Using custom bounding area for rendering

[Jakub-L]

At the moment, as far as I am aware, there are 2 ways to define what to render:

1. Provide an address or coordinates + a radius around that point
2. Provide an enclosed feature in OSM (region, city, lake, etc.)

I would like to define the area to render by a number of coordinates - e.g. four street corners in a city.

I tried to do it with a Polygon, with a list of coordinates, but it errors out:

Traceback (most recent call last):
  File "/home/jakub-l/prettymap/main.py", line 9, in <module>
    backup = plot(
  File "/home/jakub-l/.pyenv/versions/prettymap/lib/python3.9/site-packages/prettymaps/draw.py", line 189, in plot
    layers = {
  File "/home/jakub-l/.pyenv/versions/prettymap/lib/python3.9/site-packages/prettymaps/draw.py", line 190, in <dictcomp>
    layer: get_layer(
  File "/home/jakub-l/.pyenv/versions/prettymap/lib/python3.9/site-packages/prettymaps/fetch.py", line 132, in get_layer
    return unary_union(ox.project_gdf(kwargs['perimeter']).geometry)
  File "/home/jakub-l/.pyenv/versions/prettymap/lib/python3.9/site-packages/osmnx/projection.py", line 72, in project_gdf
    if gdf.crs is None or len(gdf) < 1:
AttributeError: 'Polygon' object has no attribute 'crs'

[G21-Goose]

Hi, You can create a Polygon in a GeoDataFrame. Note that the Latitude and Longitude are in reverse order. This is an example of what it should look like for a box around Eureka California around (40.8003, -124.1628):

GeoDataFrame(geometry=[Polygon( ( (-124.1879,40.7762),(-124.1211,40.7737),(-124.1189,40.8251),(-124.1738,40.8194),(-124.1927,40.7868) ) )], crs=4326)

at the moment this might fail if you try this with streets, but I've just done a PR that should fix this #48.

[b-a0]

Another point I ran into: the index should be a RangeIndex as otherwise it prettymaps cannot create a Nominatim query properly.