Snap points to line

User Q & A (Post Here)
1

Is there a way to snap multiple points perpendicularly to a line. I’m sure there used to be a command in older versions of TBC that did this?

2

Do you mean that you want to pull all the points onto a line based on their distance along the line - Linestring By Station command does this in our Toolbox

If this is not what you want let me know and I can try something else

Alan

Alan

3

Hi Alan

I did look at that command but as far as I can see it will make a new string from the points?

What I have is the following. I did a feature survey yesterday picking up sample sections of rail sleepers to determine the sleeper types and spacings. It was a best guess situation in the field as to the centreline of the rail so the surveyed points are probably within 50mm of the rail alignment. Since coming back to the office, I have got the alignments for the rail so I would like to take these points and move them perpendicularly onto the alignment to get a better measurement of the spacing.

Hope that makes sense?

Cheers

Bruce

4

Send me the fiile Bruce - i think linestring by station will do what you want - it will use the path of the rail and pull the points onto the line perp as you want - it computes adjusted points on a layer and will then also join the new dots as well - you can delete the new line if you dont need it. I can do a video for you early next week - i do this for beach profile work where they have a design beCh profile line that they plot every quarter but they measure a line close but not absolutely that line in the field so we have to pull the points onto the line and then join them in station order up the beach which is the same as you are doing here only for a rail.

Alan

5

Hi Alan

Thanks for that. Had a look at that one and it did as you said so it’s all sorted… Would it possibly be an option on a future update to just move the original points and not create new points?

Regards

6

I am sure it is possible to do that, main reason we did it the way we did is so that you have your original data as a check and fall back should you need it.

When we open the command up again, I will have that looked at as an option

Alan