def plane_normal_from_3_points(point1, point2, point3):
for point in (point1, point2, point3):
if None in point:
return None # some coords are missing
import transform
x1, y1, z1 = point1
x2, y2, z2 = point2
x3, y3, z3 = point3
m0 = transform.matrix([[x1, y1, z1], [x2, y2, z2], [x3, y3, z3]])
m1 = transform.matrix([[1, y1, z1], [1, y2, z2], [1, y3, z3]])
m2 = transform.matrix([[x1, 1, z1], [x2, 1, z2], [x3, 1, z3]])
m3 = transform.matrix([[x1, y1, 1], [x2, y2, 1], [x3, y3, 1]])
#d0 = 1.0*m0.get_determinant()
d1 = 1.0 * m1.get_determinant()
d2 = 1.0 * m2.get_determinant()
d3 = 1.0 * m3.get_determinant()
a = d1 #/d0
b = d2 #/d0
c = d3 #/d0
return a, b, c
def plane_normal_from_3_points( point1, point2, point3):
for point in (point1,point2,point3):
if None in point:
return None # some coords are missing
import transform
x1,y1,z1 = point1
x2,y2,z2 = point2
x3,y3,z3 = point3
m0 = transform.matrix( [[x1,y1,z1],[x2,y2,z2],[x3,y3,z3]])
m1 = transform.matrix( [[1,y1,z1],[1,y2,z2],[1,y3,z3]])
m2 = transform.matrix( [[x1,1,z1],[x2,1,z2],[x3,1,z3]])
m3 = transform.matrix( [[x1,y1,1],[x2,y2,1],[x3,y3,1]])
#d0 = 1.0*m0.get_determinant()
d1 = 1.0*m1.get_determinant()
d2 = 1.0*m2.get_determinant()
d3 = 1.0*m3.get_determinant()
a = d1 #/d0
b = d2 #/d0
c = d3 #/d0
return a,b,c
def convert(svg_in, dxf_out, layer_to_style=None, debug_out=None):
if debug_out is not None:
debug = lambda *objects: print(*objects, file=debug_out)
else:
debug = _noop
with stdout_ignore():
svg = pysvg.parser.parse(svg_in)
dwg = ezdxf.new('AC1015')
create_layers(dwg, layer_to_style)
msp = dwg.modelspace()
transform_ = transform.matrix(1, 0, 0, -1, 0, 0)
context = ElementContext(transform_=transform_).element(svg)
_append_subelements(svg, msp, debug, context)
dwg.write(dxf_out)
def convert(svg_in, dxf_out, layer_to_style=None, debug_out=None):
if debug_out is not None:
debug = lambda *objects: print(*objects, file=debug_out)
else:
debug = _noop
with stdout_ignore():
svg = pysvg.parser.parse(svg_in)
dwg = ezdxf.new('AC1015')
create_layers(dwg, layer_to_style)
msp = dwg.modelspace()
transform_ = transform.matrix(1, 0, 0, -1, 0, 0)
context = ElementContext(transform_=transform_).element(svg)
_append_subelements(svg, msp, debug, context)
dwg.write(dxf_out)
