<<>> <> <> <<>> DIRECTORY CADTypes USING [ScadSequence, VariableRec, VisibleMaskSequence], LightingModels USING [Model], MultiPolynomial USING [MultiPolSequence], Rope USING [ROPE], ShadingModels USING [ShadingSequence], Geometry3dVector USING [Triple]; SurfaceTracer: CEDAR DEFINITIONS ~ BEGIN <> <> <> <> <> <> <<>> <> <> <<>> TraceSurfaces: PROC [ surfaces: REF MultiPolynomial.MultiPolSequence, variables: CADTypes.VariableRec, colors: REF ShadingModels.ShadingSequence, screenCenter, screenU, screenV: Geometry3dVector.Triple, pixelsU, pixelsV: NAT, lightingModel: LightingModels.Model, filename: Rope.ROPE]; TraceCells: PROC [ surfaces: REF CADTypes.ScadSequence, variables: CADTypes.VariableRec, colors: REF ShadingModels.ShadingSequence, masks: REF CADTypes.VisibleMaskSequence, screenCenter, screenU, screenV: Geometry3dVector.Triple, pixelsU, pixelsV: NAT, lightingModel: LightingModels.Model, filename: Rope.ROPE]; END.