Thiết kế flash - Multiview projections - 2

Multiview Projections - 2Treatment of Common SurfacesNormal SurfacesA normal surface appears as a surface in one multiviewThe area of this surface is the true area of the surfaceIn the other two multiviews, a normal surface appears as an edgeInclined SurfacesAn inclined surface appears as a surface in two multiviewsNot true size in either of these views In the third multiview the inclined surface appears as an edgeOblique SurfacesAn oblique surface appears as a surface in all three multiviewsIn none of these views does the surface appear true sizeSingle-Curved SurfacesA single-curved surface has curvature about a single axis Curvature only seen in one multiviewCenter lines used to indicate axis of curvatureIn isometric views, single-curved surfaces appear as ellipsesTopFrontRightIsometricDDDDMultiview Projections - 2Treatment of Common Surfaces