foot-pressure.h File Reference

Header file to define data type for foot pressure sensor. More...

#include <time.h>
#include <string>
#include <vector>

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Data Structures
struct	foot_sens
	Structure containing foot pressure sensor data. More...
Functions
int	get_month_no (string month)
int	read_foot_pres_movie (char *filename, struct foot_sens &foot_movie)
	Read in-shoe pressure data from sensors, pressure distribution for all frames.
double	press_frame_timestamp (int frameno, double sec_per_frame, struct tm readtime)
	Returns the timestamp when frame was recorded.
int	read_foot_press_head (ifstream &infile, struct foot_sens &foot_movie)
int	read_foot_press_cof (char *filename, struct foot_sens &footcof)
	Read in-shoe pressure data - center of force coordinates in pixel location.
int	read_foot_pressures (char *filename, struct foot_sens &footpres)
	Read contact pressure values exported from Graph Objects.
int	read_foot_forces (char *filename, struct foot_sens &footfor)
	Read force values exported from Graph Objects.

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Detailed Description

Header file to define data type for foot pressure sensor.

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Function Documentation

int get_month_no

(

string

month

)

Referenced by read_foot_press_head().

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double press_frame_timestamp	(	int	frameno,
		double	sec_per_frame,
		struct tm	readtime
	)

Returns the timestamp when frame was recorded.

Since the frames are recorded at known frequency, and the timestamp of the first frame is recorded, this function outputs the timestamp (as seconds passed since Epoch) based on the frame number.

Parameters:

[in]	frameno	The index number of the frame. ie Actual Frame number-1 (since Frame one is stored as mdata[0][][] and so on).
[in]	secs_per_frame	The seconds per frame. It is obtained from the specific member of the foot_sens structure.
[in]	readtime	The tm structure that holds timestamp data.

Returns:

The seconds passed since Epoch until the particular frame

int read_foot_forces	(	char *	filename,
		struct foot_sens &	footfor
	)

Read force values exported from Graph Objects.

References foot_sens::for_data, read_foot_press_head(), and foot_sens::tot_frames.

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int read_foot_pres_movie	(	char *	filename,
		struct foot_sens &	foot_movie
	)

Read in-shoe pressure data from sensors, pressure distribution for all frames.

Reads files of type *.asf. Loads pressure distribution over all sensels.

References foot_sens::mdata, foot_sens::num_cols, foot_sens::num_rows, read_foot_press_head(), and foot_sens::tot_frames.

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int read_foot_press_cof	(	char *	filename,
		struct foot_sens &	footcof
	)

Read in-shoe pressure data - center of force coordinates in pixel location.

The function reads files of type *.asc, which contain the location of the center of force on the foot. The co-ordinates of the center of force are expressed as the row and column number of the sensels. The exact physical location can be calculation using the row spacing and column spacing information that is contained in the file.

Returns:

0 on success.

References foot_sens::cof_data, read_foot_press_head(), and foot_sens::tot_frames.

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int read_foot_press_head	(	ifstream &	infile,
		struct foot_sens &	foot_movie
	)

Referenced by read_foot_forces(), read_foot_pres_movie(), read_foot_press_cof(), and read_foot_pressures().

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int read_foot_pressures	(	char *	filename,
		struct foot_sens &	footpres
	)

Read contact pressure values exported from Graph Objects.

References foot_sens::pres_data, read_foot_press_head(), and foot_sens::tot_frames.

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