Topic: grading from profile

[drizzt]

I created a design profile on an existing profile view using profile create by layout. I have all my vertical curves done, but I don't know how to get the profile into plan view so I can do my grading. Any help will be appreciated

[mjfarrell]

what are you 'grading with this profile?


you will want to 'Create a Corridor' first with an assembly...even if it only contains a 'marked' point with a TOP point code....
then you can use the Create Feature Line from Corridor to extract that profile..and then apply your grading criteria....

if I've confused you...it's because I need a little more information to be truly helpful   

WHAT are you designing?!!!

[reno]

assuming you're using 2010 or 2011, under the feature line pulldown on the create design panel of the home tab on the ribbon, choose "create feature line from alignment"

http://screencast.com/t/ZjdjYmQ5

[mjfarrell]

assuming you're using 2010 or 2011, under the feature line pulldown on the create design panel of the home tab on the ribbon, choose "create feature line from alignment"

if one use this method...keep an eye out for these settings:

Profile
Specifies a vertical alignment from which to acquire the elevations for the feature line. Click  to select a profile in the drawing. If the alignment does not have a vertical alignment, you can create the feature line only while the dynamic link option is disabled. For the dynamic link, a vertical alignment is required.

Mid-ordinate Distance
Sets the vertical curve tessellation factor.

Spiral Tessellation Factor
Sets the clothoid spiral tessellation factor.

Weed Points
Specifies whether to open the Weed Vertices dialog box so you can weed the objects when converting to a feature line. Change this value to True to open the Weed Vertices dialog box.

And note that this tool has the ability to LINK the feature line to the alignment/profile for dynamic updates to the feature line, and any gradings created from it.

The method I posted is more or less the 'old' way, as I haven't fully incorporated all the 'new' features into a coherent workflow

[drizzt]

I created an alignment, then I did a surface (existing) profile of that alignment. Then, on top of the existing profile, I drew the proposed profile with vertical curves. This profile is for a road. What I would like to do is take that proposed profile I drew and have the puter create a feature line on top of my existing alignment, but with the proposed elevations etc. I do not know how to use corridors yet.

[mjfarrell]

then use create feature line from alignment tool...and be sure to associate it with your design (layout) profile to keep it linked


or create an Assembly the represents your cross section (tell me what you need the section to do) and I'll tell which sub assemblies to use...then you can create you first corridor today

this could also help you out  Corridor Tutorial

[mjfarrell]

my guess...you could most likely
get by with...
Create Assembly
then use the....from the Generic Assemblies
Link Width and Slope Sub Assembly on the left and right
and a Link Slope to Surface for your daylighting attached to them...if all you are after is a top surface...
create the corridor, assign the target surface for the slope object...
then on the surfaces tab create your corridor surface form the top point codes...

and have a nice day!

[drizzt]

I like the create feature line from alignment tool, especially if I can assign the profile I drew over the existing profile.

If I create assembly, will I be able to dictate where roadside ditches begin and end?

[mjfarrell]

I like the create feature line from alignment tool, especially if I can assign the profile I drew over the existing profile.

If I create assembly, will I be able to dictate where roadside ditches begin and end?

yes...only you will want to use...a different sub assembly...I think it's the Basic Daylight Standard assembly...

This subassembly creates corridor-side daylighting links with user-defined slope configurations, such as flat, medium, and maximum slopes for cut and fill situations.

This subassembly creates either a v-shaped or flat- bottom ditch in cut situations, and includes an option to include guardrail widening for steep fill conditions.

or you may find that using TWO or more assemblies...one without any ditches for where there are none....
and a second assembly that would be used in corridor regions where there would be ditches (left and right)
or variations of, full section to daylight, full section with no ditches, full section ditch left, full section ditch right these last two could even be half section assemblies...and then the whole family gets added in to the corridor in regions  (station ranges) where each applies along the baseline (centerline alignment)


it provides back and fore slope settings, as well as guard rails...etc...CAUTION read the help file for this assembly carefully there are a LOT of parameters!

[mjfarrell]

or create the basic corridor....and THEN use grading objects, created along the corridor feature lines to model the ditches, and side slope conditions.

[drizzt]

Thanks.. I will give this a shot.