Drawing vertical curves

[Brad James]

I want to draw a vertical curve such as a radius on a road where the
elevations will be different on either end. Don't want to go through setting
up road centrelines and such. Many short roads as on a plant site. what is
the easiest way to do this. Also need to do the same thing for ditches etc.

[Ran]

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"Brad James" <brad@surveysoft.ca> wrote in message
news:dl21d2$9vu$1@update.carlsonsw.com...

I want to draw a vertical curve such as a radius on a road where the
elevations will be different on either end. Don't want to go through
setting up road centrelines and such. Many short roads as on a plant site.
what is the easiest way to do this. Also need to do the same thing for
ditches etc.

[Brad James]

nothing to do with profiles. a vertical curve drawn from the top down
perspective.

"Ran" <navaran@zahav.net.il> wrote in message
news:dl41je$9id$1@update.carlsonsw.com...

Section-Profile>Profiles>Quick Profile

"Brad James" <brad@surveysoft.ca> wrote in message
news:dl21d2$9vu$1@update.carlsonsw.com...
I want to draw a vertical curve such as a radius on a road where the
elevations will be different on either end. Don't want to go through
setting up road centrelines and such. Many short roads as on a plant site.
what is the easiest way to do this. Also need to do the same thing for
ditches etc.

[Jason Bly]

Your wanting to draw a 3d polyline in the plan view to represent a vertical
curve, correct?

"Brad James" <brad@surveysoft.ca> wrote in message
news:dl6kav$est$1@update.carlsonsw.com...

nothing to do with profiles. a vertical curve drawn from the top down
perspective.

"Ran" <navaran@zahav.net.il> wrote in message
news:dl41je$9id$1@update.carlsonsw.com...
Section-Profile>Profiles>Quick Profile

"Brad James" <brad@surveysoft.ca> wrote in message
news:dl21d2$9vu$1@update.carlsonsw.com...
I want to draw a vertical curve such as a radius on a road where the
elevations will be different on either end. Don't want to go through
setting up road centrelines and such. Many short roads as on a plant
site.
what is the easiest way to do this. Also need to do the same thing for
ditches etc.

[Terry Scanlon]

Brad,

There may be a problem with terminology here. A "vertical curve" would look
like any other alignment in top down perspective.

It sounds like you are looking for an 3d arc. (A horizontal curve with
varying elevations). Autocad 3d polylines cannot have arcs. There are a
number of routines in SurvCadd which use chord segments to approximate the
arc when converted to 3d.

I copy my 2d linework to another layer for 3d work (to preserve the original
arcs). One can then convert the 2d polylines to 3d with various commands in
the 3dpoly pulldown menu in the DTM module.



"Brad James" <brad@surveysoft.ca> wrote in message
news:dl6kav$est$1@update.carlsonsw.com...

nothing to do with profiles. a vertical curve drawn from the top down
perspective.

"Ran" <navaran@zahav.net.il> wrote in message
news:dl41je$9id$1@update.carlsonsw.com...
Section-Profile>Profiles>Quick Profile

"Brad James" <brad@surveysoft.ca> wrote in message
news:dl21d2$9vu$1@update.carlsonsw.com...
I want to draw a vertical curve such as a radius on a road where the
elevations will be different on either end. Don't want to go through
setting up road centrelines and such. Many short roads as on a plant
site. what is the easiest way to do this. Also need to do the same thing
for ditches etc.