added efishtitle source file

efishtitle.py

@@ -0,0 +1,175 @@
+import numpy as np
+import matplotlib.pyplot as plt
+from thunderfish.efield import efish_monopoles, epotential_meshgrid, squareroot_transform
+from thunderfish.fishshapes import plot_fish
+
+def aspect_ratio(ax):
+    """Aspect ratio of axes.
+
+    From `plottools.axes`.
+
+    Parameters
+    ----------
+    ax: matplotlib axes
+        Axes of which aspect ratio is computed.
+
+    Returns
+    -------
+    aspect: float
+        Aspect ratio (height in inches relative to width).
+    """
+    figw, figh = ax.get_figure().get_size_inches()
+    _, _, w, h = ax.get_position().bounds
+    return (figh * h) / (figw * w)
+
+
+def lighter(color, lightness):
+    """ Make a color lighter.
+
+    Adapted from `plottools.colors`.
+
+    Parameters
+    ----------
+    color: matplotlib color spec
+        A matplotlib color (hex string, name color string, rgb tuple).
+    lightness: float
+        The smaller the lightness, the lighter the returned color.
+        A lightness of 0 returns white.
+        A lightness of 1 leaves the color untouched.
+        A lightness of 2 returns black.
+
+    Returns
+    -------
+    color: string
+        The lighter color as a hexadecimal RGB string (e.g. '#rrggbb').
+    """
+    try:
+        from matplotlib.colors import colorConverter as cc
+    except ImportError:
+        import matplotlib.colors as cc
+    try:
+        from matplotlib.colors import to_hex
+    except ImportError:
+        from matplotlib.colors import rgb2hex as to_hex
+        
+    if lightness > 2:
+        lightness = 2
+    if lightness > 1:
+        return darker(color, 2.0-lightness)
+    if lightness < 0:
+        lightness = 0
+    r, g, b = cc.to_rgb(color)
+    rl = r + (1.0-lightness)*(1.0 - r)
+    gl = g + (1.0-lightness)*(1.0 - g)
+    bl = b + (1.0-lightness)*(1.0 - b)
+    return to_hex((rl, gl, bl)).upper()
+
+
+def colormap(name, colors, values=None):
+    """ Generate and register a color map.
+
+    From `plottools.colors`.
+
+    This is a simple shortcut to the cumbersome names and imports needed for
+    `matplotlib.colors.LinearSegmentedColormap` and `matplotlib.cm import register_cmap`.
+
+    Parameters
+    ----------
+    name: string
+        Name of the color map. You can use this name to set the colormap, e.g.
+        ```
+        ax.contourf(x, y, z, cmap=name)
+        ```
+    colors: sequence of matplotlib color specifications
+        The colors from which to generate the color map.
+    values: sequence of floats or None
+        If None, `colors` are equidistantly mapped on the range 0 to 1.
+        Otherwise for each color the position in the colors map range.
+
+    Returns
+    -------
+    cmap: matplotlib colormap
+        The color map generated from `colors`.
+    """
+    from matplotlib.colors import LinearSegmentedColormap
+    from matplotlib.cm import register_cmap
+    if values is not None:
+        colors = list(zip(values, colors))
+    cmap = LinearSegmentedColormap.from_list(name, colors)
+    register_cmap(cmap=cmap)
+    return cmap
+
+
+# colors_muted palette from plottools.colors:
+palette = {}
+palette['red'] = '#C02717'
+palette['orange'] = '#F78017'
+palette['yellow'] = '#F0D730'
+palette['lightgreen'] = '#AAB71B'
+palette['green'] = '#478010'
+palette['darkgreen'] = '#007027'
+palette['cyan'] = '#008767'
+palette['lightblue'] = '#108790'
+palette['blue'] = '#2060A7'
+palette['purple'] = '#53379B'
+palette['magenta'] = '#873770'
+palette['pink'] = '#D03050'
+palette['white'] = '#FFFFFF'
+palette['gray'] = '#A0A0A0'
+palette['black'] = '#32414B'   # black from colors_unituebingen
+
+# global styles for plotting fish:
+csLine = dict(colors=palette['gray'], linewidths=0.1, linestyles='solid')
+fishBody = dict(zorder=21, lw=0.1, edgecolor=palette['black'], facecolor=palette['black'])
+fishFins = dict(zorder=20, lw=0.5, alpha=0.4, edgecolor=lighter(palette['black'], 0.4),
+                facecolor=palette['black'])
+fishOpenBody = dict(zorder=21, lw=0.2, edgecolor=palette['black'], facecolor='none')
+fishLightBody = dict(zorder=21, lw=0.2, edgecolor=palette['black'],
+                     facecolor=lighter(palette['black'], 0.2))
+fishLightFins = dict(zorder=20, lw=0.2, edgecolor=palette['black'],
+                     facecolor=lighter(palette['black'], 0.05))
+
+    
+def plot_threewavefish(ax):
+    maxx = 30.0
+    maxy = maxx * aspect_ratio(ax)
+    x = np.linspace(-maxx, maxx, 600)
+    y = np.linspace(-maxy, maxy, 200)
+    xx, yy = np.meshgrid(x, y)
+    fish1 = (('Alepto', 'top'), (-16.5, -3.5), (1, 0.1), 18.0, 10)
+    fish2 = (('Alepto', 'top'), (17, 0.5), (1.0, 0.4), 20.0, -20)
+    fish3 = (('Alepto', 'top'), (2, 3), (1, -0.1), 16.0, -12)
+    poles1 = efish_monopoles(*fish1[1:])
+    poles2 = efish_monopoles(*fish2[1:])
+    poles3 = efish_monopoles(*fish3[1:])
+    pot = epotential_meshgrid(xx, yy, None, poles1, poles2, poles3)
+    mz = 0.65
+    zz = squareroot_transform(pot/200, mz)
+    levels = np.linspace(-mz, mz, 16)
+    ax.contourf(x, y, -zz, levels)
+    ax.contour(x, y, -zz, levels, **csLine)
+    plot_fish(ax, *fish1, bodykwargs=fishBody, finkwargs=fishFins)
+    plot_fish(ax, *fish2, bodykwargs=fishBody, finkwargs=fishFins)
+    plot_fish(ax, *fish3, bodykwargs=fishBody, finkwargs=fishFins)
+    ax.set_aspect('equal')
+
+    
+if __name__ == "__main__":
+    # hide spines:
+    plt.rcParams['axes.spines.left'] = False
+    plt.rcParams['axes.spines.right'] = False
+    plt.rcParams['axes.spines.top'] = False
+    plt.rcParams['axes.spines.bottom'] = False
+    # color map:
+    cmcolors = [palette['red'], lighter(palette['orange'], 0.85),
+                lighter(palette['yellow'], 0.2), lighter(palette['lightblue'], 0.8),
+                palette['blue']]
+    cmvalues = [0.0, 0.25, 0.5, 0.8, 1.0]
+    colormap('RYB', cmcolors, cmvalues)
+    plt.rcParams['image.cmap'] = 'RYB'
+    #plt.rcParams['image.cmap'] = 'RdYlBu'
+    
+    fig, ax = plt.subplots(figsize=(15.2/2.54, 4.0/2.54))
+    fig.subplots_adjust(left=0, right=1, top=1, bottom=0)
+    plot_threewavefish(ax)
+    fig.savefig('efishtitle.pdf')

ut-example.tex

@@ -7,8 +7,8 @@
 \date[2021]{March 2021}
 \logo{\includegraphics[height=3.5ex]{UT_WBMW_Rot_RGB}}
 \titlelogo{\includegraphics[height=5ex]{UT_MNF_RGB}\hfill%
-  \raisebox{-0.5ex}{\includegraphics[height=6ex]{BCCN_Tuebingen_Logo-long}}\hfill%
-  \includegraphics[height=5ex]{CIN-E}\vspace{-0.5ex}}
+  \includegraphics[height=6ex]{BCCN_Tuebingen_Logo-long}\hfill%
+  \includegraphics[height=5ex]{CIN-E}}
 \titlegraphic{\includegraphics[width=\textwidth]{efishtitle}}
 
 \setbeamerfont{block body}{size=\small}