Trimble Business Center

I am creating Corridor template in TBC V5.0.

With the help of Mr Alan Sharp I have progressed somewhat.

I am looking at a solution for this specific challenge:

Please see attached file "Tie to Surface-1.pdf". I want the Daylight L Point to be at the Second or Last intersection of the Surface - not the first. Is it possible to do that.

When I was using Terramodel, I had this choice in the Properties tab of the "Shape" window. Is there something similar in TBC V5.0?

In the second case, ("Shortage of OGL.pdf" ), Slopes are not represented at all. I suppose this is because the daylight line is beyond the available limits of OGL.  I was expecting one of two things:

a) The OGL segment would extend to  chamfer with the slope line (as in Terramodel) OR

b) The conditional instructions would come into play as in TBC and a slope line to the "Fill Limit" would be drawn at a slope of between the recommended 1:6 and the minimum 1:3.

Both are not happening !!!

Could some one show me a way please.

Thanks.

Saif

We are in the process of making some improvements to the Sideslope Function of Corridors, and I have added this to the list of things we should look at, the next release already has some improved tools that would make this first (Last Intersection Case easier, however it is still possible to do it in the current release, however it does take some work. The enclosed video is a quick overview of how I would go about doing it

The second case that you present will also be easier in the next release, however it too is possible today - what I would do is one of the following

1) I would create a Surface Edge Breakline around my Original Ground Surface Model

2) I Would create an Offset Line at a distance far enough away from the current OG Edge to give me the extended OG that I required - this of course will be a "Guestimate" of the OG and until you go out and topo that, you won't have an accurate answer, however it will give you an approximation which may be good enough for purpose.

3) Add the Offset line to the OG Surface - this will make the OG Bigger and give you the Target Area for your sideslopes

If you dont want to make your OG Larger, then you need to use a steeper side slope in these areas to make it tie to existing - you can do that using Conditions if you need to, or you can use a Table for Side Slope and steepen it up in the areas where the side slope cannot be computed to make it work

You could also put a Connection between the Hinge Point and the OG End Point Left or Right to make the Sideslope fit to the limits of the OG

I hope that these suggestions help

Alan

Thanks for your response. The conditional instructions are already there.

If the end point of the slope is beyond the Fill edge line (left or right)

of the corridor, the slopes must automatically change (vary) to terminate

at the fill edge line. I am surprised why it is not happening only in some

stations. Where is the catch?

On Thu, 7 Mar 2019, 23:48 alan_sharp@trimble.com, <trimble@jiveon.com>

I am out on PTO till next Tuesday - I will look at this on my return and get you an answer on Weds - apologies for the delay

Alan

Sent from my iPhone

I was able to create some segments of Line Strings as necessary, Change

Elevation to SBDOGL, offset the same, OR Use the Line Strings + Change

Elevation and add to corridor surface and rebuild the surface to get a

corridor somewhat satisfactory (Not perfect !!).

When I tried to create a Edge Breakline and create an offset, the system

hanged repeatedly.

Thanks for all the help.

On Fri, Mar 8, 2019 at 9:02 PM alan_sharp@trimble.com <trimble@jiveon.com>

I will test that next week - thanks for the info

Sent from my iPhone

I have attached two files to show how the Condition instruction is applied

at one station and not at another.

Please take a look and let me know what is going wrong.

16-67 K DTM TBC (190304).vce

<https://drive.google.com/a/dbasons.com/file/d/1eOH5Cpya0DhY-RLN-AWpAAvJ0Otjndfd/view?usp=drive_web>

On Fri, Mar 8, 2019 at 9:02 PM alan_sharp@trimble.com <trimble@jiveon.com>

I created the Surface Edge Breakline OK and when I applied the Offset Line to it, the software looks like it is hanging because the software is unusable until the offset line calculations are completed - this appears to be taking way longer than it should and I am having the Development Team take a look - the challenge is when you have an internal angle and you offset any difference, when you have short line segments you get lines that cannot be offset and the calculations can take a while - the end results will never be perfect - especially on a boundary this size - you may be better finding the areas where you have insufficient Existing Ground and just offset an element of the Edge Breakline to give you increased width in that area

One thing that I found on the above issue was if you edit the Edge Breakline and delete the first node (it opens in the editor and if it shows "Start Coordinate" in the field that is titled "Current Segment" you can then tap the little icon below that to delete this segment - this will place a small gap between the first and last points on the Edge Breakline and then this calculation will work much faster - apparently because the Edge Breakline is a closed line, when we offset the line and have to start cutting back segments (because the offset line shortens segments or removes them completely, because we are trying to keep the line closed that slows this calculation down when the edge breakline has this many nodes in it - putting a small break in the line by deleting the first segment stops the line from being closed and allows the calculation to run much faster (the team has a note of the issue now and will see if they can improve this for a future release - in the short term this is a work around - when I offset the line it now takes a few seconds - without the Gap - I have no way of telling how long I would have had to wait for the software to complete the calculations without letting it run until it came back - this is a quick solution for today in the current release at least

The two reference lines (Fill Edge RHS and Fill Edge LHS) that you have added to your Corridor Model are only 3D in certain areas and then they are 2D (No Elevation) elsewhere - in the areas where they are 2D you have them referenced in your Template Instructions to an instruction that uses Offset - Elevation to create e.f. Point 9 in the Template (Offset of -0.474 and Elevation Diff of 0.00) - this can only compute when the Reference Line is 3D not where it is 2D. You can see the places in the Template where it is only 2D as it is represented by a Vertical Line at the Offset location, whereas when it is 3D it is represented as a 3D Node. Since Node 9 is missing in 3D, when you then use it to create other nodes - e.g. the Slope Slope instruction to create point 10 (TestPt Ditch Outer) - it cannot compute that in the areas where the reference line is only 2D

So I took those two reference lines and used the Change Elevation Command on them and elevated them using the OG Surface - then they are 3D all along the highway where you have OG and now your template appears to work better.

I attach my version of the project with the above changes - let me know if you need more help

I saw a question this am on the Plotting of Sections - I have added cross sections to this project that cover the first 4000m at 100' intervals - you can change the range covered and rebuild as necessary using the settings in Cross Section Locations - they look OK to me now based on the model changes I made above but I have not checked every section

I hope that this helps - let me know if you still have questions

Thanks

Alan

Thanks a lot.

Will work through your suggestions and await detailed feedback.

On Mon, Mar 18, 2019 at 9:03 PM alan_sharp@trimble.com <trimble@jiveon.com>

What "Detailed Feedback" do I need to add - I think I answered your

questions yesterday - is there something I missed?

Alan

On Mon, Mar 18, 2019 at 10:47 PM seshagiri@dbasons.com <trimble@jiveon.com>