Drawing a border around a hatch pattern

Is there an easy way for an Acad freshman to do this? I want an
polyline outline of a the fire route roadways through a parking lot,
and what I have is the hatched area.


Happy Trails To You

 

Ooopsie!

No need.

For some unfathomable reason, and with an amazing degree of foresight,
Terramodel imported this particular hatch pattern as a border rather
than the fuzzy stuff with which it was drawn in Acad. Possibly
because of the way it was originally formed in Acad? (arcs as well as
straight edges?)

Or perhaps the original author drew the border for his hatching then
"hid" it, and I did not notice this in the Acad drawing.

It is distinctly odd given that other hatch patterns on the same layer
- those shading in the building pads - were imported as a zillion
straight lines, with no borders! (The buildings have "borders" on
other layers!)

Any suggestions from the Acad experts as to how these would have been
drawn in the first place? Perhaps it might help explain why Tm did
exactly the right thing upon importation. Or are my
assumptions/conjectures/whatever above correct?

- Tom




Happy Trails To You

 

Hatching always requires a border to define the hatched area. Isolate
this border via layer and create the polyline(s) from its segments.
Niko

 

Niko

Does Acad then not actually show the border after you hatch the area?

Or would it have been an overt (or covert) act on the part of the
draftsman to hide the border?

I didn't see it in Acad, but it showed up when I imported the dwg into
Terramodel.

Happy Trails To You

 

Acad hatch dialogue has the option to "Retain Boundaries". Click on
'Advanced' first (Acad R14, but somesuch in later versions, I guess).