1
0
mirror of git://projects.qi-hardware.com/fped.git synced 2024-11-28 19:05:55 +02:00
fped/meas.h

69 lines
1.4 KiB
C
Raw Normal View History

/*
* meas.h - Measurements
*
* Written 2009 by Werner Almesberger
* Copyright 2009 by Werner Almesberger
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#ifndef MEAS_H
#define MEAS_H
#include "coord.h"
#include "expr.h"
typedef int (*lt_op_type)(struct coord a, struct coord b);
struct vec;
struct obj;
struct meas {
enum meas_type {
mt_xy_next,
mt_x_next,
mt_y_next,
mt_xy_max,
mt_x_max,
mt_y_max,
mt_n
} type;
char *label; /* or NULL */
int inverted;
/* low is obj->base */
struct vec *high;
struct expr *offset;
};
struct sample {
struct coord pos;
struct sample *next;
};
extern int n_samples;
int lt_x(struct coord a, struct coord b);
int lt_y(struct coord a, struct coord b);
int lt_xy(struct coord a, struct coord b);
struct coord meas_find_min(lt_op_type lt, const struct sample *s);
struct coord meas_find_next(lt_op_type lt, const struct sample *s,
struct coord ref);
struct coord meas_find_max(lt_op_type lt, const struct sample *s);
void reset_samples(struct sample **samples, int n);
void meas_start(void);
void meas_post(const struct vec *vec, struct coord pos);
int instantiate_meas(void);
#endif /* !MEAS_H */