TEST: Adjustments for hexagon shape size of r0

Co-authored-by: Yvonne Fröhlich <94163266+yvonnefroehlich@users.noreply.github.com>

Author: yvonnefroehlich

pygmt/src/pygmtlogo.py

@@ -75,10 +75,10 @@ def _create_logo(  # noqa: PLR0915
             arrow_y = -r0
         case "hexagon":
             symbol = "h"  # hexagon
-            size_shape = (r0 + 0.3) * 2  # diameter
+            size_shape = r0 * 2  # diameter
             size_shape_add = 0.6
-            vline_y = r0 * 0.99
-            arrow_y = -r0 * 0.99
+            vline_y = r0 * 0.93
+            arrow_y = -r0 * 0.93
 
     # Define wordmark
     font = "AvantGarde-Book"
@@ -138,7 +138,7 @@ def _compass_lines():
         Coordinates of compass lines.
         """
         sqrt2 = np.sqrt(2) / 2
-        x1, x2, x3 = r0 * sqrt2, r3 * sqrt2, (r2 + (r3 - r4)) * sqrt2
+        x1, x2, x3 = r1 * sqrt2, r3 * sqrt2, (r2 + (r3 - r4)) * sqrt2
         # Coordinates of vectors in the format of (x_start, y_start, x_end, y_end).
         return [
             (-r0, 0, -r3, 0),  # left horizontal