z-axis

[Anonymous]

Hi all.

I'm working on an architectural drawing from someone & somewhere else (not
acad).
Editing has been a major pain. Apparently it was produced as 3-d. All
elements have thicknesses greater than 0 and "z-axis" greater than 0. Is it
possible to globally change the "z" to zero? This will enable me to edit
easier.

Thanks for the help.

jbm

[Anonymous]

On a COPY of the drawing in question, use the command sequence:

MOVE
All
0,0,1e99
MOVE
All
0,0,-1e99

...now everything should be at z=0. If you need to change thicknesses to
0, use the CHProp / All command.
__
"John Martin" wrote in message
news:eeff30b.-1@WebX.SaUCah8kaAW...
> Hi all.
>
> I'm working on an architectural drawing from someone & somewhere else
(not
> acad).
> Editing has been a major pain. Apparently it was produced as 3-d. All
> elements have thicknesses greater than 0 and "z-axis" greater than 0.
Is it
> possible to globally change the "z" to zero? This will enable me to
edit
> easier.
>
> Thanks for the help.
>
> jbm
>

[Anonymous]

Awesome, thanks a million. I was changing each entity one at a time.
Tooooo slow.
But, what did I do exactly? move to 0,0 I understand, but 0,0,1e99?
and -1e99?

[Anonymous]

You just moved everything to a place on the z-axis so remote that AutoCAD
couldn't handle enough significant digits (1e99 = 1 followed by 99
zeros); then you moved them back again (1e-99 = 0.<<98 zeros>>1). The
relatively "small" z-coordinates get lost in the translation. Not my
discovery (thank Randy Richardson for that), but I use it all the time.
__
"John Martin" wrote in message
news:eeff30b.1@WebX.SaUCah8kaAW...
> Awesome, thanks a million. I was changing each entity one at a time.
> Tooooo slow.
> But, what did I do exactly? move to 0,0 I understand, but 0,0,1e99?
> and -1e99?
>

[Anonymous]

BTW, the reason I suggested trying it on a *copy* of your drawing, is
that doing this can have very unexpected results if your UCS is rotated
or a handful of other conditions exist; not a problem with most drawings,
but caution always pays.
__
"Paul Turvill" wrote in message
news:eeff30b.2@WebX.SaUCah8kaAW...
> You just moved everything to a place on the z-axis so remote that
AutoCAD
> couldn't handle enough significant digits (1e99 = 1 followed by 99
> zeros); then you moved them back again (1e-99 = 0.<<98 zeros>>1). The
> relatively "small" z-coordinates get lost in the translation. Not my
> discovery (thank Randy Richardson for that), but I use it all the time.
> __
> "John Martin" wrote in message
> news:eeff30b.1@WebX.SaUCah8kaAW...
> > Awesome, thanks a million. I was changing each entity one at a time.
> > Tooooo slow.
> > But, what did I do exactly? move to 0,0 I understand, but 0,0,1e99?
> > and -1e99?
> >
>