • LibreCAD Mentor
  • Alessandro Ranellucci
    • Sound on irc.freenode.net
    • Slic3r Mentor
  • Joseph Lenox
    • LoH on irc.freenode.net
    • Slic3r Mentor