kopia lustrzana https://github.com/fellesverkstedet/fabmodules
252 wiersze
7.3 KiB
C
252 wiersze
7.3 KiB
C
//
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// path_gcc.c
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// convert path to GCC lasercutter .gcc
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// Based on path_epi.c
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//
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// Neil Gershenfeld 8/18/13
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// (c) Massachusetts Institute of Technology 2013
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// Jon Nordby 9/1/14
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// (c) Jon Nordby, Fellesverkstedet 2014
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//
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// This work may be reproduced, modified, distributed,
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// performed, and displayed for any purpose, but must
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// acknowledge the fab modules project. Copyright is
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// retained and must be preserved. The work is provided
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// as is; no warranty is provided, and users accept all
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// liability.
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//
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#include "fab.h"
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// Machine expects 16 pen values for PPI/power/speed, encoded as ascii
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static int write_pen_values(char *str, size_t n, int v[16]) {
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int written = snprintf(str, n,
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"%04d%04d%04d%04d%04d%04d%04d%04d%04d%04d%04d%04d%04d%04d%04d%04d",
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v[0], v[1], v[2], v[3], v[4], v[5], v[6], v[7], v[8],
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v[9], v[10], v[11], v[12], v[13], v[14], v[15], v[16], v[17]);
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return written;
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}
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void fab_write_gcc(struct fab_vars *v, char *output_file_name,
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int power, int speed, int focus,
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float ox, float oy, char loc,
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int rate, int max_power) {
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//
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// write path to GCC lasercutter file
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//
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FILE *output_file;
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int i,x,y,z,current_z,layer_power,nsegs=0,npts=0;
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float scale,xoffset,yoffset;
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output_file = fopen(output_file_name,"w");
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// scale = 600.0*v->dx/(25.4*(v->nx-1.0)); // 600 DPI
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// FIXME: calculate proper scale
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scale = 3.35f;
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if (loc == 'l') {
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xoffset = 600.0*(ox)/25.4;
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yoffset = 600.0*(oy - v->dy)/25.4;
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}
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else if (loc == 'r') {
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xoffset = 600.0*(ox - v->dx)/25.4;
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yoffset = 600.0*(oy - v->dy)/25.4;
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}
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else if (loc == 'L') {
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xoffset = 600.0*(ox)/25.4;
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yoffset = 600.0*(oy)/25.4;
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}
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else if (loc == 'R') {
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xoffset = 600.0*(ox - v->dx)/25.4;
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yoffset = 600.0*(oy)/25.4;
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}
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// Limit filename to 80 chars
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char *filename[80];
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snprintf(filename, 80, "%s", output_file_name);
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// Start
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fprintf(output_file,"@PJL JOB NAME=%s\r\nE@PJL ENTER LANGUAGE=PCL\r\n%%-12345X", filename);
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// Reset
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fprintf(output_file,"E");
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// Unit
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fprintf(output_file,"&u%dD", 254);
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// Cursor
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fprintf(output_file,"*p%dX", 100);
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fprintf(output_file,"*p%dY", 100);
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// Set filename
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fprintf(output_file,"!m%dN%s", strlen(filename), filename);
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// Set raster power+velocity. Works but only affects raster. Shows in display before start
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fprintf(output_file,"!r%dI", rate);
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fprintf(output_file,"!r%dP", power*10);
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// Select first (and only) pen
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// fprintf(output_file,"!v%dD", 1);
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// fprintf(output_file,"!m%dA", 2); // somehow triggers auto-focus??
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// Use same value for all 16 pens
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int velocities[16];
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int ppis[16];
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int powers[16];
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{
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int i;
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for (i=0; i<16; i++) {
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velocities[i] = speed*10; // thousands
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powers[i] = power*10; // thousands
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ppis[i] = rate;
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}
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}
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char buf[65];
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// Set power
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write_pen_values(buf, 65, powers);
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fprintf(output_file,"!v%dP%s", 64, buf);
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// Velocity
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write_pen_values(buf, 65, velocities);
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fprintf(output_file,"!v%dV%s", 64, buf);
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// PPI
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write_pen_values(buf, 65, ppis);
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fprintf(output_file,"!v%dI%s", 64, buf);
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// Enter HPGL vector mode
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fprintf(output_file,"%%1B");
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current_z = 0;
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// fprintf(output_file,"YP%d;\n",power);
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v->path->segment = v->path->last;
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while (1) {
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//
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// follow segments in reverse order
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//
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v->path->segment->point = v->path->segment->first;
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x = xoffset + scale * v->path->segment->point->first->value;
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y = yoffset + scale * v->path->segment->point->first->next->value;
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if (v->path->dof >= 3) {
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z = v->path->segment->point->first->next->next->value;
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if (z != current_z) {
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layer_power = power + (max_power-power) * z / (v->nz - 1.0);
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//fprintf(output_file,"YP%d;\n",layer_power);
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current_z = z;
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}
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}
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if (x < 0) x = 0;
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if (y < 0) y = 0;
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fprintf(output_file,"PU%d,%d;",x,y);
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nsegs += 1;
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while (1) {
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//
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// follow points
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//
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if (v->path->segment->point->next == 0)
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break;
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v->path->segment->point = v->path->segment->point->next;
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x = xoffset + scale * v->path->segment->point->first->value;
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y = yoffset + scale * v->path->segment->point->first->next->value;
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if (v->path->dof >= 3) {
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z = v->path->segment->point->first->next->next->value;
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if (z != current_z) {
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layer_power = power + (max_power-power) * z / (v->nz - 1.0);
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//fprintf(output_file,"YP%d;\n",layer_power);
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current_z = z;
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}
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}
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if (x < 0) x = 0;
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if (y < 0) y = 0;
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fprintf(output_file,"PD%d,%d;",x,y);
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npts += 1;
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}
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fprintf(output_file,"\n");
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if (v->path->segment == v->path->first)
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break;
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v->path->segment = v->path->segment->previous;
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}
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// Leave HPGL vector mode
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fprintf(output_file,"%%1A");
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// Reset
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fprintf(output_file,"E");
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// End
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fprintf(output_file,"%%-12345X@PJL EOJ \r\n");
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// close and return
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//
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fclose(output_file);
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printf("wrote %s\n",output_file_name);
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printf(" segments: %d, points: %d\n",nsegs,npts);
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}
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int main(int argc, char **argv) {
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//
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// local vars
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//
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struct fab_vars v;
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init_vars(&v);
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int power,max_power,speed,focus,rate;
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float ox,oy;
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char loc;
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//
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// command line args
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//
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if (!((argc == 3) || (argc == 4) || (argc == 5) || (argc == 6) || (argc == 8) || (argc == 9) || (argc == 10) || (argc == 11))) {
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printf("command line: path_gcc in.path out.gcc [power [speed [focus [x y [ location [rate [max_power]]]]]]]\n");
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printf(" in.path = input path file\n");
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printf(" out.gcc= output GCC lasercutter file\n");
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printf(" power = percent power, for minimum z value (optional, 0-100, default 50)\n");
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printf(" speed = percent speed (optional, 0-100, default 50)\n");
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printf(" focus = autofocus (optional, 0=off | 1=on, default on)\n");
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printf(" x = origin x (optional, mm, default 0 = left side of bed)\n");
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printf(" y = origin y (optional, mm, default 0 = back side of bed, front positive)\n");
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printf(" location = origin location (optional, bottom left:l, bottom right:r, top left:L, top right:R, default l)\n");
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printf(" rate = pulse rate (optional, frequency, default 2500)\n");
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printf(" max_power = percent power, for maximum z value (optional, 0-100, default power)\n");
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exit(-1);
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}
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power = 50;
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speed = 50;
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focus = 1;
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ox = 0;
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oy = 0;
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loc = 'l';
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rate = 2500;
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max_power = power;
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if (argc >= 4) {
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sscanf(argv[3],"%d",&power);
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}
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if (argc >= 5) {
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sscanf(argv[4],"%d",&speed);
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}
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if (argc >= 6) {
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sscanf(argv[5],"%d",&focus);
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}
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if (argc >= 8) {
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sscanf(argv[6],"%f",&ox);
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sscanf(argv[7],"%f",&oy);
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}
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if (argc >= 9) {
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sscanf(argv[8],"%c",&loc);
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}
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if (argc >= 10) {
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sscanf(argv[9],"%d",&rate);
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}
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if (argc >= 11) {
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sscanf(argv[10],"%d",&max_power);
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}
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//
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// read path
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//
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fab_read_path(&v,argv[1]);
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//
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// write .gcc
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//
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fab_write_gcc(&v,argv[2],power,speed,focus,ox,oy,loc,rate,max_power);
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}
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