# BumpFunction class

Namespace: [Grasshopper2.Types.Functions.Standard](https://developer.rhino3d.com/api/gh2/namespace/grasshopper2.types.functions.standard.md) · Assembly: [Grasshopper2](https://developer.rhino3d.com/api/gh2/assembly/grasshopper2.md)

```cs
[IoId("00000000-0364-405E-BD1F-67D634A29BD4")]
public sealed class BumpFunction : FunctionWithCaching
```

A function with manually placed bumps in a variety of shapes.

## Constructors

- [BumpFunction](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.standard.bumpfunction/ctor.md): (3 overloads)

## Properties

- [Baseline](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.standard.bumpfunction/baseline.md): Gets the zero-base line for this function.
- [BumpCount](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.standard.bumpfunction/bumpcount.md): Gets the number of the bumps.
- [Shape](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.standard.bumpfunction/shape.md): Gets the shape of the bumps.
- [Ui](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.standard.bumpfunction/ui.md)

## Indexers

- [this[]](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.standard.bumpfunction/item.md): Gets the bump at the given index.

## Methods

- [DerivativeAt](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.standard.bumpfunction/derivativeat.md)
- [DomainEstimate](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.standard.bumpfunction/domainestimate.md)
- [EmitDerivative](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.standard.bumpfunction/emitderivative.md)
- [Store](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.standard.bumpfunction/store.md)
- [Y](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.standard.bumpfunction/y.md)

## Inherited Members

- From [FunctionWithCaching](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.functionwithcaching.md): [Derivative](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.functionwithcaching/derivative.md), [Integral](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.functionwithcaching/integral.md), [Nomen](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.functionwithcaching/nomen.md), [Notation](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.functionwithcaching/notation.md), [EmitIntegral](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.functionwithcaching/emitintegral.md)
- From [Function](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.function.md): [Asymptotes](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.function/asymptotes.md), [AutoCoDomain](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.function/autocodomain.md), [Holes](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.function/holes.md), [Integrate](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.function/integrate.md), [Poles](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.function/poles.md), [YYYY](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.function/yyyy.md)