/**
* Checks all points in an UltrasoundScanData point array against a list of possible organs
* that can be contained in those points. The points are then appropriately shaded based
* on the material properties of those organs.
*
* @param data An UltrasoundScanData populated with empty UltrasoundPoint objects.
* @param organList A list of GameObjects to check against.
*/
private void ScanPointsForOrgans(ref UltrasoundScanData data, IList <GameObject> organList)
{
OnionLogger.globalLog.PushInfoLayer("Performing Scan");
int scanlineIndex = 0;
int totalScanlines = data.GetProbeConfig().GetNumberOfScanlines();
foreach (UltrasoundScanline scanline in data)
{
// Reset the intensity when starting each scanline
float pulseIntensity = data.GetProbeConfig().GetGain();
foreach (UltrasoundPoint point in scanline)
{
foreach (GameObject gameObject in organList)
{
Vector3 target = point.GetWorldSpaceLocation();
Collider collider = gameObject.collider;
bool hit = UltrasoundCollisionUtils.IsContained(target, collider);
if (hit)
{
HorayMaterialProperties organProperties = gameObject.GetComponent <HorayMaterialProperties>();
float pointIntensity = IntensityAtPoint(pulseIntensity, organProperties);
point.SetBrightness(pointIntensity);
pulseIntensity = PulseIntensityAfterPoint(pulseIntensity,
organProperties,
data.GetProbeConfig());
}
}
}
}
OnionLogger.globalLog.PopInfoLayer();
}
/**
* Set up the data object with empty UltrasoundPoint%s representing the points
* that need to be scanned.
*
* This is analagous to setting up the view frustum in traditional 3D graphics.
*/
private void EstablishScanningPlane(ref UltrasoundScanData data)
{
OnionLogger.globalLog.PushInfoLayer("Pre-populating data");
UltrasoundProbeConfiguration config = data.GetProbeConfig();
// nearZ and farZ represent near and far clipping "planes" (they're really arcs)
float nearZ = config.GetMinScanDistance();
float farZ = config.GetMaxScanDistance();
float arcSizeDegrees = config.GetArcSizeInDegrees();
int scanlines = config.GetNumberOfScanlines();
int pointsPerScanline = config.GetPointsPerScanline();
for (int i = 0; i < scanlines; ++i)
{
UltrasoundScanline scanline = new UltrasoundScanline(config.GetPosition());
float angleInDegrees = -(arcSizeDegrees / 2) + i * arcSizeDegrees / (scanlines - 1);
float angleInRadians = Mathf.Deg2Rad * angleInDegrees;
Vector2 trajectory = new Vector2(Mathf.Sin(angleInRadians), Mathf.Cos(angleInRadians));
for (int j = 0; j < pointsPerScanline; ++j)
{
float d = nearZ + j * (farZ - nearZ) / (pointsPerScanline - 1);
Vector2 positionOnPlane = d * trajectory;
Vector3 positionInWorldSpace = WorldSpaceFromProjectedPosition(positionOnPlane, config);
UltrasoundPoint point = new UltrasoundPoint(positionInWorldSpace, positionOnPlane);
scanline.AddUltrasoundPoint(point);
}
data.AddScanline(scanline);
}
OnionLogger.globalLog.PopInfoLayer();
}
public virtual void RenderColorImageInBitmap(ref ColorBitmap bitmap)
{
OnionLogger.globalLog.PushInfoLayer("BModeOutputImageDecoder");
// Acquire data from the probe output.
UltrasoundScanData data = probeOutput.SendScanData();
// Render the data to a bitmap
OnionLogger.globalLog.PushInfoLayer("Rendering UltrasoundData to bitmap");
foreach (UltrasoundScanline scanline in data)
{
foreach (UltrasoundPoint point in scanline)
{
int index = MapScanningPlaneToPixelCoordinate(bitmap.height,
bitmap.width,
point.GetProjectedLocation(),
data.GetProbeConfig());
DrawPoint(point, index, ref bitmap);
}
}
OnionLogger.globalLog.PopInfoLayer();
// Apply post-processing effects
OnionLogger.globalLog.PushInfoLayer("Post-processing");
foreach (IImagePostProcessor effect in imageEffects)
{
effect.ProcessBitmap(ref bitmap);
}
OnionLogger.globalLog.PopInfoLayer();
OnionLogger.globalLog.PopInfoLayer();
}
public UltrasoundScanData SendScanData()
{
OnionLogger.globalLog.PushInfoLayer("HORAYProbeOutput");
UltrasoundProbeConfiguration currentConfig =
probeGameObject.GetComponent <HorayBehavior>().GetProbeConfig();
UltrasoundScanData data = new UltrasoundScanData(currentConfig);
probe.PopulateData(ref data);
OnionLogger.globalLog.PopInfoLayer();
return(data);
}
/**
* Populates an UltrasoundScanData with scan data for this frame.
* @param data The object into which to put the scan data.
*/
public void PopulateData(ref UltrasoundScanData data)
{
OnionLogger.globalLog.PushInfoLayer("HORAYProbe populating data");
#if UNITY_EDITOR
UltrasoundDebug.Assert(null != data,
"Null data object passed to HorayProbe's PopulateData method.",
this);
#endif
EstablishScanningPlane(ref data);
IList <GameObject> culledOrganList = culler.HitableOrgansOnScanlines(data.GetScanlines(),
data.GetProbeConfig());
ScanPointsForOrgans(ref data, culledOrganList);
OnionLogger.globalLog.PopInfoLayer();
}
public UltrasoundScanData SendScanData()
{
UltrasoundProbeConfiguration config = new UltrasoundProbeConfiguration();
config.SetMaxScanDistance(MAX_Y);
config.SetMinScanDistance(MIN_Y);
UltrasoundScanData data = new UltrasoundScanData(config);
for (float i = MIN_X; i <= MAX_X; i += STEPSIZE)
{
UltrasoundScanline scanline = new UltrasoundScanline(config.GetPosition());
for (float j = MIN_Y; j <= MAX_Y; j += STEPSIZE)
{
UltrasoundPoint p = new UltrasoundPoint(Vector3.zero, new Vector2(i * (j / MAX_Y), j));
p.SetBrightness(Random.Range(0f, 1f)); // Generate noise.
scanline.AddUltrasoundPoint(p);
}
data.AddScanline(scanline);
}
return(data);
}
