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CSGRegionQ[reg]

領域 reg が有効なCSGRegionオブジェクトのときはTrueを，それ以外のときはFalseを返す．

例題  
例  
スコープ  
特性と関係  
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CSGRegionQ

CSGRegionQ[reg]

領域 reg が有効なCSGRegionオブジェクトのときはTrueを，それ以外のときはFalseを返す．

例題

すべて開く すべて閉じる

例  (2)

2Dの有効なCSG領域：

Wolfram Language code: CSGRegion["Union", {Disk[], Rectangle[]}]
Wolfram Language code: CSGRegionQ[%]

3D：

Wolfram Language code: CSGRegion["Union", {Ball[], Cuboid[]}]
Wolfram Language code: CSGRegionQ[%]

スコープ  (3)

CSGRegionQはCSG領域の共通部分に使うことができる：

Wolfram Language code: CSGRegion["Intersection", {Ball[], Cuboid[]}]
Wolfram Language code: CSGRegionQ[%]

和集合：

Wolfram Language code: CSGRegion["Union", {Ball[], Cuboid[]}];
Wolfram Language code: CSGRegionQ[%]

差集合：

Wolfram Language code: CSGRegion["Difference", {Ball[], Cuboid[]}];
Wolfram Language code: CSGRegionQ[%]

CSGRegionQは1レベルのCSG領域に使うことができる：

Wolfram Language code: CSGRegion["Intersection", {Ball[], Cuboid[]}]
Wolfram Language code: CSGRegionQ[%]

ネストしたCSG領域：

Wolfram Language code: CSGRegion["Intersection", {Ball[], CSGRegion["Union", {Ball[], Cuboid[]}]}];
Wolfram Language code: CSGRegionQ[%]

3つ以上の領域の共通部分：

Wolfram Language code: CSGRegion["Intersection", {Ball[], Ball[], Cuboid[], Ball[]}];
Wolfram Language code: CSGRegionQ[%]

CSGRegionQは2DのCSG領域に使うことができる：

Wolfram Language code: CSGRegion["Intersection", {Disk[], Rectangle[]}]
Wolfram Language code: CSGRegionQ[%]

3D：

Wolfram Language code: CSGRegion["Intersection", {Ball[], Cuboid[]}];
Wolfram Language code: CSGRegionQ[%]

D：

Wolfram Language code: CSGRegion["Intersection", {Ball[{0, 0, 0, 0}], Ball[{1, 0, 1, 0}]}];
Wolfram Language code: CSGRegionQ[%]

特性と関係  (4)

CSGRegionQはRegionQの特殊ケースである：

Wolfram Language code: Subscript[ℛ, 1] = CSGRegion["Intersection", {Ball[], Cuboid[]}]; Subscript[ℛ, 2] = ConvexHullMesh[RandomReal[1, {10, 2}]];
Wolfram Language code: CSGRegionQ /@ {Subscript[ℛ, 1], Subscript[ℛ, 2]}
Wolfram Language code: RegionQ /@ {Subscript[ℛ, 1], Subscript[ℛ, 2]}

CSGRegionは常にBoundedRegionQである：

Wolfram Language code: ℛ = CSGRegion["Intersection", {Ball[], Cuboid[]}];
Wolfram Language code: {CSGRegionQ[ℛ], BoundedRegionQ[ℛ]}

CSGRegionは常にConstantRegionQである：

Wolfram Language code: ℛ = CSGRegion["Intersection", {Ball[], Cuboid[]}];
Wolfram Language code: {CSGRegionQ[ℛ], ConstantRegionQ[ℛ]}

CSGRegionは固体である：

Wolfram Language code: ℛ = CSGRegion["Intersection", {Ball[], Cuboid[]}];
Wolfram Language code: {CSGRegionQ[ℛ], SolidRegionQ[ℛ]}
Wolfram Research (2021), CSGRegionQ, Wolfram言語関数， https://reference.wolfram.com/language/ref/CSGRegionQ.html.

テキスト

Wolfram Research (2021), CSGRegionQ, Wolfram言語関数， https://reference.wolfram.com/language/ref/CSGRegionQ.html.

CMS

Wolfram Language. 2021. "CSGRegionQ." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/CSGRegionQ.html.

APA

Wolfram Language. (2021). CSGRegionQ. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/CSGRegionQ.html

BibTeX

@misc{reference.wolfram_2026_csgregionq, author="Wolfram Research", title="{CSGRegionQ}", year="2021", howpublished="\url{https://reference.wolfram.com/language/ref/CSGRegionQ.html}", note=[Accessed: 07-September-2026]}

BibLaTeX

@online{reference.wolfram_2026_csgregionq, organization={Wolfram Research}, title={CSGRegionQ}, year={2021}, url={https://reference.wolfram.com/language/ref/CSGRegionQ.html}, note=[Accessed: 07-September-2026]}