#NEWLINE# def relative_svg_path_to_absolute_coord_list( path , bezier_steps = 100 , segment_length = 0.05 ) : #NEWLINE# #INDENT# '\n    return a list of absolute coordinates from an SVG *relative* path\n    ' #NEWLINE# look_for = svg_grammar ( ) #NEWLINE# pd = look_for . parseString ( path ) #NEWLINE# ap = Point ( ) #NEWLINE# po = Point ( ) #NEWLINE# points = [ ] #NEWLINE# p = [ ] #NEWLINE# last_bezier_control_point = Point ( ) #NEWLINE# for i in range ( 0 , len ( pd ) ) : #NEWLINE# #INDENT# cmd = pd [ i ] [ 0 ] #NEWLINE# if re . match ( 'm' , cmd ) : #NEWLINE# #INDENT# if ( i == 0 ) : #NEWLINE# #INDENT# coord = Point ( pd [ i ] [ 1 ] [ 0 ] , pd [ i ] [ 1 ] [ 1 ] ) #NEWLINE# ap . assign ( coord . x , coord . y ) #NEWLINE# p . append ( ap ) #NEWLINE# po . assign ( coord . x , coord . y ) #NEWLINE# #UNINDENT# else : #NEWLINE# #INDENT# coord_tmp = Point ( pd [ i ] [ 1 ] [ 0 ] , pd [ i ] [ 1 ] [ 1 ] ) #NEWLINE# ap += coord_tmp #NEWLINE# points . append ( p ) #NEWLINE# p = [ ] #NEWLINE# p . append ( ap ) #NEWLINE# po = ap #NEWLINE# #UNINDENT# for coord_tmp in pd [ i ] [ 2 : ] : #NEWLINE# #INDENT# coord = Point ( coord_tmp [ 0 ] , coord_tmp [ 1 ] ) #NEWLINE# ap += coord #NEWLINE# p . append ( ap ) #NEWLINE# #UNINDENT# #UNINDENT# else : #NEWLINE# #INDENT# if re . match ( 'c' , cmd ) : #NEWLINE# #INDENT# bezier_curve_path = [ ] #NEWLINE# for n in range ( 1 , ( len ( pd [ i ] ) - 1 ) , 3 ) : #NEWLINE# #INDENT# bezier_curve_path . append ( ap ) #NEWLINE# for m in range ( 0 , 3 ) : #NEWLINE# #INDENT# coord = pd [ i ] [ ( n + m ) ] #NEWLINE# point = Point ( coord [ 0 ] , coord [ 1 ] ) #NEWLINE# bezier_curve_path . append ( ( ap + point ) ) #NEWLINE# #UNINDENT# new_point = Point ( pd [ i ] [ ( n + m ) ] [ 0 ] , pd [ i ] [ ( n + m ) ] [ 1 ] ) #NEWLINE# ap += new_point #NEWLINE# #UNINDENT# for n in range ( 0 , len ( bezier_curve_path ) , 4 ) : #NEWLINE# #INDENT# bezier_points_x = [ ] #NEWLINE# bezier_points_y = [ ] #NEWLINE# for m in range ( 0 , 4 ) : #NEWLINE# #INDENT# bezier_points_x . append ( bezier_curve_path [ ( n + m ) ] . x ) #NEWLINE# bezier_points_y . append ( bezier_curve_path [ ( n + m ) ] . y ) #NEWLINE# #UNINDENT# points_x = calculate_points_of_cubic_bezier ( bezier_points_x , bezier_steps ) #NEWLINE# points_y = calculate_points_of_cubic_bezier ( bezier_points_y , bezier_steps ) #NEWLINE# path_length = calculate_cubic_bezier_length ( points_x , points_y ) #NEWLINE# if ( path_length == 0 ) : #NEWLINE# #INDENT# steps = 1 #NEWLINE# #UNINDENT# else : #NEWLINE# #INDENT# steps = ceil ( ( path_length / segment_length ) ) #NEWLINE# #UNINDENT# skip = int ( ceil ( ( bezier_steps / steps ) ) ) #NEWLINE# bezier_point_array = [ ] #NEWLINE# for n in range ( 0 , len ( points_x ) , skip ) : #NEWLINE# #INDENT# bezier_point_array . append ( Point ( point [ n ] , points_y [ n ] ) ) #NEWLINE# #UNINDENT# bezier_point_array . append ( Point ( points_x [ ( len ( points_x ) - 1 ) ] , points_y [ ( len ( points_x ) - 1 ) ] ) ) #NEWLINE# p += bezier_point_array #NEWLINE# #UNINDENT# #UNINDENT# else : #NEWLINE# #INDENT# if re . match ( 'q' , cmd ) : #NEWLINE# #INDENT# bezier_curve_path = [ ] #NEWLINE# for n in range ( 1 , ( len ( pd [ i ] ) - 1 ) , 2 ) : #NEWLINE# #INDENT# bezier_curve_path . append ( ap ) #NEWLINE# for m in range ( 0 , 2 ) : #NEWLINE# #INDENT# coord = pd [ i ] [ ( n + m ) ] #NEWLINE# point = Point ( coord [ 0 ] , coord [ 1 ] ) #NEWLINE# bezier_curve_path . append ( ( ap + point ) ) #NEWLINE# if ( m == 1 ) : #NEWLINE# #INDENT# bezier_curve_path . append ( ( ap + point ) ) #NEWLINE# #UNINDENT# if ( m == 0 ) : #NEWLINE# #INDENT# last_bezier_control_point = ( ap + point ) #NEWLINE# #UNINDENT# #UNINDENT# new_point = Point ( pd [ i ] [ ( n + m ) ] [ 0 ] , pd [ i ] [ ( n + m ) ] [ 1 ] ) #NEWLINE# ap += new_point #NEWLINE# #UNINDENT# for n in range ( 0 , len ( bezier_curve_path ) , 4 ) : #NEWLINE# #INDENT# bezier_points_x = [ ] #NEWLINE# bezier_points_y = [ ] #NEWLINE# for m in range ( 0 , 4 ) : #NEWLINE# #INDENT# bezier_points_x . append ( bezier_curve_path [ ( n + m ) ] . x ) #NEWLINE# bezier_points_y . append ( bezier_curve_path [ ( n + m ) ] . y ) #NEWLINE# #UNINDENT# points_x = calculate_points_of_cubic_bezier ( bezier_points_x , bezier_steps ) #NEWLINE# points_y = calculate_points_of_cubic_bezier ( bezier_points_y , bezier_steps ) #NEWLINE# path_length = calculate_cubic_bezier_length ( points_x , points_y ) #NEWLINE# skip = int ( ceil ( ( bezier_steps / ( path_length / segment_length ) ) ) ) #NEWLINE# bezier_point_array = [ ] #NEWLINE# for n in range ( 0 , len ( points_x ) , skip ) : #NEWLINE# #INDENT# bezier_point_array . append ( Point ( points_x [ n ] , points_y [ n ] ) ) #NEWLINE# #UNINDENT# bezier_point_array . append ( Point ( points_x [ ( len ( points_x ) - 1 ) ] , points_y [ ( len ( points_x ) - 1 ) ] ) ) #NEWLINE# p += bezier_point_array #NEWLINE# #UNINDENT# #UNINDENT# else : #NEWLINE# #INDENT# if re . match ( 't' , cmd ) : #NEWLINE# #INDENT# bezier_curve_path = [ ] #NEWLINE# for n in range ( 1 , len ( pd [ i ] ) ) : #NEWLINE# #INDENT# bezier_curve_path . append ( ap ) #NEWLINE# coord = pd [ i ] [ n ] #NEWLINE# point = Point ( coord [ 0 ] , coord [ 1 ] ) #NEWLINE# end_point = ( ap + point ) #NEWLINE# diff = Point ( ( ap . x - last_bezier_control_point . x ) , ( ap . y - last_bezier_control_point . y ) ) #NEWLINE# control_point = ( ap + diff ) #NEWLINE# bezier_curve_path . append ( control_point ) #NEWLINE# bezier_curve_path . append ( end_point ) #NEWLINE# bezier_curve_path . append ( end_point ) #NEWLINE# last_bezier_control_point = control_point #NEWLINE# new_point = Point ( pd [ i ] [ n ] [ 0 ] , pd [ i ] [ n ] [ 1 ] ) #NEWLINE# ap += new_point #NEWLINE# #UNINDENT# for n in range ( 0 , len ( bezier_curve_path ) , 4 ) : #NEWLINE# #INDENT# bezier_points_x = [ ] #NEWLINE# bezier_points_y = [ ] #NEWLINE# for m in range ( 0 , 4 ) : #NEWLINE# #INDENT# bezier_points_x . append ( bezier_curve_path [ ( n + m ) ] . x ) #NEWLINE# bezier_points_y . append ( bezier_curve_path [ ( n + m ) ] . y ) #NEWLINE# #UNINDENT# points_x = calculate_points_of_cubic_bezier ( bezier_points_x , bezier_steps ) #NEWLINE# points_y = calculate_points_of_cubic_bezier ( bezier_points_y , bezier_steps ) #NEWLINE# path_length = calculate_cubic_bezier_length ( points_x , points_y ) #NEWLINE# skip = int ( ceil ( ( bezier_steps / ( path_length / segment_length ) ) ) ) #NEWLINE# bezier_point_array = [ ] #NEWLINE# for m in range ( 0 , len ( points_x ) , skip ) : #NEWLINE# #INDENT# bezier_point_array . append ( Point ( points_x [ m ] , points_y [ m ] ) ) #NEWLINE# #UNINDENT# bezier_point_array . append ( Point ( points_x [ ( len ( points_x ) - 1 ) ] , points_y [ ( len ( points_x ) - 1 ) ] ) ) #NEWLINE# p += bezier_point_array #NEWLINE# #UNINDENT# #UNINDENT# else : #NEWLINE# #INDENT# if re . match ( 'l' , cmd ) : #NEWLINE# #INDENT# for coord_tmp in pd [ i ] [ 1 : ] : #NEWLINE# #INDENT# coord = Point ( coord_tmp [ 0 ] , coord_tmp [ 1 ] ) #NEWLINE# ap += coord #NEWLINE# p . append ( ap ) #NEWLINE# #UNINDENT# #UNINDENT# else : #NEWLINE# #INDENT# if re . match ( 'h' , cmd ) : #NEWLINE# #INDENT# for coord_tmp in pd [ i ] [ 1 : ] : #NEWLINE# #INDENT# coord = Point ( coord_tmp [ 0 ] , 0 ) #NEWLINE# ap += coord #NEWLINE# p . append ( ap ) #NEWLINE# #UNINDENT# #UNINDENT# else : #NEWLINE# #INDENT# if re . match ( 'v' , cmd ) : #NEWLINE# #INDENT# for coord_tmp in pd [ i ] [ 1 : ] : #NEWLINE# #INDENT# coord = Point ( 0 , coord_tmp [ 0 ] ) #NEWLINE# ap += coord #NEWLINE# p . append ( ap ) #NEWLINE# #UNINDENT# #UNINDENT# else : #NEWLINE# #INDENT# if re . match ( 'z' , cmd ) : #NEWLINE# #INDENT# ap = ( ap + ( po - ap ) ) #NEWLINE# #UNINDENT# else : #NEWLINE# #INDENT# print ( ( 'ERROR: found an unsupported SVG path command ' + str ( cmd ) ) ) #NEWLINE# #UNINDENT# #UNINDENT# #UNINDENT# #UNINDENT# #UNINDENT# #UNINDENT# #UNINDENT# #UNINDENT# #UNINDENT# points . append ( p ) #NEWLINE# return points