Forward declaration of fisheye camera.

Forward declaration of PinholeCal3Fisheye needed by Python wrapper.

Author: roderick-koehle

gtsam/geometry/SimpleCamera.h

@@ -22,6 +22,7 @@
 #include <gtsam/geometry/Cal3Bundler.h>
 #include <gtsam/geometry/Cal3DS2.h>
 #include <gtsam/geometry/Cal3Unified.h>
+#include <gtsam/geometry/Cal3Fisheye.h>
 #include <gtsam/geometry/Cal3_S2.h>
 #include <gtsam/geometry/PinholeCamera.h>
 
@@ -33,7 +34,8 @@ namespace gtsam {
   using PinholeCameraCal3Bundler = gtsam::PinholeCamera<gtsam::Cal3Bundler>;
   using PinholeCameraCal3DS2 = gtsam::PinholeCamera<gtsam::Cal3DS2>;
   using PinholeCameraCal3Unified = gtsam::PinholeCamera<gtsam::Cal3Unified>;
-
+  using PinholeCameraCal3Fisheye = gtsam::PinholeCamera<gtsam::Cal3Fisheye>;
+  
 #ifdef GTSAM_ALLOW_DEPRECATED_SINCE_V41
 /**
  * @deprecated: SimpleCamera for backwards compatability with GTSAM 3.x