Replace ’ with more standard ' character

Signed-off-by: Steve Peters <[email protected]>
gazebosim · Apr 19, 2022 · 77630dd · 77630dd
1 parent 0a57cd6
commit 77630dd
Showing 1 changed file with 13 additions and 13 deletions.
diff --git a/sdf/1.9/inertial.sdf b/sdf/1.9/inertial.sdf
@@ -1,7 +1,7 @@
 <!-- Inertial -->
 <element name="inertial" required="0">
   <description>
-    The link’s mass, position of its center of mass, and its central inertia
+    The link's mass, position of its center of mass, and its central inertia
     properties.
   </description>
 
@@ -12,11 +12,11 @@
   <element name="pose" type="pose" default="0 0 0 0 0 0" required="0">
     <description>
       This pose (translation, rotation) describes the position and orientation
-      of the link’s center-of-mass-frame C relative to the link-frame L.
+      of the link's center-of-mass-frame C relative to the link-frame L.
       The first three components (x y z) specify the position vector from Lo
-      (the link-frame origin) to Co (the link’s center of mass) as
-      `x L̂x + y L̂y + z L̂ᴢ`, where L̂x, L̂y, L̂ᴢ are link-frame L’s orthogonal unit
-      vectors. The subsequent values characterize C’s orientation relative to
+      (the link-frame origin) to Co (the link's center of mass) as
+      `x L̂x + y L̂y + z L̂ᴢ`, where L̂x, L̂y, L̂ᴢ are link-frame L's orthogonal unit
+      vectors. The subsequent values characterize C's orientation relative to
       link-frame L as a sequence of Euler rotations
       (r p y) documented in http://sdformat.org/tutorials?tut=specify_pose,
       or as a quaternion (x y z w), where w is the scalar component.
@@ -39,8 +39,8 @@
 
   <element name="inertia" required="0">
     <description>
-      This link’s moments of inertia ixx, iyy, izz and products of inertia
-      ixy, ixz, iyz about Co (the link’s center of mass) for the unit vectors
+      This link's moments of inertia ixx, iyy, izz and products of inertia
+      ixy, ixz, iyz about Co (the link's center of mass) for the unit vectors
       Ĉx, Ĉy, Ĉᴢ fixed in the center-of-mass-frame C.
       Note: the orientation of Ĉx, Ĉy, Ĉᴢ relative to L̂x, L̂y, L̂ᴢ is specified
       by the `pose` tag.
@@ -53,38 +53,38 @@
     </description>
     <element name="ixx" type="double" default="1.0" required="1">
       <description>
-        The link’s moment of inertia about Co (the link’s center of mass) for Ĉx.
+        The link's moment of inertia about Co (the link's center of mass) for Ĉx.
       </description>
     </element>
     <element name="ixy" type="double" default="0.0" required="1">
       <description>
-        The link’s product of inertia about Co (the link’s center of mass) for
+        The link's product of inertia about Co (the link's center of mass) for
         Ĉx and Ĉy, where the product of inertia convention -m x y  (not +m x y)
         is used. If Ĉx or Ĉy is a principal inertia direction, ixy = 0.
       </description>
     </element>
     <element name="ixz" type="double" default="0.0" required="1">
       <description>
-        The link’s product of inertia about Co (the link’s center of mass) for
+        The link's product of inertia about Co (the link's center of mass) for
         Ĉx and Ĉz, where the product of inertia convention -m x z  (not +m x z)
         is used. If Ĉx or Ĉz is a principal inertia direction, ixz = 0.
       </description>
     </element>
     <element name="iyy" type="double" default="1.0" required="1">
       <description>
-        The link’s moment of inertia about Co (the link’s center of mass) for Ĉy.
+        The link's moment of inertia about Co (the link's center of mass) for Ĉy.
       </description>
     </element>
     <element name="iyz" type="double" default="0.0" required="1">
       <description>
-        The link’s product of inertia about Co (the link’s center of mass) for
+        The link's product of inertia about Co (the link's center of mass) for
         Ĉy and Ĉz, where the product of inertia convention -m y z  (not +m y z)
         is used. If Ĉy or Ĉz is a principal inertia direction, iyz = 0.
       </description>
     </element>
     <element name="izz" type="double" default="1.0" required="1">
       <description>
-        The link’s moment of inertia about Co (the link’s center of mass) for Ĉz.
+        The link's moment of inertia about Co (the link's center of mass) for Ĉz.
       </description>
     </element>
   </element> <!-- End Inertia -->