def replace(self, gl_object): if not gl_object.get_fixed(): state = gl_object.__getstate__() state.pop("name", None) state.pop("transformation", None) new = self.get_new(gl_object.transformation.t) if(self.current_object == "Fragment"): #fragments are inserted at frames - have no refs target_object = new.children[1] else: target_object = new for reference in gl_object.references[::-1]: if not reference.check_target(target_object): return parent = gl_object.parent import copy primitive.Add(new, parent) if(self.current_object == "Fragment"): # rotation Bond = context.application.plugins.get_node("Bond") if len(gl_object.references) == 1 and isinstance(gl_object.references[0].parent, Bond): bond1 = gl_object.references[0].parent direction1 = bond1.shortest_vector_relative_to(parent) if bond1.children[0].target != gl_object: direction1 *= -1 bond2 = new.children[0].references[0].parent direction2 = bond2.shortest_vector_relative_to(parent) if bond2.children[0].target != target_object: direction2 *= -1 axis = numpy.cross(direction2, direction1) if numpy.linalg.norm(axis) < 1e-8: axis = random_orthonormal(direction1) angle = compute_angle(direction1, direction2) rotation = Rotation() rotation.set_rotation_properties(angle,axis,False) primitive.Transform(new, rotation) else: bond1 = None # tranlsation translation = Translation() pos_old = new.children[1].get_frame_relative_to(parent).t pos_new = gl_object.transformation.t translation.t = pos_new - pos_old primitive.Transform(new, translation) if bond1 != None: # bond length old_length = numpy.linalg.norm(direction1) new_length = bonds.get_length(new.children[1].number, bond1.get_neighbor(gl_object).number) translation = Translation() translation.t = -direction1/old_length*(new_length-old_length) primitive.Transform(new, translation) for reference in gl_object.references[::-1]: reference.set_target(target_object) primitive.Delete(gl_object) if(self.current_object == "Fragment"): primitive.Delete(new.children[0]) # get rid of frame UnframeAbsolute = context.application.plugins.get_action("UnframeAbsolute") UnframeAbsolute([new])
def default_parameters(cls): rotation2 = Rotation() rotation2.set_rotation_properties(0.0, [1, 0, 0], False) result = Parameters() result.connect_description1 = (Expression("True"), Expression("node.get_radius()")) result.repulse_description1 = (Expression("True"), Expression("node.get_radius()")) result.connect_description2 = (Expression("True"), Expression("node.get_radius()")) result.repulse_description2 = (Expression("True"), Expression("node.get_radius()")) result.action_radius = 7*angstrom result.distance_tolerance = 0.1*angstrom result.hit_tolerance = 0.1*angstrom result.allow_inversions = True result.minimum_triangle_size = 0.1*angstrom result.rotation_tolerance = 0.05 result.rotation2 = Undefined(rotation2) return result
def do_rotation(self, rotation_angle, rotation_axis): rotation_axis = numpy.dot(self.eye_rotation, rotation_axis) if self.rotation_axis is not None: if numpy.dot(self.rotation_axis, rotation_axis) > 0: rotation_axis = self.rotation_axis else: rotation_axis = -self.rotation_axis rotation = Rotation() rotation.set_rotation_properties(rotation_angle, rotation_axis, False) transformation = self.victim.transformation if isinstance(self.victim.transformation, Translation): transformation.t -= self.rotation_center transformation.t = numpy.dot(numpy.transpose(rotation.r), transformation.t) transformation.t += self.rotation_center if isinstance(self.victim.transformation, Rotation): transformation.r = numpy.dot(numpy.transpose(rotation.r), transformation.r) self.victim.revalidate_transformation_list() context.application.main.drawing_area.queue_draw() #self.victim.invalidate_transformation_list() self.changed = True
def add_hydrogens(atom): existing_bonds = list(atom.yield_bonds()) num_bonds = len(existing_bonds) bond_length = bonds.get_length(atom.number, 1, BOND_SINGLE) if num_bonds == 0: H = Atom(name="auto H", number=1) H.transformation.t = atom.transformation.t + numpy.array([0,bond_length,0]) primitive.Add(H, atom.parent) bond = Bond(name="aut H bond", targets=[atom, H]) primitive.Add(bond, atom.parent) existing_bonds.append(bond) num_bonds = 1 used_valence = 0 oposite_direction = numpy.zeros(3, float) for bond in existing_bonds: shortest_vector = bond.shortest_vector_relative_to(atom.parent) if bond.children[1].target == atom: shortest_vector *= -1 oposite_direction -= shortest_vector if bond.bond_type == BOND_SINGLE: used_valence += 1 elif bond.bond_type == BOND_DOUBLE: used_valence += 2 elif bond.bond_type == BOND_TRIPLE: used_valence += 3 oposite_direction /= numpy.linalg.norm(oposite_direction) num_hydrogens = valence_el(atom.number) - 2*lone_pairs(atom.number) - used_valence if num_hydrogens <= 0: return hybride_count = num_hydrogens + lone_pairs(atom.number) + num_bonds - (used_valence - num_bonds) num_sites = num_hydrogens + lone_pairs(atom.number) rotation = Rotation() rotation.set_rotation_properties(2*math.pi / float(num_sites), oposite_direction, False) opening_key = (hybride_count, num_sites) opening_angle = self.opening_angles.get(opening_key) if opening_angle is None: return if num_bonds == 1: first_bond = existing_bonds[0] other_atom = first_bond.children[0].target if other_atom == atom: other_atom = first_bond.children[1].target other_bonds = [bond for bond in other_atom.yield_bonds() if bond != first_bond] if len(other_bonds) > 0: normal = other_bonds[0].shortest_vector_relative_to(atom.parent) normal -= numpy.dot(normal, oposite_direction) * oposite_direction normal /= numpy.linalg.norm(normal) if other_bonds[0].children[0].target == other_atom: normal *= -1 else: normal = random_orthonormal(oposite_direction) elif num_bonds == 2: normal = numpy.cross(oposite_direction, existing_bonds[0].shortest_vector_relative_to(atom.parent)) normal /= numpy.linalg.norm(normal) elif num_bonds == 3: normal = random_orthonormal(oposite_direction) else: return h_pos = bond_length*(oposite_direction*math.cos(opening_angle) + normal*math.sin(opening_angle)) for i in range(num_hydrogens): H = Atom(name="auto H", number=1) H.transformation.t = atom.transformation.t + h_pos primitive.Add(H, atom.parent) bond = Bond(name="aut H bond", targets=[atom, H]) primitive.Add(bond, atom.parent) h_pos = rotation.vector_apply(h_pos)
def do_rotation(self, drawing_area, rotation_angle, rotation_axis): camera = context.application.camera rotation = Rotation() rotation.set_rotation_properties(rotation_angle, rotation_axis, False) camera.rotation.apply_before(rotation) drawing_area.queue_draw()