public OMGraphicList prepare() {
if (layer != null) {
// setBuffer(null);
Projection proj = layer.getProjection();
if (layer.isProjectionOK(proj)) {
// set the offsets depending on how much the image moves
Point2D ul = proj.getUpperLeft();
if (oldUL != null
&& !oldUL.equals(ul)
&& oldScale == proj.getScale()
&& proj.getClass().equals(oldProjType)) {
Point2D currentPoint = proj.forward(ul);
Point2D oldPoint = proj.forward(oldUL);
offset.setLocation(
oldPoint.getX() - currentPoint.getX(), oldPoint.getY() - currentPoint.getY());
layer.repaint();
}
oldUL = ul;
oldProjType = ((Proj) proj).getClass();
oldScale = proj.getScale();
OMGraphicList list = layer.prepare();
setBuffer(createAndPaintImageBuffer(list));
return list;
} else {
logger.warning("NULL projection, can't do anything.");
}
} else {
logger.warning("NULL layer, can't do anything.");
}
return null;
}
/**
* Function to add a specific message to the map
*
* @param message
*/
public void setMarker(MsiMessageExtended message) {
this.message = message;
this.msiLocation = message.msiMessage.getLocation().getCenter();
LatLonPoint center = (LatLonPoint) mapBean.getCenter();
GeoLocation geoCenter = new GeoLocation(center.getLatitude(), center.getLongitude());
double bearing = Calculator.bearing(geoCenter, msiLocation, Heading.RL);
Projection projection = mapBean.getProjection();
Point2D projectedMSI =
projection.forward(msiLocation.getLatitude(), msiLocation.getLongitude());
Point2D origin = new Point2D.Double(mapBean.getWidth() * 0.5f, mapBean.getHeight() * 0.5f);
Line2D direction = new Line2D.Double(origin, projectedMSI);
double boxWidth = mapBean.getWidth() - IMAGE_SIZE / 2;
double boxHeight = mapBean.getHeight() - IMAGE_SIZE / 2;
Line2D topFrame = new Line2D.Double(IMAGE_SIZE / 2, IMAGE_SIZE / 2, boxWidth, IMAGE_SIZE / 2);
Line2D rightFrame = new Line2D.Double(boxWidth, IMAGE_SIZE / 2, boxWidth, boxHeight);
Line2D bottomFrame = new Line2D.Double(IMAGE_SIZE / 2, boxHeight, boxWidth, boxHeight);
Line2D leftFrame = new Line2D.Double(IMAGE_SIZE / 2, IMAGE_SIZE / 2, IMAGE_SIZE / 2, boxHeight);
boolean intersects = false;
if (intersects(direction, topFrame)) intersects = true;
if (intersects(direction, rightFrame)) intersects = true;
if (intersects(direction, bottomFrame)) intersects = true;
if (intersects(direction, leftFrame)) intersects = true;
if (!intersects) return;
int x = Math.round((float) intersection.getX());
int y = Math.round((float) intersection.getY());
directionRaster = new CenterRaster(x, y, directionImage);
directionRaster.setRotationAngle(Math.toRadians(bearing));
markerRaster = new CenterRaster(x, y, markerImage);
add(markerRaster);
add(directionRaster);
}
/**
* Prepare the spline for rendering.
*
* @see com.bbn.openmap.omGraphics.OMGeometry#generate(Projection)
* @param proj Projection
* @return true if generate was successful
*/
public boolean generate(Projection proj) {
setNeedToRegenerate(true);
if (proj == null) {
Debug.message("omspline", "OMSpline: null projection in generate!");
return false;
}
NatCubicSpline spline = isGeometryClosed() ? natCubicClosed : natCubic;
// HACK : should use something else than nsegs
spline.setSteps(nsegs);
float[][] splinePoints;
switch (renderType) {
case RENDERTYPE_XY:
if (xs == null) {
Debug.message("omspline", "OMSpline x/y rendertype null coordinates");
setNeedToRegenerate(true);
return false;
}
splinePoints = spline.calc(xs, ys);
xpoints = new float[1][0];
xpoints[0] = splinePoints[0];
ypoints = new float[1][0];
ypoints[0] = splinePoints[1];
break;
case RENDERTYPE_OFFSET:
if (xs == null) {
Debug.message("omspline", "OMSpline offset rendertype null coordinates");
setNeedToRegenerate(true);
return false;
}
int npts = xs.length;
float[] _x = new float[npts];
float[] _y = new float[npts];
// forward project the radian point
Point origin = new Point();
if (proj instanceof GeoProj) {
((GeoProj) proj).forward(lat, lon, origin, true); // radians
} else {
proj.forward(Math.toDegrees(lat), Math.toDegrees(lon), origin);
}
if (coordMode == COORDMODE_ORIGIN) {
for (int i = 0; i < npts; i++) {
_x[i] = (float) (xs[i] + origin.getX());
_y[i] = (float) (ys[i] + origin.getY());
}
} else { // CModePrevious offset deltas
_x[0] = xs[0] + origin.x;
_y[0] = ys[0] + origin.y;
for (int i = 1; i < npts; i++) {
_x[i] = xs[i] + _x[i - 1];
_y[i] = ys[i] + _y[i - 1];
}
}
splinePoints = spline.calc(_x, _y);
xpoints = new float[1][0];
xpoints[0] = splinePoints[0];
ypoints = new float[1][0];
ypoints[0] = splinePoints[1];
break;
case RENDERTYPE_LATLON:
if (rawllpts == null) {
Debug.message("omspline", "OMSpline latlon rendertype null coordinates");
setNeedToRegenerate(true);
return false;
}
// spline creation ; precision 1e-8 rad = 0.002"
double[] splinellpts = spline.calc(rawllpts, 1e-8f);
// polygon/polyline project the polygon/polyline.
// Vertices should already be in radians.
ArrayList<float[]> vector;
if (proj instanceof GeoProj) {
vector = ((GeoProj) proj).forwardPoly(splinellpts, lineType, nsegs, isPolygon);
} else {
vector = proj.forwardPoly(rawllpts, isPolygon);
}
int size = vector.size();
xpoints = new float[(int) (size / 2)][0];
ypoints = new float[xpoints.length][0];
for (int i = 0, j = 0; i < size; i += 2, j++) {
xpoints[j] = vector.get(i);
ypoints[j] = vector.get(i + 1);
}
if (!doShapes && size > 1) {
setNeedToRegenerate(false);
initLabelingDuringGenerate();
setLabelLocation(xpoints[0], ypoints[0]);
return true;
}
break;
case RENDERTYPE_UNKNOWN:
Debug.error("OMSpline.generate: invalid RenderType");
return false;
}
setNeedToRegenerate(false);
setShape(createShape());
setLabelLocation(getShape(), proj);
return true;
}
/**
* Since the image doesn't necessarily need to be regenerated when it is merely moved, raster
* objects have this function, called from generate() and when a placement attribute is changed.
*
* @return true if enough information is in the object for proper placement.
* @param proj projection of window.
*/
protected boolean position(Projection proj) {
if (proj == null) {
logger.fine("OMRasterObject: null projection in position!");
return false;
}
projWidth = proj.getWidth();
projHeight = proj.getHeight();
switch (renderType) {
case RENDERTYPE_LATLON:
if (!proj.isPlotable(lat, lon)) {
if (DEBUG) {
logger.fine("OMRasterObject: point is not plotable!");
}
setNeedToReposition(true); // so we don't render it!
return false;
}
point1 = (Point) proj.forward(lat, lon, new Point());
break;
case RENDERTYPE_XY:
point1 = new Point(x, y);
break;
case RENDERTYPE_OFFSET:
if (!proj.isPlotable(lat, lon)) {
if (DEBUG) {
logger.fine("OMRasterObject: point is not plotable!");
}
setNeedToReposition(true); // so we don't render it!
return false;
}
point1 = (Point) proj.forward(lat, lon, new Point());
point1.x += x;
point1.y += y;
break;
case RENDERTYPE_UNKNOWN:
if (DEBUG) {
logger.fine("OMRasterObject.position(): ignoring unknown rendertype, wingin' it");
}
if (lat == 0 && lon == 0) {
if (x == 0 && y == 0) {
if (DEBUG) {
logger.fine(
"OMRasterObject.position(): Not enough info in object to place it reasonably.");
}
point1 = new Point(-width, -height);
point2 = new Point(0, 0);
return false;
} else {
point1 = new Point(x, y);
}
} else {
if (!proj.isPlotable(lat, lon)) {
logger.fine("OMRasterObject: point is not plotable!");
return false;
}
point1 = (Point) proj.forward(lat, lon, new Point());
}
break;
}
point2 = new Point(0, 0);
point2.x = point1.x + width;
point2.y = point1.y + height;
setNeedToReposition(false);
return true;
}