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authorThomas White <taw@physics.org>2011-04-12 13:22:28 +0200
committerThomas White <taw@physics.org>2012-02-22 15:27:24 +0100
commitee7136039eb5d43fbd3e8a77cbdb8fea94b98468 (patch)
tree7b16604eac3525d45715eb172e23dcae2ddf00e3 /src
parent8cd01313ac0b438195549d0bd46af4df8c5254c0 (diff)
Add get_q_for_panel()
Diffstat (limited to 'src')
-rw-r--r--src/detector.c31
-rw-r--r--src/detector.h3
2 files changed, 23 insertions, 11 deletions
diff --git a/src/detector.c b/src/detector.c
index 0b4bf2fa..0caf621e 100644
--- a/src/detector.c
+++ b/src/detector.c
@@ -63,25 +63,18 @@ static int dir_conv(const char *a, double *sx, double *sy)
}
-struct rvec get_q(struct image *image, double fs, double ss,
- double *ttp, double k)
+struct rvec get_q_for_panel(struct panel *p, double fs, double ss,
+ double *ttp, double k)
{
struct rvec q;
double twotheta, r, az;
double rx, ry;
- struct panel *p;
double xs, ys;
- /* Determine which panel to use */
- const unsigned int x = fs;
- const unsigned int y = ss;
- p = find_panel(image->det, x, y);
- assert(p != NULL);
-
/* Convert xs and ys, which are in fast scan/slow scan coordinates,
* to x and y */
- xs = (fs-(double)p->min_fs)*p->fsx + (ss-(double)p->min_ss)*p->ssx;
- ys = (fs-(double)p->min_fs)*p->fsy + (ss-(double)p->min_ss)*p->ssy;
+ xs = fs*p->fsx + ss*p->ssx;
+ ys = fs*p->fsy + ss*p->ssy;
rx = (xs + p->cnx) / p->res;
ry = (ys + p->cny) / p->res;
@@ -101,6 +94,22 @@ struct rvec get_q(struct image *image, double fs, double ss,
}
+struct rvec get_q(struct image *image, double fs, double ss,
+ double *ttp, double k)
+{
+ struct panel *p;
+ const unsigned int fsi = fs;
+ const unsigned int ssi = ss; /* Explicit rounding */
+
+ /* Determine which panel to use */
+ p = find_panel(image->det, fsi, ssi);
+ assert(p != NULL);
+
+ return get_q_for_panel(p, fs-(double)p->min_fs, ss-(double)p->min_ss,
+ ttp, k);
+}
+
+
int in_bad_region(struct detector *det, double fs, double ss)
{
double rx, ry;
diff --git a/src/detector.h b/src/detector.h
index 86e7eea3..fce60ff6 100644
--- a/src/detector.h
+++ b/src/detector.h
@@ -86,6 +86,9 @@ struct detector
extern struct rvec get_q(struct image *image, double fs, double ss,
double *ttp, double k);
+extern struct rvec get_q_for_panel(struct panel *p, double fs, double ss,
+ double *ttp, double k);
+
extern double get_tt(struct image *image, double xs, double ys);
extern int in_bad_region(struct detector *det, double fs, double ss);