jupyter notebook for heatmap snippet, with three options

.gitignore

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+.ipynb_checkpoints
+

README.md

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 # snippets
 Scripts, settings and environment options for better research and analysis
+
+## tri_heatmap: Heatmaps in matplotlib
+This directory includes a notebook that gives some guidance on plotting 2D
+heatmaps in matplotlib given the existence of X, Y, Z experimental data.  Note
+this was developed for and is thus ideal for an irregular X-Y grid.

tri_heatmap/README.md

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+# Heatmaps in matplotlib
+Given X, Y, Z experimental data suited to heatmap plotting, one can follow the
+steps in this notebook to get a surface plot with a colorbar.  This notebook
+shows three varieties of surface plots using toy data.
+
+For all plots, it first uses triangulation on the X, Y data to form a
+triangular grid (and normalizes the colors to the z range).  There are three
+methods used to plot the surface:
+1. tricontourf
+2. tripcolor with flat shading
+3. tripcolor with Gourard shading
+
+Note that the color bar is only smoothed with tripcolor.