Increasing length of an arrow in 3D plot

Asked Dec 04 '16 at 09:02

Active Dec 04 '16 at 10:30

Viewed 28 times

Initially, I have:

a = Plot3D[x^2, {x, 0, 2}, {y, 0, 2}, 
PlotRange -> {{0, 2}, {0, 2}, {0, 5}}];
Show[a, Graphics3D[Arrow[{{0, 1, 0}, {0, 1, 4}}]]]

To increase the length of the arrow, I change the commands into

a = Plot3D[x^2, {x, 0, 2}, {y, 0, 2}, 
PlotRange -> {{0, 2}, {0, 2}, {0, 5}}];
Show[a, Graphics3D[Arrow[{{0, 1, 0}, {0, 1, 10}}]]]

but the arrowhead disappear. How to make the arrowhead visible without changing the range of the plot?

edited Dec 04 '16 at 10:30

asked Dec 04 '16 at 09:02

ssa

Using PlotRange -> All in show. See the linked answer for why this is necessary. – Szabolcs Dec 04 '16 at 10:08
Can we do it without changing the PlotRange @Szabolcs? – ssa Dec 04 '16 at 12:03
No, because if the PlotRange is smaller than the arrow, then not all of the arrow will show. – Szabolcs Dec 04 '16 at 12:09

0 Answers0