Cura/slice/cura_sf/fabmetheus_utilities/geometry/creation/concatenate.py

   1 """
   2 Boolean geometry concatenation.
   3
   4 """
   5
   6 from __future__ import absolute_import
   7
   8 from fabmetheus_utilities.geometry.creation import lineation
   9 from fabmetheus_utilities.geometry.geometry_tools import path
  10 from fabmetheus_utilities.geometry.geometry_utilities import evaluate
  11 from fabmetheus_utilities import euclidean
  12
  13
  14 __author__ = 'Enrique Perez (perez_enrique@yahoo.com)'
  15 __credits__ = 'Art of Illusion <http://www.artofillusion.org/>'
  16 __date__ = '$Date: 2008/02/05 $'
  17 __license__ = 'GNU Affero General Public License http://www.gnu.org/licenses/agpl.html'
  18
  19
  20 def getGeometryOutput(derivation, elementNode):
  21         'Get triangle mesh from attribute dictionary.'
  22         if derivation == None:
  23                 derivation = ConcatenateDerivation(elementNode)
  24         concatenatedList = euclidean.getConcatenatedList(derivation.target)[:]
  25         if len(concatenatedList) == 0:
  26                 print('Warning, in concatenate there are no paths.')
  27                 print(elementNode.attributes)
  28                 return None
  29         if 'closed' not in elementNode.attributes:
  30                 elementNode.attributes['closed'] = 'true'
  31         return lineation.getGeometryOutputByLoop(elementNode, lineation.SideLoop(concatenatedList))
  32
  33 def getGeometryOutputByArguments(arguments, elementNode):
  34         'Get triangle mesh from attribute dictionary by arguments.'
  35         return getGeometryOutput(None, elementNode)
  36
  37 def getNewDerivation(elementNode):
  38         'Get new derivation.'
  39         return ConcatenateDerivation(elementNode)
  40
  41 def processElementNode(elementNode):
  42         'Process the xml element.'
  43         path.convertElementNode(elementNode, getGeometryOutput(None, elementNode))
  44
  45
  46 class ConcatenateDerivation(object):
  47         'Class to hold concatenate variables.'
  48         def __init__(self, elementNode):
  49                 'Initialize.'
  50                 self.target = evaluate.getTransformedPathsByKey([], elementNode, 'target')