[Code]Transformation_Extensions 20110209

[Code]Transformation_Extensions 20110209

Postby TIG » Sun Oct 11, 2009 1:59 pm

### transformation.extensions.rb (c) TIG 2009-2011
### From original ideas by TBD and others ? ### TIG 20091010
### The euler rotation ideas from Dave Burdick 20100324
### It extends the methods for Geom::Transformation...
### The built-in method "object.transformation.origin" return a point3d
### that is the object's origin/insertion: the new method
### object.transformation.getX etc returns the X location of the
### object [or Y or Z].
### The setX(x) resets the X value of the object [or Y or Z]: it
### returns a new transformation that can then be used to reset the
### original transformation; thus:
### object.transformation=object.transformation.setX(another_object.transformation.getX)
### - here it makes the object's X = another_object's X ;
### it also could be given a float, e.g. 12.345 or a 'variable'...
### The object.transformation.scaleX etc returns the scale on that axis.
### The object.transformation.rotX etc returns the rotation on that axis
### in radians: use ... .rotX.radians to get it in degrees...
### It uses different names to TBD's, e.g. 'rotZ' instead of 'zrot' etc.
### Note the capitalization... this is because some 'compiled scripts'
### use 'rotz' already etc - [and they return the rotation in degrees!]
### object.transformation.rotXYZ
### returns a 3 item array giving the rotations in x/y/z
### object.transformation.rot_a
### returns an 11 item array of the transformation's rotation/scaling
### - it can be used to extract some data more easily or as below...
### object.transformation=object.transformation.rotation_from_rot_a(another_object.transformation.rot_a)
### this applies another_object's 'rot_a' to change the object.
### object.transformation=object.transformation.rotation_from(another_object.transformation)
### this applies another_object's rotation/scaling to the object.
### it returns a new transformation that can then be used to reset the original...
### object.transformation=object.transformation.origin_from(another_object.transformation)
### this applies another_object's origin/location to the object.
### it returns a new transformation that can then be used to reset the original...
### object.transformation=object.transformation.rotation_from_xyz([xrot,yrot,zrot])
### this applies a 3 item array of x/y/z rotations about the model's x/y/z-axes,
### this could also be the array returned by rotXYZ.
### it returns a new transformation that can then be used to reset the original...
### object.transformation=object.transformation.rotation_from_xyz_locally([xrot,yrot,zrot])
### this applies a 3 item array of x/y/z rotations about the objects's x/y/z-axes,
### this could also be the array returned by rotXYZ.
### it returns a new transformation that can then be used to reset the original...
###
### updated 20110209 TIG
###
transformation_extensions.rb
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Re: [Code]Transformation_Extensions

Postby tomasz » Sun Oct 11, 2009 7:32 pm

Thanks TIG. They may be handy one day :)
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Re: [Code]Transformation_Extensions 20110209

Postby TIG » Wed Feb 09, 2011 12:30 pm

I've updated this code as it was well out of date and new versions drifting around on the forums has typos etc - this is the definitive version [as of today at least :roll: ]
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