aboutsummaryrefslogtreecommitdiff
path: root/libcrystfel/src
diff options
context:
space:
mode:
authorThomas White <taw@bitwiz.org.uk>2011-08-28 04:29:43 -0700
committerThomas White <taw@physics.org>2012-02-22 15:27:42 +0100
commit2318ae07fa5baaead4c1bc55bc4e63694c1942dc (patch)
tree85a7397ad3f58e4d2d58a91eac0e5cc682e02282 /libcrystfel/src
parent0f7fc1d4d2e8022a1166e17ccd694f1d1b855d67 (diff)
Hooks for estimation of maximum resolution for each image
Diffstat (limited to 'libcrystfel/src')
-rw-r--r--libcrystfel/src/image.h2
-rw-r--r--libcrystfel/src/peaks.c28
-rw-r--r--libcrystfel/src/peaks.h3
-rw-r--r--libcrystfel/src/reflist-utils.c37
-rw-r--r--libcrystfel/src/reflist-utils.h3
-rw-r--r--libcrystfel/src/stream.c9
6 files changed, 82 insertions, 0 deletions
diff --git a/libcrystfel/src/image.h b/libcrystfel/src/image.h
index 4d4ac2d7..5f11b425 100644
--- a/libcrystfel/src/image.h
+++ b/libcrystfel/src/image.h
@@ -84,6 +84,7 @@ typedef struct _imagefeaturelist ImageFeatureList;
* double osf;
* double profile_radius;
* int pr_dud;
+ * double diffracting_resolution;
*
* int width;
* int height;
@@ -150,6 +151,7 @@ struct image {
double osf; /* Overall scaling factor */
double profile_radius; /* Radius of reflection */
int pr_dud; /* Post refinement failed */
+ double diffracting_resolution; /* Max 1/d in m^-1 */
int width;
int height;
diff --git a/libcrystfel/src/peaks.c b/libcrystfel/src/peaks.c
index 82ce1cf3..0d72e514 100644
--- a/libcrystfel/src/peaks.c
+++ b/libcrystfel/src/peaks.c
@@ -290,6 +290,34 @@ int integrate_peak(struct image *image, int cfs, int css,
}
+void estimate_resolution(RefList *list, UnitCell *cell,
+ double *min, double *max)
+{
+ Reflection *refl;
+ RefListIterator *iter;
+
+ for ( refl = first_refl(list, &iter);
+ refl != NULL;
+ refl = next_refl(refl, iter) )
+ {
+ double one_over_d;
+ signed int h, k, l;
+
+ get_indices(refl, &h, &k, &l);
+ one_over_d = 2.0 * resolution(cell, h, k, l);
+
+ if ( one_over_d > *max ) *max = one_over_d;
+ if ( one_over_d < *min ) *min = one_over_d;
+
+ /* FIXME: Implement this */
+
+ }
+
+ *min = 0.0;
+ *max = 0.0;
+}
+
+
static void search_peaks_in_panel(struct image *image, float threshold,
float min_gradient, float min_snr,
struct panel *p)
diff --git a/libcrystfel/src/peaks.h b/libcrystfel/src/peaks.h
index 9d475ea9..88dab26d 100644
--- a/libcrystfel/src/peaks.h
+++ b/libcrystfel/src/peaks.h
@@ -35,4 +35,7 @@ extern int integrate_peak(struct image *image, int cfs, int css,
double *pbg, double *pmax, double *sigma,
int do_polar, int centroid, int bgsub);
+extern void estimate_resolution(RefList *list, UnitCell *cell,
+ double *min, double *max);
+
#endif /* PEAKS_H */
diff --git a/libcrystfel/src/reflist-utils.c b/libcrystfel/src/reflist-utils.c
index c13b7bcf..66bd377e 100644
--- a/libcrystfel/src/reflist-utils.c
+++ b/libcrystfel/src/reflist-utils.c
@@ -434,3 +434,40 @@ double max_intensity(RefList *list)
return max;
}
+
+
+/**
+ * res_cutoff:
+ * @list: A %RefList
+ *
+ * Returns: A new %RefList with resolution cutoff applied
+ **/
+RefList *res_cutoff(RefList *list, UnitCell *cell, double min, double max)
+{
+ Reflection *refl;
+ RefListIterator *iter;
+ RefList *new;
+
+ new = reflist_new();
+
+ for ( refl = first_refl(list, &iter);
+ refl != NULL;
+ refl = next_refl(refl, iter) )
+ {
+ double one_over_d;
+ signed int h, k, l;
+ Reflection *n;
+
+ get_indices(refl, &h, &k, &l);
+
+ one_over_d = 2.0 * resolution(cell, h, k, l);
+ if ( one_over_d < min ) continue;
+ if ( one_over_d > max ) continue;
+
+ n = add_refl(new, h, k, l);
+ copy_data(n, refl);
+ }
+
+ reflist_free(list);
+ return new;
+}
diff --git a/libcrystfel/src/reflist-utils.h b/libcrystfel/src/reflist-utils.h
index c451954b..2da0dec1 100644
--- a/libcrystfel/src/reflist-utils.h
+++ b/libcrystfel/src/reflist-utils.h
@@ -45,4 +45,7 @@ extern void resolution_limits(RefList *list, UnitCell *cell,
extern double max_intensity(RefList *list);
+extern RefList *res_cutoff(RefList *list, UnitCell *cell,
+ double min, double max);
+
#endif /* REFLIST_UTILS_H */
diff --git a/libcrystfel/src/stream.c b/libcrystfel/src/stream.c
index ce948109..b713e399 100644
--- a/libcrystfel/src/stream.c
+++ b/libcrystfel/src/stream.c
@@ -241,6 +241,15 @@ void write_chunk(FILE *ofh, struct image *i, struct hdfile *hdfile, int f)
fprintf(ofh, "photon_energy_eV = %f\n",
J_to_eV(ph_lambda_to_en(i->lambda)));
+ if ( i->reflections != NULL ) {
+
+ fprintf(ofh, "diffraction_resolution_limit"
+ " = %.2f nm^-1 or %.2f A\n",
+ i->diffracting_resolution/1e9,
+ 1e9 / i->diffracting_resolution);
+
+ }
+
if ( i->det != NULL ) {
int j;