* layer 0
Layer 0 is the default layer of every drawing, which could not be deleted. There are some special properties of layer 0. Please see another blog post to review the differences between layer 0 and other layers.
CAD drawings range from the simplest with a few hundred geometric objects to the most complex ones with millions of geometric objects.
In lower version of CAD, when graphics objects cover each other, we’ll need to set sequence for them and make text, dimension and some graphics objects show on top and make other objects show in the bottom.
Layer is an important concept in CAD and to better understand layer and the related concepts such as current layer, please refer to the post basics about layer.
We all know that layer 0 is the default CAD layer, but what’s the difference between layer 0 and other layers?
If we change the color of layer, will the color of objects on the layer change accordingly?
What we can do with Layer
With Layer, we can organize complex objects or graphics in good order. We can change the color, linetype, lineweight, and some other properties. We can put some objects with similar properties on the same layer, for example, we can put text, dimension on a separate layer. Layer is a useful tool for managing objects effectively.