openscad compatibility release

New features

• New AngelCAD script arguments allow for customization
• DXF import via File->Import 2d DXF...
  • Much improved DXF spline support
  • Generates AngelCAD script function from DXF
• Mesh repair via File->Repair Mesh file(s)...
  • More user friendly way of running polyfix
  • Location of polyfix defined in Tools->Settings->External Files...
  • improved face flip feature sometimes not working
• Edit/run OpenSCAD .scad scripts from AngelCAD editor
  • OpensCAD must be installed (used for script parsing to .csg)
  • AngelCADs boolean engine is used, so this is much faster than native OpenSCAD
  • The .csg file is automatically pre-processed, replacing import(file="*.stl") with polyhedron
  • Mesh precision controlled via script parameter -sec_tol='dist' (secant tolerance)
  • Not supported in .scad scripts: DXF import, surface, resize
• Capture and display stderr messages from external applications
  • xcsg and OpenSCAD
• Editor now detects external editing of script files
  • Asks if script file to be reloaded as required
• All open editor tabs are now remembered and re-opened in next session
• "Save & Close all buth this" right-click on editor tab
• Changed shortcut for Find/Replace from F3 to Ctrl+F
• Post-build export option
  • Tools->Settings->Output File Formats...
  • Enables copying generated 2d/3d files to a standard directory
• Fixed several smaller issues
• 64bit Windows and Ubuntu builds provided
  • runs under Windows 7, Windows 10, Ubuntu 18.04 and 20.04
• To install, run
  • Windows: AngelCAD_setup_v1.5-00.exe
  • Ubuntu: $sudo ./angelcad_setup.sh (extract zip file first)