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/* Copyright (c) 1997 Regents of the University of California */ |
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/* SCCSid "$SunId$ LBL" */ |
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/* RCSid: $Id$ */ |
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/* |
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* Header file for 3D warping routines. |
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*/ |
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typedef float W3VEC[3]; /* vector type for 3D warp maps */ |
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struct grid3d { |
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W3VEC gmin, gmax; /* grid boundaries */ |
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GNDX gn; /* grid dimensions */ |
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W3VEC gstep; /* grid voxel size */ |
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unsigned char flags; /* interpolation flags */ |
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GNDX gn; /* grid dimensions */ |
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W3VEC gmin, gstep; /* grid corner and voxel size */ |
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LUTAB gtab; /* grid lookup table */ |
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}; /* a regular, sparse warping grid */ |
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typedef struct { |
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W3VEC *ip, *op; /* discrete input/output pairs */ |
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W3VEC *ip, *ov; /* discrete input/displ. pairs */ |
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int npts; /* number of point pairs */ |
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W3VEC llim, ulim; /* lower and upper input limits */ |
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double d2min, d2max; /* min. and max. point distance^2 */ |
