# Copyright (c) 2015 Ultimaker B.V. # Cura is released under the terms of the AGPLv3 or higher. from cura.Settings.ExtruderManager import ExtruderManager from UM.i18n import i18nCatalog from UM.Scene.Platform import Platform from UM.Scene.Iterator.BreadthFirstIterator import BreadthFirstIterator from UM.Scene.SceneNode import SceneNode from UM.Application import Application from UM.Resources import Resources from UM.Mesh.MeshBuilder import MeshBuilder from UM.Math.Vector import Vector from UM.Math.Color import Color from UM.Math.AxisAlignedBox import AxisAlignedBox from UM.Math.Polygon import Polygon from UM.Message import Message from UM.Signal import Signal from PyQt5.QtCore import QTimer from UM.View.RenderBatch import RenderBatch from UM.View.GL.OpenGL import OpenGL catalog = i18nCatalog("cura") import numpy import copy import UM.Settings.ContainerRegistry # Setting for clearance around the prime PRIME_CLEARANCE = 10 def approximatedCircleVertices(r): """ Return vertices from an approximated circle. :param r: radius :return: numpy 2-array with the vertices """ return numpy.array([ [-r, 0], [-r * 0.707, r * 0.707], [0, r], [r * 0.707, r * 0.707], [r, 0], [r * 0.707, -r * 0.707], [0, -r], [-r * 0.707, -r * 0.707] ], numpy.float32) ## Build volume is a special kind of node that is responsible for rendering the printable area & disallowed areas. class BuildVolume(SceneNode): VolumeOutlineColor = Color(12, 169, 227, 255) raftThicknessChanged = Signal() def __init__(self, parent = None): super().__init__(parent) self._width = 0 self._height = 0 self._depth = 0 self._shader = None self._grid_mesh = None self._grid_shader = None self._disallowed_areas = [] self._disallowed_area_mesh = None self._prime_tower_area = None self._prime_tower_area_mesh = None self.setCalculateBoundingBox(False) self._volume_aabb = None self._raft_thickness = 0.0 self._adhesion_type = None self._platform = Platform(self) self._global_container_stack = None Application.getInstance().globalContainerStackChanged.connect(self._onStackChanged) self._onStackChanged() self._has_errors = False Application.getInstance().getController().getScene().sceneChanged.connect(self._onSceneChanged) # Number of objects loaded at the moment. self._number_of_objects = 0 self._change_timer = QTimer() self._change_timer.setInterval(100) self._change_timer.setSingleShot(True) self._change_timer.timeout.connect(self._onChangeTimerFinished) self._build_volume_message = Message(catalog.i18nc("@info:status", "The build volume height has been reduced due to the value of the" " \"Print Sequence\" setting to prevent the gantry from colliding" " with printed models.")) # Must be after setting _build_volume_message, apparently that is used in getMachineManager. # activeQualityChanged is always emitted after setActiveVariant, setActiveMaterial and setActiveQuality. # Therefore this works. Application.getInstance().getMachineManager().activeQualityChanged.connect(self._onStackChanged) def _onSceneChanged(self, source): self._change_timer.start() def _onChangeTimerFinished(self): root = Application.getInstance().getController().getScene().getRoot() new_number_of_objects = len([node for node in BreadthFirstIterator(root) if node.getMeshData() and type(node) is SceneNode]) if new_number_of_objects != self._number_of_objects: recalculate = False if self._global_container_stack.getProperty("print_sequence", "value") == "one_at_a_time": recalculate = (new_number_of_objects < 2 and self._number_of_objects > 1) or (new_number_of_objects > 1 and self._number_of_objects < 2) self._number_of_objects = new_number_of_objects if recalculate: self._onSettingPropertyChanged("print_sequence", "value") # Create fake event, so right settings are triggered. def setWidth(self, width): if width: self._width = width def setHeight(self, height): if height: self._height = height def setDepth(self, depth): if depth: self._depth = depth def getDisallowedAreas(self): return self._disallowed_areas def setDisallowedAreas(self, areas): self._disallowed_areas = areas def render(self, renderer): if not self.getMeshData(): return True if not self._shader: self._shader = OpenGL.getInstance().createShaderProgram(Resources.getPath(Resources.Shaders, "default.shader")) self._grid_shader = OpenGL.getInstance().createShaderProgram(Resources.getPath(Resources.Shaders, "grid.shader")) renderer.queueNode(self, mode = RenderBatch.RenderMode.Lines) renderer.queueNode(self, mesh = self._grid_mesh, shader = self._grid_shader, backface_cull = True) if self._disallowed_area_mesh: renderer.queueNode(self, mesh = self._disallowed_area_mesh, shader = self._shader, transparent = True, backface_cull = True, sort = -9) if self._prime_tower_area_mesh: renderer.queueNode(self, mesh = self._prime_tower_area_mesh, shader = self._shader, transparent=True, backface_cull=True, sort=-8) return True ## Recalculates the build volume & disallowed areas. def rebuild(self): if not self._width or not self._height or not self._depth: return min_w = -self._width / 2 max_w = self._width / 2 min_h = 0.0 max_h = self._height min_d = -self._depth / 2 max_d = self._depth / 2 mb = MeshBuilder() # Outline 'cube' of the build volume mb.addLine(Vector(min_w, min_h, min_d), Vector(max_w, min_h, min_d), color = self.VolumeOutlineColor) mb.addLine(Vector(min_w, min_h, min_d), Vector(min_w, max_h, min_d), color = self.VolumeOutlineColor) mb.addLine(Vector(min_w, max_h, min_d), Vector(max_w, max_h, min_d), color = self.VolumeOutlineColor) mb.addLine(Vector(max_w, min_h, min_d), Vector(max_w, max_h, min_d), color = self.VolumeOutlineColor) mb.addLine(Vector(min_w, min_h, max_d), Vector(max_w, min_h, max_d), color = self.VolumeOutlineColor) mb.addLine(Vector(min_w, min_h, max_d), Vector(min_w, max_h, max_d), color = self.VolumeOutlineColor) mb.addLine(Vector(min_w, max_h, max_d), Vector(max_w, max_h, max_d), color = self.VolumeOutlineColor) mb.addLine(Vector(max_w, min_h, max_d), Vector(max_w, max_h, max_d), color = self.VolumeOutlineColor) mb.addLine(Vector(min_w, min_h, min_d), Vector(min_w, min_h, max_d), color = self.VolumeOutlineColor) mb.addLine(Vector(max_w, min_h, min_d), Vector(max_w, min_h, max_d), color = self.VolumeOutlineColor) mb.addLine(Vector(min_w, max_h, min_d), Vector(min_w, max_h, max_d), color = self.VolumeOutlineColor) mb.addLine(Vector(max_w, max_h, min_d), Vector(max_w, max_h, max_d), color = self.VolumeOutlineColor) self.setMeshData(mb.build()) mb = MeshBuilder() mb.addQuad( Vector(min_w, min_h - 0.2, min_d), Vector(max_w, min_h - 0.2, min_d), Vector(max_w, min_h - 0.2, max_d), Vector(min_w, min_h - 0.2, max_d) ) for n in range(0, 6): v = mb.getVertex(n) mb.setVertexUVCoordinates(n, v[0], v[2]) self._grid_mesh = mb.build() disallowed_area_height = 0.1 disallowed_area_size = 0 if self._disallowed_areas: mb = MeshBuilder() color = Color(0.0, 0.0, 0.0, 0.15) for polygon in self._disallowed_areas: points = polygon.getPoints() first = Vector(self._clamp(points[0][0], min_w, max_w), disallowed_area_height, self._clamp(points[0][1], min_d, max_d)) previous_point = Vector(self._clamp(points[0][0], min_w, max_w), disallowed_area_height, self._clamp(points[0][1], min_d, max_d)) for point in points: new_point = Vector(self._clamp(point[0], min_w, max_w), disallowed_area_height, self._clamp(point[1], min_d, max_d)) mb.addFace(first, previous_point, new_point, color = color) previous_point = new_point # Find the largest disallowed area to exclude it from the maximum scale bounds. # This is a very nasty hack. This pretty much only works for UM machines. # This disallowed area_size needs a -lot- of rework at some point in the future: TODO if numpy.min(points[:, 1]) >= 0: # This filters out all areas that have points to the left of the centre. This is done to filter the skirt area. size = abs(numpy.max(points[:, 1]) - numpy.min(points[:, 1])) else: size = 0 disallowed_area_size = max(size, disallowed_area_size) self._disallowed_area_mesh = mb.build() else: self._disallowed_area_mesh = None if self._prime_tower_area: mb = MeshBuilder() color = Color(1.0, 0.0, 0.0, 0.5) points = self._prime_tower_area.getPoints() first = Vector(self._clamp(points[0][0], min_w, max_w), disallowed_area_height, self._clamp(points[0][1], min_d, max_d)) previous_point = Vector(self._clamp(points[0][0], min_w, max_w), disallowed_area_height, self._clamp(points[0][1], min_d, max_d)) for point in points: new_point = Vector(self._clamp(point[0], min_w, max_w), disallowed_area_height, self._clamp(point[1], min_d, max_d)) mb.addFace(first, previous_point, new_point, color=color) previous_point = new_point self._prime_tower_area_mesh = mb.build() else: self._prime_tower_area_mesh = None self._volume_aabb = AxisAlignedBox( minimum = Vector(min_w, min_h - 1.0, min_d), maximum = Vector(max_w, max_h - self._raft_thickness, max_d)) bed_adhesion_size = self._getEdgeDisallowedSize() # As this works better for UM machines, we only add the disallowed_area_size for the z direction. # This is probably wrong in all other cases. TODO! # The +1 and -1 is added as there is always a bit of extra room required to work properly. scale_to_max_bounds = AxisAlignedBox( minimum = Vector(min_w + bed_adhesion_size + 1, min_h, min_d + disallowed_area_size - bed_adhesion_size + 1), maximum = Vector(max_w - bed_adhesion_size - 1, max_h - self._raft_thickness, max_d - disallowed_area_size + bed_adhesion_size - 1) ) Application.getInstance().getController().getScene()._maximum_bounds = scale_to_max_bounds def getBoundingBox(self): return self._volume_aabb def getRaftThickness(self): return self._raft_thickness def _updateRaftThickness(self): old_raft_thickness = self._raft_thickness self._adhesion_type = self._global_container_stack.getProperty("adhesion_type", "value") self._raft_thickness = 0.0 if self._adhesion_type == "raft": self._raft_thickness = ( self._global_container_stack.getProperty("raft_base_thickness", "value") + self._global_container_stack.getProperty("raft_interface_thickness", "value") + self._global_container_stack.getProperty("raft_surface_layers", "value") * self._global_container_stack.getProperty("raft_surface_thickness", "value") + self._global_container_stack.getProperty("raft_airgap", "value")) # Rounding errors do not matter, we check if raft_thickness has changed at all if old_raft_thickness != self._raft_thickness: self.setPosition(Vector(0, -self._raft_thickness, 0), SceneNode.TransformSpace.World) self.raftThicknessChanged.emit() ## Update the build volume visualization def _onStackChanged(self): if self._global_container_stack: self._global_container_stack.propertyChanged.disconnect(self._onSettingPropertyChanged) extruders = ExtruderManager.getInstance().getMachineExtruders(self._global_container_stack.getId()) for extruder in extruders: extruder.propertyChanged.disconnect(self._onSettingPropertyChanged) self._global_container_stack = Application.getInstance().getGlobalContainerStack() if self._global_container_stack: self._global_container_stack.propertyChanged.connect(self._onSettingPropertyChanged) extruders = ExtruderManager.getInstance().getMachineExtruders(self._global_container_stack.getId()) for extruder in extruders: extruder.propertyChanged.connect(self._onSettingPropertyChanged) self._width = self._global_container_stack.getProperty("machine_width", "value") machine_height = self._global_container_stack.getProperty("machine_height", "value") if self._global_container_stack.getProperty("print_sequence", "value") == "one_at_a_time" and self._number_of_objects > 1: self._height = min(self._global_container_stack.getProperty("gantry_height", "value"), machine_height) if self._height < machine_height: self._build_volume_message.show() else: self._build_volume_message.hide() else: self._height = self._global_container_stack.getProperty("machine_height", "value") self._build_volume_message.hide() self._depth = self._global_container_stack.getProperty("machine_depth", "value") self._updateDisallowedAreas() self._updateRaftThickness() self.rebuild() def _onSettingPropertyChanged(self, setting_key, property_name): if property_name != "value": return rebuild_me = False if setting_key == "print_sequence": machine_height = self._global_container_stack.getProperty("machine_height", "value") if Application.getInstance().getGlobalContainerStack().getProperty("print_sequence", "value") == "one_at_a_time" and self._number_of_objects > 1: self._height = min(self._global_container_stack.getProperty("gantry_height", "value"), machine_height) if self._height < machine_height: self._build_volume_message.show() else: self._build_volume_message.hide() else: self._height = self._global_container_stack.getProperty("machine_height", "value") self._build_volume_message.hide() rebuild_me = True if setting_key in self._skirt_settings or setting_key in self._prime_settings or setting_key in self._tower_settings or setting_key == "print_sequence" or setting_key in self._ooze_shield_settings or setting_key in self._distance_settings: self._updateDisallowedAreas() rebuild_me = True if setting_key in self._raft_settings: self._updateRaftThickness() rebuild_me = True if rebuild_me: self.rebuild() def hasErrors(self): return self._has_errors def _updateDisallowedAreas(self): if not self._global_container_stack: return self._has_errors = False # Reset. disallowed_areas = copy.deepcopy( self._global_container_stack.getProperty("machine_disallowed_areas", "value")) areas = [] machine_width = self._global_container_stack.getProperty("machine_width", "value") machine_depth = self._global_container_stack.getProperty("machine_depth", "value") self._prime_tower_area = None # Add prime tower location as disallowed area. # if self._global_container_stack.getProperty("prime_tower_enable", "value") == True: if ExtruderManager.getInstance().getResolveOrValue("prime_tower_enable") == True: prime_tower_size = self._global_container_stack.getProperty("prime_tower_size", "value") prime_tower_x = self._global_container_stack.getProperty("prime_tower_position_x", "value") - machine_width / 2 prime_tower_y = - self._global_container_stack.getProperty("prime_tower_position_y", "value") + machine_depth / 2 self._prime_tower_area = Polygon([ [prime_tower_x - prime_tower_size, prime_tower_y - prime_tower_size], [prime_tower_x, prime_tower_y - prime_tower_size], [prime_tower_x, prime_tower_y], [prime_tower_x - prime_tower_size, prime_tower_y], ]) # Add extruder prime locations as disallowed areas. # Probably needs some rework after coordinate system change. extruder_manager = ExtruderManager.getInstance() extruders = extruder_manager.getMachineExtruders(self._global_container_stack.getId()) for single_extruder in extruders: extruder_prime_pos_x = single_extruder.getProperty("extruder_prime_pos_x", "value") extruder_prime_pos_y = single_extruder.getProperty("extruder_prime_pos_y", "value") # TODO: calculate everything in CuraEngine/Firmware/lower left as origin coordinates. # Here we transform the extruder prime pos (lower left as origin) to Cura coordinates # (center as origin, y from back to front) prime_x = extruder_prime_pos_x - machine_width / 2 prime_y = machine_depth / 2 - extruder_prime_pos_y disallowed_areas.append([ [prime_x - PRIME_CLEARANCE, prime_y - PRIME_CLEARANCE], [prime_x + PRIME_CLEARANCE, prime_y - PRIME_CLEARANCE], [prime_x + PRIME_CLEARANCE, prime_y + PRIME_CLEARANCE], [prime_x - PRIME_CLEARANCE, prime_y + PRIME_CLEARANCE], ]) disallowed_border_size = self._getEdgeDisallowedSize() if disallowed_areas: # Extend every area already in the disallowed_areas with the skirt size. for area in disallowed_areas: poly = Polygon(numpy.array(area, numpy.float32)) poly = poly.getMinkowskiHull(Polygon(approximatedCircleVertices(disallowed_border_size))) areas.append(poly) # Add the skirt areas around the borders of the build plate. if disallowed_border_size > 0: half_machine_width = self._global_container_stack.getProperty("machine_width", "value") / 2 half_machine_depth = self._global_container_stack.getProperty("machine_depth", "value") / 2 areas.append(Polygon(numpy.array([ [-half_machine_width, -half_machine_depth], [-half_machine_width, half_machine_depth], [-half_machine_width + disallowed_border_size, half_machine_depth - disallowed_border_size], [-half_machine_width + disallowed_border_size, -half_machine_depth + disallowed_border_size] ], numpy.float32))) areas.append(Polygon(numpy.array([ [half_machine_width, half_machine_depth], [half_machine_width, -half_machine_depth], [half_machine_width - disallowed_border_size, -half_machine_depth + disallowed_border_size], [half_machine_width - disallowed_border_size, half_machine_depth - disallowed_border_size] ], numpy.float32))) areas.append(Polygon(numpy.array([ [-half_machine_width, half_machine_depth], [half_machine_width, half_machine_depth], [half_machine_width - disallowed_border_size, half_machine_depth - disallowed_border_size], [-half_machine_width + disallowed_border_size, half_machine_depth - disallowed_border_size] ], numpy.float32))) areas.append(Polygon(numpy.array([ [half_machine_width, -half_machine_depth], [-half_machine_width, -half_machine_depth], [-half_machine_width + disallowed_border_size, -half_machine_depth + disallowed_border_size], [half_machine_width - disallowed_border_size, -half_machine_depth + disallowed_border_size] ], numpy.float32))) # Check if the prime tower area intersects with any of the other areas. # If this is the case, keep the polygon seperate, so it can be drawn in red. # If not, add it back to disallowed area's, so it's rendered as normal. collision = False if self._prime_tower_area: for area in areas: # Using Minkowski of 0 fixes the prime tower area so it's rendered correctly self._prime_tower_area = self._prime_tower_area.getMinkowskiHull(Polygon(approximatedCircleVertices(0))) if self._prime_tower_area.intersectsPolygon(area) is not None: collision = True break if not collision: areas.append(self._prime_tower_area) self._prime_tower_area = None self._has_errors = collision self._disallowed_areas = areas ## Private convenience function to get a setting from the adhesion extruder. def _getSettingProperty(self, setting_key, property = "value"): multi_extrusion = self._global_container_stack.getProperty("machine_extruder_count", "value") > 1 if not multi_extrusion: return self._global_container_stack.getProperty(setting_key, property) extruder_index = self._global_container_stack.getProperty("adhesion_extruder_nr", "value") if extruder_index == "-1": # If extruder index is -1 use global instead return self._global_container_stack.getProperty(setting_key, property) extruder_stack_id = ExtruderManager.getInstance().extruderIds[str(extruder_index)] stack = UM.Settings.ContainerRegistry.getInstance().findContainerStacks(id = extruder_stack_id)[0] return stack.getProperty(setting_key, property) ## Convenience function to calculate the disallowed radius around the edge. # # This disallowed radius is to allow for space around the models that is # not part of the collision radius, such as bed adhesion (skirt/brim/raft) # and travel avoid distance. def _getEdgeDisallowedSize(self): if not self._global_container_stack: return 0 container_stack = self._global_container_stack # If we are printing one at a time, we need to add the bed adhesion size to the disallowed areas of the objects if container_stack.getProperty("print_sequence", "value") == "one_at_a_time": return 0.1 # Return a very small value, so we do draw disallowed area's near the edges. adhesion_type = container_stack.getProperty("adhesion_type", "value") if adhesion_type == "skirt": skirt_distance = self._getSettingProperty("skirt_gap", "value") skirt_line_count = self._getSettingProperty("skirt_line_count", "value") bed_adhesion_size = skirt_distance + (skirt_line_count * self._getSettingProperty("skirt_brim_line_width", "value")) if self._global_container_stack.getProperty("machine_extruder_count", "value") > 1: adhesion_extruder_nr = int(self._global_container_stack.getProperty("adhesion_extruder_nr", "value")) extruder_values = ExtruderManager.getInstance().getAllExtruderValues("skirt_brim_line_width") del extruder_values[adhesion_extruder_nr] # Remove the value of the adhesion extruder nr. for value in extruder_values: bed_adhesion_size += value elif adhesion_type == "brim": bed_adhesion_size = self._getSettingProperty("brim_line_count", "value") * self._getSettingProperty("skirt_brim_line_width", "value") if self._global_container_stack.getProperty("machine_extruder_count", "value") > 1: adhesion_extruder_nr = int(self._global_container_stack.getProperty("adhesion_extruder_nr", "value")) extruder_values = ExtruderManager.getInstance().getAllExtruderValues("skirt_brim_line_width") del extruder_values[adhesion_extruder_nr] # Remove the value of the adhesion extruder nr. for value in extruder_values: bed_adhesion_size += value elif adhesion_type == "raft": bed_adhesion_size = self._getSettingProperty("raft_margin", "value") else: raise Exception("Unknown bed adhesion type. Did you forget to update the build volume calculations for your new bed adhesion type?") wall_expansion_radius = 0 #Outer wall is moved? if self._getSettingProperty("xy_offset", "value"): wall_expansion_radius += self._getSettingProperty("xy_offset", "value") farthest_shield_distance = 0 if container_stack.getProperty("draft_shield_enabled", "value"): farthest_shield_distance = max(farthest_shield_distance, container_stack.getProperty("draft_shield_dist", "value")) if container_stack.getProperty("ooze_shield_enabled", "value"): farthest_shield_distance = max(farthest_shield_distance, container_stack.getProperty("ooze_shield_dist", "value")) move_from_wall_radius = 0 #Moves that start from outer wall. if self._getSettingProperty("infill_wipe_dist", "value"): move_from_wall_radius = max(move_from_wall_radius, self._getSettingProperty("infill_wipe_dist", "value")) if self._getSettingProperty("travel_avoid_distance", "value"): move_from_wall_radius = max(move_from_wall_radius, self._getSettingProperty("travel_avoid_distance", "value")) #Now combine our different pieces of data to get the final border size. # - Wall expansion is applied to the outer wall itself, so add it to the rest. # - Farthest shield, moves from the wall and bed adhesion are all radiusses around the outer wall, so take the max of them. border_size = wall_expansion_radius + max(farthest_shield_distance, move_from_wall_radius, bed_adhesion_size) return border_size def _clamp(self, value, min_value, max_value): return max(min(value, max_value), min_value) _skirt_settings = ["adhesion_type", "skirt_gap", "skirt_line_count", "skirt_brim_line_width", "brim_width", "brim_line_count", "raft_margin", "draft_shield_enabled", "draft_shield_dist", "xy_offset"] _raft_settings = ["adhesion_type", "raft_base_thickness", "raft_interface_thickness", "raft_surface_layers", "raft_surface_thickness", "raft_airgap"] _prime_settings = ["extruder_prime_pos_x", "extruder_prime_pos_y", "extruder_prime_pos_z"] _tower_settings = ["prime_tower_enable", "prime_tower_size", "prime_tower_position_x", "prime_tower_position_y"] _ooze_shield_settings = ["ooze_shield_enabled", "ooze_shield_dist"] _distance_settings = ["infill_wipe_dist", "travel_avoid_distance"]