Cura/slice/cura_sf/fabmetheus_utilities/geometry/manipulation_shapes/_inset.py

   1 """
   2 Create inset.
   3
   4 """
   5
   6 from __future__ import absolute_import
   7
   8 from fabmetheus_utilities.geometry.creation import solid
   9 from fabmetheus_utilities.geometry.geometry_utilities.evaluate_elements import setting
  10 from fabmetheus_utilities.geometry.geometry_utilities import boolean_solid
  11 from fabmetheus_utilities.geometry.geometry_utilities import evaluate
  12 from fabmetheus_utilities.geometry.solids import triangle_mesh
  13 from fabmetheus_utilities.vector3index import Vector3Index
  14 from fabmetheus_utilities import euclidean
  15 from fabmetheus_utilities import intercircle
  16 import math
  17
  18
  19 __author__ = 'Enrique Perez (perez_enrique@yahoo.com)'
  20 __credits__ = 'Art of Illusion <http://www.artofillusion.org/>'
  21 __date__ = '$Date: 2008/02/05 $'
  22 __license__ = 'GNU Affero General Public License http://www.gnu.org/licenses/agpl.html'
  23
  24
  25 globalExecutionOrder = 80
  26
  27
  28 def getManipulatedGeometryOutput(elementNode, geometryOutput, prefix):
  29         'Get inset geometryOutput.'
  30         derivation = InsetDerivation(elementNode, prefix)
  31         if derivation.radius == 0.0:
  32                 return geometryOutput
  33         halfLayerHeight = 0.5 * derivation.radius
  34         importRadius = 0.5 * derivation.radius * setting.getImportCoarseness(elementNode)
  35         loopLayers = solid.getLoopLayersSetCopy(elementNode, geometryOutput, importRadius, derivation.radius)
  36         triangleAltitude = math.sqrt(0.75) * derivation.radius
  37         loops = []
  38         vertexes = []
  39         for loopLayerIndex in xrange(1, len(loopLayers), 2):
  40                 loopLayer = loopLayers[loopLayerIndex]
  41                 loopLayer.loops[0] = intercircle.getLargestInsetLoopFromLoop(loopLayer.loops[0], triangleAltitude)
  42         for loopLayerIndex in xrange(0, len(loopLayers), 2):
  43                 loopLayer = loopLayers[loopLayerIndex]
  44                 loopLists = [[solid.getLoopOrEmpty(loopLayerIndex - 2, loopLayers)]]
  45                 loopLists.append([solid.getLoopOrEmpty(loopLayerIndex - 1, loopLayers)])
  46                 loopLists.append([intercircle.getLargestInsetLoopFromLoop(loopLayer.loops[0], derivation.radius)])
  47                 if evaluate.getEvaluatedBoolean(True, elementNode, prefix + 'insetTop'):
  48                         loopLists.append([solid.getLoopOrEmpty(loopLayerIndex + 1, loopLayers)])
  49                         loopLists.append([solid.getLoopOrEmpty(loopLayerIndex + 2, loopLayers)])
  50                 largestLoop = euclidean.getLargestLoop(boolean_solid.getLoopsIntersection(importRadius, loopLists))
  51                 triangle_mesh.addVector3Loop(largestLoop, loops, vertexes, loopLayer.z)
  52         if evaluate.getEvaluatedBoolean(False, elementNode, prefix + 'addExtraTopLayer') and len(loops) > 0:
  53                 topLoop = loops[-1]
  54                 vector3Loop = []
  55                 loops.append(vector3Loop)
  56                 z = topLoop[0].z + derivation.radius
  57                 for point in topLoop:
  58                         vector3Index = Vector3Index(len(vertexes), point.x, point.y, z)
  59                         vector3Loop.append(vector3Index)
  60                         vertexes.append(vector3Index)
  61         return triangle_mesh.getMeldedPillarOutput(loops)
  62
  63 def getManipulatedPaths(close, elementNode, loop, prefix, sideLength):
  64         "Get inset path."
  65         derivation = InsetDerivation(elementNode, prefix)
  66         return intercircle.getInsetLoopsFromVector3Loop(loop, derivation.radius)
  67
  68 def getNewDerivation(elementNode, prefix, sideLength):
  69         'Get new derivation.'
  70         return OutsetDerivation(elementNode, prefix)
  71
  72 def processElementNode(elementNode):
  73         'Process the xml element.'
  74         solid.processElementNodeByFunctionPair(elementNode, getManipulatedGeometryOutput, getManipulatedPaths)
  75
  76
  77 class InsetDerivation(object):
  78         "Class to hold inset variables."
  79         def __init__(self, elementNode, prefix):
  80                 'Set defaults.'
  81                 self.radius = evaluate.getEvaluatedFloat(2.0 * setting.getEdgeWidth(elementNode), elementNode, prefix + 'radius')