#include <clocale>

#include <clocale>

#include <cstring>

#include <cstring>

#include <iostream>

#include <iostream>

using namespace std;

using namespace std;

#include <cmath>

#include <cmath>

#include <iostream>

#include <iostream>

#include "Separation.h"

#include "Separation.h"

.sp

.sp

.fi

.fi

where declination is in degrees and right ascension is in hours.  This

where declination is in degrees and right ascension is in hours.  This

.TP

.TP

.B \-arc_spacing spacing

.B \-arc_spacing spacing

.TP

.TP

.B \-background background_file

.B \-background background_file

Use background_file as the background image, with the planet to be

Use background_file as the background image, with the planet to be

.TP

.TP

.B \-base_magnitude magnitude

.B \-base_magnitude magnitude

pluto, charon, random, and major.  

pluto, charon, random, and major.  

The field of view can also be centered on a satellite location using

The field of view can also be centered on a satellite location using

Cassini orbiter.  Xplanet must be compiled with SPICE support and the

Cassini orbiter.  Xplanet must be compiled with SPICE support and the

required kernels must be present.  See the README in the spice

required kernels must be present.  See the README in the spice

the field of view on NORAD ID 20580, which is the Hubble Space

the field of view on NORAD ID 20580, which is the Hubble Space

Telescope.  The appropriate TLE files must be present in this case.

Telescope.  The appropriate TLE files must be present in this case.

See the README in the satellites subdirectory for more information.

See the README in the satellites subdirectory for more information.

Using "path" will center the field of view on the direction of motion

Using "path" will center the field of view on the direction of motion

of the origin.  This direction is relative to the direction of motion

of the origin.  This direction is relative to the direction of motion

.TP

.TP

.B \-center +x+y

.B \-center +x+y

.B \-color color

.B \-color color

Set the color for the label.  The default is "red".  Any color in the

Set the color for the label.  The default is "red".  Any color in the

rgb.txt file may be used.  Colors may also be specified by RGB hex

rgb.txt file may be used.  Colors may also be specified by RGB hex

.TP

.TP

.B \-config config_file

.B \-config config_file

Use the configuration file config_file.  The format of config_file is

Use the configuration file config_file.  The format of config_file is

where xplanet looks in order to find the configuration file.

where xplanet looks in order to find the configuration file.

.TP

.TP

.TP

.TP

.B \-dynamic_origin file

.B \-dynamic_origin file

Specify an observer location.  The location is relative to the body

Specify an observer location.  The location is relative to the body

of the file must be of the form

of the file must be of the form

.nf

.nf

.sp

.sp

For example,

For example,

.nf

.nf

.sp

.sp

.sp

.sp

.fi

.fi

The specified time is ignored and the current time is used.  The range

The specified time is ignored and the current time is used.  The range

hours) is optional, but if present, it will be used in place of the

hours) is optional, but if present, it will be used in place of the

longitude.  Only the last line of the file is used.  This file may be

longitude.  Only the last line of the file is used.  This file may be

updated between renderings using a script executed with the

updated between renderings using a script executed with the

.TP

.TP

.B \-ephemeris_file filename

.B \-ephemeris_file filename

little endian binary files.  The ephemeris files found at

little endian binary files.  The ephemeris files found at

ftp://ssd.jpl.nasa.gov/pub/eph/export/unix are big endian files, but

ftp://ssd.jpl.nasa.gov/pub/eph/export/unix are big endian files, but

you do not need to do any additional byte-swapping to use them.  See

you do not need to do any additional byte-swapping to use them.  See

find the ephemeris file.

find the ephemeris file.

.TP

.TP

.B \-font fontname 

.B \-font fontname 

Set the font for the label.  Only TrueType fonts are supported.  If

Set the font for the label.  Only TrueType fonts are supported.  If

name (e.g. "Arial").

name (e.g. "Arial").

.TP

.TP

.TP

.TP

.B \-fov

.B \-fov

option are mutually exclusive.  This option has no effect if the

option are mutually exclusive.  This option has no effect if the

.TP

.TP

.B \-geometry string

.B \-geometry string

(e.g. 256x256-10+10 puts a window 256x256 pixels in size 10 pixels

(e.g. 256x256-10+10 puts a window 256x256 pixels in size 10 pixels

away from the right side and 10 pixels below the top of the root

away from the right side and 10 pixels below the top of the root

window).  The root window outside of the image will be black.  This

window).  The root window outside of the image will be black.  This

.TP

.TP

.B \-glare radius

.B \-glare radius

.TP

.TP

.B \-gmtlabel

.B \-gmtlabel

.TP

.TP

.B \-grs_longitude lon

.B \-grs_longitude lon

.TP

.TP

.B \-interpolate_origin_file

.B \-interpolate_origin_file

computes the observer position at the current time by interpolating

computes the observer position at the current time by interpolating

between values specified in the origin file.  This is useful if you

between values specified in the origin file.  This is useful if you

have spacecraft positions tabulated in an origin file, but want a real

have spacecraft positions tabulated in an origin file, but want a real

Specify the location of the label using the standard X window geometry

Specify the location of the label using the standard X window geometry

syntax.  The default position is "-15+15", or 15 pixels to the left

syntax.  The default position is "-15+15", or 15 pixels to the left

and below the top right corner of the display.  This option implies

and below the top right corner of the display.  This option implies

.TP

.TP

.B \-label_body body

.B \-label_body body

Use the specified body to calculate the sub-observer, sub-solar, and

Use the specified body to calculate the sub-observer, sub-solar, and

option.

option.

.TP

.TP

.B \-longitude longitude 

.B \-longitude longitude 

Place the observer above the specified longitude (in degrees).

Place the observer above the specified longitude (in degrees).

Longitude is positive going east, negative going west (for the earth

Longitude is positive going east, negative going west (for the earth

value is 0.

value is 0.

.TP

.TP

.B \-make_cloud_maps

.B \-make_cloud_maps

If there is an entry in the config file for cloud_map, xplanet will

If there is an entry in the config file for cloud_map, xplanet will

output a day and night image with clouds overlaid and then exit.  The

output a day and night image with clouds overlaid and then exit.  The

images default to day_clouds.jpg and night_clouds.jpg, but may be

images default to day_clouds.jpg and night_clouds.jpg, but may be

specified, the output images will be named "day_filename.extension"

specified, the output images will be named "day_filename.extension"

and "night_filename.extension".  The dimensions of the output images

and "night_filename.extension".  The dimensions of the output images

are the same as the day image.

are the same as the day image.

declination, right ascension, string, as in the example below:

declination, right ascension, string, as in the example below:

.nf

.nf

.sp

.sp

.sp

.sp

.fi

.fi

For additional options which may be specified, see the marker_file

For additional options which may be specified, see the marker_file

specified.  This option is not meant for city markers; for that use

specified.  This option is not meant for city markers; for that use

the marker_file option in the configuration file.

the marker_file option in the configuration file.

body:        body's north pole

body:        body's north pole

galactic:    galactic north pole

galactic:    galactic north pole

orbit:       body's orbital north pole (perpendicular to the orbit plane)

orbit:       body's orbital north pole (perpendicular to the orbit plane)

separation:  perpendicular to the line of sight and the

separation:  perpendicular to the line of sight and the

.sp

.sp

.fi

.fi

The default value is "body".

The default value is "body".

.TP

.TP

.B \-origin body

.B \-origin body

Place the observer at the center of the specified body.  Valid values

Place the observer at the center of the specified body.  Valid values

"system" may be specified.  Using "above" or "below" centers the view

"system" may be specified.  Using "above" or "below" centers the view

on the body's primary and the field of view is large enough to show

on the body's primary and the field of view is large enough to show

the body's orbit.  Using "system" places the observer at the center of

the body's orbit.  Using "system" places the observer at the center of

If the body name is preceded by a dash, the observer is placed on the

If the body name is preceded by a dash, the observer is placed on the

opposite side of the target from the specified body at a distance

opposite side of the target from the specified body at a distance

equal to the distance between the target and body.  For example,

equal to the distance between the target and body.  For example,

a line connecting the centers of the earth and sun at a distance of 1

a line connecting the centers of the earth and sun at a distance of 1

AU farther from the sun than the earth.

AU farther from the sun than the earth.

.TP

.TP

.B \-origin_file origin_file

.B \-origin_file origin_file

Specify a list of observer positions in origin_file.  The positions

Specify a list of observer positions in origin_file.  The positions

the Sun).  Each line should be of the form

the Sun).  Each line should be of the form

.nf

.nf

.sp

.sp

For example,

For example,

.nf

.nf

.sp

.sp

.sp

.sp

.fi

.fi

Range is in planetary radii, and lat and lon are in degrees.  The date

Range is in planetary radii, and lat and lon are in degrees.  The date

is the only required value.  If the localtime (in hours) is supplied,

is the only required value.  If the localtime (in hours) is supplied,

it will be used in place of the longitude.  For each line in the

it will be used in place of the longitude.  For each line in the

origin file, the observer is placed at the specified position,

origin file, the observer is placed at the specified position,

for showing spacecraft flybys or orbiting around a planet.  Any line

for showing spacecraft flybys or orbiting around a planet.  Any line

with a # in the first column is ignored.

with a # in the first column is ignored.

taken from the extension. Currently .gif, .jpg, .ppm, .png, and .tiff

taken from the extension. Currently .gif, .jpg, .ppm, .png, and .tiff

images can be created, if xplanet has been compiled with the

images can be created, if xplanet has been compiled with the

appropriate libraries.  The image size defaults to 512 by 512 pixels

appropriate libraries.  The image size defaults to 512 by 512 pixels

.TP

.TP

.B \-output_start_index index

.B \-output_start_index index

.TP

.TP

.B \-path_relative_to body

.B \-path_relative_to body

vector is calculated relative to the specified body.  By default, this

vector is calculated relative to the specified body.  By default, this

is the Sun.

is the Sun.

On MS Windows, you may need to use unix-style paths.  For example:

On MS Windows, you may need to use unix-style paths.  For example:

.nf

.nf

.sp

.sp

.sp

.sp

.fi

.fi

.TP

.TP

.B \-rotate angle 

.B \-rotate angle 

Rotate the globe by angle degrees counterclockwise so that north (as

Rotate the globe by angle degrees counterclockwise so that north (as

make the earth look like it should!  For non-orthographic projections,

make the earth look like it should!  For non-orthographic projections,

the globe is rotated and then projected, if that helps you visualize

the globe is rotated and then projected, if that helps you visualize

what to expect.

what to expect.

.B \-save_desktop_file

.B \-save_desktop_file

On Microsoft Windows and Mac OS X, xplanet creates an intermediate

On Microsoft Windows and Mac OS X, xplanet creates an intermediate

image file which is used to set the desktop.  This file will be

image file which is used to set the desktop.  This file will be

after the desktop has been set.  Specifying this option will leave the

after the desktop has been set.  Specifying this option will leave the

file in place.

file in place.

.TP

.TP

.B \-separation body:dist

.B \-separation body:dist

Place the observer at a location where the target body and the

Place the observer at a location where the target body and the

moon appears 3 degrees to the left of the earth.

moon appears 3 degrees to the left of the earth.

.TP

.TP

.B \-spice_ephemeris index

.B \-spice_ephemeris index

Use SPICE kernels to compute the position of the named body.  The

Use SPICE kernels to compute the position of the named body.  The

option must be used to supply the names of the kernel files.  This

option must be used to supply the names of the kernel files.  This

option may be used more than once for different bodies.

option may be used more than once for different bodies.

decimal hours.  For example, the entry for Sirius is

decimal hours.  For example, the entry for Sirius is

.nf

.nf

.sp

.sp

.sp

.sp

.fi

.fi

to find the star map.

to find the star map.

.TP

.TP

.B \-target target

.B \-target target

.TP

.TP

.B \-tt

.B \-tt

.TP

.TP

.B \-tmpdir tmpdir

.B \-tmpdir tmpdir

Specify a directory that xplanet will use to place images created

Specify a directory that xplanet will use to place images created

a bitmap file called xplanet.bmp to the specified directory.  The

a bitmap file called xplanet.bmp to the specified directory.  The

default is the result of the GetWindowsDirectory call (C:\WINDOWS on

default is the result of the GetWindowsDirectory call (C:\WINDOWS on

Win95).  On Mac OS X, xplanet will create an intermediate PNG file in

Win95).  On Mac OS X, xplanet will create an intermediate PNG file in

order to set the background.  The default value is /tmp.  On Windows

order to set the background.  The default value is /tmp.  On Windows

and Mac OS X, the intermediate file will be removed unless the

and Mac OS X, the intermediate file will be removed unless the

.TP

.TP

.B \-transparency

.B \-transparency

.TP

.TP

.B \-transpng filename

.B \-transpng filename

transparent when writing a PNG file.  

transparent when writing a PNG file.  

.TP

.TP

.B \-utclabel

.B \-utclabel

.TP

.TP

.B \-verbosity level

.B \-verbosity level

.TP

.TP

.B \-window

.B \-window

Render the image to its own X window.  The size defaults to 512 by 512

Render the image to its own X window.  The size defaults to 512 by 512

.TP

.TP

.B \-window_title title

.B \-window_title title

.TP

.TP

.B \-xscreensaver

.B \-xscreensaver