To create a projection point of an element on a line, you can use the Projection Point command.
Multi-select the elements you want to project onto the
line.
To multi-select several elements you have two possibilities. Either:
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Click Projection Point
in the Profile toolbar (Point sub-toolbar).
Select the line onto which the element first selected
will be projected and on which projection points will be created.
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The projection points automatically appear on
the line, as well as construction lines.
The points that are projected are perpendicular to the element
last selected provided this element is a line. Note that both
the selected points and the projected points are associative
with the construction lines that are also created. A construction
line is created between the original points and the projected
ones.
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