kopia lustrzana https://gitlab.com/Zwarf/picplanner
Calculate sun, moon and milky way rise, upper culmination and set
Zwarf
rodzic
0303b38b0c
commit
706bb24bed
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@ -5,8 +5,8 @@
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<p> A GTK application for photographers using GNU Linux or especially Linux phones. It can be used to calculate the position of the Sun, Moon and Milky Way in order to plan the position and time for a photograph.</p>
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## The Idea
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People who love to photograph know the biggest problem is being at the right spot at the right time.
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Therefore landscape pictures should be planned before visiting the place of choice. To plan the location it is important to know the positon of the sun, moon and sometimes also the milky way.
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People who love to photograph know, the biggest problem is being at the right spot at the right time.
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Therefore, landscape pictures should be planned before visiting the place of choice. To plan the location it is important to know the positon of the sun, moon and sometimes also the milky way.
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Where to find the sun at which time is most of the time easy to guess but when is the sunset? And for the milky way normally nobody knows where to find it in the night sky at which time at a specific location.
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This small program should answer all these questions.
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@ -41,7 +41,7 @@ Some of these formulas are from the excellent book by Jean Meeus "Astronomical A
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## Build
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At the moment this application is NOT functional and I only test this application with Gnome Builder.
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At the moment this application is NOT fully functional.
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```diff
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git clone https://gitlab.com/Zwarf/picplanner.git
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@ -204,21 +204,42 @@ double
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int
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*picplanner_get_rise_upper_set_index (double *coordinates_array)
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*picplanner_get_index_rise_upper_set (double *coordinates_array)
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{
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int rise = -1;
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int upper = -1;
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int upper = 0;
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int set = -1;
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int *rise_upper_set_array = malloc (sizeof (int) * 2);
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double upper_max = coordinates_array[0+1];
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double last_elevation = coordinates_array[0+1];
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for (int i=0; i<NUM_DATA_POINTS; i++)
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{
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double elevation = coordinates_array[i*2+1];
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if (elevation > upper_max)
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{
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upper = i;
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upper_max = elevation;
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}
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if (last_elevation < 0 && elevation > 0)
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{
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rise = i;
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}
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if (last_elevation > 0 && elevation < 0)
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{
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set = i;
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}
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last_elevation = elevation;
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}
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rise_upper_set_array[0] = rise;
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rise_upper_set_array[1] = upper;
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rise_upper_set_array[1] = set;
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rise_upper_set_array[2] = set;
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return rise_upper_set_array;
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}
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@ -44,4 +44,4 @@ double
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double time_sidereal);
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int
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*picplanner_get_rise_upper_set_index (double *coordinates_array);
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*picplanner_get_index_rise_upper_set (double *coordinates_array);
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@ -76,20 +76,69 @@ picplanner_overview_set_sun (GDateTime *date_time,
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GDateTime *date_time_set;
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(void) coordinates_array;
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date_time_rise = g_date_time_add_minutes (date_time, -12+index_rise_upper_set[0]*24*60/NUM_DATA_POINTS);
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date_time_upper = g_date_time_add_minutes (date_time, -12+index_rise_upper_set[1]*24*60/NUM_DATA_POINTS);
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date_time_set = g_date_time_add_minutes (date_time, -12+index_rise_upper_set[2]*24*60/NUM_DATA_POINTS);
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date_time_rise = g_date_time_add_minutes (date_time, index_rise_upper_set[0]*24*60/NUM_DATA_POINTS-12*60);
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date_time_upper = g_date_time_add_minutes (date_time, index_rise_upper_set[1]*24*60/NUM_DATA_POINTS-12*60);
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date_time_set = g_date_time_add_minutes (date_time, index_rise_upper_set[2]*24*60/NUM_DATA_POINTS-12*60);
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g_print ("Rise: %d:%d\n",
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g_print ("Sun Rise: %d:%d ",
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g_date_time_get_hour (date_time_rise),
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g_date_time_get_minute (date_time_rise));
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g_print ("Upper: %d:%d\n",
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g_print ("Upper: %d:%d ",
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g_date_time_get_hour (date_time_upper),
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g_date_time_get_minute (date_time_upper));
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g_print ("Set: %d:%d\n",
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g_date_time_get_hour (date_time_set),
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g_date_time_get_minute (date_time_set));
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}
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void
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picplanner_overview_set_moon (GDateTime *date_time,
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double *coordinates_array,
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int *index_rise_upper_set)
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{
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GDateTime *date_time_rise;
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GDateTime *date_time_upper;
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GDateTime *date_time_set;
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(void) coordinates_array;
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date_time_rise = g_date_time_add_minutes (date_time, index_rise_upper_set[0]*24*60/NUM_DATA_POINTS-12*60);
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date_time_upper = g_date_time_add_minutes (date_time, index_rise_upper_set[1]*24*60/NUM_DATA_POINTS-12*60);
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date_time_set = g_date_time_add_minutes (date_time, index_rise_upper_set[2]*24*60/NUM_DATA_POINTS-12*60);
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g_print ("Moon Rise: %d:%d ",
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g_date_time_get_hour (date_time_rise),
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g_date_time_get_minute (date_time_rise));
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g_print ("Upper: %d:%d ",
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g_date_time_get_hour (date_time_upper),
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g_date_time_get_minute (date_time_upper));
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g_print ("Set: %d:%d\n",
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g_date_time_get_hour (date_time_set),
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g_date_time_get_minute (date_time_set));
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}
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void
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picplanner_overview_set_milky_way (GDateTime *date_time,
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double *coordinates_array,
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int *index_rise_upper_set)
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{
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GDateTime *date_time_rise;
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GDateTime *date_time_upper;
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GDateTime *date_time_set;
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(void) coordinates_array;
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date_time_rise = g_date_time_add_minutes (date_time, index_rise_upper_set[0]*24*60/NUM_DATA_POINTS-12*60);
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date_time_upper = g_date_time_add_minutes (date_time, index_rise_upper_set[1]*24*60/NUM_DATA_POINTS-12*60);
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date_time_set = g_date_time_add_minutes (date_time, index_rise_upper_set[2]*24*60/NUM_DATA_POINTS-12*60);
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g_print ("Milky Way: Rise: %d:%d ",
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g_date_time_get_hour (date_time_rise),
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g_date_time_get_minute (date_time_rise));
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g_print ("Upper: %d:%d ",
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g_date_time_get_hour (date_time_upper),
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g_date_time_get_minute (date_time_upper));
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g_print ("Set: %d:%d\n",
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g_date_time_get_hour (date_time_set),
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g_date_time_get_minute (date_time_set));
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}
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@ -24,5 +24,13 @@ void
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picplanner_overview_set_sun (GDateTime *date_time,
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double *coordinates_array,
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int *index_rise_upper_set);
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void
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picplanner_overview_set_moon (GDateTime *date_time,
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double *coordinates_array,
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int *index_rise_upper_set);
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void
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picplanner_overview_set_milky_way (GDateTime *date_time,
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double *coordinates_array,
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int *index_rise_upper_set);
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G_END_DECLS
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@ -98,12 +98,13 @@ static void
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input_changed (GtkWidget *self,
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gpointer user_data)
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{
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(void) user_data;
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double *array_coordinates_sun;
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double *array_coordinates_moon;
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double *array_coordinates_milky_way;
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(void) user_data;
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int *rise_upper_set_index;
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double *array_coordinates_sun;
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double *array_coordinates_moon;
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double *array_coordinates_milky_way;
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GDateTime *date_time;
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double longitude, latitude;
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double longitude, latitude;
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longitude = picplanner_overview_get_longitude (PICPLANNER_OVERVIEW (self));
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latitude = picplanner_overview_get_latitude (PICPLANNER_OVERVIEW (self));
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@ -113,7 +114,20 @@ input_changed (GtkWidget *self,
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array_coordinates_moon = picplanner_get_array_coordinates_moon (date_time, longitude, latitude);
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array_coordinates_milky_way = picplanner_get_array_coordinates_milky_way (date_time, longitude, latitude);
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picplanner_overview_set_sun (date_time, array_coordinates_sun, 1);
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rise_upper_set_index = picplanner_get_index_rise_upper_set (array_coordinates_sun);
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picplanner_overview_set_sun (date_time,
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array_coordinates_sun,
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rise_upper_set_index);
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rise_upper_set_index = picplanner_get_index_rise_upper_set (array_coordinates_moon);
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picplanner_overview_set_moon (date_time,
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array_coordinates_sun,
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rise_upper_set_index);
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rise_upper_set_index = picplanner_get_index_rise_upper_set (array_coordinates_milky_way);
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picplanner_overview_set_milky_way (date_time,
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array_coordinates_sun,
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rise_upper_set_index);
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}
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