Cura/slice/cura_sf/fabmetheus_utilities/geometry/geometry_utilities/evaluate_fundamentals/measure.py

   1 """
   2 Boolean geometry utilities.
   3
   4 """
   5
   6 from __future__ import absolute_import
   7
   8 from fabmetheus_utilities import euclidean
   9
  10
  11 __author__ = 'Enrique Perez (perez_enrique@yahoo.com)'
  12 __credits__ = 'Art of Illusion <http://www.artofillusion.org/>'
  13 __date__ = '$Date: 2008/02/05 $'
  14 __license__ = 'GNU Affero General Public License http://www.gnu.org/licenses/agpl.html'
  15
  16
  17 def _getAccessibleAttribute(attributeName):
  18         'Get the accessible attribute.'
  19         if attributeName in globalAccessibleAttributeDictionary:
  20                 return globalAccessibleAttributeDictionary[attributeName]
  21         return None
  22
  23 def getBoundingBoxByPaths(elementNode):
  24         'Get bounding box of the transformed paths of the xmlObject of the elementNode.'
  25         transformedPaths = elementNode.xmlObject.getTransformedPaths()
  26         maximum = euclidean.getMaximumByVector3Paths(transformedPaths)
  27         minimum = euclidean.getMinimumByVector3Paths(transformedPaths)
  28         return [minimum, maximum]
  29
  30 def getCenterByPaths(elementNode):
  31         'Get center of the transformed paths of the xmlObject of the elementNode.'
  32         transformedPaths = elementNode.xmlObject.getTransformedPaths()
  33         return 0.5 * (euclidean.getMaximumByVector3Paths(transformedPaths) + euclidean.getMinimumByVector3Paths(transformedPaths))
  34
  35 def getExtentByPaths(elementNode):
  36         'Get extent of the transformed paths of the xmlObject of the elementNode.'
  37         transformedPaths = elementNode.xmlObject.getTransformedPaths()
  38         return euclidean.getMaximumByVector3Paths(transformedPaths) - euclidean.getMinimumByVector3Paths(transformedPaths)
  39
  40 def getInradiusByPaths(elementNode):
  41         'Get inradius of the transformed paths of the xmlObject of the elementNode.'
  42         return 0.5 * getExtentByPaths(elementNode)
  43
  44 def getMinimumByPaths(elementNode):
  45         'Get minimum of the transformed paths of the xmlObject of the elementNode.'
  46         return euclidean.getMinimumByVector3Paths(elementNode.xmlObject.getTransformedPaths())
  47
  48 def getMaximumByPaths(elementNode):
  49         'Get maximum of the transformed paths of the xmlObject of the elementNode.'
  50         return euclidean.getMaximumByVector3Paths(elementNode.xmlObject.getTransformedPaths())
  51
  52
  53 globalAccessibleAttributeDictionary = {
  54         'getBoundingBoxByPaths' : getBoundingBoxByPaths,
  55         'getCenterByPaths' : getCenterByPaths,
  56         'getExtentByPaths' : getExtentByPaths,
  57         'getInradiusByPaths' : getInradiusByPaths,
  58         'getMaximumByPaths' : getMaximumByPaths,
  59         'getMinimumByPaths' : getMinimumByPaths}