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Add zoom_adjust parameter to pygmt.datasets.load_tile_map and Figure.tilemap #2934

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merged 15 commits into from
Jan 8, 2024

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@weiji14 weiji14 commented Dec 30, 2023

Description of proposed changes

The zoom_adjust parameter is used to adjust the automatic zoom level by integer increments.

Preview at https://pygmt-dev--2934.org.readthedocs.build/en/2934/api/generated/pygmt.datasets.load_tile_map.html

Note: This requires contextily>=1.5.0, see geopandas/contextily#228.

Example usage:

import contextily
import pygmt

region = [-157.84, -157.8, 21.255, 21.285]  # West, East, South, North
fig = pygmt.Figure()
with fig.subplot(ncols=2, figsize=("15c", "6c"), sharey=True):
    # Regular zoom level
    fig.tilemap(
        zoom="auto",
        region=region,
        source=contextily.providers.CartoDB.Positron,
        panel=0,
        frame="+tAuto Zoom",
    )
    # Zoom level -1 (more zoomed out)
    fig.tilemap(
        zoom="auto",
        region=region,
        source=contextily.providers.CartoDB.Positron,
        zoom_adjust=-1,
        panel=1,
        frame="+tAuto Zoom -1",
    )
fig.savefig("zoom_adjust.png")
fig.show(width=1000)

produces

zoom_adjust

Fixes #

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The zoom_adjust parameter is used to adjust the automatic zoom level by integer increments. This was added in contextily=1.5.0, see geopandas/contextily#228.
@weiji14 weiji14 added enhancement Improving an existing feature upstream Bug or missing feature of upstream core GMT labels Dec 30, 2023
@weiji14 weiji14 added this to the 0.11.0 milestone Dec 30, 2023
@weiji14 weiji14 self-assigned this Dec 30, 2023
@@ -128,6 +141,7 @@ def load_tile_map(region, zoom="auto", source=None, lonlat=True, wait=0, max_ret
ll=lonlat,
wait=wait,
max_retries=max_retries,
zoom_adjust=zoom_adjust,
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Might need to make this backwards compatible with contextily<1.5.0.

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Yes, need to check the contextily version and also better to mention that the zoom_adjust parameter requires contextily>=1.5.0.

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Ok, documented at e48c08d, and added another commit at b428d12 to raise an error if zoom_adjust is used but contextily<1.5.0 is installed.

lonlat=True,
wait=0,
max_retries=2,
zoom_adjust=None,
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Add type hints to this newly added parameter?

Suggested change
zoom_adjust=None,
zoom_adjust: int | None,

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Done at f0c95d8 for just the zoom_adjust parameter. Since all the lines are changing, should I just add type hints for all the other parameters too?

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Perfer to focus on the zoom_adjust parameter only in this PR.

pygmt/datasets/tile_map.py Outdated Show resolved Hide resolved
automatically. Values outside of -1 to 1 are not recommended as they
can lead to slow execution. [Default is ``None``].

.. versionadded:: 0.11.0
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Maybe we should not add this until PyGMT reaches v1.0.0?

.. versionadded:: 0.11.0

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Ok, changed to using the note directive instead at 0b01664. I've also used the note and important directive/admonition in other parts of the docstring at 32c04f8:

image

If it looks a bit messy, I can also revert the changes back to the plain text version.

pygmt/datasets/tile_map.py Outdated Show resolved Hide resolved
pygmt/datasets/tile_map.py Outdated Show resolved Hide resolved
@@ -117,6 +135,15 @@ def load_tile_map(region, zoom="auto", source=None, lonlat=True, wait=0, max_ret
"to install the package."
)

contextily_kwargs = {}
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Do you want to also include zoom, source, ll, wait and max_retries in contextily_kwargs?

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Mm, not really necessary. I only made the contextily_kwargs dict to make things backwards compatible with contextily<1.5.0.

@weiji14 weiji14 marked this pull request as ready for review January 6, 2024 08:41
@weiji14 weiji14 added the final review call This PR requires final review and approval from a second reviewer label Jan 6, 2024
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weiji14 commented Jan 6, 2024

Gonna leave this open for another day or so in case someone wants to comment on anything.

pygmt/src/tilemap.py Outdated Show resolved Hide resolved
@weiji14 weiji14 merged commit c9c3a4a into main Jan 8, 2024
16 of 17 checks passed
@weiji14 weiji14 deleted the tilemap_zoom_adjust branch January 8, 2024 00:35
@weiji14 weiji14 removed the final review call This PR requires final review and approval from a second reviewer label Jan 8, 2024
@yvonnefroehlich yvonnefroehlich changed the title Add zoom_adjust param to pygmt.datasets.load_tile_map and Figure.tilemap Add zoom_adjust parameter to pygmt.datasets.load_tile_map and Figure.tilemap Jan 28, 2024
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