protected void doRenderGeometry(
DrawContext dc, String drawStyle, List<LatLon> locations, List<Boolean> edgeFlags) {
if (dc == null) {
String message = Logging.getMessage("nullValue.DrawContextIsNull");
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
if (dc.getGL() == null) {
String message = Logging.getMessage("nullValue.DrawingContextGLIsNull");
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
if (locations == null) {
String message = "nullValue.LocationsIsNull";
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
if (locations.size() == 0) return;
double[] altitudes = this.getAltitudes(dc.getVerticalExaggeration());
boolean[] terrainConformant = this.isTerrainConforming();
boolean enableCaps = this.isEnableCaps();
int subdivisions = this.subdivisions;
if (this.getAltitudeDatum()[0].equals(AVKey.ABOVE_GROUND_REFERENCE)
|| this.getAltitudeDatum()[1].equals(AVKey.ABOVE_GROUND_REFERENCE)) {
this.adjustForGroundReference(dc, terrainConformant, altitudes);
}
if (this.isEnableLevelOfDetail()) {
DetailLevel level = this.computeDetailLevel(dc);
Object o = level.getValue(SUBDIVISIONS);
if (o != null && o instanceof Integer) subdivisions = (Integer) o;
o = level.getValue(DISABLE_TERRAIN_CONFORMANCE);
if (o != null && o instanceof Boolean && (Boolean) o)
terrainConformant[0] = terrainConformant[1] = false;
}
Vec4 referenceCenter = this.computeReferenceCenter(dc);
this.setExpiryTime(this.nextExpiryTime(dc, terrainConformant));
this.clearElevationMap();
GL gl = dc.getGL();
OGLStackHandler ogsh = new OGLStackHandler();
try {
dc.getView().pushReferenceCenter(dc, referenceCenter);
if (Airspace.DRAW_STYLE_FILL.equals(drawStyle)) {
if (enableCaps && !this.isAirspaceCollapsed()) {
ogsh.pushAttrib(gl, GL.GL_POLYGON_BIT);
gl.glEnable(GL.GL_CULL_FACE);
gl.glFrontFace(GL.GL_CCW);
}
this.drawPolygonFill(
dc,
locations,
edgeFlags,
altitudes,
terrainConformant,
enableCaps,
subdivisions,
referenceCenter);
} else if (Airspace.DRAW_STYLE_OUTLINE.equals(drawStyle)) {
this.drawPolygonOutline(
dc,
locations,
edgeFlags,
altitudes,
terrainConformant,
enableCaps,
subdivisions,
referenceCenter);
}
} finally {
dc.getView().popReferenceCenter(dc);
ogsh.pop(gl);
}
}
protected void doRenderGeometry(DrawContext dc, String drawStyle) {
if (dc == null) {
String message = Logging.getMessage("nullValue.DrawContextIsNull");
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
if (dc.getGL() == null) {
String message = Logging.getMessage("nullValue.DrawingContextGLIsNull");
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
double[] angles = this.computeAngles();
// Angles are equal, fallback to drawing a closed cylinder.
if (angles == null) {
super.doRenderGeometry(dc, drawStyle);
return;
}
double[] altitudes = this.getAltitudes(dc.getVerticalExaggeration());
boolean[] terrainConformant = this.isTerrainConforming();
double[] radii = this.getRadii();
int slices = this.getSlices();
int stacks = this.getStacks();
int loops = this.getLoops();
if (this.isEnableLevelOfDetail()) {
DetailLevel level = this.computeDetailLevel(dc);
Object o = level.getValue(SLICES);
if (o != null && o instanceof Integer) slices = (Integer) o;
o = level.getValue(STACKS);
if (o != null && o instanceof Integer) stacks = (Integer) o;
o = level.getValue(LOOPS);
if (o != null && o instanceof Integer) loops = (Integer) o;
o = level.getValue(DISABLE_TERRAIN_CONFORMANCE);
if (o != null && o instanceof Boolean && ((Boolean) o))
terrainConformant[0] = terrainConformant[1] = false;
}
Vec4 referenceCenter = this.computeReferenceCenter(dc);
this.setExpiryTime(this.nextExpiryTime(dc, terrainConformant));
this.clearElevationMap();
GL gl = dc.getGL();
OGLStackHandler ogsh = new OGLStackHandler();
try {
dc.getView().pushReferenceCenter(dc, referenceCenter);
if (Airspace.DRAW_STYLE_OUTLINE.equals(drawStyle)) {
this.drawRadialWallOutline(
dc,
radii,
angles[0],
altitudes,
terrainConformant,
loops,
stacks,
GeometryBuilder.INSIDE,
referenceCenter);
this.drawRadialWallOutline(
dc,
radii,
angles[1],
altitudes,
terrainConformant,
loops,
stacks,
GeometryBuilder.OUTSIDE,
referenceCenter);
// Outer cylinder isn't rendered if outer radius is zero.
if (radii[1] != 0.0) {
this.drawPartialCylinderOutline(
dc,
radii[1],
altitudes,
terrainConformant,
slices,
stacks,
GeometryBuilder.OUTSIDE,
angles[0],
angles[2],
referenceCenter);
}
// Inner cylinder isn't rendered if inner radius is zero.
if (radii[0] != 0.0) {
this.drawPartialCylinderOutline(
dc,
radii[0],
altitudes,
terrainConformant,
slices,
stacks,
GeometryBuilder.INSIDE,
angles[0],
angles[2],
referenceCenter);
}
} else if (Airspace.DRAW_STYLE_FILL.equals(drawStyle)) {
if (this.isEnableCaps()) {
ogsh.pushAttrib(gl, GL.GL_POLYGON_BIT);
gl.glEnable(GL.GL_CULL_FACE);
gl.glFrontFace(GL.GL_CCW);
}
if (this.isEnableCaps()) {
// Caps aren't rendered if radii are equal.
if (radii[0] != radii[1]) {
this.drawPartialDisk(
dc,
radii,
altitudes[1],
terrainConformant[1],
slices,
loops,
GeometryBuilder.OUTSIDE,
angles[0],
angles[2],
referenceCenter);
// Bottom cap isn't rendered if airspace is collapsed.
if (!this.isAirspaceCollapsed()) {
this.drawPartialDisk(
dc,
radii,
altitudes[0],
terrainConformant[0],
slices,
loops,
GeometryBuilder.INSIDE,
angles[0],
angles[2],
referenceCenter);
}
}
}
// Cylinders aren't rendered if airspace is collapsed.
if (!this.isAirspaceCollapsed()) {
this.drawRadialWall(
dc,
radii,
angles[0],
altitudes,
terrainConformant,
loops,
stacks,
GeometryBuilder.INSIDE,
referenceCenter);
this.drawRadialWall(
dc,
radii,
angles[1],
altitudes,
terrainConformant,
loops,
stacks,
GeometryBuilder.OUTSIDE,
referenceCenter);
// Outer cylinder isn't rendered if outer radius is zero.
if (radii[1] != 0.0) {
this.drawPartialCylinder(
dc,
radii[1],
altitudes,
terrainConformant,
slices,
stacks,
GeometryBuilder.OUTSIDE,
angles[0],
angles[2],
referenceCenter);
}
// Inner cylinder isn't rendered if inner radius is zero.
if (radii[0] != 0.0) {
this.drawPartialCylinder(
dc,
radii[0],
altitudes,
terrainConformant,
slices,
stacks,
GeometryBuilder.INSIDE,
angles[0],
angles[2],
referenceCenter);
}
}
}
} finally {
dc.getView().popReferenceCenter(dc);
ogsh.pop(gl);
}
}
protected void drawIcon(DrawContext dc) {
if (this.getIconFilePath() == null) return;
GL gl = dc.getGL();
OGLStackHandler ogsh = new OGLStackHandler();
try {
// Initialize texture if necessary
Texture iconTexture = dc.getTextureCache().getTexture(this.getIconFilePath());
if (iconTexture == null) {
this.initializeTexture(dc);
iconTexture = dc.getTextureCache().getTexture(this.getIconFilePath());
if (iconTexture == null) {
String msg = Logging.getMessage("generic.ImageReadFailed");
Logging.logger().finer(msg);
return;
}
}
gl.glDisable(GL.GL_DEPTH_TEST);
double width = this.getScaledIconWidth();
double height = this.getScaledIconHeight();
// Load a parallel projection with xy dimensions (viewportWidth, viewportHeight)
// into the GL projection matrix.
java.awt.Rectangle viewport = dc.getView().getViewport();
ogsh.pushProjectionIdentity(gl);
double maxwh = width > height ? width : height;
gl.glOrtho(0d, viewport.width, 0d, viewport.height, -0.6 * maxwh, 0.6 * maxwh);
// Translate and scale
ogsh.pushModelviewIdentity(gl);
double scale = this.computeScale(viewport);
Vec4 locationSW = this.computeLocation(viewport, scale);
gl.glTranslated(locationSW.x(), locationSW.y(), locationSW.z());
// Scale to 0..1 space
gl.glScaled(scale, scale, 1);
gl.glScaled(width, height, 1d);
if (!dc.isPickingMode()) {
gl.glEnable(GL.GL_BLEND);
gl.glBlendFunc(GL.GL_SRC_ALPHA, GL.GL_ONE_MINUS_SRC_ALPHA);
// Draw background color behind the map
gl.glColor4ub(
(byte) this.backColor.getRed(),
(byte) this.backColor.getGreen(),
(byte) this.backColor.getBlue(),
(byte) (this.backColor.getAlpha() * this.getOpacity()));
dc.drawUnitQuad();
// Draw world map icon
gl.glColor4d(1d, 1d, 1d, this.getOpacity());
gl.glEnable(GL.GL_TEXTURE_2D);
iconTexture.bind();
TextureCoords texCoords = iconTexture.getImageTexCoords();
dc.drawUnitQuad(texCoords);
gl.glBindTexture(GL.GL_TEXTURE_2D, 0);
gl.glDisable(GL.GL_TEXTURE_2D);
// Draw crosshair for current location
gl.glLoadIdentity();
gl.glTranslated(locationSW.x(), locationSW.y(), locationSW.z());
// Scale to width x height space
gl.glScaled(scale, scale, 1);
// Set color
float[] colorRGB = this.color.getRGBColorComponents(null);
gl.glColor4d(colorRGB[0], colorRGB[1], colorRGB[2], this.getOpacity());
// Draw crosshair
Position groundPos = this.computeGroundPosition(dc, dc.getView());
if (groundPos != null) {
int x = (int) (width * (groundPos.getLongitude().degrees + 180) / 360);
int y = (int) (height * (groundPos.getLatitude().degrees + 90) / 180);
int w = 10; // cross branch length
// Draw
gl.glBegin(GL.GL_LINE_STRIP);
gl.glVertex3d(x - w, y, 0);
gl.glVertex3d(x + w + 1, y, 0);
gl.glEnd();
gl.glBegin(GL.GL_LINE_STRIP);
gl.glVertex3d(x, y - w, 0);
gl.glVertex3d(x, y + w + 1, 0);
gl.glEnd();
}
// Draw view footprint in map icon space
if (this.showFootprint) {
this.footPrintPositions = this.computeViewFootPrint(dc, 32);
if (this.footPrintPositions != null) {
gl.glBegin(GL.GL_LINE_STRIP);
LatLon p1 = this.footPrintPositions.get(0);
for (LatLon p2 : this.footPrintPositions) {
int x = (int) (width * (p2.getLongitude().degrees + 180) / 360);
int y = (int) (height * (p2.getLatitude().degrees + 90) / 180);
// Draw
if (LatLon.locationsCrossDateline(p1, p2)) {
int y1 = (int) (height * (p1.getLatitude().degrees + 90) / 180);
gl.glVertex3d(x < width / 2 ? width : 0, (y1 + y) / 2, 0);
gl.glEnd();
gl.glBegin(GL.GL_LINE_STRIP);
gl.glVertex3d(x < width / 2 ? 0 : width, (y1 + y) / 2, 0);
}
gl.glVertex3d(x, y, 0);
p1 = p2;
}
gl.glEnd();
}
}
// Draw 1px border around and inside the map
gl.glBegin(GL.GL_LINE_STRIP);
gl.glVertex3d(0, 0, 0);
gl.glVertex3d(width, 0, 0);
gl.glVertex3d(width, height - 1, 0);
gl.glVertex3d(0, height - 1, 0);
gl.glVertex3d(0, 0, 0);
gl.glEnd();
} else {
// Picking
this.pickSupport.clearPickList();
this.pickSupport.beginPicking(dc);
// Where in the world are we picking ?
Position pickPosition =
computePickPosition(
dc, locationSW, new Dimension((int) (width * scale), (int) (height * scale)));
Color color = dc.getUniquePickColor();
int colorCode = color.getRGB();
this.pickSupport.addPickableObject(colorCode, this, pickPosition, false);
gl.glColor3ub((byte) color.getRed(), (byte) color.getGreen(), (byte) color.getBlue());
dc.drawUnitQuad();
this.pickSupport.endPicking(dc);
this.pickSupport.resolvePick(dc, dc.getPickPoint(), this);
}
} finally {
dc.restoreDefaultDepthTesting();
dc.restoreDefaultCurrentColor();
if (dc.isPickingMode()) dc.restoreDefaultBlending();
ogsh.pop(gl);
}
}