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Spy anchor does not affect magnified box #767

PhelypeOleinik opened this issue Nov 3, 2019 · 0 comments


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@PhelypeOleinik PhelypeOleinik commented Nov 3, 2019

The code:

    spy using outlines = {%
      magnification = 2,
      size = 3cm,
      connect spies,
      anchor = north, % <==
  \coordinate (top) at (3,5);
  \draw (0,0) sin (top) cos (6,0);
  \spy on (top.north) in node at (3,2);

where the spied on square doesn't match the magnified one. Notice that the in the top square the line touches the upper edge, but in the magnified square the line goes through the middle.

The code works correctly if I comment anchor = north. If I brute-force change the line:

path picture={\node[anchor=center,tikz@lib@reset@gs]{\nullfont%

to read:

    path picture={\node[anchor=south,tikz@lib@reset@gs]{\nullfont%

instead, then the output is correct (only when anchor = north, of course).

I'm guessing that the anchor option in that node should account for the anchor of the upper node as well.

@hmenke hmenke added the spy label Nov 3, 2019
@hmenke hmenke added this to the 3.1.5 milestone Nov 3, 2019
hmenke added a commit to hmenke/pgf that referenced this issue Nov 4, 2019
Does not cover all cases, but I don't think there is a proper solution
for that.  It also can't do angles or @auto anchor.
@hmenke hmenke added the closed-fixed label Nov 4, 2019
@hmenke hmenke closed this Nov 4, 2019
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