Why is PNG always referred to distance 802 m?

[nemecsek69]

Linux 19.04, Python 3.7.3, OSMnx 0.10, JupyterLab 1.0.4

I requested info on Stackoverflow but got no answer.

I would like to save SVG and PNG based on the same graph. PNG should keep a different road size according to the type (that's why I am using plot_figure_ground), but the roads position and scale should be the same as in the SVG.
According to distance, SVG resizes correctly, while PNG is always 1 square mile. If distance is 1/2 mile, roads are slide to the left and cropped.

Am I doing something wrong here? Is it possible to resize PNG as it is for SVG?

import osmnx as ox
import os
from IPython.display import Image

%matplotlib inline
ox.config(log_file=False, log_console=False, use_cache=True)

PLACE = "aPlace"
NETWORK_TYPE = "drive"  

location_point = (50.6233696,12.3007474)
width = 2000;
filename = f"{PLACE}_{width}m_{NETWORK_TYPE}"

# if the graphml file already exists, don't load it again
if os.path.exists(f'data/{filename}.graphml'):
    G  = ox.load_graphml(filename=f'{filename}.graphml')
    GP = ox.load_graphml(filename=f'{filename}_projected.graphml')
    print("found saved graphhml")
else:
    print("graphml not found... loading new data")
    G = ox.graph_from_point(
        location_point, 
        distance=width / 2, # <=========================
        distance_type='bbox', 
        network_type=NETWORK_TYPE, 
        clean_periphery=False, 
        # infrastructure='way["highway"~"motorway"]'
    )
    GP = ox.project_graph(G)
    ox.save_graphml(G, filename=f'{filename}.graphml')
    ox.save_graphml(GP, filename=f'{filename}_projected.graphml')
    print("saved")
    
print(f"\nsaved {filename}.svg")
fig, ax = ox.plot_graph(GP, show=True, save=True, filename=filename, file_format='svg', node_size=0, edge_linewidth=0.3, edge_color="#000000")

print(f"\nsaved {filename}.png")
street_widths = {'footway' : 0.5, 'steps' : 0.5, 'pedestrian' : 0.5, 'path' : 0.5, 
                 'track' : 0.5, 'service' : 2, 'residential' : 3, 'primary' : 5, 'motorway' : 6}

fig, ax = ox.plot_figure_ground(G, street_widths=street_widths, show=True, smooth_joints=True, bgcolor="b", edge_color="w", dpi=10, 
                               filename=filename, file_format="png")

[gboeing]

This isn't an SVG vs PNG issue, but it comes down to the fact that you're using two different plotting functions with very different purposes (plot_graph vs plot_figure_ground). Just pass the dist argument into plot_figure_ground to override its 805-meter default parameterization. It's described in the documentation: https://osmnx.readthedocs.io/en/stable/osmnx.html#osmnx.plot.plot_figure_ground