38 lines
1.1 KiB
C
Executable File
38 lines
1.1 KiB
C
Executable File
/*
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Data structures for geometric elements and functions that operate on them.
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Defines the TESSEROID, SPHERE, and PRISM structures.
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*/
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#ifndef _TESSEROIDS_GEOMETRY_H_
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#define _TESSEROIDS_GEOMETRY_H_
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/* Store information on a tesseroid */
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typedef struct tess_struct {
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/* s, n, w, e in degrees. r1 and r2 are the smaller and larger radius */
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double density; /* in SI units */
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double w; /* western longitude border in degrees */
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double e; /* eastern longitude border in degrees */
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double s; /* southern latitude border in degrees */
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double n; /* northern latitude border in degrees */
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double r1; /* smallest radius border in SI units */
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double r2; /* largest radius border in SI units */
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double suscept; /* magnetic susceptibility */
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double Bx; /* x-component of ambient magnetic field */
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double By; /* y-component of ambient magnetic field */
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double Bz; /* z-component of ambient magnetic field */
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double cos_a1;
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double sin_a1;
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double cos_b1;
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double sin_b1;
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//double Rx;
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//double Ry;
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//double Rz;
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} TESSEROID;
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void split_tess(TESSEROID tess, TESSEROID *split);
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#endif
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