plot-colorbar.rst

Colorbar (marvin.utils.plot.colorbar)

Introduction

marvin.utils.plot.colorbar cooontains utility functions for making colorbars for Marvin maps. These functions are mostly for internal use, however, the ~marvin.utils.plot.colorbar.linearlab function returns the linearlab colormap, whose properties are described here.

Getting Started

Using ~marvin.utils.plot.colorbar

Get the linearlab colormap that is the default for many MaNGA maps:

import marvin.utils.plot.colorbar as colorbar
linearlab, linearlab_r = colorbar.linearlab()

import marvin.utils.plot.colorbar as colorbar linearlab, linearlab_r = colorbar.linearlab()

import matplotlib.pyplot as plt fig, axes = plt.subplots(nrows=2, figsize=(6, 1)) fig.subplots_adjust(top=0.95, bottom=0.01, left=0.25, right=0.99) gradient = np.array([np.linspace(0, 1, 256)])

for ax, cmap in zip(axes, (linearlab, linearlab_r)):

ax.imshow(gradient, aspect='auto', cmap=cmap) pos = list(ax.get_position().bounds) y_text = pos[1] + pos[3] / 2. fig.text(0.02, y_text, cmap.name, va='center', ha='left', fontsize=16) ax.set_axis_off()

Reference/API

Module

marvin.utils.plot.colorbar

Functions

marvin.utils.plot.colorbar.linearlab