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BCF cameras now support global absolute coordinates with a Blender offset

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This commit is contained in:
Dion Moult
2021-08-08 11:57:47 +10:00
parent 0183cf3b31
commit 0d6cacdd73
1 changed files with 40 additions and 18 deletions
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src/blenderbim/blenderbim/bim/module/bcf/operator.py
+40 -18
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@@ -3,6 +3,9 @@ import bpy
import bcf
import bcf.bcfxml
import bcf.v2.data
import numpy as np
import ifcopenshell
import ifcopenshell.util.unit
from . import bcfstore
from blenderbim.bim.ifc import IfcStore
from math import radians, degrees, atan, tan, cos, sin
@@ -700,20 +703,8 @@ class ActivateBcfViewpoint(bpy.types.Operator):
area = next(area for area in context.screen.areas if area.type == "VIEW_3D")
area.spaces[0].region_3d.view_perspective = "CAMERA"
if viewpoint.orthogonal_camera:
camera = viewpoint.orthogonal_camera
obj.data.type = "ORTHO"
obj.data.ortho_scale = viewpoint.orthogonal_camera.view_to_world_scale
elif viewpoint.perspective_camera:
camera = viewpoint.perspective_camera
obj.data.type = "PERSP"
if cam_aspect >= 1:
obj.data.angle = radians(camera.field_of_view)
else:
# https://blender.stackexchange.com/questions/23431/how-to-set-camera-horizontal-and-vertical-fov
obj.data.angle = 2 * atan((0.5 * cam_height) / (0.5 * cam_width / tan(radians(camera.field_of_view) / 2)))
self.set_viewpoint_components(viewpoint)
if self.file:
self.set_viewpoint_components(viewpoint)
gp = bpy.data.grease_pencils.get("BCF")
if gp:
@@ -729,15 +720,46 @@ class ActivateBcfViewpoint(bpy.types.Operator):
if viewpoint.bitmaps:
self.create_bitmaps(bcfxml, viewpoint, topic)
self.setup_camera(viewpoint, obj, cam_aspect)
return {"FINISHED"}
def setup_camera(self, viewpoint, obj, cam_aspect):
if viewpoint.orthogonal_camera:
camera = viewpoint.orthogonal_camera
obj.data.type = "ORTHO"
obj.data.ortho_scale = viewpoint.orthogonal_camera.view_to_world_scale
elif viewpoint.perspective_camera:
camera = viewpoint.perspective_camera
obj.data.type = "PERSP"
if cam_aspect >= 1:
obj.data.angle = radians(camera.field_of_view)
else:
# https://blender.stackexchange.com/questions/23431/how-to-set-camera-horizontal-and-vertical-fov
obj.data.angle = 2 * atan((0.5 * cam_height) / (0.5 * cam_width / tan(radians(camera.field_of_view) / 2)))
z_axis = Vector((-camera.camera_direction.x, -camera.camera_direction.y, -camera.camera_direction.z)).normalized()
y_axis = Vector((camera.camera_up_vector.x, camera.camera_up_vector.y, camera.camera_up_vector.z)).normalized()
x_axis = y_axis.cross(z_axis).normalized()
rotation = Matrix((x_axis, y_axis, z_axis))
rotation.invert()
location = Vector((camera.camera_view_point.x, camera.camera_view_point.y, camera.camera_view_point.z))
obj.matrix_world = rotation.to_4x4()
obj.location = location
return {"FINISHED"}
matrix = np.matrix((
[x_axis[0], y_axis[0], z_axis[0], camera.camera_view_point.x],
[x_axis[1], y_axis[1], z_axis[1], camera.camera_view_point.y],
[x_axis[2], y_axis[2], z_axis[2], camera.camera_view_point.z],
[0, 0, 0, 1],
))
props = bpy.context.scene.BIMGeoreferenceProperties
if props.has_blender_offset:
unit_scale = ifcopenshell.util.unit.calculate_unit_scale(self.file)
matrix = ifcopenshell.util.geolocation.global2local(
matrix,
float(props.blender_eastings) * unit_scale,
float(props.blender_northings) * unit_scale,
float(props.blender_orthogonal_height) * unit_scale,
float(props.blender_x_axis_abscissa),
float(props.blender_x_axis_ordinate),
)
obj.matrix_world = Matrix(matrix.tolist())
def set_viewpoint_components(self, viewpoint):
if not viewpoint.components: