23 colormaps

Creating colormaps with a single line of code

Uncomment the following line to install leafmap if needed.

In [1]:

# !pip install leafmap

# !pip install leafmap

This notebook requires the ipyleaflet plotting backend. Folium is not supported.

In [2]:

from leafmap import leafmap
import leafmap.colormaps as cm

from leafmap import leafmap import leafmap.colormaps as cm

Color palette for DEM data.

In [3]:

cm.palettes.dem

cm.palettes.dem

Out[3]:

('006633', 'E5FFCC', '662A00', 'D8D8D8', 'F5F5F5')

Show the DEM palette.

In [4]:

cm.plot_colormap(colors=cm.palettes.dem, axis_off=True)

cm.plot_colormap(colors=cm.palettes.dem, axis_off=True)

Color palette for NDVI data.

In [5]:

cm.palettes.ndvi

cm.palettes.ndvi

Out[5]:

('FFFFFF',
 'CE7E45',
 'DF923D',
 'F1B555',
 'FCD163',
 '99B718',
 '74A901',
 '66A000',
 '529400',
 '3E8601',
 '207401',
 '056201',
 '004C00',
 '023B01',
 '012E01',
 '011D01',
 '011301')

Show the NDVI palette.

In [6]:

cm.plot_colormap(colors=cm.palettes.ndvi)

cm.plot_colormap(colors=cm.palettes.ndvi)

Specify the number of classes for a palette.

In [7]:

cm.get_palette('terrain', n_class=8)

cm.get_palette('terrain', n_class=8)

Out[7]:

['333399',
 '0294fa',
 '24d36d',
 'b6f08a',
 'dbd085',
 '92735e',
 'b6a29d',
 'ffffff']

Show the terrain palette with 8 classes.

In [8]:

cm.plot_colormap(colors=cm.get_palette('terrain', n_class=8))

cm.plot_colormap(colors=cm.get_palette('terrain', n_class=8))

Create a palette with custom colors, label, and font size.

In [9]:

cm.plot_colormap(colors=["red", "green", "blue"], label="Temperature", font_size=12)

cm.plot_colormap(colors=["red", "green", "blue"], label="Temperature", font_size=12)

Create a discrete color palette.

In [10]:

cm.plot_colormap(
    colors=["red", "green", "blue"], discrete=True, label="Temperature", font_size=12
)

cm.plot_colormap( colors=["red", "green", "blue"], discrete=True, label="Temperature", font_size=12 )

Specify the width and height for the palette.

In [11]:

cm.plot_colormap(
    'terrain',
    label="Elevation",
    width=8.0,
    height=0.4,
    orientation='horizontal',
    vmin=0,
    vmax=1000,
)

cm.plot_colormap( 'terrain', label="Elevation", width=8.0, height=0.4, orientation='horizontal', vmin=0, vmax=1000, )

Change the orentation of the colormap to be vertical.

In [12]:

cm.plot_colormap(
    'terrain',
    label="Elevation",
    width=0.4,
    height=4,
    orientation='vertical',
    vmin=0,
    vmax=1000,
)

cm.plot_colormap( 'terrain', label="Elevation", width=0.4, height=4, orientation='vertical', vmin=0, vmax=1000, )

Add a horizontal colorbar to an interactive map.

In [13]:

m = leafmap.Map()
m.add_basemap("OpenTopoMap")
m.add_colormap(
    'terrain',
    label="Elevation",
    width=8.0,
    height=0.4,
    orientation='horizontal',
    vmin=0,
    vmax=4000,
)
m

m = leafmap.Map() m.add_basemap("OpenTopoMap") m.add_colormap( 'terrain', label="Elevation", width=8.0, height=0.4, orientation='horizontal', vmin=0, vmax=4000, ) m

Add a vertical colorbar to an interactive map.

In [14]:

m = leafmap.Map()
m.add_basemap("OpenTopoMap")
m.add_colormap(
    'terrain',
    label="Elevation",
    width=0.4,
    height=4,
    orientation='vertical',
    vmin=0,
    vmax=4000,
)
m

m = leafmap.Map() m.add_basemap("OpenTopoMap") m.add_colormap( 'terrain', label="Elevation", width=0.4, height=4, orientation='vertical', vmin=0, vmax=4000, ) m

Show all available colormaps.

In [15]:

cm.plot_colormaps(width=12, height=0.4)

cm.plot_colormaps(width=12, height=0.4)

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Last update: 2022-03-14