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"GravityEmbedding" （图的布局方法）

  • GraphLayout 的顶点布局.
  • 使用重力嵌入来布置图的顶点.

详细信息和子选项

  • 重力嵌入是一种图形绘制技术，用于放置图的顶点，以便当每个顶点具有电荷和质量并且每条边对应于弹簧时，使机械能、电能和重力能最小化.
  • 重力嵌入通常用于布置具有根顶点的大型复图.
  • 顶点可以嵌入到 中.
  • The following model parameters can be given:
  • "RepulsiveForcePower"repulsive force constant
    "SpringConstant"spring constant
  • The following graph parameters can be given:
  • "RootVertex" root vertex
  • Possible settings to control the energy minimization process include:
  • "EnergyControl"how the energy function is controlled during minimization
    "InferentialDistance"cutoff distance for inference from faraway vertices
    "MaxIterations"maximum number of iterations
    "RandomSeed"seed for the random generator for initial vertex placement
    "StepControl"how step lengths are modified during energy minimization
    "StepLength"initial step length used in moving the vertices
    "Tolerance"tolerance used in terminating the process
  • Possible settings to control the layout include:
  • "Rotation"Automaticlayout rotation

范例

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基本范例  (1)

使用重力嵌入放置顶点：

选项  (9)

"RootVertex"  (1)

使用选项 "RootVertex"v 设置根顶点：

"EnergyControl"  (1)

Use the option "EnergyControl"e to specify limitations on the total energy of the system during minimization:

"InferentialDistance"  (1)

Use "InferentialDistance"d to specify a cutoff distance beyond which the interaction between vertices is assumed to be nonexistent:

"MaxIteration"  (1)

Use "MaxIteration"it to specify a maximum number of iterations to be used in attempting to minimize the energy:

"RandomSeed"  (1)

Use "RandomSeed"int to specify a seed for the random number generator that computes the initial vertex placement:

"StepControl"  (1)

Use "StepControl"method to define how step length is modified during energy minimization:

"StepLength"  (1)

Use "StepLength"r to specify the initial step length used in moving the vertices around:

"Tolerance"  (1)

Use "Tolerance"r to specify the tolerance used in terminating the energy minimization process:

"Rotation"  (1)

Use "Rotation"r to rotate the layout: