Smooth zoom in/out
I am using the MouseWheelZoom class to zoom in and out. This works great however the zooming is not smooth (unlike MouseZoom). I imagine the wheel zoom jumps from 10 to 20 instead of gradually going form start to end.
My question is how can I smooth out the zoom so it flows nicely?
MouseWheelZoom mwz = new MouseWheelZoom(MouseBehavior.INVERT_INPUT);
mwz.setTransformGroup(su.getViewingPlatform().getViewPlatformTransform());
mwz.setSchedulingBounds(mouseBounds);
objRoot.addChild(mwz);Thank you
To zoom in and out of images involves placing them in movieclips and gradually adjust the movieclips' x and y scale values.
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Hello, this is my first post.
I'd like to add zoom in/out function to my ScrollPane, and make shortcut (CTRL+MOUSE SCROLL UP/DOWN) for it. ( like Inkscape )
I made the following code ( Canvas ) to achieve this, but have some problems.
*1. How can I prevent ScrollBar's thumb to move when pressing CTRL?*
When ScrollBar is visible and ScrollBar's thumb (or scroller, knob) has room to move, CTRL+MOUSE SCROLL UP/DOWN doesn't work because the thumb moves instead of zooming in/out.
When the thumb moves up/down to bar's end, then zoom in/out finally works fine.
*2. ScrollEvent handler is sometimes not called in ScrollPane*
When ScrollBarPolicy is not ScrollBarPolicy.ALWAYS and Scrollbar is not visible, SOMETIMES CTRL+SCROLL UP/DOWN operation dosen't work.
(ScrollEvent handler is not called. For other panes, ScrollEvent works fine. Please check MouseScrollEventTest below)
Thank you in advance.
Canvas
public class Canvas extends Application {
DoubleProperty zoom = new SimpleDoubleProperty(1.0);
final double MAX_ZOOM = 3.0;
final double MIN_ZOOM = 0.1;
@Override
public void start(Stage stage) throws Exception {
Rectangle rectangle = RectangleBuilder.create()
.width(1000).height(1000)
.fill( LinearGradientBuilder.create()
.stops(new Stop(0, Color.BLUE), new Stop(1, Color.RED))
.build()
).build();
ScrollPane scrollPane = ScrollPaneBuilder.create()
.content(
GroupBuilder.create()
.children(rectangle)
.build())
// .hbarPolicy(ScrollBarPolicy.ALWAYS)
// .vbarPolicy(ScrollBarPolicy.ALWAYS)
.build();
rectangle.scaleXProperty().bind(zoom);
rectangle.scaleYProperty().bind(zoom);
scrollPane.setOnScroll(new EventHandler<ScrollEvent>(){
public void handle(ScrollEvent event) {
if( !event.isControlDown() ) return ;
double zoomValue;
if ( event.getDeltaY() > 0 ) {
zoomValue = zoom.get() + 0.1;
} else {
zoomValue = zoom.get() - 0.1;
if( zoomValue > MAX_ZOOM || zoomValue < MIN_ZOOM ) return ;
zoom.set(zoomValue);
Scene scene = SceneBuilder.create()
.width(500).height(500)
.root(scrollPane)
.build();
stage.setScene(scene);
stage.show();
public static void main(String[] args) {
launch(args);
Mouse Scroll Event Test
public class MouseScrollEventTest extends Application {
BorderPane bPane;
ScrollPane sPane;
public void start(Stage stage) throws Exception {
EventHandler<ScrollEvent> handler = new EventHandler<ScrollEvent>() {
public void handle(ScrollEvent event) {
System.out.println(event);
bPane = new BorderPane();
bPane.setPrefSize(100, 100);
sPane = new ScrollPane();
sPane.setPrefSize(100, 100);
// sPane.setContent( new Rectangle(50,50) );
// This works fine.
bPane.setOnScroll(handler);
// Sometimes, this is not called.
sPane.setOnScroll(handler);
HBox root = new HBox();
root.getChildren().addAll(bPane, sPane);
Scene scene = new Scene(root);
// scene.setOnScroll(handler);
stage.setScene(scene);
stage.show();
public static void main(String[] args) {
launch(args);
}--- My Environment
Windows Vista
JavaFX 2.0 SDK
Edited by: 932474 on 2012/05/07 4:31
Edited by: 932474 on 2012/05/07 4:47Thank you for the good example.
But actually, I just give up using ScrollPane and created a ZoomCanvas which can zoom in/out and pan.
The code is here.
Any comments or improvement would be appreciated.
ZoomCanvas
public class ZoomCanvas extends StackPane {
private ZoomController zoomController;
private Group contentWrapper;
private double translateXWhenMousePressed, translateYWhenMousePressed;
private double xWhenMousePressed , yWhenMousePressed;
private static class ZoomController {
private int deltaCount = 0;
private final double DEFAULT_ZOOM = 1.0;
private boolean useAnimation = true;
private DoubleProperty zoomMax = new SimpleDoubleProperty(10.0);
private DoubleProperty zoomMin = new SimpleDoubleProperty(0.1);
private DoubleProperty zoomDelta = new SimpleDoubleProperty(1.2);
private DoubleProperty zoom = new SimpleDoubleProperty( DEFAULT_ZOOM );
public ZoomController() {
public void zoomIn() {
double zoomValue = DEFAULT_ZOOM * Math.pow(zoomDelta.get(), deltaCount+1);
if( zoomValue > zoomMax.get() ) {
setZoom(zoomMax.get());
return;
deltaCount++;
setZoom( zoomValue );
public void zoomOut() {
double zoomValue = DEFAULT_ZOOM * Math.pow(zoomDelta.get(), deltaCount-1);
if( zoomValue < zoomMin.get() ) {
setZoom(zoomMin.get());
return;
deltaCount--;
setZoom( zoomValue );
public void setZoom( double zoomValue ) {
if( useAnimation ) {
Timeline zoomTimeline = new Timeline();
zoomTimeline.getKeyFrames().add(
new KeyFrame(Duration.millis(300), new KeyValue(zoom, zoomValue))
zoomTimeline.play();
} else {
zoom.set(zoomValue);
public ZoomCanvas(Node content) {
super();
Rectangle clip = new Rectangle();
clip.widthProperty().bind(widthProperty());
clip.heightProperty().bind(heightProperty());
// to adjust layoutBounds when drawingPane's scale changes
contentWrapper = new Group(content);
StackPane.setAlignment(contentWrapper, Pos.CENTER);
getChildren().add(contentWrapper);
zoomController = new ZoomController();
content.scaleXProperty().bind(zoomController.zoom);
content.scaleYProperty().bind(zoomController.zoom);
content.translateXProperty();
hookEvents();
setClip(clip);
private void hookEvents() {
setOnScroll(new EventHandler<ScrollEvent>() {
public void handle(ScrollEvent event) {
if( event.getDeltaY() > 0 ) {
zoomController.zoomIn();
} else {
zoomController.zoomOut();
setOnMousePressed(new EventHandler<MouseEvent>(){
public void handle(MouseEvent event) {
if( !event.isMiddleButtonDown() ) return ;
translateXWhenMousePressed = contentWrapper.getTranslateX();
translateYWhenMousePressed = contentWrapper.getTranslateY();
xWhenMousePressed = event.getX();
yWhenMousePressed = event.getY();
setCursor(Cursor.MOVE);
event.consume();
setOnMouseReleased(new EventHandler<MouseEvent>(){
public void handle(MouseEvent event) {
setCursor(Cursor.DEFAULT);
setOnMouseDragged(new EventHandler<MouseEvent>(){
public void handle(MouseEvent event) {
if(!event.isMiddleButtonDown())
return;
contentWrapper.setTranslateX( translateXWhenMousePressed + event.getX() - xWhenMousePressed );
contentWrapper.setTranslateY( translateYWhenMousePressed + event.getY() - yWhenMousePressed );
event.consume();
ZoomCanvasTest
public class ZoomCanvasTest extends Application {
public void start(Stage primaryStage) throws Exception {
Rectangle rect = new Rectangle(0,0,100,100);
rect.setStyle("-fx-fill: blue;");
Circle circle = new Circle(100,100,50);
circle.setStyle("-fx-fill: red;");
Pane canvasContent = new Pane();
canvasContent.setStyle(
"-fx-background-color: papayawhip;" +
"-fx-border-color: black;");
canvasContent.getChildren().add(circle);
canvasContent.getChildren().add(rect);
ZoomCanvas canvas = new ZoomCanvas(canvasContent);
canvas.setStyle(
"-fx-background-color: mistyrose;" +
"-fx-border-color: black;"
ToolBar toolBar = new ToolBar();
toolBar.setOrientation(Orientation.VERTICAL);
toolBar.getItems().add( new Button("sample") );
BorderPane root = new BorderPane();
root.setCenter(canvas);
root.setRight(toolBar);
// root.getChildren().addAll(canvas, toolBar);
Scene scene = new Scene(root);
primaryStage.setScene(scene);
primaryStage.show();
public static void main(String[] args) {
launch(args);
}Edited by: 932474 on 2012/05/08 10:17
Edited by: 932474 on 2012/05/08 10:40
Edited by: 932474 on 2012/05/08 10:56 -
Hello,
Recently my browsers (safari,chrome) behave oddly, it auto zoom in/out, sometimes really fast like it shaking or something, so far it only happens when i'm using Wacom tablet, I don't know exactly when this started, I guess when I upgraded to 10.6.6, i've asked Wacom Support they suggested to re-install driver, but still problem persist. Maybe anyone here knows what's going on?Must be a setting on the tablet. You need to speak to Wacom.
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After zoom in/out to open callout is wrong position
Dear All
After zoom in/out screen , i open callout.
I'm having problems with its position
code:
<fx:Declarations>
<s:Callout id="bCallout"
mouseDownOutside="bCallout.close()"
mouseUp="bCallout.close()"
backgroundColor="0x999999"
contentBackgroundAlpha="0"/>
</fx:Declarations>
<fx:Script>
private function zoom_action(act:String):void {
var z:Number;
if(act=='+'){
z=0.25;
}else{
z=-0.25;
var my_matrix:Matrix = new Matrix();
my_matrix.scale(gr1.scaleX+z, gr1.scaleX+z);
gr1.transform.matrix=my_matrix;
</fx:Script>
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<s:Button id="btn1" x="24" y="50" label="btnA" click="bCallout.open(btn1)"/>
<s:Button id="btn2" x="100" y="100" label="btnB" click="bCallout.open(btn2)"/>
<s:Button id="btn3" x="170" y="150" label="btnC" click="bCallout.open(btn3)"/>
</s:Group>
<s:Button id="zoomin" y="10" right="108" width="44" height="42" label="+" alpha="0.5"
click="zoom_action('+')"/>
<s:Button id="zoomout" y="10" right="59" width="44" height="42" label="-" alpha="0.5"
click="zoom_action('-')"/>
Any ideas what I'm doing wrong?You need a Mac user to come along and give you better advice, but meanwhile, Goggle
photoshop cc lag yosemite
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How to smooth these pixels out...?
How can I smooth the pixels out on the bottom rounded parts of this image?
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Here's a video tutorial that show you how to smooth jagged images in under a minute.
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i am having troulbe zooming in/out in video mode. i have to manually zoom in/out in photo mode, then go back to video mode to stay at those current settings, and shoot the video from there... how can i change my zoom lense in video mode?
sniper8752 wrote:
well thats dumb!
The camera is not the video recorder, two separate applications, they don't interact.
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using magic mouse , i have accidently zoomed in and i cannot find how to zoom back out without actually having to close the program. i am a newbie - obviously.
regards
PCheck your settings in: System Preferences > Mouse
Deselect: Smart Zoom
And check settings in System Preferences > Accessibility > Zoom
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