Mercurial > octave
changeset 32044:31f7f5359ba2
quiver: Add scale factor and input validation BISTs (bug #39552)
* scripts/plot/draw/quiver.m: Add BISTs for too few inputs. Add BISTs to
verify single and multiple arrow quiver plots honor scaling factor.
| author | Nicholas R. Jankowski <jankowski.nicholas@gmail.com> |
|---|---|
| date | Thu, 20 Apr 2023 16:49:31 -0400 |
| parents | 9ef7e38d57b8 |
| children | 39700c1ea93e |
| files | scripts/plot/draw/quiver.m |
| diffstat | 1 files changed, 64 insertions(+), 0 deletions(-) [+] |
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--- a/scripts/plot/draw/quiver.m Thu Apr 20 11:32:11 2023 -0700 +++ b/scripts/plot/draw/quiver.m Thu Apr 20 16:49:31 2023 -0400 @@ -138,3 +138,67 @@ %! axis equal tight; %! hold on; plot (x,y,"r"); hold off; %! title ("quiver() with scaled arrows"); + + +%!test <*39552> # Check arrow length, scale factor adjustment, one arrow. +%! hf = figure ("visible", "off"); +%! hax = gca (); +%! unwind_protect +%! [x,y] = meshgrid (1:2); +%! u = [0 1; 2 3]; +%! v = [1 2; 3 4]; +%! numpts = numel (x); +%! sf = 0.5; +%! +%! ## Check single arrow. +%! h = quiver (hax, x(4), y(4), u(4), v(4), 1); +%! childxdata = get (get (h, "children"), "xdata"); +%! stemchild = find (cellfun (@numel, childxdata) == 3); +%! xendpoint = childxdata{stemchild}(2); +%! assert (xendpoint, x(4) + u(4), eps); +%! +%! h = quiver (hax, x(4), y(4), u(4), v(4), sf); +%! childxdata = get (get (h, "children"), "xdata"); +%! stemchild = find (cellfun (@numel, childxdata) == 3); +%! xendpoint = childxdata{stemchild}(2); +%! assert (xendpoint, x(4) + sf*u(4), eps); +%! +%! unwind_protect_cleanup +%! close (hf); +%! end_unwind_protect + +%!test <*39552> # Check arrow length, scale factor adjustment, multiple arrows. +%! hf = figure ("visible", "off"); +%! hax = gca (); +%! unwind_protect +%! [x,y] = meshgrid (1:2); +%! u = [0 1; 2 3]; +%! v = [1 2; 3 4]; +%! numpts = numel (x); +%! sf = 0.5; +%! +%! ## Check multiple arrows. +%! h = quiver (hax, x, y, u, v, 1); +%! childxdata = get (get (h, "children"), "xdata"); +%! stemchild = find (cellfun (@numel, childxdata) == 3*numpts); +%! xendpoint1 = childxdata{stemchild}(5); +%! xendpoint2 = childxdata{stemchild}(11); +%! assert (xendpoint1, x(2) + (sqrt(2)/10)*u(2), eps); +%! assert (xendpoint2, x(4) + (sqrt(2)/10)*u(4), eps); +%! +%! h = quiver (hax, x, y, u, v, sf); +%! childxdata = get (get (h, "children"), "xdata"); +%! stemchild = find (cellfun (@numel, childxdata) == 3*numpts); +%! xendpoint1 = childxdata{stemchild}(5); +%! xendpoint2 = childxdata{stemchild}(11); +%! assert (xendpoint1, x(2) + sf*(sqrt(2)/10)*u(2), eps); +%! assert (xendpoint2, x(4) + sf*(sqrt(2)/10)*u(4), eps); +%! +%! unwind_protect_cleanup +%! close (hf); +%! end_unwind_protect + +## Test input validation +%!error <Invalid call> quiver() +%!error <Invalid call> quiver(1) +