initial upload

cookbook/simple_tess/model.txt

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+# Test tesseroid model file
+10 20 10 20 0 -50000 200
+-20 -10 -20 -10 0 -30000 -500

cookbook/simple_tess/plot.py

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+"""
+Plot the columns of the output files
+"""
+import sys
+from matplotlib import pyplot as plt
+from mpl_toolkits.basemap import Basemap
+import numpy as np
+
+# Set up a projection
+bm = Basemap(projection='ortho', lon_0=0, lat_0=0,
+             resolution='l', area_thresh=10000)
+
+# Load the data and make them into matrices
+data = np.loadtxt(sys.argv[1], unpack=True)
+shape = (int(sys.argv[2]), int(sys.argv[3]))
+lon = data[0].reshape(shape)
+lat = data[1].reshape(shape)
+glon, glat = bm(lon, lat)
+
+plt.figure(figsize=(14, 12))
+for i, value in enumerate(data[3:]):
+    plt.subplot(3, 4, i + 1)
+    plt.title("Column %d" % (i + 4))
+    bm.drawcoastlines()
+    bm.drawmapboundary()
+    bm.contourf(glon, glat, value.reshape(shape), 15, cmap=plt.cm.RdBu_r)
+    plt.colorbar(orientation="horizontal", pad=0, aspect=30)
+plt.tight_layout()
+plt.savefig('output.png')

cookbook/simple_tess/simple_tess.bat

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+:: Generate a regular grid, pipe it to all the computation programs,
+:: and write the result to output.txt
+
+tessgrd -r-45/45/-45/45 -b101/101 -z260e03 | ^
+tesspot model.txt | ^
+tessgx model.txt | tessgy model.txt | tessgz model.txt | ^
+tessgxx model.txt  | tessgxy model.txt  | ^
+tessgxz model.txt  | tessgyy model.txt  | ^
+tessgyz model.txt  | tessgzz model.txt -v -llog.txt > output.txt
+
+:: Make a plot with the columns of output.txt
+python plot.py output.txt 101 101

cookbook/simple_tess/simple_tess.sh

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+#!/bin/bash
+
+# Generate a regular grid, pipe it to all the computation programs,
+# and write the result to output.txt
+
+tessgrd -r-45/45/-45/45 -b101/101 -z260e03 | \
+tesspot model.txt | \
+tessgx model.txt | tessgy model.txt | tessgz model.txt | \
+tessgxx model.txt  | tessgxy model.txt  | \
+tessgxz model.txt  | tessgyy model.txt  | \
+tessgyz model.txt  | tessgzz model.txt -v -llog.txt > output.txt
+
+# Make a plot with the columns of output.txt
+python plot.py output.txt 101 101