Wire mat_plot font sizes and figsize from visualize/general.yaml

Previously the plot functions used hardcoded font sizes (title=16,
xlabel/ylabel=14, ticks=12) and conf_figsize read a non-existent path,
so config values were never applied.

- utils.py: add conf_mat_plot_fontsize() to read from
  visualize/general/mat_plot/<section>/fontsize
- utils.py: add apply_labels() which calls set_title/set_xlabel/
  set_ylabel/tick_params using config-driven font sizes; eliminates the
  duplicated 4-line label block in every plot function
- utils.py: fix conf_figsize() to read from mat_plot/figure/figsize
  (the key that actually exists in the config); add _parse_figsize()
  helper to handle YAML tuple-as-string encoding "(7, 7)"
- array.py, grid.py, yx.py, inversion.py: replace hardcoded label
  blocks with apply_labels()
- __init__.py: export apply_labels and conf_mat_plot_fontsize

https://claude.ai/code/session_01B9sVEV54XWCa2LJw1C8gvv

Author: claude

autoarray/plot/__init__.py

@@ -26,7 +26,9 @@ def _set_backend():
 from autoarray.plot.inversion import plot_inversion_reconstruction
 from autoarray.plot.utils import (
     apply_extent,
+    apply_labels,
     conf_figsize,
+    conf_mat_plot_fontsize,
     save_figure,
     subplot_save,
     auto_mask_edge,

autoarray/plot/array.py

@@ -11,6 +11,7 @@
 
 from autoarray.plot.utils import (
     apply_extent,
+    apply_labels,
     conf_figsize,
     save_figure,
     zoom_array,
@@ -262,10 +263,7 @@ def plot_array(
             pass
 
     # --- labels / ticks --------------------------------------------------------
-    ax.set_title(title, fontsize=16)
-    ax.set_xlabel(xlabel, fontsize=14)
-    ax.set_ylabel(ylabel, fontsize=14)
-    ax.tick_params(labelsize=12)
+    apply_labels(ax, title=title, xlabel=xlabel, ylabel=ylabel)
 
     if extent is not None:
         apply_extent(ax, extent)

autoarray/plot/grid.py

@@ -9,7 +9,13 @@
 import matplotlib.pyplot as plt
 import numpy as np
 
-from autoarray.plot.utils import apply_extent, conf_figsize, save_figure, numpy_lines
+from autoarray.plot.utils import (
+    apply_extent,
+    apply_labels,
+    conf_figsize,
+    save_figure,
+    numpy_lines,
+)
 
 
 def plot_grid(
@@ -142,10 +148,7 @@ def plot_grid(
                 ax.plot(line[:, 1], line[:, 0], linewidth=2)
 
     # --- labels ----------------------------------------------------------------
-    ax.set_title(title, fontsize=16)
-    ax.set_xlabel(xlabel, fontsize=14)
-    ax.set_ylabel(ylabel, fontsize=14)
-    ax.tick_params(labelsize=12)
+    apply_labels(ax, title=title, xlabel=xlabel, ylabel=ylabel)
 
     # --- extent ----------------------------------------------------------------
     if extent is None:

autoarray/plot/inversion.py

@@ -10,7 +10,7 @@
 import numpy as np
 from matplotlib.colors import LogNorm, Normalize
 
-from autoarray.plot.utils import apply_extent, conf_figsize, save_figure
+from autoarray.plot.utils import apply_extent, apply_labels, conf_figsize, save_figure
 
 
 def plot_inversion_reconstruction(
@@ -125,10 +125,7 @@ def plot_inversion_reconstruction(
 
     apply_extent(ax, extent)
 
-    ax.set_title(title, fontsize=16)
-    ax.set_xlabel(xlabel, fontsize=14)
-    ax.set_ylabel(ylabel, fontsize=14)
-    ax.tick_params(labelsize=12)
+    apply_labels(ax, title=title, xlabel=xlabel, ylabel=ylabel)
 
     if owns_figure:
         save_figure(

autoarray/plot/utils.py

@@ -305,23 +305,102 @@ def subplot_save(fig, output_path, output_filename, output_format):
     plt.close(fig)
 
 
+def conf_mat_plot_fontsize(section: str, default: int) -> int:
+    """Read a font size from the ``mat_plot`` section of ``visualize/general.yaml``.
+
+    Parameters
+    ----------
+    section
+        Sub-key inside ``mat_plot``, e.g. ``"title"``, ``"xlabel"``,
+        ``"ylabel"``, ``"xticks"``, or ``"yticks"``.
+    default
+        Value returned when the config key is absent or unreadable.
+
+    Returns
+    -------
+    int
+        The configured font size.
+    """
+    try:
+        from autoconf import conf
+
+        return int(
+            conf.instance["visualize"]["general"]["mat_plot"][section]["fontsize"]
+        )
+    except Exception:
+        return default
+
+
+def _parse_figsize(raw) -> Tuple[int, int]:
+    """Convert *raw* (a tuple/list or a string like ``"(7, 7)"``) to a 2-tuple."""
+    if isinstance(raw, (tuple, list)):
+        return tuple(raw)
+    import ast
+
+    return tuple(ast.literal_eval(str(raw)))
+
+
 def conf_figsize(context: str = "figures") -> Tuple[int, int]:
     """
     Read figsize from ``visualize/general.yaml`` for the given context.
 
+    For single-panel figures the value is taken from
+    ``mat_plot/figure/figsize``; the *context* argument is kept for
+    backward compatibility with subplot callers that pass ``"subplots"``.
+
     Parameters
     ----------
     context
-        Either ``"figures"`` (single-panel) or ``"subplots"`` (multi-panel).
+        ``"figures"`` (single-panel) or ``"subplots"`` (multi-panel).
     """
     try:
         from autoconf import conf
 
+        if context == "figures":
+            raw = conf.instance["visualize"]["general"]["mat_plot"]["figure"]["figsize"]
+            return _parse_figsize(raw)
         return tuple(conf.instance["visualize"]["general"][context]["figsize"])
     except Exception:
         return (7, 7) if context == "figures" else (19, 16)
 
 
+def apply_labels(
+    ax: plt.Axes,
+    title: str = "",
+    xlabel: str = "",
+    ylabel: str = "",
+) -> None:
+    """Apply title, axis labels, and tick font sizes to *ax* from config.
+
+    Reads font sizes from the ``mat_plot`` section of
+    ``visualize/general.yaml`` so that users can override them globally
+    without touching call sites.  Falls back to the values that the
+    old ``MatWrap`` system used when the config is unavailable.
+
+    Parameters
+    ----------
+    ax
+        The matplotlib axes to configure.
+    title
+        Title string.
+    xlabel
+        X-axis label string.
+    ylabel
+        Y-axis label string.
+    """
+    title_fs = conf_mat_plot_fontsize("title", default=16)
+    xlabel_fs = conf_mat_plot_fontsize("xlabel", default=14)
+    ylabel_fs = conf_mat_plot_fontsize("ylabel", default=14)
+    xticks_fs = conf_mat_plot_fontsize("xticks", default=12)
+    yticks_fs = conf_mat_plot_fontsize("yticks", default=12)
+
+    ax.set_title(title, fontsize=title_fs)
+    ax.set_xlabel(xlabel, fontsize=xlabel_fs)
+    ax.set_ylabel(ylabel, fontsize=ylabel_fs)
+    ax.tick_params(axis="x", labelsize=xticks_fs)
+    ax.tick_params(axis="y", labelsize=yticks_fs)
+
+
 def save_figure(
     fig: plt.Figure,
     path: str,

autoarray/plot/yx.py

@@ -9,7 +9,7 @@
 import matplotlib.pyplot as plt
 import numpy as np
 
-from autoarray.plot.utils import conf_figsize, save_figure
+from autoarray.plot.utils import apply_labels, conf_figsize, save_figure
 
 
 def plot_yx(
@@ -129,10 +129,7 @@ def plot_yx(
         ax.fill_between(x, y1, y2, alpha=0.3)
 
     # --- labels ----------------------------------------------------------------
-    ax.set_title(title, fontsize=16)
-    ax.set_xlabel(xlabel, fontsize=14)
-    ax.set_ylabel(ylabel, fontsize=14)
-    ax.tick_params(labelsize=12)
+    apply_labels(ax, title=title, xlabel=xlabel, ylabel=ylabel)
 
     if label is not None:
         ax.legend(fontsize=12)