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gp2rml/gp2rml.c: new option -s to set Z scale factor

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Sounds weird, but the mill seems to be off by some 10%.
This commit is contained in:
Werner Almesberger 2013-11-07 03:25:45 -03:00
parent 033d55c8ad
commit d64a34045f
1 changed files with 25 additions and 10 deletions
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35
gp2rml/gp2rml.c
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@ -1,8 +1,8 @@
/* /*
* gp2rml.c - Convert from gnuplot to RML * gp2rml.c - Convert from gnuplot to RML
* *
* Written 2010-2012 by Werner Almesberger * Written 2010-2013 by Werner Almesberger
* Copyright 2010-2012 Werner Almesberger * Copyright 2010-2013 Werner Almesberger
* *
* This program is free software; you can redistribute it and/or modify * 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 * it under the terms of the GNU General Public License as published by
@ -56,6 +56,7 @@ struct path {
static struct path *paths = NULL, *curr_path; static struct path *paths = NULL, *curr_path;
static struct segment **next_seg; static struct segment **next_seg;
static double z_max = -1e6; /* -1 km :) */ static double z_max = -1e6; /* -1 km :) */
static double z_scale = 1; /* < 1: compress; > 1: stretch */
#define units(mm) ((int) round((mm)*40.0)) #define units(mm) ((int) round((mm)*40.0))
@ -155,7 +156,7 @@ static void output_paths(double z_clear, double xy_speed, double z_speed)
seg = seg->next; seg = seg->next;
while (seg) { while (seg) {
printf("!ZZ%d,%d,%d\n", units(seg->x), units(seg->y), printf("!ZZ%d,%d,%d\n", units(seg->x), units(seg->y),
units(seg->z-z_max)); units((seg->z-z_max)*z_scale));
d = hypot(x-seg->x, y-seg->y); d = hypot(x-seg->x, y-seg->y);
txy = d/xy_speed; txy = d/xy_speed;
tz = fabs(z-seg->z)/z_speed; tz = fabs(z-seg->z)/z_speed;
@ -185,11 +186,12 @@ static void output_paths(double z_clear, double xy_speed, double z_speed)
static void usage(const char *name) static void usage(const char *name)
{ {
fprintf(stderr, fprintf(stderr,
"usage: %s z_clear[mm] xy_speed z_speed [file]\n\n" "usage: %s [-s z_scale] z_clear[mm] xy_speed z_speed [file]\n\n"
" z_clear clearance above the highest peak, in mm (must be > 0)\n" " -s z_scale scale Z axis by z_scale (default: 1.0)\n"
" Unit (\"mm\") can optionally be specified\n" " z_clear clearance above the highest peak, in mm (must be > 0)\n"
" xy_speed cutting speed, in mm/s\n" " Unit (\"mm\") can optionally be specified\n"
" z_speed vertical speed when lowering the pen, in mm/s\n" " xy_speed cutting speed, in mm/s\n"
" z_speed vertical speed when lowering the pen, in mm/s\n"
, name); , name);
exit(1); exit(1);
} }
@ -197,11 +199,24 @@ static void usage(const char *name)
int main(int argc, const char **argv) int main(int argc, const char **argv)
{ {
const char *name;
FILE *file; FILE *file;
char *end; char *end;
int i; int i;
double p[3]; double p[3];
name = *argv;
if (argc > 2 && !strcmp(argv[1], "-s")) {
if (argc < 3)
usage(name);
z_scale = strtod(argv[2], &end);
if (*end)
usage(name);
argc -= 2;
argv += 2;
}
switch (argc) { switch (argc) {
case 4: case 4:
file = stdin; file = stdin;
@ -214,7 +229,7 @@ int main(int argc, const char **argv)
} }
break; break;
default: default:
usage(*argv); usage(name);
} }
for (i = 0; i != 3; i++) { for (i = 0; i != 3; i++) {
p[i] = strtod(argv[i+1], &end); p[i] = strtod(argv[i+1], &end);
@ -225,7 +240,7 @@ int main(int argc, const char **argv)
if (!i && *end && !strcmp(end, "mm")) if (!i && *end && !strcmp(end, "mm"))
continue; continue;
if (*end || p[i] <= 0) if (*end || p[i] <= 0)
usage(*argv); usage(name);
} }
process_file(file); process_file(file);