[Minor] Fix Frame::isFixed.

d891373f · Joseph Mirabel · 81497243 · d891373f
Commit d891373f authored Mar 10, 2020 by Joseph Mirabel
--- a/src/frame.cc
+++ b/src/frame.cc
@@ -77,7 +77,7 @@ namespace hpp {

    bool Frame::isFixed () const
    {
-      return pinocchio().type == ::pinocchio::FIXED_JOINT;
+      return pinocchio().type != ::pinocchio::JOINT;
    }

    JointPtr_t Frame::joint () const