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I am interested in drawing a labelled dashed line through points p1 and p2 with Graphics3D. The code doing this job is the following:

p1 = {0, 0, 0};
p2 = {0, 1, 0};
Graphics3D[{Text[Style["DUMA", 30], (p1 + p2)/2], {Dashed, Line[{p1, p2}]}}, Boxed -> False]

This code provides the following output:

enter image description here

However, when I rotate the output image (highlighted in orange box in the above figure) by 90 degrees clockwise, I receive the following result:

enter image description here

Could you please help me how to modify my code to rotate the label simultaneously with the output image. The result that I expect is as follows:

enter image description here

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  • $\begingroup$ Related. $\endgroup$
    – Rohit Namjoshi
    Nov 6, 2021 at 20:44
  • $\begingroup$ @RohitNamjoshi OK, but what is the answer to this question? $\endgroup$
    – TobiR
    Nov 6, 2021 at 20:52

1 Answer 1

Reset to default
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Edit

p1 = {0, 0, 0}; p2 = {0, 1, 0};
label = Rotate[Text[Style["DUMA", 100]], π/2];
vtc = {{0, 0}, {1, 0}, {1, 1}, {0, 1}};
center = Mean[{p1, p2}]; dir = .1 Normalize[p2 - p1]; normal = {1, 1, 
  1}; conormal = .05 Normalize@Cross[dir, normal]; frame = {conormal, 
  dir}; coords = {{center + {-1, -1} . frame, 
   center + {1, -1} . frame, center + {1, 1} . frame, 
   center + {-1, 1} . frame}}; Graphics3D[{{Dashed, Line[{p1, p2} ], 
   Red, Point[p2]}, {Texture[label], EdgeForm[Cyan], 
   Polygon[coords, VertexTextureCoordinates -> {vtc}]}}, 
 Boxed -> False, Lighting -> {{"Ambient", White}}]

enter image description here

Original

p1 = {0, 0, 0};
p2 = {0, 1, 0};
label = Text[Style["DUMA", 100]];
vtc = RotateLeft[{{0, 0}, {0, 1}, {1, 1}, {1, 0}}, 1];
center = Mean[{p1, p2}];
dir = .1 Normalize[p2 - p1];
normal = .1 Normalize@{1, -1, 1};
conormal = Cross[dir, normal];
coords = {{center + {-1, -1} . {dir, normal}, 
    center + {1, -1} . {dir, normal}, center + {1, 1} . {dir, normal},
     center + {-1, 1} . {dir, normal}}};
Graphics3D[{Dashed, 
  Line[{p1, p2}], {Texture[label], EdgeForm[Cyan], 
   Polygon[coords, VertexTextureCoordinates -> {vtc}]}}, 
 Boxed -> False, Lighting -> {{"Ambient", White}}]

enter image description here

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6
  • $\begingroup$ p1 = {0, 0, 0}; p2 = {0, 1, 0}; label = Text[Style["DUMA", 100]]; vtc = RotateLeft[{{0, 0}, {1, 0}, {1, 1}, {0, 1}}, 1]; center = Mean[{p1, p2}]; dir = .1 Normalize[p2 - p1]; normal = .1 Normalize@{1, -1, 1}; conormal = .05 Normalize@Cross[dir, normal]; frame = {conormal, dir}; coords = {{center + {-1, -1} . frame, center + {1, -1} . frame, center + {1, 1} . frame, center + {-1, 1} . frame}}; Graphics3D[{Dashed, Line[{p1, p2}], {Texture[label], EdgeForm[Cyan], Polygon[coords, VertexTextureCoordinates -> {vtc}]}}, Boxed -> False, Lighting -> {{"Ambient", White}}] $\endgroup$
    – cvgmt
    Nov 7, 2021 at 4:07
  • $\begingroup$ It is nice, thanks. The commands you posted below your answer provide "Duma" rotated in a strange way which is unreadable without changing the orientation of our head. ;) Can you give a solution which rotates the text by 180 degrees counterclockwise in this particular case and in general case, such that one can read the text without rotating her head? $\endgroup$
    – TobiR
    Nov 7, 2021 at 11:43
  • $\begingroup$ @TobiR set vtc = RotateLeft[{{0, 0}, {1, 0}, {1, 1}, {0, 1}}, 3]; instead of vtc = RotateLeft[{{0, 0}, {1, 0}, {1, 1}, {0, 1}}, 1]; $\endgroup$
    – cvgmt
    Nov 7, 2021 at 11:53
  • $\begingroup$ @cvgmnt After replacing the row you mentioned, I still can get line oritentations where "AMUD" (with "inverted" D) is shown instead of "DUMA". $\endgroup$
    – TobiR
    Nov 7, 2021 at 11:57
  • $\begingroup$ @TobiR See the updated. $\endgroup$
    – cvgmt
    Nov 7, 2021 at 12:14

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