#!/usr/bin/env python
# coding: utf-8

# # `stroke` aesthetic
# 
# Affects the thickness of the point boundaries (in case the given shape has a boundary).
# 
# Available for the following geometries: `geom_point()`, `geom_jitter()`, `geom_qq()`, `geom_qq2()`, `geom_pointrange()`, `geom_dotplot()`, `geom_ydotplot()`.

# In[1]:


from lets_plot import *


# In[2]:


LetsPlot.setup_html()


# In[3]:


data1 = {
    'x': (list(range(7)) * 4)[:26],
    'y': ([3] * 7 + [2] * 7 + [1] * 7 + [0] * 7)[:26],
    'shape': list(range(26)),
}


# In[4]:


p1 = ggplot(data1, aes('x', 'y')) + scale_shape_identity() + \
    xlim(-1, 7) + ylim(-1, 4) + \
    theme(legend_position='none')


# #### 1. Default Stroke

# In[5]:


p1 + geom_point(aes(shape='shape'), size=12, color="#54278f", fill="#dd1c77")


# #### 2. Increased Stroke

# In[6]:


p1 + geom_point(aes(shape='shape'), size=12, stroke=6, color="#54278f", fill="#dd1c77")


# #### 3. Stroke Scales

# In[7]:


data2 = {
    'x': [0, 1, 2],
    'y': [0, 0, 0],
    'stroke': [4, 16, 8],
}


# In[8]:


p2 = ggplot(data2, aes('x', 'y')) + \
    geom_point(aes(stroke='stroke'), size=12, shape=21, color="#54278f", fill="#dd1c77")


# In[9]:


gggrid([
    p2 + ggtitle("Default scale"),
    p2 + scale_stroke(range=[2, 4]) + ggtitle("scale_stroke()"),
    p2 + scale_stroke_identity() + ggtitle("scale_stroke_identity()"),
], ncol=2)