Site Modeler - modify vertical alignment

John, can you elaborate on which slopes you want to modify?

The short answer is yes, you can modify the profile.  The best method depends on how you defined the profile to begin with.  If you defined a profile in cogo and used cogo chain and profile in comp section then just edit the profile and update the comp section.

If you defined profile from a draped site element (my preferred method) then use the edit profile tools are probably best. (Modeler > Object > Edit Profile)

Hi Robert:

I want to modify the slope along the centerline for part of the road (not the slope from the centerline to the edge of pavement).  I created a profle from a draped site element, then used the vertical component tools to create the proposed vertical alignment.  After the proposed profile was created, I used Composite Section to contour the road.  Now I want to revise the slopes in part of the profile, but don't see a way to do it.   Ideally, I want to get the original profile lines and curves back to adjust them, then re-create the proposed profile.

 Also, why can't I find any information in Help on the composite section tool?  I created edge of road elements and successfully contoured the road, but I want to add additional contouring to elements beyond that, but can't make it work.

John

Seems like a lot of the dialogs are not yet hooked up to the F1 help capability...

You can open it directly however: geopak_modeler.chm

Then go to  Command Reference > Tools > Composite Section.

HTH

I did this.  The link doesn't open anything.

John

Perhaps during the install the 'help files' toggle was turned off?   It should be a ~ 1.7Mb chm file in the Documentation folder.  I'll try to attach it here zipped...

 

 

Thanks, anyway, but this file was installed.  Under Main Menu>Tools Menu, the Composite Section option isn't blue, llike the other tool options, and nothing happens when I click on it.  Same under Main Menu>Tool Boxes Menu Selection>Tools.  I checked another workstation, and it's the same, no help for composite section in the XM installation.  I have V8i installed, and there is no help for the tool there, either.  We have a 2004 installation and the help information is included there, but I don't know if any changes were made to the tool.

Here's what I'm trying to do:  I created a road object and succeeded in contouring it from the centerline to the edge of road by drawing in the edge of road elements and using the Define>Element Type>Element option and setting the maximum search distance to a value slightly larger than 1/2 the road width.  I want to add additional elements outside the road edge that reference the road edge element (to either slope from or offset a specific z-value from that element ).  However, regardless of the slope or offset settings, "Radial to" choice or max. search distance, I get errors.  How can I do this?

 John

Hi John:  I have tested the help files and they are working properly here in XM and V8i.  You should log a support call to try to diagnose why your installations are not shoing the help files.

As far as comp section, maybe these tips will help:

• You have the edge of pavement working properly sounds like.  Now you want to add other elements to the comp section, now you want to add others, like a shoulder perhaps.
• Make a new entry for shoulder just like you did for edge of pavement.
• The search distance is always measured fromt he centerline except for a table entry.  So if the edge of pavement is 12 feet from center and you have a 10 foot shoulder then the edge search will be at least 12.1 and shoulder search will be at least 22.1 (not 10.1)
• Set the slope to be the slope from edge of pavement to edge of shoulder (say 4%)
• Set the radial to option to be "adjacent" and the slope is calculated from the edge of pavement.  If you set it to primary then the 4% will apply from centerline to edge of shoulder.
• And of course, change the searchsylbology to match the edge of shoulder.
• Tables can be useful for computing constant things such as curb and gutter.
  •  
    • The table connects to the item immedietely previous in the list.  So if you have an edge of pavement element search then a table, the table connects to the edge of pavement
    • All entries for offset distance and hieght are measured from the element to which the table is attached, so the gutter, top of curb and back of curb are all measured from the edge of pavement in this example.

 These are the basic.  Hope it helps

 

Hi John:  I have tested the help files and they are working properly here in XM and V8i.  You should log a support call to try to diagnose why your installations are not shoing the help files.

As far as comp section, maybe these tips will help:

• You have the edge of pavement working properly sounds like.  Now you want to add other elements to the comp section, now you want to add others, like a shoulder perhaps.
• Make a new entry for shoulder just like you did for edge of pavement.
• The search distance is always measured fromt he centerline except for a table entry.  So if the edge of pavement is 12 feet from center and you have a 10 foot shoulder then the edge search will be at least 12.1 and shoulder search will be at least 22.1 (not 10.1)
• Set the slope to be the slope from edge of pavement to edge of shoulder (say 4%)
• Set the radial to option to be "adjacent" and the slope is calculated from the edge of pavement.  If you set it to primary then the 4% will apply from centerline to edge of shoulder.
• And of course, change the searchsylbology to match the edge of shoulder.
• Tables can be useful for computing constant things such as curb and gutter.
  •  
    • The table connects to the item immedietely previous in the list.  So if you have an edge of pavement element search then a table, the table connects to the edge of pavement
    • All entries for offset distance and hieght are measured from the element to which the table is attached, so the gutter, top of curb and back of curb are all measured from the edge of pavement in this example.

 These are the basic.  Hope it helps

 

Still can't get it to work.  I am logging a support ticket and will include my dgn and gsf, along with the chm issue.

John

Robert - attached is a screen shot of my composite section setup.  I've tried a wide variety of settings, and the ones shown in the image conform to your suggestion.  The road edge is 15 ft from the centerline, and the other 2 lines are 1 foot farther away.  The error I get is "Error projecting segment from element 27125".

John

John

 

Feel free to send me your Dgn... Gsf, and .sec file

if they are over 3 megs send seperately or email me and I can send you the ftp site link.

 

Regards

 

Mike Barkasi

mike.barkasi@bentley.com

Bentley Civil / Professional Services

I wonder if the error you are receiving is due to the road slope not being able to find a daylighting target on your base object. This can happen if the base object (usually the existing ground) does not cover the area where the road is looking for a daylight solution. A quick check is to turn off the slope options for your road object and see if the tool processes. If your comp section is set up to create a slope element that targets an object that can be a culprit as well.

Neil - The road contours as expected to the edge of the road and the boundaries of the road object are well within the base object.   I'm not creating a slope element.

John