protected static boolean isTileVisible(
      DrawContext dc, Tile tile, double minDistanceSquared, double maxDistanceSquared) {
    if (!tile.getSector().intersects(dc.getVisibleSector())) return false;

    View view = dc.getView();
    Position eyePos = view.getEyePosition();
    if (eyePos == null) return false;

    Angle lat =
        clampAngle(
            eyePos.getLatitude(),
            tile.getSector().getMinLatitude(),
            tile.getSector().getMaxLatitude());
    Angle lon =
        clampAngle(
            eyePos.getLongitude(),
            tile.getSector().getMinLongitude(),
            tile.getSector().getMaxLongitude());
    Vec4 p = dc.getGlobe().computePointFromPosition(lat, lon, 0d);
    double distSquared = dc.getView().getEyePoint().distanceToSquared3(p);
    //noinspection RedundantIfStatement
    if (minDistanceSquared > distSquared || maxDistanceSquared < distSquared) return false;

    return true;
  }
  /**
   * Establish the OpenGL state needed to draw text.
   *
   * @param dc the current draw context.
   */
  protected void beginDrawing(DrawContext dc) {
    GL gl = dc.getGL();

    int attrMask =
        GL.GL_DEPTH_BUFFER_BIT // for depth test, depth mask and depth func
            | GL.GL_TRANSFORM_BIT // for modelview and perspective
            | GL.GL_VIEWPORT_BIT // for depth range
            | GL.GL_CURRENT_BIT // for current color
            | GL.GL_COLOR_BUFFER_BIT // for alpha test func and ref, and blend
            | GL.GL_DEPTH_BUFFER_BIT // for depth func
            | GL.GL_ENABLE_BIT; // for enable/disable changes

    this.BEogsh.pushAttrib(gl, attrMask);

    if (!dc.isPickingMode()) {
      gl.glEnable(GL.GL_BLEND);
      OGLUtil.applyBlending(gl, false);
    }

    // Do not depth buffer the label. (Labels beyond the horizon are culled above.)
    gl.glDisable(GL.GL_DEPTH_TEST);
    gl.glDepthMask(false);

    // The image is drawn using a parallel projection.
    this.BEogsh.pushProjectionIdentity(gl);
    gl.glOrtho(
        0d, dc.getView().getViewport().width, 0d, dc.getView().getViewport().height, -1d, 1d);

    this.BEogsh.pushModelviewIdentity(gl);
  }
  protected Vec4 computeReferencePoint(DrawContext dc) {
    if (dc.getViewportCenterPosition() != null)
      return dc.getGlobe().computePointFromPosition(dc.getViewportCenterPosition());

    java.awt.geom.Rectangle2D viewport = dc.getView().getViewport();
    int x = (int) viewport.getWidth() / 2;
    for (int y = (int) (0.5 * viewport.getHeight()); y >= 0; y--) {
      Position pos = dc.getView().computePositionFromScreenPoint(x, y);
      if (pos == null) continue;

      return dc.getGlobe().computePointFromPosition(pos.getLatitude(), pos.getLongitude(), 0d);
    }

    return null;
  }
示例#4
0
  // X-PATCH Marjan
  // extracted skip conditions into an overrideable method
  protected boolean meetsRenderCriteria(
      DrawContext dc, WWIcon icon, Vec4 iconPoint, double eyeDistance) {
    if (this.isHorizonClippingEnabled() && eyeDistance > dc.getView().getHorizonDistance()) {
      return false; // don't render horizon-clipped icons
    }

    // If enabled, eliminate icons outside the view volume. Primarily used to control icon
    // visibility beyond
    // the view volume's far clipping plane.
    if (this.isViewClippingEnabled()
        && !dc.getView().getFrustumInModelCoordinates().contains(iconPoint)) {
      return false; // don't render frustum-clipped icons
    }

    return true;
  }
示例#5
0
  protected void setDepthFunc(DrawContext dc, OrderedIcon uIcon, Vec4 screenPoint) {
    GL gl = dc.getGL();

    if (uIcon.icon.isAlwaysOnTop()) {
      gl.glDepthFunc(GL.GL_ALWAYS);
      return;
    }

    Position eyePos = dc.getView().getEyePosition();
    if (eyePos == null) {
      gl.glDepthFunc(GL.GL_ALWAYS);
      return;
    }

    double altitude = eyePos.getElevation();
    if (altitude < (dc.getGlobe().getMaxElevation() * dc.getVerticalExaggeration())) {
      double depth = screenPoint.z - (8d * 0.00048875809d);
      depth = depth < 0d ? 0d : (depth > 1d ? 1d : depth);
      gl.glDepthFunc(GL.GL_LESS);
      gl.glDepthRange(depth, depth);
    } else if (uIcon.eyeDistance > uIcon.horizonDistance) {
      gl.glDepthFunc(GL.GL_EQUAL);
      gl.glDepthRange(1d, 1d);
    } else {
      gl.glDepthFunc(GL.GL_ALWAYS);
    }
  }
示例#6
0
  protected void beginDrawIcons(DrawContext dc) {
    GL2 gl = dc.getGL().getGL2(); // GL initialization checks for GL2 compatibility.

    this.oglStackHandler.clear();

    int attributeMask =
        GL2.GL_DEPTH_BUFFER_BIT // for depth test, depth mask and depth func
            | GL2.GL_TRANSFORM_BIT // for modelview and perspective
            | GL2.GL_VIEWPORT_BIT // for depth range
            | GL2.GL_CURRENT_BIT // for current color
            | GL2.GL_COLOR_BUFFER_BIT // for alpha test func and ref, and blend
            | GL2.GL_DEPTH_BUFFER_BIT // for depth func
            | GL2.GL_ENABLE_BIT; // for enable/disable changes
    this.oglStackHandler.pushAttrib(gl, attributeMask);

    // Apply the depth buffer but don't change it.
    if ((!dc.isDeepPickingEnabled())) gl.glEnable(GL.GL_DEPTH_TEST);
    gl.glDepthMask(false);

    // Suppress any fully transparent image pixels
    gl.glEnable(GL2.GL_ALPHA_TEST);
    gl.glAlphaFunc(GL2.GL_GREATER, 0.001f);

    // Load a parallel projection with dimensions (viewportWidth, viewportHeight)
    this.oglStackHandler.pushProjectionIdentity(gl);
    gl.glOrtho(
        0d, dc.getView().getViewport().width, 0d, dc.getView().getViewport().height, -1d, 1d);

    this.oglStackHandler.pushModelview(gl);
    this.oglStackHandler.pushTexture(gl);

    if (dc.isPickingMode()) {
      this.pickSupport.beginPicking(dc);

      // Set up to replace the non-transparent texture colors with the single pick color.
      gl.glEnable(GL.GL_TEXTURE_2D);
      gl.glTexEnvf(GL2.GL_TEXTURE_ENV, GL2.GL_TEXTURE_ENV_MODE, GL2.GL_COMBINE);
      gl.glTexEnvf(GL2.GL_TEXTURE_ENV, GL2.GL_SRC0_RGB, GL2.GL_PREVIOUS);
      gl.glTexEnvf(GL2.GL_TEXTURE_ENV, GL2.GL_COMBINE_RGB, GL2.GL_REPLACE);
    } else {
      gl.glEnable(GL.GL_TEXTURE_2D);
      gl.glEnable(GL.GL_BLEND);
      gl.glBlendFunc(GL.GL_ONE, GL.GL_ONE_MINUS_SRC_ALPHA);
    }
  }
  protected void doRender(DrawContext dc, String text, int x, int y) {
    OGLStackHandler stackHandler = new OGLStackHandler();

    this.beginRendering(dc, stackHandler);
    try {
      this.draw(dc, dc.getView().getViewport(), text, x, y);
    } finally {
      this.endRendering(dc, stackHandler);
    }
  }
示例#8
0
 /**
  * Compute the view range footprint on the globe.
  *
  * @param dc the current <code>DrawContext</code>
  * @param steps the number of steps.
  * @return an array list of <code>LatLon</code> forming a closed shape.
  */
 protected ArrayList<LatLon> computeViewFootPrint(DrawContext dc, int steps) {
   ArrayList<LatLon> positions = new ArrayList<LatLon>();
   Position eyePos = dc.getView().getEyePosition();
   Angle distance =
       Angle.fromRadians(
           Math.asin(
               dc.getView().getFarClipDistance()
                   / (dc.getGlobe().getRadius() + eyePos.getElevation())));
   if (distance.degrees > 10) {
     double headStep = 360d / steps;
     Angle heading = Angle.ZERO;
     for (int i = 0; i <= steps; i++) {
       LatLon p = LatLon.greatCircleEndPosition(eyePos, heading, distance);
       positions.add(p);
       heading = heading.addDegrees(headStep);
     }
     return positions;
   } else return null;
 }
  protected static boolean isNameVisible(
      DrawContext dc, PlaceNameService service, Position namePosition) {
    double elevation = dc.getVerticalExaggeration() * namePosition.getElevation();
    Vec4 namePoint =
        dc.getGlobe()
            .computePointFromPosition(
                namePosition.getLatitude(), namePosition.getLongitude(), elevation);
    Vec4 eyeVec = dc.getView().getEyePoint();

    double dist = eyeVec.distanceTo3(namePoint);
    return dist >= service.getMinDisplayDistance() && dist <= service.getMaxDisplayDistance();
  }
示例#10
0
  /**
   * Draws the graphic as an ordered renderable.
   *
   * @param dc the current draw context.
   */
  protected void makeOrderedRenderable(DrawContext dc) {
    if (this.lines == null || this.position == null) return;

    this.computeGeometryIfNeeded(dc);

    // Don't draw if beyond the horizon.
    double horizon = dc.getView().getHorizonDistance();
    if (this.eyeDistance > horizon) return;

    if (this.intersectsFrustum(dc)) dc.addOrderedRenderable(this);

    if (dc.isPickingMode()) this.pickLayer = dc.getCurrentLayer();
  }
示例#11
0
  /**
   * Determine if this label intersects the view or pick frustum.
   *
   * @param dc Current draw context.
   * @return True if this label intersects the active frustum (view or pick). Otherwise false.
   */
  protected boolean intersectsFrustum(DrawContext dc) {
    View view = dc.getView();
    Frustum frustum = view.getFrustumInModelCoordinates();

    // Test the label's model coordinate point against the near and far clipping planes.
    if (this.placePoint != null
        && (frustum.getNear().distanceTo(this.placePoint) < 0
            || frustum.getFar().distanceTo(this.placePoint) < 0)) {
      return false;
    }

    if (dc.isPickingMode()) return dc.getPickFrustums().intersectsAny(this.screenExtent);
    else return view.getViewport().intersects(this.screenExtent);
  }
    protected boolean isNavSectorVisible(
        DrawContext dc, double minDistanceSquared, double maxDistanceSquared) {
      if (!navSector.intersects(dc.getVisibleSector())) return false;

      View view = dc.getView();
      Position eyePos = view.getEyePosition();
      if (eyePos == null) return false;

      // check for eyePos over globe
      if (Double.isNaN(eyePos.getLatitude().getDegrees())
          || Double.isNaN(eyePos.getLongitude().getDegrees())) return false;

      Angle lat =
          clampAngle(eyePos.getLatitude(), navSector.getMinLatitude(), navSector.getMaxLatitude());
      Angle lon =
          clampAngle(
              eyePos.getLongitude(), navSector.getMinLongitude(), navSector.getMaxLongitude());
      Vec4 p = dc.getGlobe().computePointFromPosition(lat, lon, 0d);
      double distSquared = dc.getView().getEyePoint().distanceToSquared3(p);
      //noinspection RedundantIfStatement
      if (minDistanceSquared > distSquared || maxDistanceSquared < distSquared) return false;

      return true;
    }
示例#13
0
  protected void addToolTip(DrawContext dc, WWIcon icon, Vec4 iconPoint) {
    if (icon.getToolTipFont() == null && icon.getToolTipText() == null) return;

    Vec4 screenPoint = dc.getView().project(iconPoint);
    if (screenPoint == null) return;

    if (icon.getToolTipOffset() != null) screenPoint = screenPoint.add3(icon.getToolTipOffset());

    OrderedText tip =
        new OrderedText(
            icon.getToolTipText(),
            icon.getToolTipFont(),
            screenPoint,
            icon.getToolTipTextColor(),
            0d);
    dc.addOrderedRenderable(tip);
  }
示例#14
0
 /**
  * Computes the lat/lon of the pickPoint over the world map
  *
  * @param dc the current <code>DrawContext</code>
  * @param locationSW the screen location of the bottom left corner of the map
  * @param mapSize the world map screen dimension in pixels
  * @return the picked Position
  */
 protected Position computePickPosition(DrawContext dc, Vec4 locationSW, Dimension mapSize) {
   Position pickPosition = null;
   Point pickPoint = dc.getPickPoint();
   if (pickPoint != null) {
     Rectangle viewport = dc.getView().getViewport();
     // Check if pickpoint is inside the map
     if (pickPoint.getX() >= locationSW.getX()
         && pickPoint.getX() < locationSW.getX() + mapSize.width
         && viewport.height - pickPoint.getY() >= locationSW.getY()
         && viewport.height - pickPoint.getY() < locationSW.getY() + mapSize.height) {
       double lon = (pickPoint.getX() - locationSW.getX()) / mapSize.width * 360 - 180;
       double lat =
           (viewport.height - pickPoint.getY() - locationSW.getY()) / mapSize.height * 180 - 90;
       double pickAltitude = 1000e3;
       pickPosition = new Position(Angle.fromDegrees(lat), Angle.fromDegrees(lon), pickAltitude);
     }
   }
   return pickPosition;
 }
  protected void beginRendering(DrawContext dc, OGLStackHandler stackHandler) {
    if (dc == null) {
      String message = Logging.getMessage("nullValue.DrawContextIsNull");
      Logging.logger().fine(message);
      throw new IllegalArgumentException(message);
    }

    GL2 gl = dc.getGL();

    int attribMask =
        GL2.GL_COLOR_BUFFER_BIT // for alpha test func and ref, blend func
            | GL2.GL_CURRENT_BIT // for current color
            | GL2.GL_ENABLE_BIT // for enable/disable
            | GL2.GL_LINE_BIT // for line width
            | GL2.GL_TRANSFORM_BIT; // for matrix mode
    stackHandler.pushAttrib(gl, attribMask);

    stackHandler.pushTextureIdentity(gl);
    stackHandler.pushProjectionIdentity(gl);
    java.awt.Rectangle viewport = dc.getView().getViewport();
    gl.glOrtho(
        viewport.x, viewport.x + viewport.width, viewport.y, viewport.y + viewport.height, -1, 1);
    stackHandler.pushModelviewIdentity(gl);

    // Enable the alpha test.
    gl.glEnable(GL2.GL_ALPHA_TEST);
    gl.glAlphaFunc(GL2.GL_GREATER, 0.0f);

    // Enable blending in premultiplied color mode.
    gl.glEnable(GL2.GL_BLEND);
    OGLUtil.applyBlending(gl, true);

    gl.glDisable(GL2.GL_CULL_FACE);
    gl.glDisable(GL2.GL_DEPTH_TEST);
    gl.glDisable(GL2.GL_LIGHTING);
    gl.glDisable(GL2.GL_TEXTURE_2D);
  }
示例#16
0
  // Rendering
  public void draw(DrawContext dc) {
    GL gl = dc.getGL();

    boolean attribsPushed = false;
    boolean modelviewPushed = false;
    boolean projectionPushed = false;

    try {
      gl.glPushAttrib(
          GL.GL_DEPTH_BUFFER_BIT
              | GL.GL_COLOR_BUFFER_BIT
              | GL.GL_ENABLE_BIT
              | GL.GL_TEXTURE_BIT
              | GL.GL_TRANSFORM_BIT
              | GL.GL_VIEWPORT_BIT
              | GL.GL_CURRENT_BIT);
      attribsPushed = true;

      gl.glDisable(GL.GL_TEXTURE_2D); // no textures

      gl.glEnable(GL.GL_BLEND);
      gl.glBlendFunc(GL.GL_SRC_ALPHA, GL.GL_ONE_MINUS_SRC_ALPHA);
      gl.glDisable(GL.GL_DEPTH_TEST);

      double width = this.size.width;
      double height = this.size.height;

      // Load a parallel projection with xy dimensions (viewportWidth, viewportHeight)
      // into the GL projection matrix.
      java.awt.Rectangle viewport = dc.getView().getViewport();
      gl.glMatrixMode(javax.media.opengl.GL.GL_PROJECTION);
      gl.glPushMatrix();
      projectionPushed = true;
      gl.glLoadIdentity();
      double maxwh = width > height ? width : height;
      gl.glOrtho(0d, viewport.width, 0d, viewport.height, -0.6 * maxwh, 0.6 * maxwh);

      gl.glMatrixMode(GL.GL_MODELVIEW);
      gl.glPushMatrix();
      modelviewPushed = true;
      gl.glLoadIdentity();

      // Scale to a width x height space
      // located at the proper position on screen
      double scale = this.computeScale(viewport);
      Vec4 locationSW = this.computeLocation(viewport, scale);
      gl.glTranslated(locationSW.x(), locationSW.y(), locationSW.z());
      gl.glScaled(scale, scale, 1);

      // Compute scale size in real world
      Position referencePosition = dc.getViewportCenterPosition();
      if (referencePosition != null) {
        Vec4 groundTarget = dc.getGlobe().computePointFromPosition(referencePosition);
        Double distance = dc.getView().getEyePoint().distanceTo3(groundTarget);
        this.pixelSize = dc.getView().computePixelSizeAtDistance(distance);
        Double scaleSize = this.pixelSize * width * scale; // meter
        String unitLabel = "m";
        if (this.unit.equals(UNIT_METRIC)) {
          if (scaleSize > 10000) {
            scaleSize /= 1000;
            unitLabel = "Km";
          }
        } else if (this.unit.equals(UNIT_IMPERIAL)) {
          scaleSize *= 3.280839895; // feet
          unitLabel = "ft";
          if (scaleSize > 5280) {
            scaleSize /= 5280;
            unitLabel = "mile(s)";
          }
        }

        // Rounded division size
        int pot = (int) Math.floor(Math.log10(scaleSize));
        if (!Double.isNaN(pot)) {
          int digit = Integer.parseInt(String.format("%.0f", scaleSize).substring(0, 1));
          double divSize = digit * Math.pow(10, pot);
          if (digit >= 5) divSize = 5 * Math.pow(10, pot);
          else if (digit >= 2) divSize = 2 * Math.pow(10, pot);
          double divWidth = width * divSize / scaleSize;

          // Draw scale
          if (!dc.isPickingMode()) {
            // Set color using current layer opacity
            Color backColor = this.getBackgroundColor(this.color);
            float[] colorRGB = backColor.getRGBColorComponents(null);
            gl.glColor4d(
                colorRGB[0],
                colorRGB[1],
                colorRGB[2],
                (double) backColor.getAlpha() / 255d * this.getOpacity());
            gl.glTranslated((width - divWidth) / 2, 0d, 0d);
            this.drawScale(dc, divWidth, height);

            colorRGB = this.color.getRGBColorComponents(null);
            gl.glColor4d(colorRGB[0], colorRGB[1], colorRGB[2], this.getOpacity());
            gl.glTranslated(-1d / scale, 1d / scale, 0d);
            this.drawScale(dc, divWidth, height);

            // Draw label
            String label = String.format("%.0f ", divSize) + unitLabel;
            gl.glLoadIdentity();
            gl.glDisable(GL.GL_CULL_FACE);
            drawLabel(
                dc,
                label,
                locationSW.add3(
                    new Vec4(divWidth * scale / 2 + (width - divWidth) / 2, height * scale, 0)));
          } else {
            // Picking
            this.pickSupport.clearPickList();
            this.pickSupport.beginPicking(dc);
            // Draw unique color across the map
            Color color = dc.getUniquePickColor();
            int colorCode = color.getRGB();
            // Add our object(s) to the pickable list
            this.pickSupport.addPickableObject(colorCode, this, referencePosition, false);
            gl.glColor3ub((byte) color.getRed(), (byte) color.getGreen(), (byte) color.getBlue());
            gl.glTranslated((width - divWidth) / 2, 0d, 0d);
            this.drawRectangle(dc, divWidth, height);
            // Done picking
            this.pickSupport.endPicking(dc);
            this.pickSupport.resolvePick(dc, dc.getPickPoint(), this);
          }
        }
      }
    } finally {
      if (projectionPushed) {
        gl.glMatrixMode(GL.GL_PROJECTION);
        gl.glPopMatrix();
      }
      if (modelviewPushed) {
        gl.glMatrixMode(GL.GL_MODELVIEW);
        gl.glPopMatrix();
      }
      if (attribsPushed) gl.glPopAttrib();
    }
  }
示例#17
0
  /**
   * Compute the label's screen position from its geographic position.
   *
   * @param dc Current draw context.
   */
  protected void computeGeometry(DrawContext dc) {
    // Project the label position onto the viewport
    Position pos = this.getPosition();
    if (pos == null) return;

    this.placePoint = dc.computeTerrainPoint(pos.getLatitude(), pos.getLongitude(), 0);
    this.screenPlacePoint = dc.getView().project(this.placePoint);

    this.eyeDistance = this.placePoint.distanceTo3(dc.getView().getEyePoint());

    boolean orientationReversed = false;
    if (this.orientationPosition != null) {
      // Project the orientation point onto the screen
      Vec4 orientationPlacePoint =
          dc.computeTerrainPoint(
              this.orientationPosition.getLatitude(), this.orientationPosition.getLongitude(), 0);
      Vec4 orientationScreenPoint = dc.getView().project(orientationPlacePoint);

      this.rotation = this.computeRotation(this.screenPlacePoint, orientationScreenPoint);

      // The orientation is reversed if the orientation point falls to the right of the screen
      // point. Text is
      // never drawn upside down, so when the orientation is reversed the text flips vertically to
      // keep the text
      // right side up.
      orientationReversed = (orientationScreenPoint.x <= this.screenPlacePoint.x);
    }

    this.computeBoundsIfNeeded(dc);

    Offset offset = this.getOffset();
    Point2D offsetPoint =
        offset.computeOffset(this.bounds.getWidth(), this.bounds.getHeight(), null, null);

    // If a rotation is applied to the text, then rotate the offset as well. An offset in the x
    // direction
    // will move the text along the orientation line, and a offset in the y direction will move the
    // text
    // perpendicular to the orientation line.
    if (this.rotation != null) {
      double dy = offsetPoint.getY();

      // If the orientation is reversed we need to adjust the vertical offset to compensate for the
      // flipped
      // text. For example, if the offset normally aligns the top of the text with the place point
      // then without
      // this adjustment the bottom of the text would align with the place point when the
      // orientation is
      // reversed.
      if (orientationReversed) {
        dy = -(dy + this.bounds.getHeight());
      }

      Vec4 pOffset = new Vec4(offsetPoint.getX(), dy);
      Matrix rot = Matrix.fromRotationZ(this.rotation.multiply(-1));

      pOffset = pOffset.transformBy3(rot);

      offsetPoint = new Point((int) pOffset.getX(), (int) pOffset.getY());
    }

    int x = (int) (this.screenPlacePoint.x + offsetPoint.getX());
    int y = (int) (this.screenPlacePoint.y - offsetPoint.getY());

    this.screenPoint = new Point(x, y);
    this.screenExtent = this.computeTextExtent(x, y, this.rotation);
  }
示例#18
0
  protected Vec4 drawIcon(DrawContext dc, OrderedIcon uIcon) {
    if (uIcon.point == null) {
      String msg = Logging.getMessage("nullValue.PointIsNull");
      Logging.logger().severe(msg);

      // Record feedback data for this WWIcon if feedback is enabled.
      if (uIcon.icon != null) this.recordFeedback(dc, uIcon.icon, null, null);

      return null;
    }

    WWIcon icon = uIcon.icon;
    if (dc.getView().getFrustumInModelCoordinates().getNear().distanceTo(uIcon.point) < 0) {
      // Record feedback data for this WWIcon if feedback is enabled.
      this.recordFeedback(dc, icon, uIcon.point, null);

      return null;
    }

    final Vec4 screenPoint = dc.getView().project(uIcon.point);
    if (screenPoint == null) {
      // Record feedback data for this WWIcon if feedback is enabled.
      this.recordFeedback(dc, icon, uIcon.point, null);

      return null;
    }

    double pedestalScale;
    double pedestalSpacing;
    if (this.pedestal != null) {
      pedestalScale = this.pedestal.getScale();
      pedestalSpacing = pedestal.getSpacingPixels();
    } else {
      pedestalScale = 0d;
      pedestalSpacing = 0d;
    }

    GL2 gl = dc.getGL().getGL2(); // GL initialization checks for GL2 compatibility.

    this.setDepthFunc(dc, uIcon, screenPoint);

    gl.glMatrixMode(GL2.GL_MODELVIEW);
    gl.glLoadIdentity();

    Dimension size = icon.getSize();
    double width = size != null ? size.getWidth() : icon.getImageTexture().getWidth(dc);
    double height = size != null ? size.getHeight() : icon.getImageTexture().getHeight(dc);
    gl.glTranslated(
        screenPoint.x - width / 2, screenPoint.y + (pedestalScale * height) + pedestalSpacing, 0d);

    if (icon.isHighlighted()) {
      double heightDelta = this.pedestal != null ? 0 : height / 2; // expand only above the pedestal
      gl.glTranslated(width / 2, heightDelta, 0);
      gl.glScaled(icon.getHighlightScale(), icon.getHighlightScale(), icon.getHighlightScale());
      gl.glTranslated(-width / 2, -heightDelta, 0);
    }

    Rectangle rect =
        new Rectangle(
            (int) (screenPoint.x - width / 2),
            (int) (screenPoint.y),
            (int) width,
            (int) (height + (pedestalScale * height) + pedestalSpacing));

    if (dc.isPickingMode()) {
      // If in picking mode and pick clipping is enabled, check to see if the icon is within the
      // pick volume.
      if (this.isPickFrustumClippingEnabled() && !dc.getPickFrustums().intersectsAny(rect)) {
        // Record feedback data for this WWIcon if feedback is enabled.
        this.recordFeedback(dc, icon, uIcon.point, rect);

        return screenPoint;
      } else {
        java.awt.Color color = dc.getUniquePickColor();
        int colorCode = color.getRGB();
        this.pickSupport.addPickableObject(colorCode, icon, uIcon.getPosition(), false);
        gl.glColor3ub((byte) color.getRed(), (byte) color.getGreen(), (byte) color.getBlue());
      }
    }

    if (icon.getBackgroundTexture() != null)
      this.applyBackground(dc, icon, screenPoint, width, height, pedestalSpacing, pedestalScale);

    if (icon.getImageTexture().bind(dc)) {
      TextureCoords texCoords = icon.getImageTexture().getTexCoords();
      gl.glScaled(width, height, 1d);
      dc.drawUnitQuad(texCoords);
    }

    if (this.pedestal != null && this.pedestal.getImageTexture() != null) {
      gl.glLoadIdentity();
      gl.glTranslated(screenPoint.x - (pedestalScale * (width / 2)), screenPoint.y, 0d);
      gl.glScaled(width * pedestalScale, height * pedestalScale, 1d);

      if (this.pedestal.getImageTexture().bind(dc)) {
        TextureCoords texCoords = this.pedestal.getImageTexture().getTexCoords();
        dc.drawUnitQuad(texCoords);
      }
    }

    // Record feedback data for this WWIcon if feedback is enabled.
    this.recordFeedback(dc, icon, uIcon.point, rect);

    return screenPoint;
  }
示例#19
0
  protected void drawMany(DrawContext dc, Iterable<? extends WWIcon> icons, Layer layer) {
    if (dc == null) {
      String msg = Logging.getMessage("nullValue.DrawContextIsNull");
      Logging.logger().severe(msg);
      throw new IllegalArgumentException(msg);
    }

    if (dc.getVisibleSector() == null) return;

    SectorGeometryList geos = dc.getSurfaceGeometry();
    //noinspection RedundantIfStatement
    if (geos == null) return;

    if (icons == null) {
      String msg = Logging.getMessage("nullValue.IconIterator");
      Logging.logger().severe(msg);
      throw new IllegalArgumentException(msg);
    }

    Iterator<? extends WWIcon> iterator = icons.iterator();

    if (!iterator.hasNext()) return;

    double horizon = dc.getView().getHorizonDistance();

    while (iterator.hasNext()) {
      WWIcon icon = iterator.next();
      if (!isIconValid(icon, true)) {
        // Record feedback data for this WWIcon if feedback is enabled.
        if (icon != null) this.recordFeedback(dc, icon, null, null);

        continue;
      }

      if (!icon.isVisible()) {
        // Record feedback data for this WWIcon if feedback is enabled.
        this.recordFeedback(dc, icon, null, null);

        continue;
      }

      // Determine Cartesian position from the surface geometry if the icon is near the surface,
      // otherwise draw it from the globe.
      Position pos = icon.getPosition();
      Vec4 iconPoint = null;
      if (pos.getElevation() < dc.getGlobe().getMaxElevation()
          && !this.isAlwaysUseAbsoluteElevation()) {
        iconPoint = dc.getSurfaceGeometry().getSurfacePoint(icon.getPosition());
      }

      if (iconPoint == null) {
        Angle lat = pos.getLatitude();
        Angle lon = pos.getLongitude();
        double elevation = pos.getElevation();
        if (!this.isAlwaysUseAbsoluteElevation()) elevation += dc.getGlobe().getElevation(lat, lon);
        iconPoint = dc.getGlobe().computePointFromPosition(lat, lon, elevation);
      }

      double eyeDistance =
          icon.isAlwaysOnTop() ? 0 : dc.getView().getEyePoint().distanceTo3(iconPoint);

      // X-PATCH Marjan
      // extracted skip conditions into an overrideable method
      if (!meetsRenderCriteria(dc, icon, iconPoint, eyeDistance)) {
        this.recordFeedback(dc, icon, iconPoint, null);
        continue;
      }
      // X-END

      // The icons aren't drawn here, but added to the ordered queue to be drawn back-to-front.
      dc.addOrderedRenderable(new OrderedIcon(icon, iconPoint, layer, eyeDistance, horizon));

      if (icon.isShowToolTip()) this.addToolTip(dc, icon, iconPoint);
    }
  }
示例#20
0
  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);
    }
  }