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STRN Outline
Below is an outline of the files currently in the SRTN project with brief descriptions of functionality, as well as listing the functions which each file contains. This is intended as a means of organizing the code and making its functionality more visible, and is not the final version of the document. As change and updates to the source occur, changes to this list may occur as well.
The GUI has buttons along the top. Below describes the functionality of these buttons.
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Clears the current time integral and data, starts back at zero.
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Indicates whether the antenna is stowed or not.
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Allows you to set the az el coordinates for the antenna.
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Unclear. This seems to be involved in some kind of calibration, however.
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Unclear. The help file states that it is "beam switch".
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Allows the user to change the frequency at which to observe. The help file indicates that it is possible to pass in optional arguments to adjust the bandwidth as well.
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Allows user to specify an offset in the az el coordinates.
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Prompts the user for a file name and records data to that file.
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When selected, the program will run (or try to run) whatever commands exist in the cmd.txt file. This feature could be useful when developing automation for the program.
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Allows the user to calibrate the telescope, with different modes of calibration.
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Brings up a help window that specifies some information on the buttons and commands accepted by the program.
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Exits the program.
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udev rules that allows pci devices, HID devices, and libusb to work with non-root users
allows calling ACML routines via their C or FORTRAN interfaces
fast-fourrier transform for AMD architecture?
Functions:
void fft_init(int n, float ream[], double *comm, int *info)
void cfft(int n, float ream[], double *comm, int *info)code for calibration?
Functions:
void cal(int mode)
void polyfitr(int npoly, int nfreq, float ddata[], float wtt[], float dataout[])
void MatrixInvert(int nsiz, long double aarr[], long double bbrr[])parses the cat file
Functions:
int catfile(void)
char *kmatch(char *buf, char *ct)a text file storing commands you want srtn to execute
logic to interpret and execute what is in cmd.txt
Functions:
double cmdfile(void)declares constant values used throughout the code
declares globals used in the code
forward-declare many of the functions used often in the code
declares the d1type struct
has much of the logic that deals with the GUI
Functions:
void button_clear_clicked(void)
void button_stow_clicked(void)
void button_azel_clicked(void)
void hit_enter_azel(void)
void button_freq_clicked(void)
void hit_enter_freq(void)
void button_offset_clicked(void)
void hit_enter_offset(void)
void button_npoint_clicked(void)
void button_bsw_clicked(void)
void button_record_clicked(void)
void hit_enter_record(void)
void record_tooltip(void)
void button_cmdfl_clicked(void)
void hit_enter_cmdfl(void)
void button_cal_clicked(void)
void hit_enter_cal(void)
void button_help_clicked(void)
void button_exit_clicked(void)
gint button_press_event(GtkWidget * widget, GdkEventButton * event)
void clearpaint(void)
void cleararea(void)
gint configure_event(GtkWidget * widget)
gint expose_event(GtkWidget * widget, GdkEventExpose * event)
void quit()script that appears to format/indent C code in a specified way
handle fast-fourrier transforms?
Functions:
void fft_init(int n, fftwf_plan * p, float **reamin0, float **reamout0)
void fft_free(fftwf_plan * p, float **reamin0, float **reamout0)
void cfft(fftwf_plan * p)fast-fourrier transform
unsure, might have something to do with angles..
Functions:
void Four(double *fft_r, double *fft_i, int nn)appears to hold logic for spherical geometry
Functions:
double vlsr(double time, double ra, double dec)
void GalactictoRadec(double glat, double glon, double *ra, double *dec)
void moonradec(double time, double *ra, double *dec)
void precess(double rain, double decin, double *praout, double *pdecout, double epin, double epout)
void radec_azel(double ha, double dec, double latt, double *azs, double *elevs)
void sunradec(double time, double *ra, double *dec)
void azel_to_radec(double time, double az, double el, double *ra, double *dec)forward-declare functions involving the help menu
library allowing us to interface with the dongle (and other kinds of dongles as well)
sets everything up, declares variables and checks variable/flag values to determine what to do, initialize/define GUI buttons and actions
Functions:
int main(int argc, char *argv[])
void zerospectra(int mode)
void aver(void)
double gauss(void)seems to involve drawing of lines/points on the GUI, this may be what controls the 'map' in the bottom quadrant of the GUI
Functions:
void scanplot(void)writes data to a file
Functions:
void outfile(void)things for PCI boards?
forward declare functions for PCI board usage
plots something on the GUI (the graph(t) on the left, or the FFT?)
Functions:
gint Repaint(void)Gives some details on how the program works and should be set up
forward-declare functions from librtlsdr
udev rules to allow external rtl-sdr devices to work with non-root users
something dealing with librtlsdr
forward-declare things from librtlsdr
controls antenna movement?
Functions:
void azel(double az, double el)
int rot2(double *az, double *el, int cmd, char *resp)old version of sport.c (controls antenna movement)
Functions:
void azel(double az, double el)unclear, may be a config file of sorts
help file which populates the help window of the GUI
displays the help menu on the GUI and loads in the help info from srt.hlp
Functions:
void display_help()
void button_helphome_clicked(void)
void button_helpmode_clicked(void)
void button_helpnpoint_clicked(void)
void button_helpbeamsw_clicked(void)
void button_helpfreq_clicked(void)
void button_helpoffset_clicked(void)
void button_helprecord_clicked(void)
void button_helpcmdfl_clicked(void)
void button_helpcal_clicked(void)
void button_helpexit_clicked(void)
void load_help(char *command)
void exit_help(void)The program!
Script that compiles the program
an assortment of timing functions
Functions:
double gst(double ttime)
double tosecs(int yr, int day, int hr, int min, int sec)
void toyrday(double secs, int *pyear, int *pday, int *phr, int *pmin, int *psec)
int dayofyear(int year, int month, int day)
char *to_date(int year, int day)
char *to_radecp(double ra, double dec)
double readclock(void)the tuner driver
forward declare for the tuner driver
unclear, it interacts with the GUI, and seems to be plotting something, maybe the spectrum on the right hand side of GUI
Functions:
void velspec()
void button_psw_clicked(void)
void vclearpaint(void)
gint vconfigure_event(GtkWidget * widget)
gint vexpose_event(GtkWidget * widget, GdkEventExpose * event)
void vquit()
void vplot(void)initializes the dongle and reads data in from it?
Functions:
void vspectra(void)
void Init_Device(int mode)initializes the dongle and reads data in from it?
Functions:
void vspectra(void)
void Init_Device(int mode)initializes the dongle and reads data in from it?
Functions:
void vspectra(void)
void Init_Device(int mode)initializes the dongle/pci and reads data in from it?
Functions:
void Init_Device(int mode)
void vspectra(void)
void DoOpenDevices()
int get_pci(unsigned short value[], int count)initializes the dongle/pci and reads data in from it?
Functions:
void DoOpenDevices();
void Init_Device(int mode)
void vspectra(void)
void DoOpenDevices()
int get_pci(unsigned short value[], int count)