Generating G Code from MDI history log

/* Component for use with the splice utility to produce gcode from a set of co-ordinates marked with pyVCP button */ component plot; pin in float xposition "Receives current position from Xpos"; pin in float yposition "Receives current position from Ypos"; pin in float zposition "Receives current position from Zpos"; pin in bit trigger = 0 "Triggers writing co-ordinates to file"; pin out float lastx "Outputs last X position plotted"; pin out float lasty "Outputs last Y position plotted"; pin out float lastz "Outputs last Z position plotted"; pin in bit splice = 0 "Triggers splicing together gcode"; pin in bit load = 0 "Triggers loading of generated gcode"; option singleton yes; option userspace yes; author "ArcEye"; license "GPL"; ;; #include <stdio.h> /* Standard input/output definitions */ #include <stdlib.h> #include <stdint.h> /* Standard types */ #include <string.h> /* String function definitions */ #include <unistd.h> /* UNIX standard function definitions */ #include <errno.h> /* Error number definitions */ #include <signal.h> int done = 0; void adios(int sig) { done = 1; } void user_mainloop(void) { char coordfile[] = "/tmp/cords.txt"; FILE *fptr1; int triggered, spliced, loaded; signal(SIGINT, adios); signal(SIGTERM, adios); // prevent cycling whilst button depressed triggered = spliced = loaded = 0; while(!done) { usleep(100000); FOR_ALL_INSTS() { if(trigger && !triggered) { fptr1 = fopen(coordfile, "a"); fprintf(fptr1, "X%08.03f Y%08.03f Z%08.03f\n", lastx = xposition, lasty = yposition, lastz = zposition ); fclose(fptr1); triggered = 1; } else if(splice && !spliced) { system("splice /usr/share/splice/header.ngc /usr/share/splice/footer.ngc /tmp/cords.txt /tmp/operation.ngc /tmp/output.ngc"); spliced = 1; } else if(load && !loaded) { system("axis-remote /tmp/output.ngc"); loaded = 1; } else // ensure button released before zeroing flag to allow pressing it to register again { if(!trigger && triggered) triggered = 0; if(!splice && spliced) spliced = 0; if(!load && loaded) loaded = 0; } } } exit(0); }