Hi.
I have a model with regression lines that I reference in to my design model file. I can use regression lines from the reference to use the tool Calculate horizontal slew and see the slew in design model but I cant´t use it for Calculate vertical slew.My regression lines in the regression model are created from survey points.
How can I validate or see the vertical slew in my design model?
How can I do horizontal and vertical regression reports with one design model and one regression line model?
Kind regards
Patrik Hadin Sweco
I would say that even there are some situations where it looks to work, working with regression line in a reference is not something recommended. We may prevent users to do that unless we fully support this workflow.
So for vertical regression it is also a step beyond and and we can say that it is not a supported workflow.
I´ll try to explain what I´m after. :-)
In projects were we have existing tracks we are required to validate and show the horizontal and vertical slew from the survey points (regression points) to the new track geometry design.
In Power RailTrack the workflow for a track usally is that we make existing geometry with the regression points. We then copy that geometry with all the regression points in it and make improvments to the geometry. We can then easily create horizontal and vertical slew reports and show the slew in profile drawings for the new geometry as required from or customers safety control.
In projects were we make several options of track designs we can easily copy geometies with the points we need between new geometries in the alg-file to show the slew in reports and profile drawings.
In OpenRail this seems to work for horizontal geometries. The new geometry I´ve ceated doesn´t need to have a connection to the regression line. I can create horizontal slew reports with the regession line as a reference. I must be able to do the same for vertical slew reports and to be able to show it in profile drawings.
It seems like a time consuming workflow if I always have to create new geometries with regression lines in my design model when I´m creating several models with various track design options. I saw that when you create a geometry from a regression line it´s called regression geometry anda I guess that´s what you need to do get the vertical regression line in your profile view.
Our cusomer also manages existing geometries as XML-files that we need to validate to survey points (regression points).
So what I´m after is how can I show the slew from survey points to my new geometry design (horizontal and vertical) without having the regression line (regression points) connected as a regression geometry?
OpenRail should improve working on multiple alternatives based on same regression points.
In Rail Track regression points were copied into the alignment so that you can have multiple alignments with regression points stored in each alignment.
In OpenRail you have a regression line, and associated points, that is "referenced" by the geometry. When you calculate slew it does change the value of the regression points. So with a single regression line it is not easy to simultaneously display different solutions to compare results. You must duplicate the regression line if you want to keep all in the same file.
As said, something we shall improve.
The initial question was about working through a reference which is not recommended/possible.
But if the regression line is created in the design file than you cant do what you want to do.
You can always calculate slew from any piece of geometry, even imported by XML, to get slew, reports and lift.
I´m still confused on how I should set up the workflow to be able to compare my survey points to my final vertical geometry design. We have a couple of projects were we need to validate or final design to survey points.
The workflow is:
- In a single design file: