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HOOPS supports a variety of approaches to avoid specific portions of your model from interacting with HPS Cutting Sections (3DFCutting Planes).

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HPS MFC Sandbox

Instructions

Local Cutting Sections

• In this approach, the scope of the cutting section is local

  • HPS → SetCuttingLevel

  • 3DF → Set_Rendering_Options

• The cutting section is applied to geometry in the segment and subsegments where it is defined

• The cutting section is ignored by other parts of the segment hierarchy

Cutting Sections Visibility

•  In this approach, the visibility is used to effectively turn off a cutting section for portions of the scene graph

  • HPS → SetCuttingSections

  • 3DF → Set_Visibility(“cutting planes = on/off”)

• As with other attributes, inheritance rules apply

Consider an example (shown in the scene above) where there are three different models (i.e. red, green and blue spheres). Setting the visibility of the cutting sections to false, prevents application of the cutting plane. The following sample code illustrates how this works;

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For further instructions, check out our forum posts.

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