diff options
Diffstat (limited to 'src/crystfelimageview.c')
| -rw-r--r-- | src/crystfelimageview.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/src/crystfelimageview.c b/src/crystfelimageview.c index 74d8cca5..88cfb149 100644 --- a/src/crystfelimageview.c +++ b/src/crystfelimageview.c @@ -603,6 +603,48 @@ static void draw_refls(cairo_t *cr, } +static double ring_radius(double d, double wl, double z) +{ + double theta = asin(wl / (2.0*d)); + return z * tan(2.0*theta); +} + + +static void show_ring(cairo_t *cr, double wl, double mean_z, + double d, const char *label, + double r, double g, double b) +{ + cairo_text_extents_t size; + double bs, lw; + double radius = ring_radius(d, wl, mean_z); + + if ( isnan(radius) ) return; + + bs = 17.0; + lw = 1.0; + cairo_device_to_user_distance(cr, &bs, &lw); + bs = fabs(bs); + lw = fabs(lw); + + cairo_save(cr); + + cairo_arc(cr, 0.0, 0.0, radius, 0.0, 2.0*M_PI); + cairo_set_source_rgb(cr, r, g, b); + cairo_set_line_width(cr, lw); + cairo_stroke(cr); + + cairo_rotate(cr, -M_PI/4.0); + cairo_scale(cr, 1.0, -1.0); + cairo_set_font_size(cr, bs); + cairo_text_extents(cr, label, &size); + cairo_translate(cr, -size.width/2.0, radius-5.0*lw); + cairo_show_text(cr, label); + cairo_fill(cr); + + cairo_restore(cr); +} + + static double crystal_cols[][3] = { {0.0, 1.0, 0.0}, /* bright green */ @@ -673,6 +715,24 @@ static gint draw_sig(GtkWidget *window, cairo_t *cr, CrystFELImageView *iv) } } + if ( iv->resolution_rings ) { + double wl = iv->image->lambda; + double mean_z = detgeom_mean_camera_length(iv->image->detgeom); + if ( !isnan(mean_z) ) { + show_ring(cr, wl, mean_z, 10.0e-10, "10A", 1.0, 0.0, 0.0); + show_ring(cr, wl, mean_z, 9.0e-10, "9A", 1.0, 0.0, 0.0); + show_ring(cr, wl, mean_z, 8.0e-10, "8A", 1.0, 0.0, 0.0); + show_ring(cr, wl, mean_z, 7.0e-10, "7A", 1.0, 0.5, 0.0); + show_ring(cr, wl, mean_z, 6.0e-10, "6A", 1.0, 1.0, 0.0); + show_ring(cr, wl, mean_z, 5.0e-10, "5A", 0.0, 1.0, 0.0); + show_ring(cr, wl, mean_z, 4.0e-10, "4A", 0.2, 1.0, 0.2); + show_ring(cr, wl, mean_z, 3.0e-10, "3A", 0.4, 1.0, 0.4); + show_ring(cr, wl, mean_z, 2.0e-10, "2A", 0.6, 1.0, 0.6); + show_ring(cr, wl, mean_z, 1.0e-10, "1A", 0.8, 1.0, 0.8); + show_ring(cr, wl, mean_z, 0.5e-10, "0.5A", 1.0, 1.0, 1.0); + } + } + cairo_restore(cr); return FALSE; @@ -847,6 +907,7 @@ GtkWidget *crystfel_image_view_new() iv->label_refls = 1; iv->need_rerender = 0; iv->need_recentre = 1; + iv->resolution_rings = 0; g_signal_connect(G_OBJECT(iv), "destroy", G_CALLBACK(destroy_sig), iv); @@ -1165,3 +1226,12 @@ void crystfel_image_view_set_refl_box_size(CrystFELImageView *iv, iv->need_rerender = 1; redraw(iv); } + + +void crystfel_image_view_set_resolution_rings(CrystFELImageView *iv, + int rings) +{ + iv->resolution_rings = rings; + iv->need_rerender = 1; + redraw(iv); +} |