void * tachyon_init_spaceball(SceneHandle scene, char * port) {
sbHandle * bh;
bh = (sbHandle *) malloc(sizeof(sbHandle));
if (bh != NULL) {
memset(bh, 0, sizeof(sbHandle));
bh->sball = sball_open(port);
if (bh->sball == NULL) {
free(bh);
return NULL;
}
}
rt_get_camera_position(scene, &bh->orig_camcent, &bh->orig_camviewvec, &bh->orig_camupvec, &bh->orig_camrightvec);
bh->camcent = bh->orig_camcent;
bh->camviewvec = bh->orig_camviewvec;
bh->camupvec = bh->orig_camupvec;
trackball(bh->curquat, 0.0, 0.0, 0.0, 0.0);
return bh;
}
// constructor
Spaceball::Spaceball(VMDApp *vmdapp)
: UIObject(vmdapp) {
#if defined(VMDTDCONNEXION) && defined(__APPLE__)
// Enable input from MacOS X 3DConnexion API
tdx_clear();
if (tdx_enable() == 0)
msgInfo << "3DConnexion SpaceNavigator enabled." << sendmsg;
#endif
#if defined(VMDLIBSBALL) && !defined(VMDSPACEWARE)
sball=NULL; // zero it out to begin with
if (getenv("VMDSPACEBALLPORT") != NULL) {
msgInfo << "Opening Spaceball (direct I/O) on port: "
<< getenv("VMDSPACEBALLPORT") << sendmsg;
sball = sball_open(getenv("VMDSPACEBALLPORT"));
if (sball == NULL)
msgErr << "Failed to open Spaceball direct I/O serial port, device disabled."
<< sendmsg;
}
#endif
buttonDown = 0;
reset();
}
int SpaceballTracker::do_start(const SensorConfig *config) {
#if defined(VMDLIBSBALL)
if (sball) return FALSE;
#endif
if (!config->require_local()) return 0;
if (!config->have_one_sensor()) return 0;
char *myUSL = stringdup(config->getname());
if (!strupcmp(myUSL, "VMDLOCAL")) {
msgInfo << "Opening VMD console Spaceball device (tracker)." << sendmsg;
uselocal=1; // Use the main VMD spaceball for input
// set the default translation and rotation increments
// these really need to be made user modifiable at runtime
transInc = 1.0f;
rotInc = 1.0f;
scaleInc = 1.0f;
} else {
#if defined(VMDLIBSBALL)
msgInfo << "Opening Spaceball tracker (direct I/O) on port: " << myUSL << sendmsg;
sball = sball_open(myUSL);
if (sball == NULL)
msgErr << "Failed to open Spaceball serial port, tracker disabled"
<< sendmsg;
// set the default translation and rotation increments
// these really need to be made user modifiable at runtime
transInc = 1.0f / 6000.0f;
rotInc = 1.0f / 50.0f;
scaleInc = 1.0f / 6000.0f;
#else
msgErr << "Cannot open Spaceball with direct I/O, not compiled with "
"LIBSBALL option" << sendmsg;
#endif
}
// reset the position
moveto(0,0,0);
orient->identity();
delete [] myUSL;
return TRUE;
}
