voxcity.simulator_gpu.domain.Surfaces
=====================================

.. py:class:: voxcity.simulator_gpu.domain.Surfaces(max_surfaces: int)

   Collection of surface elements for radiation calculations.

   Each surface has:
   - Position (grid indices i, j, k)
   - Direction (normal direction index)
   - Area
   - Albedo (reflectivity)


   .. py:attribute:: max_surfaces


   .. py:attribute:: n_surfaces


   .. py:attribute:: position


   .. py:attribute:: direction


   .. py:attribute:: center


   .. py:attribute:: normal


   .. py:attribute:: area


   .. py:attribute:: albedo


   .. py:attribute:: sw_in_direct


   .. py:attribute:: sw_in_diffuse


   .. py:attribute:: sw_out


   .. py:attribute:: svf


   .. py:attribute:: svf_urban


   .. py:attribute:: shadow


   .. py:attribute:: shadow_factor


   .. py:attribute:: canopy_transmissivity


   .. py:method:: add_surface(i: taichi.i32, j: taichi.i32, k: taichi.i32, direction: taichi.i32, center: voxcity.simulator_gpu.solar.core.Point3, normal: voxcity.simulator_gpu.solar.core.Vector3, area: taichi.f32, albedo: taichi.f32 = 0.2) -> taichi.i32

      Add a surface and return its index.



   .. py:property:: count
      :type: int


      Get current number of surfaces.


   .. py:method:: get_count() -> int

      Get current number of surfaces (alias for count property).



   .. py:method:: reset_fluxes()

      Reset all radiation fluxes to zero.