Handle weird unique axis variants of all point groups

1 files changed, 68 insertions, 0 deletions

diff --git a/libcrystfel/src/integer_matrix.h b/libcrystfel/src/integer_matrix.h
new file mode 100644
index 00000000..41780629
--- /dev/null
+++ b/libcrystfel/src/integer_matrix.h
@@ -0,0 +1,68 @@
+/*
+ * integer_matrix.h
+ *
+ * A small integer matrix library
+ *
+ * Copyright © 2012 Deutsches Elektronen-Synchrotron DESY,
+ *                  a research centre of the Helmholtz Association.
+ *
+ * Authors:
+ *   2012 Thomas White <taw@physics.org>
+ *
+ * This file is part of CrystFEL.
+ *
+ * CrystFEL is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * CrystFEL is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with CrystFEL.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef INTEGER_MATRIX_H
+#define INTEGER_MATRIX_H
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+/**
+ * IntegerMatrix
+ *
+ * The IntegerMatrix is an opaque data structure representing an integer matrix.
+ **/
+typedef struct _integermatrix IntegerMatrix;
+
+
+/* Alloc/dealloc */
+extern IntegerMatrix *intmat_new(unsigned int rows, unsigned int cols);
+extern void intmat_free(IntegerMatrix *m);
+
+/* Get/set */
+extern void intmat_set(IntegerMatrix *m, unsigned int i, unsigned int j,
+                       signed int v);
+extern signed int intmat_get(IntegerMatrix *m, unsigned int i, unsigned int j);
+
+/* Matrix-(int)vector multiplication */
+extern signed int *intmat_intvec_mult(IntegerMatrix *m, signed int *vec);
+
+/* Matrix-matrix multiplication */
+extern IntegerMatrix *intmat_intmat_mult(IntegerMatrix *a, IntegerMatrix *b);
+
+/* Inverse */
+extern IntegerMatrix *intmat_inverse(IntegerMatrix *m);
+
+/* Determinant */
+extern signed int intmat_det(IntegerMatrix *m);
+
+/* Diagnostics */
+extern void intmat_print(IntegerMatrix *m);
+
+#endif	/* INTEGER_MATRIX_H */