protected Angle computePanAmount(
Globe globe, OrbitView view, ScreenAnnotation control, double panStep) {
// Compute last pick point distance relative to pan control center
double size = control.getAttributes().getSize().width * control.getAttributes().getScale();
Vec4 center = new Vec4(control.getScreenPoint().x, control.getScreenPoint().y + size / 2, 0);
double px = lastPickPoint.x - center.x;
double py = view.getViewport().getHeight() - lastPickPoint.y - center.y;
double pickDistance = Math.sqrt(px * px + py * py);
double pickDistanceFactor = Math.min(pickDistance / 10, 5);
// Compute globe angular distance depending on eye altitude
Position eyePos = view.getEyePosition();
double radius = globe.getRadiusAt(eyePos);
double minValue = 0.5 * (180.0 / (Math.PI * radius)); // Minimum change ~0.5 meters
double maxValue = 1.0; // Maximum change ~1 degree
// Compute an interpolated value between minValue and maxValue, using (eye altitude)/(globe
// radius) as
// the interpolant. Interpolation is performed on an exponential curve, to keep the value from
// increasing too quickly as eye altitude increases.
double a = eyePos.getElevation() / radius;
a = (a < 0 ? 0 : (a > 1 ? 1 : a));
double expBase = 2.0; // Exponential curve parameter.
double value =
minValue + (maxValue - minValue) * ((Math.pow(expBase, a) - 1.0) / (expBase - 1.0));
return Angle.fromDegrees(value * pickDistanceFactor * panStep);
}
protected Angle computePanHeading(OrbitView view, ScreenAnnotation control) {
// Compute last pick point 'heading' relative to pan control center
double size = control.getAttributes().getSize().width * control.getAttributes().getScale();
Vec4 center = new Vec4(control.getScreenPoint().x, control.getScreenPoint().y + size / 2, 0);
double px = lastPickPoint.x - center.x;
double py = view.getViewport().getHeight() - lastPickPoint.y - center.y;
Angle heading = view.getHeading().add(Angle.fromRadians(Math.atan2(px, py)));
heading = heading.degrees >= 0 ? heading : heading.addDegrees(360);
return heading;
}
protected Angle computeLookPitch(OrbitView view, ScreenAnnotation control, double pitchStep) {
// Compute last pick point 'pitch' relative to look control center on y
double size = control.getAttributes().getSize().width * control.getAttributes().getScale();
Vec4 center = new Vec4(control.getScreenPoint().x, control.getScreenPoint().y + size / 2, 0);
double py = view.getViewport().getHeight() - lastPickPoint.y - center.y;
double pickDistanceFactor = Math.min(Math.abs(py) / 3000, 5) * Math.signum(py);
// New pitch
Angle pitch = view.getPitch().add(Angle.fromRadians(pitchStep * pickDistanceFactor));
pitch = pitch.degrees >= 0 ? (pitch.degrees <= 90 ? pitch : Angle.fromDegrees(90)) : Angle.ZERO;
return pitch;
}
protected Angle computeLookHeading(OrbitView view, ScreenAnnotation control, double headingStep) {
// Compute last pick point 'heading' relative to look control center on x
double size = control.getAttributes().getSize().width * control.getAttributes().getScale();
Vec4 center = new Vec4(control.getScreenPoint().x, control.getScreenPoint().y + size / 2, 0);
double px = lastPickPoint.x - center.x;
double pickDistanceFactor = Math.min(Math.abs(px) / 3000, 5) * Math.signum(px);
// New heading
Angle heading = view.getHeading().add(Angle.fromRadians(headingStep * pickDistanceFactor));
heading = heading.degrees >= 0 ? heading : heading.addDegrees(360);
return heading;
}
protected void transformBackgroundImageCoordsToAnnotationCoords(
DrawContext dc, int width, int height, WWTexture texture) {
GL2 gl = dc.getGL().getGL2(); // GL initialization checks for GL2 compatibility.
// Scale background image coordinates to fit the Annotation's dimensions.
java.awt.Dimension size = this.getImageSize(dc);
if (size != null) {
gl.glScaled(size.getWidth() / (double) width, size.getHeight() / (double) height, 1d);
}
super.transformBackgroundImageCoordsToAnnotationCoords(dc, width, height, texture);
}
protected void applyBackgroundTextureState(
DrawContext dc, int width, int height, double opacity, WWTexture texture) {
super.applyBackgroundTextureState(dc, width, height, opacity, texture);
// Setup the texture filters to correspond to the smoothing and mipmap settings.
int minFilter =
this.isEnableSmoothing()
? (this.isUseMipmaps() ? GL.GL_LINEAR_MIPMAP_LINEAR : GL.GL_LINEAR)
: GL.GL_NEAREST;
int magFilter = this.isEnableSmoothing() ? GL.GL_LINEAR : GL.GL_NEAREST;
GL gl = dc.getGL();
gl.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MIN_FILTER, minFilter);
gl.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAG_FILTER, magFilter);
}
public void drawContent(
DrawContext dc, int width, int height, double opacity, Position pickPosition) {
super.drawContent(dc, width, height, opacity, pickPosition);
this.drawToolTip(dc);
}
// Set controls positions according to layout and viewport dimension
protected void updatePositions(DrawContext dc) {
boolean horizontalLayout = this.layout.equals(AVKey.HORIZONTAL);
// horizontal layout: pan button + look button beside 2 rows of 4 buttons
int width =
(showPanControls ? panSize : 0)
+ (showLookControls ? panSize : 0)
+ (showZoomControls ? buttonSize : 0)
+ (showHeadingControls ? buttonSize : 0)
+ (showPitchControls ? buttonSize : 0)
+ (showFovControls ? buttonSize : 0)
+ (showVeControls ? buttonSize : 0);
int height = Math.max(panSize, buttonSize * 2);
width = (int) (width * scale);
height = (int) (height * scale);
int xOffset = 0;
int yOffset = (int) (buttonSize * scale);
if (!horizontalLayout) {
// vertical layout: pan button above look button above 4 rows of 2 buttons
int temp = height;
//noinspection SuspiciousNameCombination
height = width;
width = temp;
xOffset = (int) (buttonSize * scale);
yOffset = 0;
}
int halfPanSize = (int) (panSize * scale / 2);
int halfButtonSize = (int) (buttonSize * scale / 2);
Rectangle controlsRectangle = new Rectangle(width, height);
Point locationSW = computeLocation(dc.getView().getViewport(), controlsRectangle);
// Layout start point
int x = locationSW.x;
int y = horizontalLayout ? locationSW.y : locationSW.y + height;
if (this.showPanControls) {
if (!horizontalLayout) y -= (int) (panSize * scale);
controlPan.setScreenPoint(new Point(x + halfPanSize, y));
if (horizontalLayout) x += (int) (panSize * scale);
}
if (this.showLookControls) {
if (!horizontalLayout) y -= (int) (panSize * scale);
controlLook.setScreenPoint(new Point(x + halfPanSize, y));
if (horizontalLayout) x += (int) (panSize * scale);
}
if (this.showZoomControls) {
if (!horizontalLayout) y -= (int) (buttonSize * scale);
controlZoomIn.setScreenPoint(new Point(x + halfButtonSize + xOffset, y + yOffset));
controlZoomOut.setScreenPoint(new Point(x + halfButtonSize, y));
if (horizontalLayout) x += (int) (buttonSize * scale);
}
if (this.showHeadingControls) {
if (!horizontalLayout) y -= (int) (buttonSize * scale);
controlHeadingLeft.setScreenPoint(new Point(x + halfButtonSize + xOffset, y + yOffset));
controlHeadingRight.setScreenPoint(new Point(x + halfButtonSize, y));
if (horizontalLayout) x += (int) (buttonSize * scale);
}
if (this.showPitchControls) {
if (!horizontalLayout) y -= (int) (buttonSize * scale);
controlPitchUp.setScreenPoint(new Point(x + halfButtonSize + xOffset, y + yOffset));
controlPitchDown.setScreenPoint(new Point(x + halfButtonSize, y));
if (horizontalLayout) x += (int) (buttonSize * scale);
}
if (this.showFovControls) {
if (!horizontalLayout) y -= (int) (buttonSize * scale);
controlFovNarrow.setScreenPoint(new Point(x + halfButtonSize + xOffset, y + yOffset));
controlFovWide.setScreenPoint(new Point(x + halfButtonSize, y));
if (horizontalLayout) x += (int) (buttonSize * scale);
}
if (this.showVeControls) {
if (!horizontalLayout) y -= (int) (buttonSize * scale);
controlVeUp.setScreenPoint(new Point(x + halfButtonSize + xOffset, y + yOffset));
controlVeDown.setScreenPoint(new Point(x + halfButtonSize, y));
if (horizontalLayout) x += (int) (buttonSize * scale);
}
if (this.showTrash) {
if (!horizontalLayout) y -= (int) (buttonSize * scale);
this.trashControl.setScreenPoint(new Point(x + halfButtonSize + 5, y));
}
// if (this.showMenu) {
// if (!horizontalLayout)
// y -= (int) (buttonSize * scale);
// this.menuControl.setScreenPoint(new Point(x + halfButtonSize + 15 +
// this.myButtonWidth, y));
// }
this.referenceViewport = dc.getView().getViewport();
}
protected void initialize(DrawContext dc) {
if (this.initialized) return;
// Setup user interface - common default attributes
AnnotationAttributes ca = new AnnotationAttributes();
ca.setAdjustWidthToText(AVKey.SIZE_FIXED);
ca.setInsets(new Insets(0, 0, 0, 0));
ca.setBorderWidth(0);
ca.setCornerRadius(0);
ca.setSize(new Dimension(buttonSize, buttonSize));
ca.setBackgroundColor(new Color(0, 0, 0, 0));
ca.setImageOpacity(.5);
ca.setScale(scale);
final String NOTEXT = "";
final Point ORIGIN = new Point(0, 0);
if (this.showPanControls) {
// Pan
controlPan = new ScreenAnnotation(NOTEXT, ORIGIN, ca);
controlPan.setValue(AVKey.VIEW_OPERATION, AVKey.VIEW_PAN);
controlPan.getAttributes().setImageSource(getImageSource(AVKey.VIEW_PAN));
controlPan.getAttributes().setSize(new Dimension(panSize, panSize));
this.addRenderable(controlPan);
}
if (this.showLookControls) {
// Look
controlLook = new ScreenAnnotation(NOTEXT, ORIGIN, ca);
controlLook.setValue(AVKey.VIEW_OPERATION, AVKey.VIEW_LOOK);
controlLook.getAttributes().setImageSource(getImageSource(AVKey.VIEW_LOOK));
controlLook.getAttributes().setSize(new Dimension(panSize, panSize));
this.addRenderable(controlLook);
}
if (this.showZoomControls) {
// Zoom
controlZoomIn = new ScreenAnnotation(NOTEXT, ORIGIN, ca);
controlZoomIn.setValue(AVKey.VIEW_OPERATION, AVKey.VIEW_ZOOM_IN);
controlZoomIn.getAttributes().setImageSource(getImageSource(AVKey.VIEW_ZOOM_IN));
this.addRenderable(controlZoomIn);
controlZoomOut = new ScreenAnnotation(NOTEXT, ORIGIN, ca);
controlZoomOut.setValue(AVKey.VIEW_OPERATION, AVKey.VIEW_ZOOM_OUT);
controlZoomOut.getAttributes().setImageSource(getImageSource(AVKey.VIEW_ZOOM_OUT));
this.addRenderable(controlZoomOut);
}
if (this.showHeadingControls) {
// Heading
controlHeadingLeft = new ScreenAnnotation(NOTEXT, ORIGIN, ca);
controlHeadingLeft.setValue(AVKey.VIEW_OPERATION, AVKey.VIEW_HEADING_LEFT);
controlHeadingLeft.getAttributes().setImageSource(getImageSource(AVKey.VIEW_HEADING_LEFT));
this.addRenderable(controlHeadingLeft);
controlHeadingRight = new ScreenAnnotation(NOTEXT, ORIGIN, ca);
controlHeadingRight.setValue(AVKey.VIEW_OPERATION, AVKey.VIEW_HEADING_RIGHT);
controlHeadingRight.getAttributes().setImageSource(getImageSource(AVKey.VIEW_HEADING_RIGHT));
this.addRenderable(controlHeadingRight);
}
if (this.showPitchControls) {
// Pitch
controlPitchUp = new ScreenAnnotation(NOTEXT, ORIGIN, ca);
controlPitchUp.setValue(AVKey.VIEW_OPERATION, AVKey.VIEW_PITCH_UP);
controlPitchUp.getAttributes().setImageSource(getImageSource(AVKey.VIEW_PITCH_UP));
this.addRenderable(controlPitchUp);
controlPitchDown = new ScreenAnnotation(NOTEXT, ORIGIN, ca);
controlPitchDown.setValue(AVKey.VIEW_OPERATION, AVKey.VIEW_PITCH_DOWN);
controlPitchDown.getAttributes().setImageSource(getImageSource(AVKey.VIEW_PITCH_DOWN));
this.addRenderable(controlPitchDown);
}
if (this.showFovControls) {
// Field of view FOV
controlFovNarrow = new ScreenAnnotation(NOTEXT, ORIGIN, ca);
controlFovNarrow.setValue(AVKey.VIEW_OPERATION, AVKey.VIEW_FOV_NARROW);
controlFovNarrow.getAttributes().setImageSource(getImageSource(AVKey.VIEW_FOV_NARROW));
this.addRenderable(controlFovNarrow);
controlFovWide = new ScreenAnnotation(NOTEXT, ORIGIN, ca);
controlFovWide.setValue(AVKey.VIEW_OPERATION, AVKey.VIEW_FOV_WIDE);
controlFovWide.getAttributes().setImageSource(getImageSource(AVKey.VIEW_FOV_WIDE));
this.addRenderable(controlFovWide);
}
if (this.showVeControls) {
// Vertical Exaggeration
controlVeUp = new ScreenAnnotation(NOTEXT, ORIGIN, ca);
controlVeUp.setValue(AVKey.VIEW_OPERATION, AVKey.VERTICAL_EXAGGERATION_UP);
controlVeUp.getAttributes().setImageSource(getImageSource(AVKey.VERTICAL_EXAGGERATION_UP));
this.addRenderable(controlVeUp);
controlVeDown = new ScreenAnnotation(NOTEXT, ORIGIN, ca);
controlVeDown.setValue(AVKey.VIEW_OPERATION, AVKey.VERTICAL_EXAGGERATION_DOWN);
controlVeDown
.getAttributes()
.setImageSource(getImageSource(AVKey.VERTICAL_EXAGGERATION_DOWN));
this.addRenderable(controlVeDown);
}
if (this.showTrash) {
trashControl = new ScreenAnnotation(NOTEXT, ORIGIN, ca);
trashControl.getAttributes().setImageSource(IMAGE_SETTINGS);
trashControl.getAttributes().setSize(new Dimension(myButtonWidth, myButtonHeight));
trashControl.setValue(AVKey.VIEW_OPERATION, "trash it");
this.addRenderable(trashControl);
}
// if (this.showMenu) {
// menuControl = new ScreenAnnotation(NOTEXT, ORIGIN, ca);
// menuControl.getAttributes().setImageSource(IMAGE_SIMPLE_GUI);
// menuControl.getAttributes().setSize(new Dimension(50, 50));
// menuControl.setValue(AVKey.VIEW_OPERATION, "auxiliary");
// this.addRenderable(menuControl);
// }
// Place controls according to layout and viewport dimension
updatePositions(dc);
this.initialized = true;
}
/**
* Get the control type associated with the given object or null if unknown.
*
* @param control the control object
* @return the control type. Can be one of {@link AVKey#VIEW_PAN}, {@link AVKey#VIEW_LOOK}, {@link
* AVKey#VIEW_HEADING_LEFT}, {@link AVKey#VIEW_HEADING_RIGHT}, {@link AVKey#VIEW_ZOOM_IN},
* {@link AVKey#VIEW_ZOOM_OUT}, {@link AVKey#VIEW_PITCH_UP}, {@link AVKey#VIEW_PITCH_DOWN},
* {@link AVKey#VIEW_FOV_NARROW} or {@link AVKey#VIEW_FOV_WIDE}.
* <p>Returns null if the object is not a view control associated with this layer.
*/
public String getControlType(Object control) {
if (control == null || !(control instanceof ScreenAnnotation)) return null;
if (showPanControls && controlPan.equals(control)) return AVKey.VIEW_PAN;
else if (showLookControls && controlLook.equals(control)) return AVKey.VIEW_LOOK;
else if (showHeadingControls && controlHeadingLeft.equals(control))
return AVKey.VIEW_HEADING_LEFT;
else if (showHeadingControls && controlHeadingRight.equals(control))
return AVKey.VIEW_HEADING_RIGHT;
else if (showZoomControls && controlZoomIn.equals(control)) return AVKey.VIEW_ZOOM_IN;
else if (showZoomControls && controlZoomOut.equals(control)) return AVKey.VIEW_ZOOM_OUT;
else if (showPitchControls && controlPitchUp.equals(control)) return AVKey.VIEW_PITCH_UP;
else if (showPitchControls && controlPitchDown.equals(control)) return AVKey.VIEW_PITCH_DOWN;
else if (showFovControls && controlFovNarrow.equals(control)) return AVKey.VIEW_FOV_NARROW;
else if (showFovControls && controlFovWide.equals(control)) return AVKey.VIEW_FOV_WIDE;
else if (showVeControls && controlVeUp.equals(control)) return AVKey.VERTICAL_EXAGGERATION_UP;
else if (showVeControls && controlVeDown.equals(control))
return AVKey.VERTICAL_EXAGGERATION_DOWN;
return null;
}