+import math
+import mathutils
+
+class CameraExporter:
+ def export_to_file(self, context, out_fn):
+ obj = context.active_object
+
+ resource = self.export_camera(obj)
+
+ with open(out_fn, "w") as out_file:
+ for s in resource.statements:
+ s.write_to_file(out_file)
+
+ def export_camera(self, obj):
+ if obj.type!='CAMERA':
+ raise Exception("Object is not a camera")
+
+ from .datafile import Resource, Statement
+ resource = Resource(obj.name+".camera")
+
+ position = obj.matrix_world*mathutils.Vector((0, 0, 0))
+ resource.statements.append(Statement("position", position[0], position[1], position[2]))
+ look_dir = obj.matrix_world*mathutils.Vector((0, 0, -1, 0))
+ resource.statements.append(Statement("look_direction", look_dir[0], look_dir[1], look_dir[2]))
+ resource.statements.append(Statement("up_direction", 0.0, 0.0, 1.0))
+ resource.statements.append(Statement("field_of_view", obj.data.angle_y*180/math.pi))
+ resource.statements.append(Statement("depth_clip", obj.data.clip_start, obj.data.clip_end))
+
+ return resource