Cura/fabmetheus_utilities/geometry/manipulation_shapes/_outset.py

   1 """
   2 Create inset.
   3
   4 """
   5
   6 from __future__ import absolute_import
   7 #Init has to be imported first because it has code to workaround the python bug where relative imports don't work if the module is imported as a main module.
   8 import __init__
   9
  10 from fabmetheus_utilities.geometry.creation import lineation
  11 from fabmetheus_utilities.geometry.creation import solid
  12 from fabmetheus_utilities.geometry.geometry_utilities.evaluate_elements import setting
  13 from fabmetheus_utilities.geometry.geometry_utilities import boolean_solid
  14 from fabmetheus_utilities.geometry.geometry_utilities import evaluate
  15 from fabmetheus_utilities.geometry.geometry_utilities import matrix
  16 from fabmetheus_utilities.geometry.solids import triangle_mesh
  17 from fabmetheus_utilities.vector3index import Vector3Index
  18 from fabmetheus_utilities import euclidean
  19 from fabmetheus_utilities import intercircle
  20 import math
  21
  22
  23 __author__ = 'Enrique Perez (perez_enrique@yahoo.com)'
  24 __credits__ = 'Art of Illusion <http://www.artofillusion.org/>'
  25 __date__ = '$Date: 2008/02/05 $'
  26 __license__ = 'GNU Affero General Public License http://www.gnu.org/licenses/agpl.html'
  27
  28
  29 globalExecutionOrder = 80
  30
  31
  32 def getManipulatedGeometryOutput(elementNode, geometryOutput, prefix):
  33         'Get outset geometryOutput.'
  34         derivation = OutsetDerivation(elementNode, prefix)
  35         if derivation.radius == 0.0:
  36                 return geometryOutput
  37         halfLayerHeight = 0.5 * derivation.radius
  38         importRadius = 0.5 * derivation.radius * setting.getImportCoarseness(elementNode)
  39         loopLayers = solid.getLoopLayersSetCopy(elementNode, geometryOutput, importRadius, derivation.radius)
  40         if len(loopLayers) == 0:
  41                 return triangle_mesh.getMeldedPillarOutput([])
  42         triangleAltitude = math.sqrt(0.75) * derivation.radius
  43         loops = []
  44         vertexes = []
  45         for loopLayerIndex in xrange(1, len(loopLayers), 2):
  46                 loopLayer = loopLayers[loopLayerIndex]
  47                 loopLayer.loops[0] = intercircle.getLargestInsetLoopFromLoop(loopLayer.loops[0], triangleAltitude)
  48         z = loopLayers[0].z - derivation.radius
  49         for loopIndex in xrange(-2, len(loopLayers) + 2, 2):
  50                 loopLists = [[solid.getLoopOrEmpty(loopIndex - 2, loopLayers)]]
  51                 loopLists.append([solid.getLoopOrEmpty(loopIndex - 1, loopLayers)])
  52                 loopLists.append([intercircle.getLargestInsetLoopFromLoop(solid.getLoopOrEmpty(loopIndex, loopLayers), -derivation.radius)])
  53                 loopLists.append([solid.getLoopOrEmpty(loopIndex + 1, loopLayers)])
  54                 loopLists.append([solid.getLoopOrEmpty(loopIndex + 2, loopLayers)])
  55                 largestLoop = euclidean.getLargestLoop(boolean_solid.getLoopsUnion(importRadius, loopLists))
  56                 triangle_mesh.addVector3Loop(largestLoop, loops, vertexes, z)
  57                 z += derivation.radius
  58         return triangle_mesh.getMeldedPillarOutput(loops)
  59
  60 def getManipulatedPaths(close, elementNode, loop, prefix, sideLength):
  61         "Get outset path."
  62         derivation = OutsetDerivation(elementNode, prefix)
  63         return intercircle.getInsetLoopsFromVector3Loop(loop, -derivation.radius)
  64
  65 def getNewDerivation(elementNode, prefix, sideLength):
  66         'Get new derivation.'
  67         return OutsetDerivation(elementNode, prefix)
  68
  69 def processElementNode(elementNode):
  70         'Process the xml element.'
  71         solid.processElementNodeByFunctionPair(elementNode, getManipulatedGeometryOutput, getManipulatedPaths)
  72
  73
  74 class OutsetDerivation:
  75         "Class to hold outset variables."
  76         def __init__(self, elementNode, prefix):
  77                 'Set defaults.'
  78                 self.radius = evaluate.getEvaluatedFloat(2.0 * setting.getEdgeWidth(elementNode), elementNode, prefix + 'radius')