On Sun, 2011-07-24 at 01:37 +0200, Kai-Martin Knaak wrote:
> Peter Clifton wrote:
>
> > adding a feature for snapping to off-grid points along the body of a
> > track.
>
> Sounds good, but I don't quite understand the details. Where exactly
> are these points?
Try it and you will see ;)
Basically, when you're over the line, the snap code picks the nearest
grid point to where your mouse pointer is, then casts out from it in
vertical, horizontal and both 45 degree angles in between, until it hits
the line your mouse pointer is over.
Any of the intersections between the cast lines and the line you're over
will snap - the closest to your mouse pointer is choesen.
From the commit message:
commit 9e33678b20433f571c54009c704e75d114a3ea10
Author: Peter Clifton <pcjc2@xxxxxxxxx>
Date: Sat Jul 23 20:47:47 2011 +0100
crosshair.c: Snap to points along off-grid lines when drawing tracks
This should greatly easy making tidy layouts where some lines have
(perhaps by necessity) ended up off-grid.
This patch adds code to snap onto the center of a line. It finds
the nearest grid point to the cursor, then will allow snapping at
the intersections between the line in question and the lines of an
imaginary X and + centered on the nearest grid-point to the cursor.
This allows neat drawing of horizontal, vertical and 45 degree lines
which will land correctly on the existing line.
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