Redo sizes and alternate texts for step-10.

This grids are way too large on any reasonably sized monitor; make them much
smaller.

diff --git a/examples/step-10/doc/results.dox b/examples/step-10/doc/results.dox
index b6b000b572954cf66745393f4d4aadc93524779d..208f2745738bcb7fba0debaf622e25ca85e7a48b 100644 (file)
--- a/examples/step-10/doc/results.dox
+++ b/examples/step-10/doc/results.dox
@@ -27,22 +27,38 @@ uniformly refined grid (right).
 
 <div class="twocolumn" style="width: 80%">
   <div>
-    <img src="https://www.dealii.org/images/steps/developer/step_10_ball_0_q1.svg">
+    <img src="https://www.dealii.org/images/steps/developer/step_10_ball_0_q1.svg"
+         alt="Five-cell discretization of the disk."
+         width="400" height="400">
   </div>
   <div>
-    <img src="https://www.dealii.org/images/steps/developer/step_10_ball_1_q1.svg">
+    <img src="https://www.dealii.org/images/steps/developer/step_10_ball_1_q1.svg"
+         alt="20-cell discretization of the disk (i.e., five cells
+              refined once)."
+         width="400" height="400">
   </div>
   <div>
-    <img src="https://www.dealii.org/images/steps/developer/step_10_ball_0_q2.svg">
+    <img src="https://www.dealii.org/images/steps/developer/step_10_ball_0_q2.svg"
+         alt="Five-cell discretization of the disk with quadratic edges. The
+              boundary is nearly indistinguishable from the actual circle."
+         width="400" height="400"
+         >
   </div>
   <div>
-    <img src="https://www.dealii.org/images/steps/developer/step_10_ball_1_q2.svg">
+    <img src="https://www.dealii.org/images/steps/developer/step_10_ball_1_q2.svg"
+         alt="20-cell discretization with quadratic edges."
+         width="400" height="400">
   </div>
   <div>
-    <img src="https://www.dealii.org/images/steps/developer/step_10_ball_0_q3.svg">
+    <img src="https://www.dealii.org/images/steps/developer/step_10_ball_0_q3.svg"
+         alt="Five-cell discretization of the disk with cubic edges. The
+              boundary is nearly indistinguishable from the actual circle."
+         width="400" height="400">
   </div>
   <div>
-    <img src="https://www.dealii.org/images/steps/developer/step_10_ball_1_q3.svg">
+    <img src="https://www.dealii.org/images/steps/developer/step_10_ball_1_q3.svg"
+         alt="20-cell discretization with cubic edges."
+         width="400" height="400">
   </div>
 </div>
 
@@ -54,10 +70,16 @@ red line marks the actual circle:
 
 <div class="twocolumn" style="width: 80%">
   <div>
-    <img src="https://www.dealii.org/images/steps/developer/step_10_exact_vs_interpolate_q2.svg">
+    <img src="https://www.dealii.org/images/steps/developer/step_10_exact_vs_interpolate_q2.svg"
+         alt="Close-up of quadratic discretization. The distance between the
+         quadratic interpolant and the actual circle is small."
+         width="400" height="400">
   </div>
   <div>
-    <img src="https://www.dealii.org/images/steps/developer/step_10_exact_vs_interpolate_q3.svg">
+    <img src="https://www.dealii.org/images/steps/developer/step_10_exact_vs_interpolate_q3.svg"
+         alt="Close-up of cubic discretization. The distance between the
+         cubic interpolant and the actual circle is very small."
+         width="400" height="400">
   </div>
 </div>