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# V4 - Spline Tools Function Library - Part 2

**BPL-SDotSplineTools** contains the functions needed to
create the blueprints in this project. The functions
can be used in any blueprint within a project were the
library is present.

**Part 2** covers **Spline Segment** and **Spline
Mesh** nodes.

Content:

Spline Segment Dividers - 2 Segments

Segments with Additional Placements

- Rotate the entire spline by selecting the root of the blueprint
- The little squares represent the spline points. Click on them to move them around
- Use the 2 handles to rotate a spline point. Do not manually rotate the spline point itself
- Right click on the spline or spline point to add, modify or delete spline points

## Total Spline Length

### Total Spline Length

Always start with getting the total spline length from the
**Spline** component then divide the total spline length if
necessary.

### Spline Segment A A

A - A will divide the segment into two equal sized halves.

## Spline Segment Dividers - 2 Segments

### Spline Segment A B

Divides the segment into two parts sized relative to the values set in A and B

### Spline Segment A F

splits off a fixed segment at the end with the width set.

### Spline Segment F A

splits off a fixed segment at the start with the width set.

## Segments with Additional Placements

### Spline Segment A N

Adds N numbers of a mesh defined in *Spline Mesh* at the end of
the segment. The remaining segment is provided in the output pin.

### Spline Segment A N

Adds N numbers of a mesh defined in *Spline Mesh* at the start
of the segment.

## Spline Segment Dividers - 3 Segments

### Spline Segment A B A

Divides the segment into a center segment with 2 equal sized segments on each size.

The size will be relative to the values entered for A and B.

### Spline Segment A F A

Divides the segment into a fixed center segment with 2 equal sized segments on each size.

The size in the center will be fixed.

### Spline Segment F A F

Splits off 2 fixed size segments on either end of the spline segment. Segment A will have the remaining size.

## Segment Repeater

### Spline Segment Repeater

Divides the segment into equal sized parts when combined with a
**For Each Loop**

**Scale to Fit** adjusts the **Segment Length** to the closest
value so the entire given spline segment will be used.

## Mesh On Spline

Mesh on Spline nodes define the static meshes to be placed on the spline.- Mesh On Spline
- Mesh On Spline with Transform

There is also an option taking a random element from an array of meshes or materials.

- Random Mesh On Spline

> Static Mesh | The static mesh that should be placed [WIP*]: A random mesh will be picked per mesh placement If more than one mesh has been added. |

> Materials | [WIP*] A random set will be picked per mesh if more than one set has been added. |

> Material Set | Materials set for the mesh as they would be added in the static mesh editor |

index [ 0 ] | Material for index [0]. Empty slots are being ignored. |

Overlap | How much the mesh placements overlap. Negative values will create a gap. |

Orientation | Z axis rotation of the static mesh on the spline. Affects the size calculations. Use this for the initial rotation. |

Transform | A transform for all meshes relative to the spline point. |

* Work in Progress

### ... To Transform Nodes

Type *to transform* into the search box to find these nodes.

They can be used to simplify the transform input if only one axis or transform type needs to be modified.

### Additional Transforms

Offset Type | - Standard: relative transform added for all
meshes - Incremental: incremental transform added per mesh - Random: random transform added per mesh within the set range |

### Random Offset Type

The values in the transform are used as a random range

- Location and Rotation: 25.0 will offset between -25 and +25
- Scale: 1.25 will scale between 0.75 and 1.25

## Material Parameter Randomizer

Can randomly modify named material parameters for each mesh placed.- Random Material Color Parameter: colors
- Random Material Scalar Parameter: simple variables
- Random Material Vector Parameter: 2D-3D-4D Vectors

Material ID | affected material ID |

Parameter Name | parameter name to be randomly modified |

Min / Max | will pick a random value between min and max values. |

Random Range | Vector Random Range: 0.5 will pick a random value between -0.5 and 0.5 |