Difference in test and how the template actually works

Hello!

This problem occurs very often. Typically when I use "project to surface".

 

If I turn of my control points of cant and alignment, the template goes down, on the level of the wrong working element

I assume that the template is placed from the origin point, when the control points are turned off.

If I place the Origin point the template basically will work OK (from cant there will be some glitches) . But for some reason i cant modify this point. When i set origin somewhere else, and save the template, in the next opening the origin point is on the old place!

---

Is there a cure for this or i need to stop using project to surface :D

Greetings,

A.M.

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  • I have managed to change the origin point but the problem persist.
    --
    I saw that the template is located by its coordinate system:
    http://prntscr.com/ck428t
    But how I can place a point in exactly 0,0 of this coordinates ?

    (BRT V08.11.07.685, on MS, SS 2)

  • Hi Aleksandar,
    I am not sure but it looks like there is a (usual) misunderstanding about the cyan square. It is not the origin of the model but the dynamic origin (a kind of user coordinate system origin). It is used when typing value to place a point in the dynamic settings dialog. You've got a list box with, XY, DL, HS, OL, ... OL and OS are from dynamic origin.
    To change the origin of the model, you must right click on the point you want to be 0,0 and choose "Change Template Origin"



  • OK, now i know what the cyan square does.
    ---
    Yes I need to avoid moving up.
    ---
    I have more hints to the problem:
    If I haven't point controls for the alignment and the cant. The template is placed in the alignment, from the 0,0 coordinates of the template.

    I will try to explain more clear.
    In the template, there is some coordinate system. I don't and I can't use it...
    The roadway uses this center of coordinate system to place the template as some initial approach.

    But when i move my alignment points, and set cant. Some points that use vector offset and project to surface stay there, on the old place of this points.

    If you want i can send some .itl to try itself?

    (BRT V08.11.07.685, on MS, SS 2)

  • The template is using a "relative" coordinate system. It is a "local" system where the 0,0 is the origin
    The 0,0 of the template is placed a the corridor control line location (chainage where the template is evaluated), X is the bearing of the cross section where the template is placed and Y is the Z value.
    If all points are green it means they are not constrained and stay at the same relative position from the 0,0
    Whatever you are doing in the roadway designer, the 0,0 will be the point on the corridor control line.
    Introducing constraints in the template will force points to move following the constraints.
    Points not constrained will remain at the same relative position from the 0,0 which is again the corridor control line.
    You can share your itl if you wish



  • Hello, jpln!
    Thank you for this clarification!

    Usually in my templates i have some green points (the axis of the track, left rail, right rail and center cant point). No matter where they are in the template. In the roadway they are constrained horizontal, vertical and cant from some alignment. If I use only fixed controls this kind of placement is perfect.

    But when i use project to surface there apparently is a problem.
    ---
    Even if I use the 0,0 of the template as coordinates of my green axis point there is still a problem.

    If my backbone stays fixed to the alignment its OK. But in some cases the cant affects the width of main bed. And the project to surface controlled points, relative to main bed point, become solved incorrectly.


    Have you ever faced this problem, and how did you overcome it?
    ---
    Does this problem persists in the new versions, or the work of roadway was revised to the ground?

    (BRT V08.11.07.685, on MS, SS 2)

  • It requires some more investigation about what is happening. It needs some data to analyze what is going wrong.



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