mirror of
https://github.com/paparazzi/paparazzi.git
synced 2026-05-13 02:52:13 +08:00
Felix Ruess
84 lines
2.7 KiB
C
84 lines
2.7 KiB
C
#include <gtkdatabox.h>
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#include <gtkdatabox_points.h>
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#include <gtkdatabox_lines.h>
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#include <gtkdatabox_bars.h>
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#include <gtkdatabox_grid.h>
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#include <gtkdatabox_cross_simple.h>
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#include <gtkdatabox_markers.h>
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#include <string.h>
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#define NB_POINTS 2000
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#define NB_POINTS_BY_STEP 1
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//500
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const GdkColor colors[] = {{65535, 0, 0}, {0, 65535, 0}, {0, 0, 65535}, {0, 0, 0}};
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#define NB_COLORS 4
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#define REFRESH_RATE 166 /* ms */
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static gboolean timeout_callback(gpointer data);
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GtkWidget* sliding_plot_new(guint nb_plot) {
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GtkWidget* databox = gtk_databox_new ();
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g_object_set_data(G_OBJECT(databox), "nb_plot", (gpointer)nb_plot);
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gfloat *X = g_new0 (gfloat, NB_POINTS);
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g_object_set_data(G_OBJECT(databox), "X", X);
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gpointer *Y = g_new0 (gpointer, nb_plot);
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g_object_set_data(G_OBJECT(databox), "Y", Y);
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guint nb_data = 0;
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g_object_set_data(G_OBJECT(databox), "nb_data", (gpointer)nb_data);
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guint _time = 0;
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g_object_set_data(G_OBJECT(databox), "time", (gpointer)_time);
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guint i;
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for (i=0; i< nb_plot; i++) {
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Y[i] = g_new0 (gfloat, NB_POINTS);
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GtkDataboxGraph *graph = gtk_databox_lines_new (NB_POINTS, X, Y[i], (GdkColor*)&(colors[i%NB_COLORS]), 1);
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gtk_databox_graph_add (GTK_DATABOX (databox), graph);
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}
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// GtkDataboxGraph *grid = gtk_databox_grid_new (10, 10, (GdkColor*)&(colors[3]), 2);
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// gtk_databox_graph_add (GTK_DATABOX (databox), grid);
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g_timeout_add(REFRESH_RATE, timeout_callback, databox);
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return databox;
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}
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void sliding_plot_update(GtkWidget* plot, float* values) {
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guint i, j;
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gfloat *X = g_object_get_data(G_OBJECT(plot), "X");
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gpointer *Y = g_object_get_data(G_OBJECT(plot), "Y");
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guint nb_data = (guint)g_object_get_data(G_OBJECT(plot), "nb_data");
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guint _time = (guint)g_object_get_data(G_OBJECT(plot), "time");
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guint nb_plot = (guint)g_object_get_data(G_OBJECT(plot), "nb_plot");
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if (nb_data >= NB_POINTS) {
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nb_data -= NB_POINTS_BY_STEP;
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guint mem_to_move = (NB_POINTS - NB_POINTS_BY_STEP)*sizeof(gfloat);
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memmove(X, &(X[NB_POINTS_BY_STEP]), mem_to_move);
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for (i=0; i< nb_plot; i++) {
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gfloat* y = Y[i];
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memmove(y, &(y[NB_POINTS_BY_STEP]), mem_to_move);
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}
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}
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for (j=nb_data; j< NB_POINTS; j++) {
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X[j] = _time;
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for (i=0; i< nb_plot; i++) {
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gfloat* y = Y[i];
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y[j] = values[i];
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}
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}
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_time++;
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g_object_set_data(G_OBJECT(plot), "time", (gpointer)_time);
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nb_data++;
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g_object_set_data(G_OBJECT(plot), "nb_data", (gpointer)nb_data);
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// gtk_databox_auto_rescale (GTK_DATABOX (plot), 0.);
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}
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static gboolean timeout_callback(gpointer user_data) {
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GtkDatabox* databox = GTK_DATABOX (user_data);
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gtk_databox_auto_rescale (databox, 0.);
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return TRUE;
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}
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