# How to draw a spline in rviz

Hi We have integrated a rviz::RenderPanel to a custom GUI developed in Qt environment. We would like to draw a spline on the GUI. The approach we followed was first try to integrate pointflag to the GUI and connect those pointflag, We succeeded on integrating the point flag next we would like to connect those pointflags here is where we are struggling. Can any body provide us the solution to help us proceed further.

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I don't think there is explicit support for splines in RViz (or librviz). You could see whether you can access the underlying OGRE objects or perhaps try approximating using line strip.