matplotlib.github.com/_modules/matplotlib/tri/triplot.html at master · 2236zml/matplotlib.github.com · GitHub

History

227 lines (184 loc) · 16.2 KB

Raw

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

223

224

225

226

227

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"

"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<head>

<title>matplotlib.tri.triplot — Matplotlib 3.1.3 documentation</title>

type="text/css" />

type="text/css" />

title="Search within Matplotlib 3.1.3 documentation"

href="../../../_static/opensearch.xml"/>

</head>

<body>

<div style="float: left; position: absolute; width: 496px; bottom: 0; padding-bottom: 24px">Version 3.1.3</div>

<div id="forkongithub"><a href="https://github.com/matplotlib/matplotlib">Fork me on GitHub</a></div>

</div>

<ul>

<li><a href="../../../users/installing.html">Installation</a></li>

<li><a href="../../../contents.html">Documentation</a></li>

<li><a href="../../../gallery/index.html">Examples</a></li>

<li><a href="../../../tutorials/index.html">Tutorials</a></li>

<li><a href="../../../devel/index.html">Contributing</a></li>

</form>

</li>

</ul>

</nav>

<h3>Navigation</h3>

<ul>

<a href="../../../genindex.html" title="General Index"

accesskey="I">index</a></li>

<a href="../../../py-modindex.html" title="Python Module Index"

>modules</a> |</li>

<li><a href="../../../contents.html">contents</a> »</li>

<li><a href="../../index.html" >Module code</a> »</li>

<li><a href="../../matplotlib.html" accesskey="U">matplotlib</a> »</li>

</ul>

</div>

<h3>Related Topics</h3>

<ul>

<li><a href="../../../contents.html">Documentation overview</a><ul>

<li><a href="../../index.html">Module code</a><ul>

<li><a href="../../matplotlib.html">matplotlib</a><ul>

</ul></li>

</ul>

</div>

<h1>Source code for matplotlib.tri.triplot</h1><div class="highlight"><pre>

import numpy as np

from matplotlib.tri.triangulation import Triangulation

def triplot(ax, *args, **kwargs):

"""

Draw a unstructured triangular grid as lines and/or markers.

The triangulation to plot can be specified in one of two ways;

either::

triplot(triangulation, ...)

where triangulation is a :class:`matplotlib.tri.Triangulation`

object, or

::

triplot(x, y, ...)

triplot(x, y, triangles, ...)

triplot(x, y, triangles=triangles, ...)

triplot(x, y, mask=mask, ...)

triplot(x, y, triangles, mask=mask, ...)

in which case a Triangulation object will be created. See

:class:`~matplotlib.tri.Triangulation` for a explanation of these

possibilities.

The remaining args and kwargs are the same as for

:meth:`~matplotlib.axes.Axes.plot`.

Return a list of 2 :class:`~matplotlib.lines.Line2D` containing

respectively:

- the lines plotted for triangles edges

- the markers plotted for triangles nodes

"""

import matplotlib.axes

tri, args, kwargs = Triangulation.get_from_args_and_kwargs(*args, **kwargs)

x, y, edges = (tri.x, tri.y, tri.edges)

# Decode plot format string, e.g., 'ro-'

fmt = args[0] if args else ""

linestyle, marker, color = matplotlib.axes._base._process_plot_format(fmt)

# Insert plot format string into a copy of kwargs (kwargs values prevail).

kw = kwargs.copy()

for key, val in zip(('linestyle', 'marker', 'color'),

(linestyle, marker, color)):

if val is not None:

kw[key] = kwargs.get(key, val)

# Draw lines without markers.

# Note 1: If we drew markers here, most markers would be drawn more than

# once as they belong to several edges.

# Note 2: We insert nan values in the flattened edges arrays rather than

# plotting directly (triang.x[edges].T, triang.y[edges].T)

# as it considerably speeds-up code execution.

linestyle = kw['linestyle']

kw_lines = {

**kw,

'marker': 'None', # No marker to draw.

'zorder': kw.get('zorder', 1), # Path default zorder is used.

}

if linestyle not in [None, 'None', '', ' ']:

tri_lines_x = np.insert(x[edges], 2, np.nan, axis=1)

tri_lines_y = np.insert(y[edges], 2, np.nan, axis=1)

tri_lines = ax.plot(tri_lines_x.ravel(), tri_lines_y.ravel(),

**kw_lines)

else:

tri_lines = ax.plot([], [], **kw_lines)

# Draw markers separately.

marker = kw['marker']

kw_markers = {

**kw,

'linestyle': 'None', # No line to draw.

}

if marker not in [None, 'None', '', ' ']:

tri_markers = ax.plot(x, y, **kw_markers)

else:

tri_markers = ax.plot([], [], **kw_markers)

return tri_lines + tri_markers

</pre></div>

</div>

</div>

Last updated on Feb 09, 2020.

Created using

<a href="http://sphinx-doc.org/">Sphinx</a> 1.8.5.

Doc version v3.1.3-2-g782f6ef56.

</div>

(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){

(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),

m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)

})(window,document,'script','//www.google-analytics.com/analytics.js','ga');

ga('create', 'UA-55954603-1', 'auto');

ga('send', 'pageview');

</script>

</body>

</footer>

</html>

matplotlib.github.com/_modules/matplotlib/tri/triplot.html at master · 2236zml/matplotlib.github.com · GitHub

Expand file tree

Breadcrumbs

triplot.html

Latest commit

History

Breadcrumbs

triplot.html

File metadata and controls