Projects stripes onto a 3D model to analyze surface continuity.
Access Methods
Button
Toolbar: Modeling tool set 
Analysis tool group Surface Analysis flyout Zebra AnalysisSummary
The way the stripes line up where two surfaces meet, helps analyze the tangency and curvature of the intersection.
In this example, the surface continuity is G0 because the surface edges are coincident, but they are not tangent and they have different curvatures. The fact that the stripes are not aligned shows that the surfaces are not tangent.
To change the zebra analysis display settings, use the Zebra Analysis tab of the Analysis Options dialog box.