private void populate() {
// set up for a new population
Vector oldPop = this.positions;
this.positions = new Vector(50, 50);
// first browse the old population and make changes
for (int i = 0; i < oldPop.size(); i++) {
Position a = (Position) oldPop.get(i);
if (a.symPosNo < this.symPos.length) {
Point3d sPos = this.symPos[a.symPosNo];
if (sPos != null) {
Point3d newPos = new Point3d(sPos);
newPos.add(a.expandTranslation);
if (this.isPosInBounds(newPos)
&& Model3d.this.getAtomHere(this.positions, newPos) == null) {
a.changePos(newPos);
this.positions.add(a);
// System.out.println("move "+a);
continue;
}
}
}
// invalid, duplicate or out of bounds, remove
// System.out.println("del "+a);
a.del();
}
// now add potentially new appeared atoms
for (double i = -Math.ceil(Model3d.this.exm - 1);
i <= Math.floor(Model3d.this.exp + 1) + 1;
i++)
for (double j = -Math.ceil(Model3d.this.eym - 1);
j <= Math.floor(Model3d.this.eyp + 1) + 1;
j++)
for (double k = -Math.ceil(Model3d.this.ezm - 1);
k <= Math.floor(Model3d.this.ezp + 1) + 1;
k++) {
Vector3d v = new Vector3d(i, j, k);
for (int l = 0; l < this.symPos.length; l++) {
if (this.symPos[l] == null) continue;
Point3d p = new Point3d(this.symPos[l]);
p.add(v);
// TODO
if (this.isPosInBounds(p) && Model3d.this.getAtomHere(this.positions, p) == null) {
// if (isPosInBounds(round(p)) &&
// getAtomHere(positions, p)==null) {
Position a =
new Position(this.root, this, p, v, this.radius, this.color, l, !this.hidden);
this.positions.add(a);
// if (!isPosInBounds(p))System.out.println("xx
// "+p);
}
}
}
}
public Point3d calcCenterOfRotation() {
List<Integer> line = getLongestLayerLine();
// can't determine center of rotation if there are only 2 points
// TODO does this ever happen??
if (line.size() < 3) {
return subunits.getCentroid();
}
Point3d centerOfRotation = new Point3d();
List<Point3d> centers = subunits.getOriginalCenters();
// calculate helix mid points for each set of 3 adjacent subunits
for (int i = 0; i < line.size() - 2; i++) {
Point3d p1 = new Point3d(centers.get(line.get(i)));
Point3d p2 = new Point3d(centers.get(line.get(i + 1)));
Point3d p3 = new Point3d(centers.get(line.get(i + 2)));
transformationMatrix.transform(p1);
transformationMatrix.transform(p2);
transformationMatrix.transform(p3);
centerOfRotation.add(getMidPoint(p1, p2, p3));
}
// average over all midpoints to find best center of rotation
centerOfRotation.scale(1 / (line.size() - 2));
// since helix is aligned along the y-axis, with an origin at y = 0, place the center of
// rotation there
centerOfRotation.y = 0;
// transform center of rotation to the original coordinate frame
reverseTransformationMatrix.transform(centerOfRotation);
// System.out.println("center of rotation: " + centerOfRotation);
return centerOfRotation;
}
public Transform3D getTransform() {
Transform3D transform = new Transform3D();
Point3d target = new Point3d();
target.add(direction, position);
Point3d zoomedPosition = new Point3d();
zoomedPosition.scaleAdd(-zoom / direction.length(), direction, target);
transform.lookAt(zoomedPosition, target, up);
transform.invert();
return transform;
}
/**
* Rescales Point2 so that length 1-2 is sum of covalent radii. if covalent radii cannot be found,
* use bond length of 1.0
*
* @param atom1 stationary atom
* @param atom2 moveable atom
* @param point2 coordinates for atom 2
* @return new coords for atom 2
*/
public static Point3d rescaleBondLength(IAtom atom1, IAtom atom2, Point3d point2) {
Point3d point1 = atom1.getPoint3d();
double d1 = atom1.getCovalentRadius();
double d2 = atom2.getCovalentRadius();
// in case we have no covalent radii, set to 1.0
double distance =
(d1 < 0.1 || d2 < 0.1) ? 1.0 : atom1.getCovalentRadius() + atom2.getCovalentRadius();
Vector3d vect = new Vector3d(point2);
vect.sub(point1);
vect.normalize();
vect.scale(distance);
Point3d newPoint = new Point3d(point1);
newPoint.add(vect);
return newPoint;
}
public void move() {
Vector3d velocity = new Vector3d(cameraXP - cameraXN, 0, cameraZP - cameraZN);
velocity.normalize();
if (Double.isNaN(velocity.x)) {
velocity = new Vector3d();
}
position.add(velocity);
if (position.x < -maxX) {
position.x = -maxX;
} else if (position.x > maxX) {
position.x = maxX;
}
if (position.z < -maxZ) {
position.z = -maxZ;
} else if (position.z > maxZ) {
position.z = maxZ;
}
}
public synchronized void processCamera() {
long dt = (System.nanoTime() - lastUpdateTime) / 1000000;
float maxFractionForDT = TRAIL_MAX_FRACTION_DELTA_PER_SEC * (dt / 1000f);
// set hit fraction
float newHitFraction =
trailorCamCollider.getCollisionFraction(currentAvartarHeadPoint, currentCameraMaxVector);
// if it's bad just use previous hit fraction
if (!Float.isNaN(newHitFraction)) {
currentHitFraction = newHitFraction;
}
// come in a tiny bit so we see through wall to the side less
if (currentHitFraction <= 1.0f) {
float cameraVectorLen = currentHitFraction * TRAIL_MAX_DIST;
cameraVectorLen -= TRAIL_DIST_MARGIN;
currentHitFraction = cameraVectorLen / TRAIL_MAX_DIST;
}
float hitFractionDelta = currentHitFraction - lastSetHitFraction;
// clamp the max out ward delta by time (inwards is instant)
hitFractionDelta = hitFractionDelta > maxFractionForDT ? maxFractionForDT : hitFractionDelta;
currentHitFraction = hitFractionDelta + lastSetHitFraction;
// scale the camera vector
tempCameraVector.set(currentCameraMaxVector);
tempCameraVector.scale(currentHitFraction);
// make a camerapoint
tempCameraPoint.add(currentAvartarHeadPoint, tempCameraVector);
// look at head from camera
tempCamTrans.lookAt(tempCameraPoint, currentAvartarHeadPoint, Y_UP);
tempCamTrans.invert(); // cos lookAt is not for view platforms?
// set the actual view platform
getViewPlatformTransform().setTransform(tempCamTrans);
// remember state
lastSetHitFraction = currentHitFraction;
lastUpdateTime = System.nanoTime();
}
/* (non-Javadoc)
* @see org.biojava.nbio.structure.quaternary.core.AxisAligner#getGeometricCenter()
*/
@Override
public Point3d getGeometricCenter() {
run();
Point3d geometricCenter = new Point3d();
Vector3d translation = new Vector3d();
// reverseTransformationMatrix.get(translation);
// TODO does this apply to the helic case?
// calculate adjustment around z-axis and transform adjustment to
// original coordinate frame with the reverse transformation
// Vector3d corr = new Vector3d(0,minBoundary.y+getDimension().y, 0);
// reverseTransformationMatrix.transform(corr);
// geometricCenter.set(corr);
reverseTransformationMatrix.transform(translation);
geometricCenter.add(translation);
return geometricCenter;
}
/**
* Calculate new point X in a B-A(-D)-C system. It forms a B-A(-D)(-C)-X system.
*
* <p>(3) 3 ligands(B, C, D) of refAtom A (i) 1 points required; if A, B, C, D coplanar, no
* points. else vector is resultant of BA, CA, DA
*
* @param aPoint to which substituents are added
* @param bPoint first ligand of A
* @param cPoint second ligand of A
* @param dPoint third ligand of A
* @param length A-X length
* @return Point3d nwanted points (or null if failed (coplanar))
*/
public static Point3d calculate3DCoordinates3(
Point3d aPoint, Point3d bPoint, Point3d cPoint, Point3d dPoint, double length) {
Vector3d v1 = new Vector3d(aPoint);
v1.sub(bPoint);
Vector3d v2 = new Vector3d(aPoint);
v2.sub(cPoint);
Vector3d v3 = new Vector3d(aPoint);
v3.sub(dPoint);
Vector3d v = new Vector3d(bPoint);
v.add(cPoint);
v.add(dPoint);
if (v.length() < 0.00001) {
return null;
}
v.normalize();
v.scale(length);
Point3d point = new Point3d(aPoint);
point.add(v);
return point;
}
/**
* Create a core Java 3D View instance and a utility Viewer instance using the attributes gathered
* by this object.
*/
protected Viewer createViewer(boolean setVisible) {
Point3d leftEyeCoe, rightEyeCoe;
j3dView = new View();
j3dView.setViewPolicy(viewPolicy);
if (configBody == null) physicalBody = new PhysicalBody();
else physicalBody = configBody.j3dPhysicalBody;
if (configEnv == null) physicalEnvironment = new PhysicalEnvironment();
else physicalEnvironment = configEnv.j3dPhysicalEnvironment;
j3dView.setPhysicalBody(physicalBody);
j3dView.setPhysicalEnvironment(physicalEnvironment);
boolean standardDefaults = true;
if (coeCenteringEnableSet && !coeCenteringEnable) {
standardDefaults = false;
}
if (configEnv != null && configEnv.coexistenceToTrackerBase != null) {
standardDefaults = false;
} else {
Iterator i = screens.iterator();
while (i.hasNext()) {
ConfigScreen s = (ConfigScreen) i.next();
if (s.trackerBaseToImagePlate != null) {
standardDefaults = false;
break;
}
}
}
if (standardDefaults) {
// Coexistence centering has not been explicitly set false, and
// the tracker base to image plate and coexistence to tracker base
// transforms are unset, so use the standard Java 3D defaults.
if (windowEyepointPolicy == -1) windowEyepointPolicy = View.RELATIVE_TO_FIELD_OF_VIEW;
if (windowMovementPolicy == -1) windowMovementPolicy = View.PHYSICAL_WORLD;
if (windowResizePolicy == -1) windowResizePolicy = View.PHYSICAL_WORLD;
if (!coeCenteringEnableSet) coeCenteringEnable = true;
} else {
// Use multi-screen or calibrated coexistence defaults.
if (windowEyepointPolicy == -1) windowEyepointPolicy = View.RELATIVE_TO_COEXISTENCE;
if (windowMovementPolicy == -1) windowMovementPolicy = View.VIRTUAL_WORLD;
if (windowResizePolicy == -1) windowResizePolicy = View.VIRTUAL_WORLD;
if (!coeCenteringEnableSet) coeCenteringEnable = false;
}
j3dView.setWindowEyepointPolicy(windowEyepointPolicy);
j3dView.setWindowMovementPolicy(windowMovementPolicy);
j3dView.setWindowResizePolicy(windowResizePolicy);
j3dView.setCoexistenceCenteringEnable(coeCenteringEnable);
if (centerEyeInCoexistence == null) {
centerEyeInCoexistence = new Point3d(0.0, 0.0, 0.4572);
}
leftEyeCoe = new Point3d(centerEyeInCoexistence);
rightEyeCoe = new Point3d(centerEyeInCoexistence);
if (stereoEnable) {
Point3d leftEyeBody = new Point3d();
Point3d rightEyeBody = new Point3d();
physicalBody.getLeftEyePosition(leftEyeBody);
physicalBody.getRightEyePosition(rightEyeBody);
leftEyeCoe.add(leftEyeBody);
rightEyeCoe.add(rightEyeBody);
}
j3dView.setLeftManualEyeInCoexistence(leftEyeCoe);
j3dView.setRightManualEyeInCoexistence(rightEyeCoe);
j3dView.setBackClipPolicy(backClipPolicy);
j3dView.setFrontClipPolicy(frontClipPolicy);
j3dView.setBackClipDistance(backClipDistance);
j3dView.setFrontClipDistance(frontClipDistance);
j3dView.setScreenScalePolicy(screenScalePolicy);
j3dView.setScreenScale(screenScale);
j3dView.setFieldOfView(fieldOfView);
j3dView.setTrackingEnable(trackingEnable);
j3dView.setSceneAntialiasingEnable(antialiasingEnable);
if (screens.size() == 0) {
throw new IllegalStateException(
errorMessage(
creatingCommand, "View \"" + instanceName + "\" has no canvases or screens"));
}
ConfigScreen[] cs = new ConfigScreen[screens.size()];
screens.toArray(cs);
j3dViewer = new Viewer(cs, this, setVisible);
return j3dViewer;
}
/**
* Draws the five sides of the hemicube into the provided drawable
*
* @param drawable
* @param which
* @param near
* @param far
* @param bCollect
*/
public void drawHemiCube(
GLAutoDrawable drawable, int which, double near, double far, boolean bCollect) {
// TODO - PART 1 - DRAW HEMICUBE!
GL gl = drawable.getGL();
GLU glu = new GLU();
/* Return the face based on which parameter */
int[] vertices = scene.getObject().getFace(which);
/* Find the center of the face */
/* Center of the face is the average of the three vertices */
/* Using returned list of vertex indices, find the vertices
* corresponding to a particular face */
Vertex v1 = scene.getObject().vertexList.get(vertices[0]);
Vertex v2 = scene.getObject().vertexList.get(vertices[1]);
Vertex v3 = scene.getObject().vertexList.get(vertices[2]);
/* Locate center of face */
/* Average of three vertices */
Point3d centerPoint = new Point3d();
centerPoint = new Point3d(v1.p);
centerPoint.add(v2.p);
centerPoint.add(v3.p);
centerPoint.scale(0.33333);
/* Set up camera frame */
/* --- Surface normal --- */
/* Declare points of vertex for face */
Point3d p1 = new Point3d(v1.p);
Point3d p2 = new Point3d(v2.p);
Point3d p3 = new Point3d(v3.p);
/* Declare vector u as p2-p1 */
Point3d uVec = new Point3d(p2);
uVec.sub(p1);
Vector3d u = new Vector3d(uVec);
/* Declare vector v as p3-p1 */
Point3d vVec = new Point3d(p3);
vVec.sub(p1);
Vector3d v = new Vector3d(vVec);
/* Make normal vector */
Vector3d norm = new Vector3d();
norm.cross(u, v);
/* --- Vectors Orthonormal to Normal --- */
Point3d vec1pt = new Point3d(p1);
vec1pt.sub(p2);
Vector3d vec1 = new Vector3d(vec1pt);
vec1.cross(vec1, norm); // Cross surface normal with vec1 to get orthogonal vector
Vector3d vec2 = new Vector3d();
vec2.cross(
norm,
vec1); // Cross product of surface normal with new vector vec1 to get 2nd orthogonal vector
/* Make unit vectors */
norm.normalize();
vec1.normalize();
vec2.normalize();
/* Set up the five different frustums, and stitch together using viewPort */
/* Viewport to set up the view of the scene */
/* ----- FRONT FACE ----- */
gl.glPushMatrix();
gl.glViewport(0, 0, drawable.getWidth(), drawable.getHeight() / 3);
/* Set up frustums for this face */
gl.glMatrixMode(gl.GL_PROJECTION);
gl.glLoadIdentity();
gl.glFrustum(-near, near, -near, near, near, far);
/* Position camera at center of specified patch (which) */
gl.glMatrixMode(gl.GL_MODELVIEW);
gl.glLoadIdentity();
glu.gluLookAt(
centerPoint.x,
centerPoint.y,
centerPoint.z,
centerPoint.x + norm.x,
centerPoint.y + norm.y,
centerPoint.z + norm.z,
centerPoint.x + vec1.x,
centerPoint.y + vec1.y,
centerPoint.z + vec1.z);
/* Draw the frustum to screen */
draw(drawable, scene.drawStyle.IDENT);
gl.glPopMatrix();
/* ----- BOTTOM FACE ----- */
gl.glPushMatrix();
gl.glViewport(0, drawable.getHeight() / 3, drawable.getWidth(), drawable.getHeight() / 6);
gl.glMatrixMode(gl.GL_PROJECTION);
gl.glLoadIdentity();
gl.glFrustum(-near, near, 0, near, near, far);
/* Position camera at center of specified patch (which) */
gl.glMatrixMode(gl.GL_MODELVIEW);
gl.glLoadIdentity();
glu.gluLookAt(
centerPoint.x,
centerPoint.y,
centerPoint.z,
centerPoint.x + (-vec1.x),
centerPoint.y + (-vec1.y),
centerPoint.z + (-vec1.z),
centerPoint.x + norm.x,
centerPoint.y + norm.y,
centerPoint.z + norm.z);
/* Draw the frustum to screen */
draw(drawable, scene.drawStyle.IDENT);
gl.glPopMatrix();
/* ----- TOP FACE ----- */
gl.glPushMatrix();
gl.glViewport(
0,
(drawable.getHeight() / 3) + (drawable.getHeight() / 6),
drawable.getWidth(),
drawable.getHeight() / 6);
gl.glMatrixMode(gl.GL_PROJECTION);
gl.glLoadIdentity();
gl.glFrustum(-near, near, -near, 0, near, far);
/* Position camera at center of specified patch (which) */
gl.glMatrixMode(gl.GL_MODELVIEW);
gl.glLoadIdentity();
glu.gluLookAt(
centerPoint.x,
centerPoint.y,
centerPoint.z,
centerPoint.x + vec1.x,
centerPoint.y + vec1.y,
centerPoint.z + vec1.z,
centerPoint.x - norm.x,
centerPoint.y - norm.y,
centerPoint.z - norm.z);
/* Draw the frustum to screen */
draw(drawable, scene.drawStyle.IDENT);
gl.glPopMatrix();
/* ----- LEFT FACE ----- */
gl.glPushMatrix();
gl.glViewport(
0,
(drawable.getHeight() / 3) + 2 * (drawable.getHeight() / 6),
drawable.getWidth(),
drawable.getHeight() / 6);
gl.glMatrixMode(gl.GL_PROJECTION);
gl.glLoadIdentity();
gl.glFrustum(0, near, -near, near, near, far);
/* Position camera at center of specified patch (which) */
gl.glMatrixMode(gl.GL_MODELVIEW);
gl.glLoadIdentity();
glu.gluLookAt(
centerPoint.x,
centerPoint.y,
centerPoint.z,
centerPoint.x + vec2.x,
centerPoint.y + vec2.y,
centerPoint.z + vec2.z,
centerPoint.x + vec1.x,
centerPoint.y + vec1.y,
centerPoint.z + vec1.z);
/* Draw the frustum to screen */
draw(drawable, scene.drawStyle.IDENT);
gl.glPopMatrix();
/* ----- RIGHT FACE ----- */
gl.glPushMatrix();
gl.glViewport(
0,
(drawable.getHeight() / 3) + 3 * (drawable.getHeight() / 6),
drawable.getWidth(),
drawable.getHeight() / 6);
gl.glMatrixMode(gl.GL_PROJECTION);
gl.glLoadIdentity();
gl.glFrustum(near, 0, -near, near, near, far);
/* Position camera at center of specified patch (which) */
gl.glMatrixMode(gl.GL_MODELVIEW);
gl.glLoadIdentity();
glu.gluLookAt(
centerPoint.x,
centerPoint.y,
centerPoint.z,
centerPoint.x + (-vec2.x),
centerPoint.y + (-vec2.y),
centerPoint.z + (-vec2.z),
centerPoint.x + vec1.x,
centerPoint.y + vec1.y,
centerPoint.z + vec1.z);
/* Draw the frustum to screen */
draw(drawable, scene.drawStyle.IDENT);
gl.glPopMatrix();
/* ---- End Frustums ---- */
// if collecting the form factors, then read back and process the data
if (bCollect) {
gl.glFlush();
gl.glFinish();
gl.glReadPixels(
0, 0, divisions * 2, divisions * 6, GL.GL_RGBA, GL.GL_UNSIGNED_BYTE, pixelDataBuffer);
collectData(which);
}
}
private void init(final Content c, final int x, final int y) {
xLast = x;
yLast = y;
content = c;
// some transforms
c.getLocalToVworld(localToVWorld);
localToVWorldInverse.invert(localToVWorld);
canvas.getImagePlateToVworld(ipToVWorld);
ipToVWorldInverse.invert(ipToVWorld);
// calculate the canvas position in world coords
c.getContent().getCenter(centerInVWorld);
localToVWorld.transform(centerInVWorld);
ipToVWorldInverse.transform(centerInVWorld, centerInIp);
// get the eye point in world coordinates
canvas.getCenterEyeInImagePlate(eyePtInVWorld);
ipToVWorld.transform(eyePtInVWorld);
// use picking to infer the radius of the virtual sphere which is rotated
final Point3d p = univ.getPicker().getPickPointGeometry(c, x, y);
float r = 0, dD = 0;
if (p != null) {
pickPtInVWorld.set(p);
localToVWorld.transform(pickPtInVWorld);
r = (float) pickPtInVWorld.distance(centerInVWorld);
} else {
c.getContent().getMin(p1);
localToVWorld.transform(p1);
r = (float) p1.distance(centerInVWorld);
vec.sub(centerInVWorld, eyePtInVWorld);
vec.normalize();
vec.scale(-r);
pickPtInVWorld.add(centerInVWorld, vec);
}
dD = (float) pickPtInVWorld.distance(eyePtInVWorld);
// calculate distance between eye and canvas point
canvas.getPixelLocationInImagePlate(x, y, p1);
ipToVWorld.transform(p1);
final float dd = (float) p1.distance(eyePtInVWorld);
// calculate the virtual distance between two neighboring pixels
canvas.getPixelLocationInImagePlate(x + 1, y, p2);
ipToVWorld.transform(p2);
final float dx = (float) p1.distance(p2);
// calculate the virtual distance between two neighboring pixels
canvas.getPixelLocationInImagePlate(x, y + 1, p3);
ipToVWorld.transform(p3);
final float dy = (float) p1.distance(p3);
final float dX = dD / dd * dx;
final float dY = dD / dd * dy;
anglePerPix = Math.atan2(dX, r);
univ.getViewPlatformTransformer().getYDir(axisPerDx, ipToVWorld);
univ.getViewPlatformTransformer().getXDir(axisPerDy, ipToVWorld);
translationPerDx.set(axisPerDy);
translationPerDx.scale(dX);
translationPerDy.set(axisPerDx);
translationPerDy.scale(dY);
rotateTG = c.getLocalRotate();
translateTG = c.getLocalTranslate();
c.getContent().getCenter(vec);
transl_inv.set(vec);
vec.set(-vec.x, -vec.y, -vec.z);
transl.set(vec);
}
