updated docs

docs/docs/linear_algebra.xml

@@ -621,6 +621,7 @@
          <item>point_transform</item> 
          <item>camera_transform</item> 
          <item>point_transform_affine</item> 
+         <item>rectangle_transform</item> 
          <item>point_transform_affine3d</item> 
          <item>find_affine_transform</item> 
          <item>find_similarity_transform</item> 
@@ -1110,6 +1111,19 @@
                                  
       </component>
 
+   <!-- ************************************************************************* -->
+
+      <component>
+         <name>rectangle_transform</name>
+         <file>dlib/geometry.h</file>
+         <spec_file link="true">dlib/geometry/point_transforms_abstract.h</spec_file>
+         <description>        
+            This is an object that applies a <a href="#point_transform_affine">2D affine transformation</a> 
+            to a <a href="#rectangle">rectangle</a> or <a href="#drectangle">drectangle</a>.  
+         </description>
+                                 
+      </component>
+
    <!-- ************************************************************************* -->
 
       <component>

docs/docs/term_index.xml

@@ -356,6 +356,7 @@
          <term file="linear_algebra.html" name="point_rotator"             include="dlib/geometry.h"/>
          <term file="linear_algebra.html" name="point_transform"           include="dlib/geometry.h"/>
          <term file="linear_algebra.html" name="point_transform_affine"    include="dlib/geometry.h"/>
+         <term file="linear_algebra.html" name="rectangle_transform"       include="dlib/geometry.h"/>
          <term file="linear_algebra.html" name="camera_transform"          include="dlib/geometry.h"/>
          <term file="linear_algebra.html" name="point_transform_affine3d"  include="dlib/geometry.h"/>
          <term file="linear_algebra.html" name="rotate_around_x"           include="dlib/geometry.h"/>