electrosim.rendering.primitives#

Functions

draw_glow_at_screen_pos(screen, center_px, ...)

Draw a blurred radial glow using concentric alpha circles.

draw_meter_grid(screen, world_size_m, ...)

Draw a metric grid in meters over the entire world size.

screen_vector_to_world(pos_pixels, ...)

Convert integer screen pixels to world meters as a float array.

world_vector_to_screen(pos_meters, ...)

Convert world coordinates (m) to integer screen pixels.
world_vector_to_screen(pos_meters, pixels_per_meter)[source]#

Convert world coordinates (m) to integer screen pixels.

Parameters:

  • pos_meters (numpy.ndarray shape (2,)) – World position in meters.

  • pixels_per_meter (float) – Pixels per meter scale.

Returns:

tuple[int, int] – Pixel coordinates.

Return type:

Tuple[int, int]

screen_vector_to_world(pos_pixels, pixels_per_meter)[source]#

Convert integer screen pixels to world meters as a float array.

Parameters:

  • pos_pixels (tuple[int, int]) – Pixel coordinates.

  • pixels_per_meter (float) – Pixels per meter scale.

Returns:

numpy.ndarray shape (2,) – World position in meters.

Return type:

ndarray

draw_meter_grid(screen, world_size_m, pixels_per_meter)[source]#

Draw a metric grid in meters over the entire world size.

Major lines and colors are controlled via config constants.

Parameters:

  • screen (Surface)

  • world_size_m (ndarray)

  • pixels_per_meter (float)

Return type:

None

draw_glow_at_screen_pos(screen, center_px, base_radius_px, color_rgb, intensity)[source]#

Draw a blurred radial glow using concentric alpha circles.

Parameters:

  • screen (pygame.Surface) – Target surface.

  • center_px (tuple[int, int]) – Center pixel.

  • base_radius_px (int) – Base radius for the core circle.

  • color_rgb (tuple[int,int,int]) – Glow color.

  • intensity (float) – [0,1] normalized intensity, typically |q|/MAX_CHARGE_C.

Return type:

None