[genius] Thu Oct 14 19:07:05 2021 Jiri (George) Lebl <jirka 5z com>

[Jiri (George) Lebl <jirka src gnome org>]

commit 95fe15abfbbbbb7eeea3fde19eb314d4def4f067
Author: Jiri (George) Lebl <jiri lebl gmail com>
Date:   Thu Oct 14 19:07:10 2021 -0500

    Thu Oct 14 19:07:05 2021  Jiri (George) Lebl <jirka 5z com>
    
            * src/graphing.c: improve slightly again efficiency, and make
              rotation by holding down a key work better.

 ChangeLog      |  5 +++++
 src/graphing.c | 19 +++++++++++++++----
 2 files changed, 20 insertions(+), 4 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index 6d8baeed..f398db23 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Thu Oct 14 19:07:05 2021  Jiri (George) Lebl <jirka 5z com>
+
+       * src/graphing.c: improve slightly again efficiency, and make
+         rotation by holding down a key work better.
+
 Thu Oct 14 17:04:17 2021  Jiri (George) Lebl <jirka 5z com>
 
        * src/graphing.c: surface plots got recomputed twice, so only compute
diff --git a/src/graphing.c b/src/graphing.c
index 01618bb2..5970329b 100644
--- a/src/graphing.c
+++ b/src/graphing.c
@@ -2091,10 +2091,15 @@ plot_canvas_key_press_event (GtkWidget *widget, GdkEventKey *event, gpointer use
                if (plot_mode == MODE_SURFACE &&
                    surface_plot != NULL &&
                    plot_in_progress == 0) {
+                       plot_in_progress++;
                        gtk_plot3d_rotate_z (GTK_PLOT3D (surface_plot), 360-10);
 
                        gtk_plot_canvas_paint (GTK_PLOT_CANVAS (plot_canvas));
                        gtk_plot_canvas_refresh (GTK_PLOT_CANVAS (plot_canvas));
+
+                       while (gtk_events_pending ())
+                               gtk_main_iteration ();
+                       plot_in_progress--;
                }
                break;
        case GDK_KEY_Right:
@@ -2103,10 +2108,15 @@ plot_canvas_key_press_event (GtkWidget *widget, GdkEventKey *event, gpointer use
                if (plot_mode == MODE_SURFACE &&
                    surface_plot != NULL &&
                    plot_in_progress == 0) {
+                       plot_in_progress++;
                        gtk_plot3d_rotate_z (GTK_PLOT3D (surface_plot), 10);
 
                        gtk_plot_canvas_paint (GTK_PLOT_CANVAS (plot_canvas));
                        gtk_plot_canvas_refresh (GTK_PLOT_CANVAS (plot_canvas));
+
+                       while (gtk_events_pending ())
+                               gtk_main_iteration ();
+                       plot_in_progress--;
                }
                break;
        default: break;
@@ -5141,10 +5151,6 @@ plot_surface_functions (gboolean do_window_present, gboolean fit_function)
                gtk_plot_data_set_y (GTK_PLOT_DATA (surface_data), surface_data_y);
                gtk_plot_data_set_z (GTK_PLOT_DATA (surface_data), surface_data_z);
                gtk_plot_data_set_numpoints (GTK_PLOT_DATA (surface_data), surface_data_len);
-               gtk_plot_surface_build_mesh (GTK_PLOT_SURFACE (surface_data));
-
-               gtk_plot_surface_recalc_nodes (GTK_PLOT_SURFACE (surface_data));
-
 
                gtk_plot_add_data (GTK_PLOT (surface_plot),
                                   surface_data);
@@ -5171,6 +5177,11 @@ plot_surface_functions (gboolean do_window_present, gboolean fit_function)
        gtk_plot3d_autoscale (GTK_PLOT3D (surface_plot));
        */
 
+       if (surface_data != NULL) {
+               gtk_plot_surface_build_mesh (GTK_PLOT_SURFACE (surface_data));
+       }
+
+
        /* could be whacked by closing the window or some such */
        if (surface_plot != NULL) {
                if (surfaceplot_draw_legends)