def set_transformation(self, transformation, init=False): if not transformation.__class__ == self.Transformation: # create an object of the proper type and take only the attributes # of interest. if isinstance(transformation, Translation): t = transformation.t else: t = None if isinstance(transformation, Rotation): r = transformation.r else: r = None if self.Transformation == Translation: if t is None: transformation = Translation.identity() else: transformation = Translation(t) elif self.Transformation == Rotation: if r is None: transformation = Rotation.identity() else: transformation = Rotation(r) else: # self.Transformation == Complete: if r is None: r = numpy.identity(3, float) if t is None: t = numpy.zeros(3, float) transformation = Complete(r, t) self.transformation = transformation if not init: self.invalidate_transformation_list()
def do(self): cache = context.application.cache for node in cache.nodes: translated_children = [] for child in node.children: if isinstance(child, GLTransformationMixin) and isinstance( child.transformation, Translation): if child.get_fixed(): translated_children = [] break translated_children.append(child) if len(translated_children) == 0: continue mass, com = compute_center_of_mass(iter_particles(node)) if mass == 0.0: continue tensor = compute_inertia_tensor(iter_particles(node), com) transformation = Complete(align_rotation_matrix(tensor), com) CenterAlignBase.do(self, node, translated_children, transformation)
def update_gui(self): if self.status is not None: self.la_num_iter.set_text("%i" % self.status.step) self.la_rms_error.set_text( express_measure( numpy.sqrt(self.status.value / self.num_springs), "Length")) self.progress_bar.set_text("%i%%" % int(self.status.progress * 100)) self.progress_bar.set_fraction(self.status.progress) for state_index, frame, variable in zip( self.state_indices, self.involved_frames, self.minimize.root_expression.state_variables): if isinstance(variable, iterative.var.Frame): r, t = variable.extract_state(state_index, self.status.state) frame.set_transformation(Complete(r, t)) elif isinstance(variable, iterative.var.Translation): t = variable.extract_state(state_index, self.status.state) new_transformation = frame.transformation.copy_with(t=t) frame.set_transformation(new_transformation) context.application.main.drawing_area.queue_draw()
def endElement(self, name): if name == "zml_file": return # now that we have gatherd all information of this tag, create an appropriate object # first find the tags involved in this operation current_tag = self.hierarchy[-1][-1] child_tags = [] if not current_tag.being_processed: current_tag = self.hierarchy[-2][-1] child_tags = self.hierarchy[-1] # do it if name == "str": current_tag.value = str(current_tag.content) elif name == "float": current_tag.value = float(current_tag.content) elif name == "int": current_tag.value = int(current_tag.content) elif name == "bool": temp = current_tag.content.lower().strip() if temp == 'true': current_tag.value = True else: current_tag.value = False elif name == "list": current_tag.value = [tag.value for tag in child_tags] elif name == "dict": current_tag.value = dict((tag.label, tag.value) for tag in child_tags) elif name == "tuple": current_tag.value = tuple(tag.value for tag in child_tags) elif name == "shape": current_tag.value = tuple(int(item) for item in current_tag.content.split()) elif name == "cells": current_tag.value = numpy.array([eval(item) for item in current_tag.content.split()]) elif name == "array": child_dict = dict((tag.name, tag.value) for tag in child_tags) current_tag.value = numpy.reshape(child_dict["cells"], child_dict["shape"]) elif name == "grid": current_tag.value = numpy.reshape(numpy.array([eval(item) for item in current_tag.content.split()]), (int(current_tag.attributes["rows"]), int(current_tag.attributes["cols"]), -1)) elif name == "binary": current_tag.value = StringIO.StringIO() current_tag.content.seek(0) base64.decode(current_tag.content, current_tag.value) elif name == "translation": current_tag.value = Translation(child_tags[0].value) elif name == "rotation": current_tag.value = Rotation(child_tags[0].value) elif name == "transformation": child_dict = dict((tag.label, tag.value) for tag in child_tags) current_tag.value = Complete( child_dict["rotation_matrix"], child_dict["translation_vector"], ) elif name == "unit_cell": child_dict = dict((tag.label, tag.value) for tag in child_tags) current_tag.value = UnitCell( child_dict["matrix"], child_dict["active"], ) elif name == "expression": current_tag.value = Expression(current_tag.content) elif name == "reference": current_tag.value = None referent_tag = self.hierarchy[-3][-1] target_ids = self.target_ids.get(referent_tag) if target_ids is None: target_ids = [] self.target_ids[referent_tag] = target_ids target_ids.append(int(current_tag.attributes["to"])) elif name == "model_object": Class = context.application.plugins.get_node(str(current_tag.attributes["class"])) current_tag.state = dict((tag.label, tag.value) for tag in child_tags) current_tag.value = Class() self.model_object_tags[int(current_tag.attributes["id"])] = current_tag else: pass # close the door current_tag.content = None current_tag.close() if len(child_tags) > 0: self.hierarchy.pop()