Take Notes: You can use your hand written notes during the tests
What are Layers?· Layers are like drawing on clear plastic where each layer of plastic is a different layer of drawing.
When and why would Layers be used?· When drawing in CADD you are always drawing on a layer – it may be the default layer.
· Each layer has color, linetype, lineweight (thickness), and plot style that can be set. · You can use layers to organize your drawing into groups of objects such as linetypes (centerlines, object lines, etc.) or in the case of home design you can have layers like walls, electrical components, plumbing, appliances, roof, furniture, etc. · You can turn certain layers off (or freeze them) when you no longer need them or when you do not want to print (plot) that layer with the rest. |
· You can set a layer name and change the COLOR and LINETYPE as appropriate. Note: LINETYPES need to be loaded when you want a different type than Continuous.
· You can turn a layer on or off, freeze or thaw, lock or make them current by using the layers window beside the Layer Properties button.
· Note: The 0 (zero) layer is a special layer that is usually used to draw blocks (items that are used over and over such as a light switch symbol in architectural drawings). When you bring a block in that has been created on the “0” layer it will take on the properties of the layer you are currently working on (the current layer). All drawings have a “0” layer and it can not be renamed or deleted.