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-rw-r--r--src/detector.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/detector.h b/src/detector.h
index a232b712..6821ad27 100644
--- a/src/detector.h
+++ b/src/detector.h
@@ -78,5 +78,7 @@ extern void get_pixel_extents(struct detector *det,
extern void fill_in_values(struct detector *det, struct hdfile *f);
+extern int reverse_2d_mapping(double x, double y, double *pfs, double *pss,
+ struct detector *det);
#endif /* DETECTOR_H */