> For the complete documentation index, see [llms.txt](https://docs.flatredball.com/gum/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.flatredball.com/gum/gum-tool/gum-elements/skia-standard-elements/arc/thickness.md).

# Thickness

### Introduction

Thickness controls the width of the arc line in pixels. This value can be increased to make the line arc thicker.

<figure><img src="/files/jFenv22phtLxhc7uT95S" alt=""><figcaption><p>Changing the thickness chnages the width of the arc's line</p></figcaption></figure>

Thickness can be increased to create a wedge.

<figure><img src="/files/qNxOJQHfTWcanJJWmK4j" alt=""><figcaption><p>Increasing Thickness to create a wedge</p></figcaption></figure>

Note that Thickness can be increased to any value including values larger than the radius of the arc. Large values can result in the arc rendering past its center point creating a *bowtie* shape.

<figure><img src="/files/d6R8ar39EC0s43qAtQJs" alt=""><figcaption><p>Bowtie created by setting thickness to be larger than the radius of the arc</p></figcaption></figure>

Other undesirable rendering effects can happen with large thicknesses when working with arcs which have one size (width or height) larger than the other, as shown in the following image:

<figure><img src="/files/v6pwSykoUZlMBeHo5uM7" alt=""><figcaption><p>Arck with the values Width=340, Height=160, Thickness=95 rendering incorrectly</p></figcaption></figure>


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.flatredball.com/gum/gum-tool/gum-elements/skia-standard-elements/arc/thickness.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
