A birdcage (or bird cage) is a cage designed to house birds as pets. Antique (or antique-style) birdcages are often popular as collectors' items or as household decor but most are not suitable for housing live birds, being too small, or of unsafe materials or construction.ood quality cages designed for pet birds are more suitable. Most parrot cages are made or wrought iron and painted with a non-toxic paint referred to as powder-coating. However, the newest trend in the market is cages made of solid stainless steel.
A viewport is a 2D rectangle that defines the size of the rendering surface onto which a 3D scene is projected.
Working on the Model tab, you draw a model of your subject at 1:1 scale. Working on a layout tab, you place one or more. viewports, dimensions, notes, and a title block to represent a drawing sheet. On a layout tab, each layout viewport is like a picture frame containing a âphotographâ of the model. Each layout viewport. contains a view that displays the model at the scale and orientation that you specify. You can also specify which layers are. visible in each layout viewport. After you finish arranging the layout, you turn off the layer that contains the layout viewport objects. The views are still.