Rendering in ContinuousSpace

[awtishtikh]

Hello, I am trying to simulate passenger flow through a space, but I am having trouble rendering the model because, I believe, ContinuousSpace lacks the get_cell_list_contents attribute, which is required for rendering. Could someone please assist me?

[EwoutH]

Hi, thanks for reaching out!

@rht I think you are most up to speed with our visualisation, could you help this user out?

[rht]

@awtishtikh you might want to check out the visualization of Boid Flocker (which uses continuous space) at https://github.com/projectmesa/mesa-examples/blob/main/examples/boid_flockers/app.py, and the code implementation of how it is done at

mesa/mesa/experimental/components/matplotlib.py

Lines 76 to 115 in 51b4e9a

	def _draw_continuous_space(space, space_ax, agent_portrayal):
	def portray(space):
	x = []
	y = []
	s = [] # size
	c = [] # color
	for agent in space._agent_to_index:
	data = agent_portrayal(agent)
	_x, _y = agent.pos
	x.append(_x)
	y.append(_y)
	if "size" in data:
	s.append(data["size"])
	if "color" in data:
	c.append(data["color"])
	out = {"x": x, "y": y}
	if len(s) > 0:
	out["s"] = s
	if len(c) > 0:
	out["c"] = c
	return out
	# Determine border style based on space.torus
	border_style = "solid" if not space.torus else (0, (5, 10))
	# Set the border of the plot
	for spine in space_ax.spines.values():
	spine.set_linewidth(1.5)
	spine.set_color("black")
	spine.set_linestyle(border_style)
	width = space.x_max - space.x_min
	x_padding = width / 20
	height = space.y_max - space.y_min
	y_padding = height / 20
	space_ax.set_xlim(space.x_min - x_padding, space.x_max + x_padding)
	space_ax.set_ylim(space.y_min - y_padding, space.y_max + y_padding)
	# Portray and scatter the agents in the space
	space_ax.scatter(**portray(space))

. It's only a few lines of code.

[rht]

This is an example of how to create your own custom space drawer: https://github.com/projectmesa/mesa-examples/blob/cd09aba92b1f63a98fa4400c00d93d3fc1dd5c19/examples/sugarscape_g1mt/app.py#L9-L45