List of usage examples for javax.media.j3d Transform3D lookAt
public void lookAt(Point3d eye, Point3d center, Vector3d up)
From source file:ucar.unidata.idv.flythrough.Flythrough.java
/** * _more_//w w w . j av a 2s . c om * * @param pt1 _more_ * @param xyz1 _more_ * @param xyz2 _more_ * @param actualPoint _more_ * @param animateMove _more_ */ protected void goTo(FlythroughPoint pt1, double[] xyz1, double[] xyz2, double[] actualPoint, boolean animateMove) { currentHeading = 180; if (actualPoint == null) { actualPoint = xyz2; } NavigatedDisplay navDisplay = viewManager.getNavigatedDisplay(); MouseBehavior mouseBehavior = navDisplay.getMouseBehavior(); double[] currentMatrix = navDisplay.getProjectionMatrix(); double[] aspect = navDisplay.getDisplayAspect(); try { if (pt1.getDescription() != null) { getHtmlView().setText(pt1.getDescription()); } else { getHtmlView().setText(""); } processReadout(pt1); float x1 = (float) xyz1[0]; float y1 = (float) xyz1[1]; float z1 = (float) xyz1[2]; float x2 = (float) xyz2[0]; float y2 = (float) xyz2[1]; float z2 = (float) xyz2[2]; double zoom = (pt1.hasZoom() ? pt1.getZoom() : getZoom()); if (zoom == 0) { zoom = 0.1; } double tiltx = (pt1.hasTiltX() ? pt1.getTiltX() : tilt[0]); double tilty = (pt1.hasTiltY() ? pt1.getTiltY() : tilt[1]); double tiltz = (pt1.hasTiltZ() ? pt1.getTiltZ() : tilt[2]); //Check for nans if ((x2 != x2) || (y2 != y2) || (z2 != z2)) { return; } if ((x1 != x1) || (y1 != y1) || (z1 != z1)) { return; } double[] m = pt1.getMatrix(); if (m == null) { m = new double[16]; Transform3D t = new Transform3D(); if (orientation.equals(ORIENT_UP)) { y2 = y1 + 100; x2 = x1; } else if (orientation.equals(ORIENT_DOWN)) { y2 = y1 - 100; x2 = x1; } else if (orientation.equals(ORIENT_LEFT)) { x2 = x1 - 100; y2 = y1; } else if (orientation.equals(ORIENT_RIGHT)) { x2 = x1 + 100; y2 = y1; } if ((x1 == x2) && (y1 == y2) && (z1 == z2)) { return; } Vector3d upVector; if (doGlobe()) { upVector = new Vector3d(x1, y1, z1); } else { upVector = new Vector3d(0, 0, 1); } //Keep flat in z for non globe Point3d p1 = new Point3d(x1, y1, z1); Point3d p2 = new Point3d(x2, y2, ((!getUseFixedZ() || doGlobe()) ? z2 : z1)); t.lookAt(p1, p2, upVector); t.get(m); EarthLocation el1 = navDisplay.getEarthLocation(p1.x, p1.y, p1.z, false); EarthLocation el2 = navDisplay.getEarthLocation(p2.x, p2.y, p2.z, false); Bearing bearing = Bearing.calculateBearing(new LatLonPointImpl(getLat(el1), getLon(el1)), new LatLonPointImpl(getLat(el2), getLon(el2)), null); currentHeading = bearing.getAngle(); double[] tiltMatrix = mouseBehavior.make_matrix(tiltx, tilty, tiltz, 1.0, 1.0, 1.0, 0.0, 0.0, 0.0); m = mouseBehavior.multiply_matrix(tiltMatrix, m); if (aspect != null) { double[] aspectMatrix = mouseBehavior.make_matrix(0.0, 0.0, 0.0, aspect[0], aspect[1], aspect[2], 0.0, 0.0, 0.0); // m = mouseBehavior.multiply_matrix(aspectMatrix, m); } double[] scaleMatrix = mouseBehavior.make_matrix(0.0, 0.0, 0.0, zoom, 0.0, 0.0, 0.0); m = mouseBehavior.multiply_matrix(scaleMatrix, m); } currentPoint = pt1; location = currentPoint.getEarthLocation(); if (doGlobe()) { setPts(locationLine, 0, x1 * 2, 0, y1 * 2, 0, z1 * 2); // setPts(locationLine2, 0, x2 * 2, 0, y2 * 2, 0, z2 * 2); } else { setPts(locationLine, x1, x1, y1, y1, 1, -1); } RealTuple markerLocation = new RealTuple(RealTupleType.SpatialCartesian3DTuple, new double[] { x1, y1, z1 }); if (xyz1[0] != xyz2[0]) { Transform3D rotTransform; VisADGeometryArray marker = (VisADGeometryArray) getMarker().clone(); double rotx = 0; double roty = 0; double rotz = 0; rotz = -Math.toDegrees(Math.atan2(actualPoint[1] - xyz1[1], actualPoint[0] - xyz1[0])) + 90; if (doGlobe()) { Vector3d upVector = new Vector3d(x1, y1, z1); rotTransform = new Transform3D(); rotTransform.lookAt(new Point3d(x1, y1, z1), new Point3d(x2, y2, z2), upVector); Matrix3d m3d = new Matrix3d(); rotTransform.get(m3d); rotTransform = new Transform3D(m3d, new Vector3d(0, 0, 0), 1); rotTransform.invert(); // ShapeUtility.rotate(marker, rotTransform,(float)x1,(float)y1,(float)z1); ShapeUtility.rotate(marker, rotTransform); } else { double[] markerM = navDisplay.getMouseBehavior().make_matrix(rotx, roty, rotz, 1.0, 0.0, 0.0, 0.0); rotTransform = new Transform3D(markerM); ShapeUtility.rotate(marker, rotTransform); } locationMarker.setPoint(markerLocation, marker); } else { locationMarker.setPoint(markerLocation); } locationLine.setVisible(showLine); // locationLine2.setVisible(showLine); locationMarker.setVisible(showMarker); if (hasTimes && getShowTimes()) { DateTime dttm = pt1.getDateTime(); if (dttm != null) { viewManager.getAnimationWidget().setTimeFromUser(dttm); } } if (changeViewpointCbx.isSelected()) { if (animateMove) { navDisplay.animateMatrix(m, animationSpeed); } else { navDisplay.setProjectionMatrix(m); } } if (!Misc.equals(lastLocation, pt1.getEarthLocation())) { lastLocation = pt1.getEarthLocation(); EarthLocationTuple tuplePosition = new EarthLocationTuple(lastLocation.getLatitude(), lastLocation.getLongitude(), lastLocation.getAltitude()); doShare(ucar.unidata.idv.control.ProbeControl.SHARE_POSITION, tuplePosition); } } catch (NumberFormatException exc) { logException("Error parsing number:" + exc, exc); } catch (javax.media.j3d.BadTransformException bte) { try { navDisplay.setProjectionMatrix(currentMatrix); } catch (Exception ignore) { } } catch (Exception exc) { logException("Error", exc); if (animationWidget != null) { animationWidget.setRunning(false); } return; } }