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OpenSCAD 20xx.yy
================
Features:
o The MCAD library is now bundled with OpenSCAD
o Added import and export of the OFF file format
o New import() statement reads the correct file format based on the filename extension
(.stl, .dxf and .off is supported)
o The color() statement now supports an alpha parameter, e.g. color(c=[1,0,0], alpha=0.4)
o The color() statement now supports specifying colors as strings, e.g. color("Red")
o if() and else() can now take any value type as parameter. false, 0, empty string and empty vector or illegal value type will evaluate as false, everything else as true.
Bugfixes:
o square() crashed if any of the dimensions were zero
o Flush Caches didn't flush cached USE'd modules
o STL export should be a bit more robust
Deprecations:
o dxf_linear_extrude() and dxf_rotate_extrude() are now deprecated.
Use linear_extrude() and rotate_extrude() instead.
o The file, layer, origin and scale parameters to linear_extrude() and rotate_extrude()
are now deprecated. Use an import() child instead.
o import_dxf(), import_stl() and import_off() are now deprecated. Use import() instead.
OpenSCAD 2011.06
================
o Added "Export as Image" menu.
Bugfixes:
o Cylinder tesselation broke existing models which are using cylinders
for e.g. captured nut slots and are dependent on the orientation not
changing.
o DXF output couldn't be imported into e.g. AutoCAD and Solidworks after updating
to using the AutoCAD 2000 (AC1015) format. Reverted to the old entity-only output,
causing LWPOLYLINES to not exported allowed anymore.
OpenSCAD 2011.04
================
o Added hull() for convex hulls (2D object only)
o minkowski() now supports 2D objects
o Added functions: rands(), sign()
o Now supports escaping of the following characters in strings: \n, \t, \r, \\, \"
o Support nested includes
o Improved parsing of numbers
o DXF: output LWPOLYLINE instead of just LINE entities
o Bugfixes: More robust DXF export, setting $fs/$fa to 0 caused a crash
o Some bugs fixed, maybe some new bugs added
OpenSCAD 2010.05
================
o Added functions and statements
- Added abs() function
- Added exp(x), log(b, x), log(x) and ln(x) functions
- Added minkowski() statement for 3d minkowski sums
o Added 'include <filename>' and 'use <filename>' statements
- Old implicit '<filename>' include statement is now obsolete
o Some bugs fixed, maybe some new bugs added
OpenSCAD 2010.02
================
o Added functions and statements
- Added sqrt() function
- Added round(), ceil() and floor() functions
- Added lookup() function for linear interpolation in value list
- Added projection(cut = true/false) statement
- Added child() statement for accessing child nodes of module instances
- Added mirror() statement
o Improved DXF import code (more entities and some bugs fixed)
o Added feature for dumping animation as PNG files
o Added a preferences dialog
o Now using CGAL's delaunay tesselator
o Now using eigen2 for linear algebra
o Reorganisation of the source tree
o Some bugs fixed, maybe some new bugs added
OpenSCAD 2010.01
================
o Added functions and statements
- Added intersection_for()
- Added str function
- Added min and max function
- Added color() statement
o Added 2D Subsystem
- New primitives: circle(), square() and polygon()
- 2D->3D path: linear_extrude() and rotate_extrude()
- Import of DXF to 2d subsystem: import_dxf()
- Export of 2D data as DXF files
o Some bugs fixed, maybe some new bugs added
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