Tune spline UI zoom limits

Zoom further in, but not as far out.

Change-Id: I6c695f8687f3b38e9d2c64667c71ee8a47949b1a
Signed-off-by: Austin Schuh <austin.linux@gmail.com>
diff --git a/frc971/control_loops/python/path_edit.py b/frc971/control_loops/python/path_edit.py
index bf54f60..4e97dde 100755
--- a/frc971/control_loops/python/path_edit.py
+++ b/frc971/control_loops/python/path_edit.py
@@ -454,9 +454,9 @@
         point = self.mousex, self.mousey
 
         # This restricts the amount it can be scaled.
-        if self.transform.xx <= 0.4:
+        if self.transform.xx <= 0.75:
             scale = max(scale, 1)
-        elif self.transform.xx >= 4:
+        elif self.transform.xx >= 16:
             scale = min(scale, 1)
 
         # move the origin to point