Make various color-bars

make_colorbar.py

import matplotlib as mpl
import matplotlib.pyplot as plt
import numpy as np



def colorFader(c1,c2,mix=0): #fade (linear interpolate) from color c1 (at mix=0) to c2 (mix=1)
    c1=np.array(mpl.colors.to_rgb(c1))
    c2=np.array(mpl.colors.to_rgb(c2))
    return mpl.colors.to_hex((1-mix)*c1 + mix*c2)

#black-white
# c2 = '#ffffff'
# c1 = '#000000'
# Green
# c1='#007517'
# c2='#00fb3b'
#
# Red
# c1='#7a0603'
# c2='#ff180f'

# Red-Yellow
c2='#FFF800'
c1='#FF0300'

# # Blue-LightBlue
# c2='#00F8FF'
# c1='#0003FF'

insideText = 'BOLD'
lThresh = '4'
uThresh = '15'

n=500

bar, ax = plt.subplots(figsize=(1.5, 8))

for x in range(n+1):
    ax.axhline(x, color=colorFader(c1,c2,x/n), linewidth=4)

plt.axis('off')

plt.text(0.5, 0.5, f'{insideText}',fontsize=30, fontweight='bold', rotation=90,horizontalalignment='center',
        verticalalignment='center',transform=ax.transAxes)

plt.text(0.5, 0.05, f'{lThresh}',fontsize=30, fontweight='bold',horizontalalignment='center',
        verticalalignment='bottom',transform=ax.transAxes, color='white')

plt.text(0.5, 0.95, f'{uThresh}' ,fontsize=30, fontweight='bold',horizontalalignment='center',
        verticalalignment='top',transform=ax.transAxes)


plt.savefig(f'{insideText}_{lThresh}-{uThresh}.png',transparent=True,bbox_inches='tight')
plt.show()



# Red-Yellow
c2='#FFF800'
c1='#FF0300'
#
# Blue-LightBlue
c2='#00F8FF'
c1='#0003FF'

# Notext
lThresh = '0'
uThresh = '25'
modality = 'VASO'
modality = 'BOLD'
modality = 'tSNR'

bar, ax = plt.subplots(figsize=(0.75, 8),facecolor = 'k')

for x in range(n+1):
    ax.axhline(x, color=colorFader(c1,c2,x/n), linewidth=4)

plt.ylim(0,500)
ax.yaxis.tick_right()
ax.spines['left'].set_color('w')
ax.spines['top'].set_color('w')
ax.spines['right'].set_color('w')
ax.spines['bottom'].set_color('w')

ax.tick_params(axis='y', colors='white')

ax.set_yticks([0,500])
ax.set_yticklabels([lThresh,uThresh],fontsize=40)

# ax.set_xlabel(f'{modality}\nz-score',fontsize=40, labelpad=20)
ax.set_xlabel(f'{modality}',fontsize=40, labelpad=20)


ax.xaxis.label.set_color('white')
plt.savefig(f'/Users/sebastiandresbach/git/gists/{modality}_{lThresh}-{uThresh}.png',transparent=True,bbox_inches='tight')

# plt.savefig(f'{modality}_{lThresh}-{uThresh}.png',transparent=True,bbox_
# inches='tight')
plt.show()


#black-white
c2 = '#ffffff'
c1 = '#000000'

modality = 'T1w\n(a.u.)'
lThresh = '0'
uThresh = '19'

bar, ax = plt.subplots(figsize=(8, 0.75),facecolor = 'k')

for x in range(n+1):
    ax.axvline(x, color=colorFader(c1,c2,x/n), linewidth=4)

plt.xlim(0,500)
ax.yaxis.tick_right()
ax.spines['left'].set_color('w')
ax.spines['top'].set_color('w')
ax.spines['right'].set_color('w')
ax.spines['bottom'].set_color('w')

ax.tick_params(axis='x', colors='white')

ax.set_xticks([0,500])
ax.set_xticklabels([lThresh,uThresh],fontsize=40)

# ax.set_xlabel(f'{modality}\nz-score',fontsize=40, labelpad=20)
ax.set_xlabel(f'{insideText}',fontsize=40)


ax.xaxis.label.set_color('white')

plt.savefig(f'/Users/sebastiandresbach/git/gists/{insideText}_{lThresh}-{uThresh}.png',transparent=True,bbox_inches='tight')

# plt.savefig(f'{modality}_{lThresh}-{uThresh}.png',transparent=True,bbox_inches='tight')
plt.show()






test = True

test *3