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fix: ifcclash bcfxml export

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This commit is contained in:
Andrea Ghensi
2023-01-14 15:49:23 +01:00
committed by Dion Moult
parent 4ee3458ff9
commit a4566797fe
13 changed files with 316 additions and 151 deletions
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src/ifcclash/ifcclash/ifcclash.py
+9 -60
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@@ -22,8 +22,6 @@
import numpy as np
import json
import sys
import argparse
import logging
import multiprocessing
import ifcopenshell
import ifcopenshell.geom
@@ -117,71 +115,22 @@ class Clasher:
self.export_json()
def export_bcfxml(self):
import bcf
import bcf.v2.bcfxml
from bcf.v2.bcfxml import BcfXml
for i, clash_set in enumerate(self.clash_sets):
bcfxml = bcf.v2.bcfxml.BcfXml()
bcfxml.new_project()
bcfxml.project.name = clash_set["name"]
bcfxml.edit_project()
for key, clash in clash_set["clashes"].items():
topic = bcf.v2.data.Topic()
topic.title = "{}/{} and {}/{}".format(
clash["a_ifc_class"], clash["a_name"], clash["b_ifc_class"], clash["b_name"]
bcfxml = BcfXml.create_new(clash_set["name"])
for clash in clash_set["clashes"].values():
title = f'{clash["a_ifc_class"]}/{clash["a_name"]} and {clash["b_ifc_class"]}/{clash["b_name"]}'
topic = bcfxml.add_topic(title, title, "IfcClash")
topic.add_viewpoint_from_point_and_guids(
np.array(clash["position"]), clash["a_global_id"], clash["b_global_id"],
)
topic = bcfxml.add_topic(topic)
viewpoint = bcf.v2.data.Viewpoint()
viewpoint.perspective_camera = bcf.v2.data.PerspectiveCamera()
position = np.array(clash["position"])
point = position + np.array((5, 5, 5)) # Dumb, but works (for now)!
viewpoint.perspective_camera.camera_view_point.x = point[0]
viewpoint.perspective_camera.camera_view_point.y = point[1]
viewpoint.perspective_camera.camera_view_point.z = point[2]
mat = self.get_track_to_matrix(point, position)
viewpoint.perspective_camera.camera_direction.x = mat[0][2] * -1
viewpoint.perspective_camera.camera_direction.y = mat[1][2] * -1
viewpoint.perspective_camera.camera_direction.z = mat[2][2] * -1
viewpoint.perspective_camera.camera_up_vector.x = mat[0][1]
viewpoint.perspective_camera.camera_up_vector.y = mat[1][1]
viewpoint.perspective_camera.camera_up_vector.z = mat[2][1]
viewpoint.components = bcf.v2.data.Components()
c1 = bcf.v2.data.Component()
c1.ifc_guid = clash["a_global_id"]
c2 = bcf.v2.data.Component()
c2.ifc_guid = clash["b_global_id"]
viewpoint.components.selection.append(c1)
viewpoint.components.selection.append(c2)
viewpoint.components.visibility = bcf.v2.data.ComponentVisibility()
viewpoint.components.visibility.default_visibility = True
viewpoint.snapshot = self.get_viewpoint_snapshot(viewpoint, mat)
bcfxml.add_viewpoint(topic, viewpoint)
if i == 0:
bcfxml.save_project(self.settings.output)
else:
bcfxml.save_project(self.settings.output + f".{i}")
suffix = f".{i}" if i else ""
bcfxml.save_project(f"{self.settings.output}{suffix}")
def get_viewpoint_snapshot(self, viewpoint, mat):
return None # Possible to overload this function in a GUI application if used as a library
# https://blender.stackexchange.com/questions/68834/recreate-to-track-quat-with-two-vectors-using-python/141706#141706
def get_track_to_matrix(self, camera_position, target_position):
camera_direction = camera_position - target_position
camera_direction = camera_direction / np.linalg.norm(camera_direction)
camera_right = np.cross(np.array([0.0, 0.0, 1.0]), camera_direction)
camera_right = camera_right / np.linalg.norm(camera_right)
camera_up = np.cross(camera_direction, camera_right)
camera_up = camera_up / np.linalg.norm(camera_up)
rotation_transform = np.zeros((4, 4))
rotation_transform[0, :3] = camera_right
rotation_transform[1, :3] = camera_up
rotation_transform[2, :3] = camera_direction
rotation_transform[-1, -1] = 1
translation_transform = np.eye(4)
translation_transform[:3, -1] = -camera_position
look_at_transform = np.matmul(rotation_transform, translation_transform)
return np.linalg.inv(look_at_transform)
def export_json(self):
clash_sets = self.clash_sets.copy()
for clash_set in clash_sets: