Recent changes to 2867: hidden3d not working as expectedhttps://sourceforge.net/p/gnuplot/bugs/2867/2026-04-14T23:28:00.060000ZRecent changes to 2867: hidden3d not working as expected#2867 hidden3d not working as expected2026-04-14T23:28:00.060000Z2026-04-14T23:28:00.060000ZIgor Brayhttps://sourceforge.net/u/igorbray/https://sourceforge.netda9ab40ef1dc2172283e7e126a508b5a10331d53<div class="markdown_content"><ul>
<li><strong>Group</strong>: --> </li>
<li><strong>Priority</strong>: --> </li>
</ul></div>#2867 hidden3d not working as expected2026-04-14T23:21:17.838000Z2026-04-14T23:21:17.838000ZIgor Brayhttps://sourceforge.net/u/igorbray/https://sourceforge.net94680b9468831af147ae716c2b7e09b5e7240d10<div class="markdown_content"><p>Problem fixed. It seems with "set hidden3d" it is important to add "u 1:2:3" to the splot command:<br/>
gnuplot> set multiplot layout 1,2 <br/>
multiplot> sp 'theta_1/grid2/splot.111' w l ls 1 <br/>
multiplot> set hidden3d <br/>
multiplot> sp 'theta_1/grid2/splot.111' u 1:2:3 w l ls 1</p></div>#2867 hidden3d not working as expected2026-04-14T16:32:16.365000Z2026-04-14T16:32:16.365000ZEthan Merritthttps://sourceforge.net/u/sfeam/https://sourceforge.netbfcc511e2ae156b89970dccc9d22fff7f7ed0870<div class="markdown_content"><p>Please attach the data file also. I is hard to reproduce a data plot without the data.</p></div>hidden3d not working as expected2026-04-14T12:47:19.943000Z2026-04-14T12:47:19.943000ZAnonymoushttps://sourceforge.net/u/userid-None/https://sourceforge.net6b8215d44fa72e385a43d26478368a21fb11c8e4<div class="markdown_content"><p>Using the following commands the attached screenshot is generated:<br/>
gnuplot> set multiplot layout 1,2<br/>
multiplot> sp 'theta_1/grid2/splot.111' w l ls 1<br/>
multiplot> set hidden3d<br/>
multiplot> sp 'theta_1/grid2/splot.111' w l ls 1<br/>
multiplot> unset multiplot</p>
<p>The problem is that the image on the right has lost color, and does not have different colors for the top and bottom parts of the surface. Played with "offset <n>" options with no luck. Interestingly, the image on the right takes around 10 times longer to generate. Have tested this on three different Linux environments using gnuplot 5.2, 5.4 and 6.0, all of which yield the same output. I still have the output from gnuplot 4.6 which worked perfectly.</n></p></div>hidden3d not working as expected2026-04-14T12:47:19.943000Z2026-04-14T12:47:19.943000ZAnonymoushttps://sourceforge.net/u/userid-None/https://sourceforge.net0fb91a22b0c5bd06981f24372cf78594e826235a<div class="markdown_content"><p>Ticket 2867 has been modified: hidden3d not working as expected<br/>
Edited By: Igor Bray (igorbray)</p></div>