Improve figure captions

lanl · Jul 31, 2024 · 00d67af · 00d67af
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Showing 2 changed files with 9 additions and 11 deletions.
diff --git a/scico/linop/xray/__init__.py b/scico/linop/xray/__init__.py
@@ -26,14 +26,11 @@
    :align: center
    :include-source: False
    :show-source-link: False
-   :caption: Comparison of 2D X-ray projector geometries. The red arrows
-      are directed towards the detector, which is oriented with pixel
-      indices ordered in the same direction as clockwise rotation (e.g.
-      in the "scico" geometry, the :math:`\theta=0` projection
-      corresponds to row sums ordered from the top to the bottom of the
-      figure, while the :math:`\theta=\pi` projection
-      corresponds to row sums ordered from the bottom to the top of the
-      figure).
+   :caption: Comparison of 2D X-ray projector geometries. The radial
+      arrow are directed towards the locations of the corresponding
+      detectors (indicated in orange in the "light" display mode), with
+      the direction of increasing pixel indices indicated by the arrows
+      of the same color.
 
 |
 

diff --git a/scico/linop/xray/astra.py b/scico/linop/xray/astra.py
@@ -252,9 +252,10 @@ class XRayTransform3D(LinearOperator):  # pragma: no cover
        :align: center
        :include-source: False
        :show-source-link: False
-       :caption: Red arrows indicate the direction of the beam towards
-          the detector (orange) and the arrows parallel to the detector
-          indicate the direction of increasing pixel indices.
+       :caption: Each radial arrow indicates the direction of the beam
+          towards the detector (indicated in orange in the "light"
+          display mode) and the arrow parallel to the detector indicates
+          the direction of increasing pixel indices.
 
     In this case the `z` axis is in the same direction as the
     vertical/row axis of the detector and its projection corresponds to