Re: vECTOR USERS QUESTION.

--- In CAD_CAM_EDM_DRO@y..., wanliker@a... wrote:

> Please tell me how layers work, can I put something on a layer and

then lock

> it so that working on another layer it can't be changed, I seem to

be able to

> screw it up somehow, selecting and deleting when I don't want to.

Layers in Vector are entity attributes only. They are not
containers, they have no more significance than the color of a line
or arc. If you select lines, and one is "on" a layer you want, but
you delete it, it will be gone. The Edit-Select dialog, allows you
to select by various entity attributes, like type (arc, line, point,
dimension, etc.), layer, linestyle, line weight, color, text height.
I rarely use the Select all found under Special, but rather prefer
the attribute selection. This also allows boolean "and" (and "or"
within category) selection criteria, so that you can select all
blue "or" green arcs "and" with a line width of .03 "and" on layer
ABC. Just those specific entities will be selected.

Vector only works on selected entities, and if you want absolute
insurance against inadvertantly destroying a portion of your drawing,
make it invisible with Change-Attributes-Blank. You can unblank by
layer.