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ENH: add plot points with colormap

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Joris Van den Bossche
2015-10-29 09:51:42 +01:00
parent bdfc7fb819
commit d42ffebdb5
1 changed files with 6 additions and 5 deletions
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geopandas/plotting.py
+6 -5
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@@ -49,9 +49,10 @@ def plot_multilinestring(ax, geom, color='red', linewidth=1.0):
plot_linestring(ax, line, color=color, linewidth=linewidth)
def plot_point(ax, pt, marker='o', markersize=2):
def plot_point(ax, pt, marker='o', markersize=2, color="black"):
""" Plot a single Point geometry """
ax.plot(pt.x, pt.y, marker=marker, markersize=markersize, linewidth=0)
ax.plot(pt.x, pt.y, marker=marker, markersize=markersize, linewidth=0,
color=color)
def gencolor(N, colormap='Set1'):
@@ -126,7 +127,7 @@ def plot_series(s, colormap='Set1', axes=None, linewidth=1.0, figsize=None, **co
elif geom.type == 'LineString' or geom.type == 'MultiLineString':
plot_multilinestring(ax, geom, color=next(color), linewidth=linewidth)
elif geom.type == 'Point':
plot_point(ax, geom)
plot_point(ax, geom, color=next(color))
plt.draw()
return ax
@@ -244,9 +245,8 @@ def plot_dataframe(s, column=None, colormap=None, linewidth=1.0,
plot_multipolygon(ax, geom, facecolor=cmap.to_rgba(value), linewidth=linewidth, **color_kwds)
elif geom.type == 'LineString' or geom.type == 'MultiLineString':
plot_multilinestring(ax, geom, color=cmap.to_rgba(value), linewidth=linewidth)
# TODO: color point geometries
elif geom.type == 'Point':
plot_point(ax, geom)
plot_point(ax, geom, color=cmap.to_rgba(value))
if legend:
if categorical:
patches = []
@@ -337,6 +337,7 @@ def norm_cmap(values, cmap, normalize, cm, vmin=None, vmax=None):
-------
n_cmap
mapping of normalized values to colormap (cmap)
"""
mn = vmin or min(values)