# XWUIChartVenn

A Venn diagram backed by `XWUIChart` (via the `@xw3d` 2D layer) that draws overlapping translucent circles to show how sets intersect and where they share members. Each point in `series[0].data` is a set (`x` = name, `y` = size); you also pick a `block` (1-4) variant plus a `size` preset.

## Basic Usage

A single `Sets` series of three overlapping sets sized by value - A 40, B 30, C 20.

```example
file: examples/BasicUsage.ts
html: examples/BasicUsage.html
title: Basic Usage
description: Three overlapping sets sized by value drawn as a Venn diagram at the md preset.
```

## Streaming Service Overlap

Two subscriber bases sized in millions, with the intersection standing in for the shared audience.

```example
file: examples/SubscriberOverlap.ts
html: examples/SubscriberOverlap.html
title: Streaming Service Overlap
description: Two-set Venn of music and podcast subscribers in millions at the md preset with the block-2 variant and data labels.
```

## Engineering Skill Coverage

Three skill pools sized by engineer headcount to expose cross-skilled overlap and gaps.

```example
file: examples/SkillCoverage.ts
html: examples/SkillCoverage.html
title: Engineering Skill Coverage
description: Three-set Venn of frontend, backend and DevOps headcount at the lg preset with an interactive legend.
```

```api
```