mirror of
https://git.mirrors.martin98.com/https://github.com/Ultimaker/Cura
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274 lines
9.9 KiB
Python
274 lines
9.9 KiB
Python
# Copyright (c) 2015 Ultimaker B.V.
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# Copyright (c) 2013 David Braam
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# Uranium is released under the terms of the AGPLv3 or higher.
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from UM.Mesh.MeshReader import MeshReader
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import os
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from UM.Scene.SceneNode import SceneNode
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from UM.Scene.Iterator.DepthFirstIterator import DepthFirstIterator
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from UM.Math.Vector import Vector
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from UM.Math.AxisAlignedBox import AxisAlignedBox
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from UM.Application import Application
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from UM.Message import Message
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from UM.Logger import Logger
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from UM.i18n import i18nCatalog
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catalog = i18nCatalog("cura")
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from cura import LayerDataBuilder
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from cura import LayerDataDecorator
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from cura import LayerPolygon
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import numpy
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import math
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class GCodeReader(MeshReader):
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def __init__(self):
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super(GCodeReader, self).__init__()
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self._supported_extensions = [".gcode", ".g"]
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Application.getInstance().hideMessageSignal.connect(self.onHideMessage)
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self.cancelled = False
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self.message = None
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def getInt(self, line, code):
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n = line.find(code) + 1
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if n < 1:
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return None
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m = line.find(' ', n)
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try:
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if m < 0:
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return int(line[n:])
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return int(line[n:m])
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except:
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return None
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def getFloat(self, line, code):
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n = line.find(code) + 1
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if n < 1:
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return None
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m = line.find(' ', n)
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try:
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if m < 0:
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return float(line[n:])
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return float(line[n:m])
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except:
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return None
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def onHideMessage(self, m):
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if m == self.message:
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self.cancelled = True
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def parent_changed(self, node):
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if node.getParent() is None:
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scene = Application.getInstance().getController().getScene()
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def findAny():
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for node1 in DepthFirstIterator(scene.getRoot()):
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if hasattr(node1, "gcode") and getattr(node1, "gcode") is True:
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return True
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return False
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backend = Application.getInstance().getBackend()
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if not findAny():
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backend._pauseSlicing = False
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Application.getInstance().setHideSettings(False)
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Application.getInstance().getPrintInformation().setPreSliced(False)
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else:
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backend._pauseSlicing = True
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backend.backendStateChange.emit(3)
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Application.getInstance().getPrintInformation().setPreSliced(True)
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Application.getInstance().setHideSettings(True)
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def read(self, file_name):
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scene_node = None
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extension = os.path.splitext(file_name)[1]
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if extension.lower() in self._supported_extensions:
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Logger.log("d", "Preparing to load %s" % file_name)
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self.cancelled = False
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Application.getInstance().deleteAll()
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scene_node = SceneNode()
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def getBoundingBox():
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return AxisAlignedBox(minimum=Vector(0, 0, 0), maximum=Vector(10, 10, 10))
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scene_node.getBoundingBox = getBoundingBox
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scene_node.gcode = True
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backend = Application.getInstance().getBackend()
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backend._pauseSlicing = True
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backend.close()
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backend.backendStateChange.emit(1)
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glist = getattr(Application.getInstance().getController().getScene(), "gcode_list")
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glist.clear()
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Logger.log("d", "Opening file %s" % file_name)
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file = open(file_name, "r")
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file_lines = 0
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current_line = 0
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for line in file:
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file_lines += 1
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file.seek(0)
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file_step = math.floor(file_lines / 100)
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file_step = 1 if file_step < 1 else file_step
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layer_data = LayerDataBuilder.LayerDataBuilder()
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current_extruder = 1
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current_path = []
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current_x = 0
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current_y = 0
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current_z = 0
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current_e = 0
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current_layer = 0
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self.message = Message(catalog.i18nc("@info:status", "Parsing GCODE"), lifetime=0)
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self.message.setProgress(0)
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self.message.show()
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Logger.log("d", "Parsing %s" % file_name)
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def CreatePolygon():
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countvalid = False
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for point in current_path:
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if point[3] > 0:
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countvalid += 1
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if countvalid < 2:
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current_path.clear()
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return False
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try:
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layer_data.addLayer(current_layer)
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layer_data.setLayerHeight(current_layer, current_path[0][1])
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layer_data.setLayerThickness(current_layer, 0.25)
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this_layer = layer_data.getLayer(current_layer)
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except ValueError:
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current_path.clear()
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return False
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count = len(current_path)
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line_types = numpy.empty((count-1, 1), numpy.int32)
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line_types[:, 0] = 1
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line_widths = numpy.empty((count-1, 1), numpy.int32)
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line_widths[:, 0] = 0.5
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points = numpy.empty((count, 3), numpy.float32)
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i = 0
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for point in current_path:
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points[i, 0] = point[0]
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points[i, 1] = point[1]
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points[i, 2] = point[2]
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if i > 0:
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line_types[i-1] = point[3]
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i += 1
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this_poly = LayerPolygon.LayerPolygon(layer_data, current_extruder, line_types, points, line_widths)
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this_poly.buildCache()
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this_layer.polygons.append(this_poly)
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current_path.clear()
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return True
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for line in file:
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if self.cancelled:
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Logger.log("w", "Parsing %s cancelled" % file_name)
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return None
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current_line += 1
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if current_line % file_step == 0:
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self.message.setProgress(math.floor(current_line/file_lines*100))
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if len(line) == 0:
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continue
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if line[0] == ";":
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continue
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G = self.getInt(line, "G")
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if G is not None:
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if G == 0 or G == 1:
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x = self.getFloat(line, "X")
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y = self.getFloat(line, "Y")
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z = self.getFloat(line, "Z")
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e = self.getFloat(line, "E")
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z_changed = False
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if x is not None:
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current_x = x
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if y is not None:
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current_y = y
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if z is not None:
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if not current_z == z:
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z_changed = True
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current_z = z
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if e is not None:
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if e > current_e:
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current_path.append([current_x, current_z, -current_y, 1]) # extrusion
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else:
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current_path.append([current_x, current_z, -current_y, 2]) # retraction
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current_e = e
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else:
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current_path.append([current_x, current_z, -current_y, 0])
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if z_changed:
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if len(current_path) > 1 and current_z > 0:
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if CreatePolygon():
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current_layer += 1
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else:
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current_path.clear()
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elif G == 28:
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x = self.getFloat(line, "X")
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y = self.getFloat(line, "Y")
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if x is not None:
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current_x = x
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if y is not None:
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current_y = y
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current_z = 0
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elif G == 92:
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x = self.getFloat(line, "X")
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y = self.getFloat(line, "Y")
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z = self.getFloat(line, "Z")
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if x is not None:
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current_x += x
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if y is not None:
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current_y += y
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if z is not None:
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current_z += z
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if len(current_path) > 1:
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if CreatePolygon():
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current_layer += 1
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layer_mesh = layer_data.build()
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decorator = LayerDataDecorator.LayerDataDecorator()
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decorator.setLayerData(layer_mesh)
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scene_node.addDecorator(decorator)
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Logger.log("d", "Finished parsing %s" % file_name)
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self.message.hide()
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if current_layer == 0:
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Logger.log("w", "File %s doesn't contain any valid layers" % file_name)
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Application.getInstance().getPrintInformation()._pre_sliced = True
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scene_node.parentChanged.connect(self.parent_changed)
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scene_node_parent = Application.getInstance().getBuildVolume()
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scene_node.setParent(scene_node_parent)
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settings = Application.getInstance().getGlobalContainerStack()
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machine_width = settings.getProperty("machine_width", "value")
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machine_depth = settings.getProperty("machine_depth", "value")
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scene_node.setPosition(Vector(-machine_width / 2, 0, machine_depth / 2))
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view = Application.getInstance().getController().getActiveView()
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if view.getPluginId() == "LayerView":
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view.resetLayerData()
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view.setLayer(999999)
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view.calculateMaxLayers()
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Logger.log("d", "Loaded %s" % file_name)
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return scene_node
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