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PointElement[{{i1},…,{in}}]

represents n point elements ek with incidents {ik}.

PointElement[{e1,…,en},{m1,…,mn}]

represents n point elements ek and n integer markers mk.

更多信息和选项
Details and Options Details and Options
范例  
基本范例  
Possible Issues  
参见
技术笔记
相关指南
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PointElement

PointElement[{{i1},…,{in}}]

represents n point elements ek with incidents {ik}.

PointElement[{e1,…,en},{m1,…,mn}]

represents n point elements ek and n integer markers mk.

更多信息和选项

  • PointElement is used to represent point elements in ElementMesh.
  • PointElement can be used as an input to ToElementMesh or ToBoundaryMesh.
  • Incidents ik are integers that index an array of spatial coordinates. The coordinate referenced by ek={ik} is the node of the k^(th) point.
  • A PointElement has always exactly one incident.

范例

打开所有单元 关闭所有单元

基本范例  (1)

Load the package:

Create a PointElement with two points:

Possible Issues  (4)

The incidents must be lists of integers:

The number of markers must match the number of incidents:

Markers must be a vector of integers:

When possible, noninteger markers will be converted to integers:

Wolfram Research (2014)，PointElement，Wolfram 语言函数，https://reference.wolfram.com/language/FEMDocumentation/ref/PointElement.html.

文本

Wolfram Research (2014)，PointElement，Wolfram 语言函数，https://reference.wolfram.com/language/FEMDocumentation/ref/PointElement.html.

CMS

Wolfram 语言. 2014. "PointElement." Wolfram 语言与系统参考资料中心. Wolfram Research. https://reference.wolfram.com/language/FEMDocumentation/ref/PointElement.html.

APA

Wolfram 语言. (2014). PointElement. Wolfram 语言与系统参考资料中心. 追溯自 https://reference.wolfram.com/language/FEMDocumentation/ref/PointElement.html 年

BibTeX

@misc{reference.wolfram_2025_pointelement, author="Wolfram Research", title="{PointElement}", year="2014", howpublished="\url{https://reference.wolfram.com/language/FEMDocumentation/ref/PointElement.html}", note=[Accessed: 14-April-2026]}

BibLaTeX

@online{reference.wolfram_2025_pointelement, organization={Wolfram Research}, title={PointElement}, year={2014}, url={https://reference.wolfram.com/language/FEMDocumentation/ref/PointElement.html}, note=[Accessed: 14-April-2026]}