# 散布図のProjection色々

Projectionパラメータを色々試してみます。

## 基本

```
import numpy as np
import matplotlib.pyplot as plt
np.random.seed(20190805)
N = 150
r = 2 * np.random.rand(N)
theta = 2 * np.pi * np.random.rand(N)
area = 200 * r**2
colors = theta
fig = plt.figure()
ax = fig.add_subplot(111)
c = ax.scatter(theta, r, c=colors, s=area, cmap='hsv', alpha=0.75)
```

## aitoff

```
ax = fig.add_subplot(111, projection='aitoff')
```

## lambert

```
ax = fig.add_subplot(111, projection='lambert')
```

## mollweide

```
ax = fig.add_subplot(111, projection='mollweide')
```

## polar

```
ax = fig.add_subplot(111, projection='polar')
```