gonium

function points = guilloches(Theta, R, r, p)

points = [];
for theta = Theta,
  x = (R+r)*cos(theta) + (r+p)*cos(((R+r)/r)*theta);
  y = (R+r)*sin(theta) + (r+p)*sin(((R+r)/r)*theta);
  points = [ points; x, y ];
end

end

gonium

### Keybase proof

I hereby claim:

  * I am gonium on github.
  * I am gonium (https://keybase.io/gonium) on keybase.
  * I have a public key whose fingerprint is E7BA B68E A2D3 9B6A ECEF  4DE4 823E 0DBE B650 1625

To claim this, I am signing this object:

gonium

  memset(&switchmsg, 0, sizeof(switchmsg));

  strncpy(switchmsg.type, "HEXABUS", sizeof(switchmsg.type));
  switchmsg.source = 1;

  if (strcmp(argv[2], "on") == 0) {
    printf("sending ON command\r\n");
    switchmsg.command=htons(ON);
  } 

gonium

static void
udphandler(process_event_t ev, process_data_t data)
{
  char buf[UDP_DATA_LEN];
  struct hexabusmsg_t *hexabuscmd;
  if (ev == tcpip_event) {
    if(uip_newdata()) {
      PRINTF("udp_handler: received '%d' bytes from ", uip_datalen());
      PRINT6ADDR(&UDP_IP_BUF->srcipaddr);
      hexabuscmd = (struct hexabusmsg_t *)uip_appdata;

gonium

PROCESS_THREAD(udp_handler_process, ev, data) {
	uip_ipaddr_t ipaddr;
	PROCESS_POLLHANDLER(pollhandler());
	PROCESS_EXITHANDLER(exithandler());

	// see: http://senstools.gforge.inria.fr/doku.php?id=contiki:examples
	PROCESS_BEGIN();
	PRINTF("udp_handler: process startup.\r\n");
	// wait 3 second, in order to have the IP addresses well configured
	etimer_set(&udp_periodic_timer, CLOCK_CONF_SECOND*3);