Hi all
I have two questions regarding the Alignments To Profile Command, which I was hoping someone could shed some light on.
Question 1
I have created a profile to display the exiting profile of the left hand rail.
I use the command Alignment to Profile to project the left hand rail onto the profile.
I have set the interval to 50m as show below:-
I then have clicked on the vertical profile and BRT displayed the handles of the profile (shown in little blue squares).
I then drew vertical lines from the handle locations down to the lowest elevation of the profile and then measured the horizontal distance between these lines as shown below:-
I was expecting the horizontal distance to be exactly 50m which is what I set as my interval in the Alignments to Profile menu but it is not exactly 50m throughout it varies and I was wondering if anyone knew why?
Question 2
The second question I have is this.
I have designed a horizontal centre line for TRK1 and stationed it appropriately.
I have then created a profile and designed the vertical alignment, below is a picture of the design vertical profile.
I started the design vertical by snapping to the first regression on the left side of the profile and then snapped to the last regression point on the right side of the profile to end the vertical design as shown in this clip below:-
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Now if I delete all the regression points from this profile window, go to Alignments to Profile and then project the existing profile for TRK1 and then project the Design profile for TRK1 (which I have just designed) at an interval of 1m for example I notice that the start of the existing profile and the start of the design profile do not start at the same point but are offset, the same applies to the end of the profiles, below is a video clip of what I am referring to:-
Does anyone know why the start of the existing and design vertical profiles and the end of the existing and design vertical profiles are off set?
Thank you.