問80
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3D プリンタの特徴として, 適切なものはどれか。
平成31年度 春期 ITパスポート試験 問80
This question's explanation and your answers so far.
解説
問 80
Incorrectア
“Printing an image with a 3D effect onto a flat surface” refers to flat printing such as lenticular printing, which looks three-dimensional depending on the viewing angle; this differs from a 3D printer, which actually creates a solid object.
- イ
正解 A 3D printer is a device that builds an actual three-dimensional object by gradually stacking (layering) materials such as resin, based on three-dimensional data (the shape information of a solid) created with CAD or similar tools. Choice イ, “It forms a three-dimensional object using three-dimensional data,” correctly expresses exactly this characteristic, so it is the correct answer.
Incorrectウ
“Printing an image onto a curved surface or the like of a three-dimensional object” describes pad printing (curved-surface printing), which prints a pattern onto the surface of an existing solid object; this differs from a 3D printer, which forms the object itself.
Incorrectエ
“Displaying a three-dimensional image in space by means of a laser” describes technologies that show a three-dimensional image using light, such as holograms or 3D displays; this differs from a 3D printer, which makes a real object by layering materials.
ここがポイント
- A 3D printer is a device that forms a solid object by layering materials based on three-dimensional data (actually creating a physical solid object is its essence).
- Distinguish that things which “display a three-dimensional image” or “print an image onto a flat or curved surface” are not the shaping of a real object, and are therefore not 3D printers.
用語