void Canvas::LoadVolume(std::string filename)
{
volumeReader.Read(filename);
volumeReader.CreateDeviceVolume(&deviceVolume);
deviceVolume.SetClipPlane(glm::vec2(-1.f, 1.f), glm::vec2(-1.f, 1.f), glm::vec2(-1.f, 1.f));
deviceVolume.SetDensityScale(1.f);
setup_volume(deviceVolume);
ZoomToExtent();
camera.Setup(glm::vec3(0.f, 0.f, eyeDist), glm::vec3(0.f, 0.f, 0.f), glm::vec3(0.f, 1.f, 0.f), fov, apeture, focalLength, exposure, WIDTH, HEIGHT);
viewMat = glm::lookAt(glm::vec3(0.f, 0.f, eyeDist), glm::vec3(0.f), glm::vec3(0.f, 1.f, 0.f));
UpdateCamera();
ready = true;
}
int read_volparams(void)
{
int vol_params_read = FALSE;
si32 nbytes_char;
si32 nelev;
si32 nheights;
si32 *radar_elevations;
si32 *plane_heights;
si32 packet_id;
vol_params_t *vol_params;
/*
* read in a packet
*/
while (!vol_params_read) {
if (read_packet(&packet_id) == CS_FAILURE) {
return(CS_FAILURE);
}
/*
* check for volume packet type
*/
if (packet_id == VOL_PARAMS_PACKET_CODE) {
vol_params = (vol_params_t *) Glob->packet;
umalloc_verify();
/*
* decode the data from network byte order
*/
BE_to_array_32((ui32 *) &vol_params->mid_time,
(ui32) sizeof(radtim_t));
nbytes_char =
(si32) BE_to_si32((ui32) vol_params->radar.nbytes_char);
BE_to_array_32((ui32 *) &vol_params->radar,
(ui32) (sizeof(radar_params_t) - nbytes_char));
nbytes_char =
(si32) BE_to_si32((ui32) vol_params->cart.nbytes_char);
BE_to_array_32((ui32 *) &vol_params->cart,
(ui32) (sizeof(cart_params_t) - nbytes_char));
vol_params->nfields = (si32) BE_to_si32((ui32) vol_params->nfields);
umalloc_verify();
radar_elevations = (si32 *)
((char *) vol_params + sizeof(vol_params_t));
nelev = vol_params->radar.nelevations;
BE_to_array_32((ui32 *) radar_elevations,
(ui32) (nelev * sizeof(si32)));
plane_heights = radar_elevations + nelev;
nheights = vol_params->cart.nz * N_PLANE_HEIGHT_VALUES;
umalloc_verify();
BE_to_array_32((ui32 *) plane_heights,
(ui32) (nheights * sizeof(si32)));
/*
* place this data in shared memory
*/
umalloc_verify();
setup_volume(vol_params, radar_elevations, plane_heights);
vol_params_read = TRUE;
} /* if (packet_id == VOL_PARAMS_PACKET_CODE) */
} /* while (!vol_params_read) */
return(CS_SUCCESS);
}
