[Gpredict-svn] SF.net SVN: gpredict:[81] trunk/src

[<cs...@us...>]

Revision: 81
          http://gpredict.svn.sourceforge.net/gpredict/?rev=81&view=rev
Author:   csete
Date:     2008-09-03 22:45:47 +0000 (Wed, 03 Sep 2008)

Log Message:
-----------
Implemented controller algorithm (except device I/O).

Modified Paths:
--------------
    trunk/src/gtk-rot-ctrl.c
    trunk/src/gtk-rot-ctrl.h

Modified: trunk/src/gtk-rot-ctrl.c
===================================================================
--- trunk/src/gtk-rot-ctrl.c	2008-09-03 21:24:41 UTC (rev 80)
+++ trunk/src/gtk-rot-ctrl.c	2008-09-03 22:45:47 UTC (rev 81)
@@ -40,6 +40,7 @@
 #include <math.h>
 #include "compat.h"
 #include "sat-log.h"
+#include "predict-tools.h"
 #include "gtk-rot-knob.h"
 #include "gtk-rot-ctrl.h"
 #ifdef HAVE_CONFIG_H
@@ -135,6 +136,8 @@
 {
     ctrl->sats = NULL;
     ctrl->target = NULL;
+    ctrl->pass = NULL;
+    ctrl->qth = NULL;
     
     ctrl->tracking = FALSE;
     ctrl->busy = FALSE;
@@ -177,6 +180,14 @@
     
     GTK_ROT_CTRL (widget)->target = SAT (g_slist_nth_data (GTK_ROT_CTRL (widget)->sats, 0));
     
+    /* store QTH */
+    GTK_ROT_CTRL (widget)->qth = module->qth;
+    
+    /* get next pass for target satellite */
+    GTK_ROT_CTRL (widget)->pass = get_next_pass (GTK_ROT_CTRL (widget)->target,
+                                                 GTK_ROT_CTRL (widget)->qth,
+                                                 3.0);
+    
     /* initialise custom colors */
     gdk_rgb_find_color (gtk_widget_get_colormap (widget), &ColBlack);
     gdk_rgb_find_color (gtk_widget_get_colormap (widget), &ColWhite);
@@ -229,6 +240,21 @@
         buff = g_strdup_printf (FMTSTR, ctrl->target->el);
         gtk_label_set_text (GTK_LABEL (ctrl->ElSat), buff);
         g_free (buff);
+        
+        /* update next pass if necessary */
+        if (ctrl->pass != NULL) {
+            if (ctrl->target->aos > ctrl->pass->aos) {
+                /* update pass */
+                free_pass (ctrl->pass);
+                ctrl->pass = get_next_pass (ctrl->target, ctrl->qth, 3.0);
+                /* TODO: update polar plot */
+            }
+        }
+        else {
+            /* we don't have any current pass; store the current one */
+            ctrl->pass = get_next_pass (ctrl->target, ctrl->qth, 3.0);
+            /* TODO: update polar plot */
+        }
     }
 }
 
@@ -530,11 +556,23 @@
     i = gtk_combo_box_get_active (satsel);
     if (i >= 0) {
         ctrl->target = SAT (g_slist_nth_data (ctrl->sats, i));
+        
+        /* update next pass */
+        if (ctrl->pass != NULL)
+            free_pass (ctrl->pass);
+        ctrl->pass = get_next_pass (ctrl->target, ctrl->qth, 3.0);
     }
     else {
         sat_log_log (SAT_LOG_LEVEL_ERROR,
                      _("%s:%s: Invalid satellite selection: %d"),
                      __FILE__, __FUNCTION__, i);
+        
+        /* clear pass just in case... */
+        if (ctrl->pass != NULL) {
+            free_pass (ctrl->pass);
+            ctrl->pass = NULL;
+        }
+        
     }
 }
 
@@ -603,6 +641,9 @@
 {
     GtkRotCtrl *ctrl = GTK_ROT_CTRL (data);
     
+    /* TODO: update device */
+    
+    /* TODO: update ranges */
 }
 
 
@@ -644,16 +685,38 @@
     
     ctrl->busy = TRUE;
     
+    /* If we are tracking and the target satellite is within
+       range, set the rotor position controller knob values to
+       the target values. If the target satellite is out of range
+       set the rotor controller to 0 deg El and to the Az where the
+       target sat is expected to come up
+    */
+    if (ctrl->tracking) {
+        if (ctrl->target->el < 0.0) {
+            gdouble aosaz = 0.0;
+            
+            if (ctrl->pass != NULL) {
+                aosaz = ctrl->pass->aos_az;
+            }
+            gtk_rot_knob_set_value (GTK_ROT_KNOB (ctrl->AzSet), aosaz);
+            gtk_rot_knob_set_value (GTK_ROT_KNOB (ctrl->ElSet), 0.0);
+        }
+        else {
+            gtk_rot_knob_set_value (GTK_ROT_KNOB (ctrl->AzSet), ctrl->target->az);
+            gtk_rot_knob_set_value (GTK_ROT_KNOB (ctrl->ElSet), ctrl->target->el);
+        }
+        
+        /* TODO: Update controller thread on polar plot */
+    }
 
     if (ctrl->engaged) {
-        
-        
-        
+        /* if tolerance exceeded */
+        /* TODO: send controller values to rotator device */
+        /* TODO: read back current position from device */
+        /* TODO: update polar plot */
     }
     
-    /* update current pointing marker on polar view */
     
-    
     ctrl->busy = FALSE;
     
     return TRUE;

Modified: trunk/src/gtk-rot-ctrl.h
===================================================================
--- trunk/src/gtk-rot-ctrl.h	2008-09-03 21:24:41 UTC (rev 80)
+++ trunk/src/gtk-rot-ctrl.h	2008-09-03 22:45:47 UTC (rev 81)
@@ -72,9 +72,11 @@
     GtkWidget *DevSel;
     
     /* satellites */
-    GSList *sats;
-    sat_t  *target;
-
+    GSList *sats;       /*!< List of sats in parent module */
+    sat_t  *target;     /*!< Target satellite */
+    pass_t *pass;       /*!< Next pass of target satellite */
+    qth_t  *qth;        /*!< The QTH for this module */
+    
     guint delay;       /*!< Timeout delay. */
     guint timerid;     /*!< Timer ID */
     gdouble tolerance;  /*!< Error tolerance */


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