[LDPE] 1.8.91 Released (rectifier defaults / heatmap / CSG_ELLIPSOID2)

[Nils Schmidt]

Hey,

this took some time to finish, but now its ready.



As always, you can download LDPE from this page:

http://nilsschmidt1337.github.io/ldparteditor/

Changelog:

(8 new features and 2 bug fixes)

With this release you will be able to...

• ...benefit from the fact that Rectifier "does not convert bordered rhombuses into rect primitives" by default.
  
• ...customise if Rectifier "does convert bordered rhombuses into rect primitives" by default.
  
• ...choose if Rectifier creates rect primitives with a shear or non-trivial rotation matrix.
  
• ...see a warning if the file is BFC CW certified instead of CCW.
  
• ...see a hint for "freezing the selection" when adding new objects ( I also implemented this for the next LDPatternCreator version ).
  
• ...use the old sphere mesh for CSG operations, too (CSG_ELLIPSOID2).
  
• ...use a "Concave/Convex Heatmap" mode which visualises convexity between surfaces (type 3 and 4, double-click on heatmap button).
  
• ...see the !PREVIEW meta with syntax highlighting.
  

The following critical issues are fixed:

1. The selection filter logic was not consistent.
   
2. [OpenGL 3.3] LDPE didn't switch to "special condline mode" when the user tried to add a condline.
   

The program was tested intensively with "real world" files.
However, something can go wrong in about 140.000 lines of code.

Installation on Windows:

1. Download and extract LDPartEditor_win32_x64.zip
   
2. Run LDPartEditor-1.8.91.msi
   
3. Start LDPartEditor from the start menu
   

Installation on Linux:

1. Download and extract LDPartEditor_linux_x64.zip
   
2. Install ldparteditor_1.8.91-1_amd64.deb
   
3. Start LDPartEditor from the menu or via launcher
   

Installation on Mac OS X:

1. Download and extract LDPartEditor_mac_x64.zip
   
2. Mount LDPartEditor-1.8.91.dmg
   
3. Drag LDPartEditor.app to the Applications folder
   
4. Copy ldparteditor.sh to your home folder
       4a. Open a Terminal.app and run ./ldparteditor.sh
       4b. Or open a Terminal.app and run /Applications/LDPartEditor.app/Contents/MacOS/LDPartEditor
   

I listen carefully to your requests and possible complaints. Please leave me a message, with your thoughts and wishes to further improve the software.

LDPE is a 3D CAD application: The overall system requirements are higher. While I recommend to use a powerful 64-bit multicore system, it could be possible, to run LDPE on older machines as well.

System Requirements:

Minimum System Requirements:

• OpenGL 2.1 compatible Graphics Card
  
• Operating System (64-bit): Windows [7 or newer], Linux [e.g. Ubuntu Linux >=14.4], Mac OS X [>=10.6]
  
• CPU: Multicore-Processor e.g. Intel Core 2 Duo or AMD Athlon II (>2.0Ghz)
  
• RAM: 4GB
  
• Video-Memory: 1 GB
  
• Free Disk Space: 150 MB
  

Recommended Requirements:

• Operating System (64bit): Windows 7,8,10,11, Linux [e.g. Ubuntu Linux >=14.4], Mac OS X [>=10.6]
  
• OpenGL 3.3 compatible Graphics Card
  
• CPU: Multicore-Processor with 4 cores (or more)
  
• RAM: >4 GB
  
• Video-Memory: >1 GB
  
• Free Disk Space: 500 MB
  
• For a faster start, LDPartEditor and the LDraw™ library should be installed on an SSD.
  

[Philippe Hurbain]

Thanks Nils !

[Willy Tschager]

All my wishes came true. Love it!

w.

[Philippe Hurbain]

I hoped that the convexity heatmap would help to locate areas where the  mesh would appear smoother if pairs of triangles were flipped, but I see no clear hint  

Crumpled:

  heattest1.png (Size: 51.46 KB / Downloads: 32)

Smoother:

  heattest2.png (Size: 47.46 KB / Downloads: 32)

[Gerald Lasser]

Thanks for the old CSG mesh :-)

one question: I never came across the issue that Willy mentioned with Rectifiers, when did this occure or which settings were used

[Philippe Hurbain]

Thanks for the old CSG mesh :-)

one question: I never came across the issue that Willy mentioned with Rectifiers, when did this occure or which settings were used

I think that the problem existing in some meshes come from the command line version of rectifier (which has probably more lenient thresholds), sometimes used as a post-processor in Datheader. So far I never noticed problems caused by LDPE version of Rectifier.