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Change slope on linestring

  • 1.  Change slope on linestring

    Posted 07-22-2024 08:38
    Hello 
    I have made a line string with several points. I have changed the height at the start and end point.
    I am looking for a method to distribute the fall between the other points on the line, so that the fall is the same all the way. Hope you understand. I use Trimble business center version 5.81.



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    Benjamin Bjørn Andersen
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  • 2.  RE: Change slope on linestring

    Posted 07-22-2024 15:50

    Edit the linestring and change the elevation of the intermediate points to "?".

    A ? forces TBC to interpolate between known elevations, or extrapolate if it's at the end of the line.

    If it's a line with a lot of nodes you might want to use the "change elevation" command to set the whole line to "undefined" which means "?". And then just change start and end of the line to valid elevations.



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    Ronny Schneider
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  • 3.  RE: Change slope on linestring

    Posted 07-23-2024 06:26

    add to Ronny's post.  add points to the ends which should pick up on the elevation from both ends of the line.  Do a change elevation to the line "undefined".  Then it will be use the command "Elevate Line" by using the point option.  The line should then pick up the elevations from the points at each end.  



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    Francisco Guerrero
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  • 4.  RE: Change slope on linestring

    Posted 07-25-2024 00:44

    Also, another trick that just popped to mind.

    The following only works with straight line segments.

    If you set one node with an elevation and then type a percent value i.e. "10%" into the elevation field for the next node it will compute the correct elevation for you, dependent on the length of that straight segment. Can be handy for drainage linework.



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    Ronny Schneider
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