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authorThomas White <taw@physics.org>2022-12-14 12:26:23 +0100
committerThomas White <taw@physics.org>2022-12-14 12:26:23 +0100
commitcfcf9bd5f8f392caa693639303b36ae5c1f92d76 (patch)
treeab1a9eb13abb077712137a9fbecaf64b258e64c9 /src
parent55d3d665c140621497d1aec44c80deb3f0e614d1 (diff)
GUI: FoM graph, part 4: y-axes
Diffstat (limited to 'src')
-rw-r--r--src/crystfelfomgraph.c42
1 files changed, 27 insertions, 15 deletions
diff --git a/src/crystfelfomgraph.c b/src/crystfelfomgraph.c
index ade0fa62..43ea6560 100644
--- a/src/crystfelfomgraph.c
+++ b/src/crystfelfomgraph.c
@@ -162,38 +162,48 @@ static void draw_x_axis(cairo_t *cr, double *tics, int n_tics,
static void draw_y_axis(cairo_t *cr, double h, double oy,
- double y1, double y2)
+ double y1, double y2, const char *name)
{
int i;
+ cairo_text_extents_t ext;
cairo_new_path(cr);
- cairo_move_to(cr, oy, oy);
- cairo_line_to(cr, oy, h);
+ cairo_move_to(cr, 0, oy);
+ cairo_line_to(cr, 0, h);
cairo_set_line_width(cr, 1.0);
cairo_stroke(cr);
- for ( i=0; i<5; i++ ) {
+ for ( i=0; i<=5; i++ ) {
- cairo_text_extents_t ext;
char label[128];
- double y;
+ double y_pos;
+ double y_val;
- y = oy + (h-oy) * i*(y2-y1)/5.0;
+ y_val = y1 + i*(y2-y1)/5.0;
+ y_pos = oy + (h-oy) * (y_val-y1)/(y2-y1);
- cairo_move_to(cr, 0.0, y);
- cairo_line_to(cr, -5.0, y);
+ cairo_move_to(cr, 0.0, y_pos);
+ cairo_line_to(cr, -5.0, y_pos);
cairo_set_line_width(cr, 1.0);
cairo_stroke(cr);
cairo_save(cr);
- snprintf(label, 127, "%.1f", y);
+ snprintf(label, 127, "%.2f", y_val);
cairo_text_extents(cr, label, &ext);
- cairo_move_to(cr, -ext.x_advance-3.0, y-ext.y_advance/2.0);
+ cairo_move_to(cr, -ext.width-5.0, y_pos-ext.height/2.0);
cairo_scale(cr, 1.0, -1.0);
cairo_show_text(cr, label);
cairo_restore(cr);
}
+
+ cairo_save(cr);
+ cairo_text_extents(cr, name, &ext);
+ cairo_move_to(cr, -ext.height-3.0, oy+(h-oy+ext.x_advance)/2.0);
+ cairo_scale(cr, 1.0, -1.0);
+ cairo_rotate(cr, M_PI_2);
+ cairo_show_text(cr, name);
+ cairo_restore(cr);
}
@@ -210,7 +220,8 @@ static gint draw_sig(GtkWidget *window, cairo_t *cr, CrystFELFoMGraph *fg)
double border = 10.0;
double w = fg->visible_width;
double h = fg->visible_height;
- double axsp = 20.0;
+ double axsp = 20.0; /* Vertical space for x-axis labels */
+ double yaxsp = 30.0; /* Horizontal space for y-axis labels */
double x1 = fg->shell_centers[0];
double x2 = fg->shell_centers[fg->n_shells-1];
@@ -226,15 +237,16 @@ static gint draw_sig(GtkWidget *window, cairo_t *cr, CrystFELFoMGraph *fg)
/* y-axes (multiple) */
double ox = 0.0;
cairo_save(cr);
+ cairo_translate(cr, yaxsp, 0.0);
for ( j=0; j<fg->n_foms; j++ ) {
double col[3];
double y1, y2;
fom_colour(fg->fom_types[j], col);
fom_range(fg->fom_types[j], &y1, &y2);
cairo_set_source_rgb(cr, col[0], col[1], col[2]);
- draw_y_axis(cr, h, axsp, y1, y2);
- ox += axsp;
- cairo_translate(cr, axsp, 0.0);
+ draw_y_axis(cr, h, axsp, y1, y2, fom_name(fg->fom_types[j]));
+ ox += yaxsp;
+ cairo_translate(cr, yaxsp, 0.0);
}
cairo_restore(cr);