> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ntop.com/llms.txt
> Use this file to discover all available pages before exploring further.

# FE Shell Mesh from CAD

<CardGroup cols={2}>
  <Card title="CAD Body, Scalar Field, Geometric Order Enum, Scalar, Scalar, Scalar, Scalar, Scalar, Scalar, Preserved faces, Preserved nodes, 5.28.0" href="#cad-body-scalar-field-geometric-order-enum-scalar-scalar-scalar-scalar-scalar-scalar-preserved-faces-preserved-nodes-5280" />

  <Card title="CAD Body, Scalar Field, Surface Mesh Shape Enum, Geometric Order Enum, Scalar, Scalar, Scalar" href="#cad-body-scalar-field-surface-mesh-shape-enum-geometric-order-enum-scalar-scalar-scalar" />

  <Card title="CAD Body, Scalar Field, Surface Mesh Shape Enum, Geometric Order Enum, Scalar, Scalar, Scalar, 1.1.0" href="#cad-body-scalar-field-surface-mesh-shape-enum-geometric-order-enum-scalar-scalar-scalar-110" />

  <Card title="CAD Body, Scalar Field, Surface Mesh Shape Enum, Geometric Order Enum, Scalar, Scalar, Scalar, 1.2.0" href="#cad-body-scalar-field-surface-mesh-shape-enum-geometric-order-enum-scalar-scalar-scalar-120" />
</CardGroup>

***

<h2 id="cad-body-scalar-field-geometric-order-enum-scalar-scalar-scalar-scalar-scalar-scalar-preserved-faces-preserved-nodes-5280">
  CAD Body, Scalar Field, Geometric Order Enum, Scalar, Scalar, Scalar, Scalar, Scalar, Scalar, Preserved faces, Preserved nodes, 5.28.0
</h2>

Create a FE Surface Mesh from the faces of a single CAD Body by discretizing and adding integration points of the desired order to each element within the mesh. Note, faulty CAD input can cause the meshing algorithm to fail.

### Inputs

| Name | Type | Description |
| - | - | - |
| Body | [CAD Body](../../../../block-documentation/types/cad-body) | The input geometric discretization. |
| Edge length | [Scalar Field](../../../../block-documentation/types/scalar-field) | The target edge length of the elements. |
| Geometric order | Geometric Order Enum | The geometric order of the finite elements. |
| Span angle | [Scalar](../../../../block-documentation/types/scalar) | The maximum spanning angle for elements generated on curved surfaces. Decreasing the span angle will refine the mesh in areas of local curvature. |
| Growth rate | [Scalar](../../../../block-documentation/types/scalar) | The rate at which the size of adjacent elements can grow. This value must be greater than 1.001. |
| Feature angle | [Scalar](../../../../block-documentation/types/scalar) | The maximum angle used to automatically compute the preserved edges in the input surface. Decreasing the feature angle will produce a mesh whose edges are better aligned with the input surface. |
| Min edge length | [Scalar](../../../../block-documentation/types/scalar) | The minimum allowed edge length of the generated elements in the output mesh. |
| Chord height | [Scalar](../../../../block-documentation/types/scalar) | The maximum distance from the midpoint of an element edge to the input surface. An undefined value turns off chord height sizing. |
| Min feature size | [Scalar](../../../../block-documentation/types/scalar) | The minimum small feature size to control the deletion of small features. A recommended value is about 5% of the edge length. An undefined value turns off feature deletion. |
| Preserved faces | [CAD Face List](../../../../block-documentation/types/cad-face) | The edges of the provided CAD Faces will be preserved in the resulting FE Mesh. If left empty, all CAD Face edges will be preserved. |
| Preserved nodes | [Point List](../../../../block-documentation/types/point) | Points to preserve as nodes in the resulting FE Mesh. If left empty, node preservation will be turned off. |

### Outputs

| Type |
| - |
| [FE Mesh](../../../../block-documentation/types/fe-mesh) |

***

<h2 id="cad-body-scalar-field-surface-mesh-shape-enum-geometric-order-enum-scalar-scalar-scalar">
  CAD Body, Scalar Field, Surface Mesh Shape Enum, Geometric Order Enum, Scalar, Scalar, Scalar
</h2>

Create an FE Mesh of shell elements from a single CAD Body. Note that faulty CAD input here can cause the meshing algorithms to fail.

### Inputs

| Name | Type | Description |
| - | - | - |
| Cad body | [CAD Body](../../../../block-documentation/types/cad-body) | The input CAD Body to mesh with shell elements. If a solid body is provided, note that only the boundary of solid body is meshed. |
| Edge length | [Scalar Field](../../../../block-documentation/types/scalar-field) | The target edge length of the elements. Note that the input can be a scalar field to achieve a spatially varying mesh size. |
| Shape | Surface Mesh Shape Enum | The desired element shape. |
| Geometric order | Geometric Order Enum | The geometric order of the output mesh. |
| Span angle | [Scalar](../../../../block-documentation/types/scalar) | The maximum spanning angle for elements on a curved surface. The smaller this angle the more elements will be generated to conform to a curved input. |
| Growth rate | [Scalar](../../../../block-documentation/types/scalar) | The rate at which the size of adjacent elements can grow. |
| Feature angle | [Scalar](../../../../block-documentation/types/scalar) | The angle used to automatically detect feature angles in the input domain that will be preserved in the output mesh. |

### Outputs

| Type |
| - |
| [FE Mesh](../../../../block-documentation/types/fe-mesh) |

***

<h2 id="cad-body-scalar-field-surface-mesh-shape-enum-geometric-order-enum-scalar-scalar-scalar-110">
  CAD Body, Scalar Field, Surface Mesh Shape Enum, Geometric Order Enum, Scalar, Scalar, Scalar, 1.1.0
</h2>

Create an FE Mesh of shell elements from a single CAD Body. Note that faulty CAD input here can cause the meshing algorithms to fail.

### Inputs

| Name | Type | Description |
| - | - | - |
| Cad body | [CAD Body](../../../../block-documentation/types/cad-body) | The input CAD Body to mesh with shell elements. If a solid body is provided, note that only the boundary of solid body is meshed. |
| Edge length | [Scalar Field](../../../../block-documentation/types/scalar-field) | The target edge length of the elements. Note that the input can be a scalar field to achieve a spatially varying mesh size. |
| Shape | Surface Mesh Shape Enum | The desired element shape. |
| Geometric order | Geometric Order Enum | The geometric order of the output mesh. |
| Span angle | [Scalar](../../../../block-documentation/types/scalar) | The maximum spanning angle for elements on a curved surface. The smaller this angle the more elements will be generated to conform to a curved input. |
| Growth rate | [Scalar](../../../../block-documentation/types/scalar) | The rate at which the size of adjacent elements can grow. |
| Feature angle | [Scalar](../../../../block-documentation/types/scalar) | The angle used to automatically detect feature angles in the input domain that will be preserved in the output mesh. |

### Outputs

| Type |
| - |
| [FE Mesh](../../../../block-documentation/types/fe-mesh) |

***

<h2 id="cad-body-scalar-field-surface-mesh-shape-enum-geometric-order-enum-scalar-scalar-scalar-120">
  CAD Body, Scalar Field, Surface Mesh Shape Enum, Geometric Order Enum, Scalar, Scalar, Scalar, 1.2.0
</h2>

Create an FE Mesh of shell elements from a single CAD Body. Note that faulty CAD input here can cause the meshing algorithms to fail.

### Inputs

| Name | Type | Description |
| - | - | - |
| Cad body | [CAD Body](../../../../block-documentation/types/cad-body) | The input CAD Body to mesh with shell elements. If a solid body is provided, note that only the boundary of solid body is meshed. |
| Edge length | [Scalar Field](../../../../block-documentation/types/scalar-field) | The target edge length of the elements. Note that the input can be a scalar field to achieve a spatially varying mesh size. |
| Shape | Surface Mesh Shape Enum | The desired element shape. |
| Geometric order | Geometric Order Enum | The geometric order of the output mesh. |
| Span angle | [Scalar](../../../../block-documentation/types/scalar) | The maximum spanning angle for elements on a curved surface. The smaller this angle the more elements will be generated to conform to a curved input. |
| Growth rate | [Scalar](../../../../block-documentation/types/scalar) | The rate at which the size of adjacent elements can grow. |
| Feature angle | [Scalar](../../../../block-documentation/types/scalar) | The angle used to automatically detect feature angles in the input domain that will be preserved in the output mesh. |

### Outputs

| Type |
| - |
| [FE Mesh](../../../../block-documentation/types/fe-mesh) |


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