Difference between revisions of "User:Xuwei/DevLog2019"
From BRL-CAD
(→Coummunity Bonding Period) |
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=Coding Period= | =Coding Period= | ||
| − | ==May 27th== | + | ==May== |
| + | ===May 27th=== | ||
*Looking at both libdxfrw(libdxfrw.h, dxfreader.cpp) and OpenSCAD(dxfdata.cc, dxfdim.cc, import.cc) relative code. | *Looking at both libdxfrw(libdxfrw.h, dxfreader.cpp) and OpenSCAD(dxfdata.cc, dxfdim.cc, import.cc) relative code. | ||
**Comparing the differences between these two on how they handle DXF data. | **Comparing the differences between these two on how they handle DXF data. | ||
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**dxflib does not store any entities, only pass supported entities. | **dxflib does not store any entities, only pass supported entities. | ||
**A useful link for understanding dxflib data structure.[https://qcad.org/doc/dxflib/2.5/classref/class_d_l___dxf.html] | **A useful link for understanding dxflib data structure.[https://qcad.org/doc/dxflib/2.5/classref/class_d_l___dxf.html] | ||
| − | ==May 28th== | + | ===May 28th=== |
*Move on to reading dxflib code for now | *Move on to reading dxflib code for now | ||
**Continue reading the link about the data structure of dxflib above. | **Continue reading the link about the data structure of dxflib above. | ||
**Trying to understand form the connection between dxflib and OpenSCAD code base. | **Trying to understand form the connection between dxflib and OpenSCAD code base. | ||
*Continue reading dxfdata.cc | *Continue reading dxfdata.cc | ||
| − | ==May 29th== | + | ===May 29th=== |
*Found another one existing integration with dxflib that I can use it as reference.[https://github.com/CauldronDevelopmentLLC/CAMotics/tree/master/src CAMotics] | *Found another one existing integration with dxflib that I can use it as reference.[https://github.com/CauldronDevelopmentLLC/CAMotics/tree/master/src CAMotics] | ||
*Continue on reading dxflib and import.cc, dxfdata.cc. | *Continue on reading dxflib and import.cc, dxfdata.cc. | ||
| Line 65: | Line 66: | ||
*Fill out the comparison [https://github.com/openscad/openscad/wiki/DXF-Library-overview wiki page] | *Fill out the comparison [https://github.com/openscad/openscad/wiki/DXF-Library-overview wiki page] | ||
| − | ==May 30th== | + | ===May 30th=== |
*Had to go the dentist this morning, will catch up the afternoon and at night. | *Had to go the dentist this morning, will catch up the afternoon and at night. | ||
*Keep browsing for more information for those four libraries. | *Keep browsing for more information for those four libraries. | ||
*Reading [https://images.autodesk.com/adsk/files/autocad_2012_pdf_dxf-reference_enu.pdf DXF standard] to learn how DXF format works | *Reading [https://images.autodesk.com/adsk/files/autocad_2012_pdf_dxf-reference_enu.pdf DXF standard] to learn how DXF format works | ||
| − | ==May 31th== | + | ===May 31th=== |
*Searching more information for potential libraries. | *Searching more information for potential libraries. | ||
**Add more information that found to the comparison page. | **Add more information that found to the comparison page. | ||
*Learning how to integrate the library from the [https://ribbonsoft.com/doc/dxflib/2.5/reference/contents.html instruction] written by QCAD. | *Learning how to integrate the library from the [https://ribbonsoft.com/doc/dxflib/2.5/reference/contents.html instruction] written by QCAD. | ||
| − | ==June 3rd== | + | ==June== |
| + | |||
| + | ===June 3rd=== | ||
*We stick with using BRL-CAD's code for now. | *We stick with using BRL-CAD's code for now. | ||
*Try to implement the circle entity. | *Try to implement the circle entity. | ||
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**Having some issue with ADDLINE. Will dig into that later. | **Having some issue with ADDLINE. Will dig into that later. | ||
| − | ==June 4th== | + | ===June 4th=== |
*Push few commits on [https://github.com/leonplust/openscad/tree/dxf-import import_dxf branch]. | *Push few commits on [https://github.com/leonplust/openscad/tree/dxf-import import_dxf branch]. | ||
**Basically create a new import_dxf() function that replace the old dxfdata.cc | **Basically create a new import_dxf() function that replace the old dxfdata.cc | ||
**Implement a simple geometry to test out the function | **Implement a simple geometry to test out the function | ||
| − | ==June 5th== | + | ===June 5th=== |
*Modify the code committed yesterday to output a simple circle. | *Modify the code committed yesterday to output a simple circle. | ||
*Trying to understand layer, block. | *Trying to understand layer, block. | ||
| − | ==June 6th== | + | ===June 6th=== |
*Created a new branch [https://github.com/leonplust/brlcadDXF/tree/prototype prototype] on brlcadDXF repo. | *Created a new branch [https://github.com/leonplust/brlcadDXF/tree/prototype prototype] on brlcadDXF repo. | ||
**Trying to clean up the code so that it could compile independently. | **Trying to clean up the code so that it could compile independently. | ||
| − | ==June 7th== | + | ===June 7th=== |
*Switch some functions and datatype and continue on cleaning up the code. | *Switch some functions and datatype and continue on cleaning up the code. | ||
*Spend most of my day studying the exam tonight. Will make up the time tomorrow. | *Spend most of my day studying the exam tonight. Will make up the time tomorrow. | ||
| − | ==June 8th== | + | ===June 8th=== |
*Walked through the whole file line by line and cleaned up as much as I can so far. There are still many details that I need to learn to clean up the rest. | *Walked through the whole file line by line and cleaned up as much as I can so far. There are still many details that I need to learn to clean up the rest. | ||
| − | ==June 10th== | + | ===June 10th=== |
*Made changes to dxf-g.c according to the answer from brlcad. | *Made changes to dxf-g.c according to the answer from brlcad. | ||
| − | ==June 11th== | + | ===June 11th=== |
*fix bu_list with std::list and related functions, etc. | *fix bu_list with std::list and related functions, etc. | ||
| − | ==June 12th== | + | ===June 12th=== |
*Add functions for circle eclipse from vmath.h, color.h. | *Add functions for circle eclipse from vmath.h, color.h. | ||
| − | ==June 13th== | + | ===June 13th=== |
*Added more functions from dependencies. | *Added more functions from dependencies. | ||
*uploaded a file that records to-do list, question, notes, etc. | *uploaded a file that records to-do list, question, notes, etc. | ||
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*Study for the midterm tonight for the most of the day will make up the hours tomorrow. | *Study for the midterm tonight for the most of the day will make up the hours tomorrow. | ||
| − | ==June 15th== | + | ===June 15th=== |
*Finished converting all bu_list data structure to std::list except in one function drawmtext(). | *Finished converting all bu_list data structure to std::list except in one function drawmtext(). | ||
**drawmtext() may be removed later. | **drawmtext() may be removed later. | ||
| − | ==June 17th== | + | ===June 17th=== |
*Finished fixing all bu_vert_tree structure. | *Finished fixing all bu_vert_tree structure. | ||
*Started on fixing vls a bit. | *Started on fixing vls a bit. | ||
| − | ==June 18th== | + | ===June 18th=== |
*Finished fixing all vls except those in the main(). | *Finished fixing all vls except those in the main(). | ||
| − | ==June 19th== | + | ===June 19th=== |
*Finished most of the parts of dxf-g.c. | *Finished most of the parts of dxf-g.c. | ||
** Create a new branch [https://github.com/leonplust/brlcadDXF/tree/test test] for testing and commented out some less necessary functions to test. | ** Create a new branch [https://github.com/leonplust/brlcadDXF/tree/test test] for testing and commented out some less necessary functions to test. | ||
| Line 132: | Line 135: | ||
** Need to fix the segmentation fault. | ** Need to fix the segmentation fault. | ||
| − | ==June 20th== | + | ===June 20th=== |
*Fixed numbers of segmentation faults mainly caused by malloc. | *Fixed numbers of segmentation faults mainly caused by malloc. | ||
| − | ==June 21st== | + | ===June 21st=== |
*Fix strncmp function error | *Fix strncmp function error | ||
*Tested with circle, ellipse, failed at block section. | *Tested with circle, ellipse, failed at block section. | ||
*Tried to reconstruct block_list, block_head data structure. | *Tried to reconstruct block_list, block_head data structure. | ||
| − | ==June 24th== | + | ===June 24th=== |
* Fix block_list data structure | * Fix block_list data structure | ||
* Now dxf-g.cc can go through the whole dxf file and spit out data to file output | * Now dxf-g.cc can go through the whole dxf file and spit out data to file output | ||
| Line 147: | Line 150: | ||
** coordinates of the vertices are correct. | ** coordinates of the vertices are correct. | ||
| − | ==June 25th== | + | ===June 25th=== |
* Randomly picking files from openscad/testdata/dxf to check geometry and coordinates. | * Randomly picking files from openscad/testdata/dxf to check geometry and coordinates. | ||
* Trying to figure out if the data structure is actually storing the correct data. | * Trying to figure out if the data structure is actually storing the correct data. | ||
Revision as of 11:10, 25 June 2019
Coummunity Bonding Period
- Set up the Development log
- Set up the development environment such as OS.
- Start to look at the different potential libraries code base.
- Discuss with mentors which external library to choose.
May 16th
- Start to check the checklist.
- Agreement sent.
- Dev log created.
- My Profile created.
May 17th
- Had four of my wisdom teeth extracted. The progress for the following week may be slow due to teeth extraction.
May 19th
- Looking at Coin3D/Dime code base, a possible library for DXF import/export.
- It has no external dependency.
- It supports all past and should support the future version of DXF format.
- It compiles on Windows, Linux, MacOS, etc.
- But it only loads DXF files into Dime object hierarchies and saves Dime object hierarchies as files conforming to DXF format.
- Seems only support 3D.
May 20th
- Looking at BRL-CAD DXF import/export code. Trying to understand how it works and see if it is suitable for OpenSCAD.
- It converts DXF format to .g and .g to DXF which is a BRL-CAD format.
- It seems that BRL-CAD does not support the entire format, only the part that is relative to solid-model.
May 21st
- Looking at dxflib which is used by QCAD and works fine, but it only supports 2D which is not ideal since OpenSCAD is already supporting 2D.
- Maybe we can add the 3D part. But not sure how hard it is to add that.
May 22nd
- Searching for a library that supports both 3D and 2D DXF import/export.
- Libraries above are for either 2D or 3D.
- Found some libraries support both but they are written in python instead of C++.
May 23rd
- Continue on searching for the potential library.
May 24th
- Looking at and Compile libdxfrw code base which is used by LibreCAD.
- Will be out of town for the next two days.
Coding Period
May
May 27th
- Looking at both libdxfrw(libdxfrw.h, dxfreader.cpp) and OpenSCAD(dxfdata.cc, dxfdim.cc, import.cc) relative code.
- Comparing the differences between these two on how they handle DXF data.
- Trying to form a connection between these two.
- dxfdata.cc seems a bit complicated. Need some time to digest.
- The way that libdxfrw reads DXF file is kind of mixing with DRW code.
- libdxfrw encounters problems when dealing with elevated arcs(no response yet).[1]
- Looking at dxflib code base as well.
- dxflib does not store any entities, only pass supported entities.
- A useful link for understanding dxflib data structure.[2]
May 28th
- Move on to reading dxflib code for now
- Continue reading the link about the data structure of dxflib above.
- Trying to understand form the connection between dxflib and OpenSCAD code base.
- Continue reading dxfdata.cc
May 29th
- Found another one existing integration with dxflib that I can use it as reference.CAMotics
- Continue on reading dxflib and import.cc, dxfdata.cc.
- Keep trying to write some code that may help understanding how to integrate the library.
- Fill out the comparison wiki page
May 30th
- Had to go the dentist this morning, will catch up the afternoon and at night.
- Keep browsing for more information for those four libraries.
- Reading DXF standard to learn how DXF format works
May 31th
- Searching more information for potential libraries.
- Add more information that found to the comparison page.
- Learning how to integrate the library from the instruction written by QCAD.
June
June 3rd
- We stick with using BRL-CAD's code for now.
- Try to implement the circle entity.
- Add a callback function on dxf-g.c to pass the data back to openSCAD.
- Add processentitiyecircle() to dxfdata.cc and some other changes to enable that function.
- Having some issue with ADDLINE. Will dig into that later.
June 4th
- Push few commits on import_dxf branch.
- Basically create a new import_dxf() function that replace the old dxfdata.cc
- Implement a simple geometry to test out the function
June 5th
- Modify the code committed yesterday to output a simple circle.
- Trying to understand layer, block.
June 6th
- Created a new branch prototype on brlcadDXF repo.
- Trying to clean up the code so that it could compile independently.
June 7th
- Switch some functions and datatype and continue on cleaning up the code.
- Spend most of my day studying the exam tonight. Will make up the time tomorrow.
June 8th
- Walked through the whole file line by line and cleaned up as much as I can so far. There are still many details that I need to learn to clean up the rest.
June 10th
- Made changes to dxf-g.c according to the answer from brlcad.
June 11th
- fix bu_list with std::list and related functions, etc.
June 12th
- Add functions for circle eclipse from vmath.h, color.h.
June 13th
- Added more functions from dependencies.
- uploaded a file that records to-do list, question, notes, etc.
June 14th
- few fixes on dxf-g.cc.
- Study for the midterm tonight for the most of the day will make up the hours tomorrow.
June 15th
- Finished converting all bu_list data structure to std::list except in one function drawmtext().
- drawmtext() may be removed later.
June 17th
- Finished fixing all bu_vert_tree structure.
- Started on fixing vls a bit.
June 18th
- Finished fixing all vls except those in the main().
June 19th
- Finished most of the parts of dxf-g.c.
- Create a new branch test for testing and commented out some less necessary functions to test.
- Upload test files from openSCAD testdata/dxf
- Need to fix the segmentation fault.
June 20th
- Fixed numbers of segmentation faults mainly caused by malloc.
June 21st
- Fix strncmp function error
- Tested with circle, ellipse, failed at block section.
- Tried to reconstruct block_list, block_head data structure.
June 24th
- Fix block_list data structure
- Now dxf-g.cc can go through the whole dxf file and spit out data to file output
- Done basic testing with circle, ellipse, polygons, lwpolyline. files from openscad testdata/dxf.
- Found the correct geometry.
- coordinates of the vertices are correct.
June 25th
- Randomly picking files from openscad/testdata/dxf to check geometry and coordinates.
- Trying to figure out if the data structure is actually storing the correct data.
