/usr/lib/perl5/PDL/Graphics/TriD/ is in pdl 1:2.007-2build1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/perl5/PDL/Graphics/TriD/ArcBall.pm
/usr/lib/perl5/PDL/Graphics/TriD/ButtonControl.pm
/usr/lib/perl5/PDL/Graphics/TriD/Contours.pm
/usr/lib/perl5/PDL/Graphics/TriD/Control3D.pm
/usr/lib/perl5/PDL/Graphics/TriD/GL.pm
/usr/lib/perl5/PDL/Graphics/TriD/GoBoard.pm
/usr/lib/perl5/PDL/Graphics/TriD/Graph.pm
/usr/lib/perl5/PDL/Graphics/TriD/Image.pm
/usr/lib/perl5/PDL/Graphics/TriD/Labels.pm
/usr/lib/perl5/PDL/Graphics/TriD/Lines.pm
/usr/lib/perl5/PDL/Graphics/TriD/Logo.pm
/usr/lib/perl5/PDL/Graphics/TriD/MathGraph.pm
/usr/lib/perl5/PDL/Graphics/TriD/Mesh.pm
/usr/lib/perl5/PDL/Graphics/TriD/OOGL.pm
/usr/lib/perl5/PDL/Graphics/TriD/Object.pm
/usr/lib/perl5/PDL/Graphics/TriD/Objects.pm
/usr/lib/perl5/PDL/Graphics/TriD/Polygonize.pm
/usr/lib/perl5/PDL/Graphics/TriD/Quaternion.pm
/usr/lib/perl5/PDL/Graphics/TriD/Rout.pm
/usr/lib/perl5/PDL/Graphics/TriD/SimpleScaler.pm
/usr/lib/perl5/PDL/Graphics/TriD/Surface.pm
/usr/lib/perl5/PDL/Graphics/TriD/TextObjects.pm
/usr/lib/perl5/PDL/Graphics/TriD/VRML.pm
/usr/lib/perl5/PDL/Graphics/TriD/ViewPort.pm
/usr/lib/perl5/PDL/Graphics/TriD/Window.pm