When toggling the visibility of 3D KmlPolygons or modifying style properties the globe doesn't update directly afterwards. Rather, you need to trigger an update by moving your mouse around. There's an internal redraw function that's only called at certain times, but I don't know how to invoke it.
To get the map to update I've made this function:
redraw : function (ge) {
ge = setDefault(ge, this.ge);
if (typeof obj == 'undefined' && ge) {
Log.info('Earth redraw');
ge.getWindow().setVisibility(false);
ge.getWindow().setVisibility(true);
} else {
Log.error('Earth redraw failed');
}
}
It toggles the window visibility and forces an update, but this causes a flash on some computers and isn't too elegant. Is there an alternative?
Try to copy the camera and set it again. I don't know if this will work, but if it works it should not make any flash
var lookAt = ge.getView().copyAsLookAt(ge.ALTITUDE_RELATIVE_TO_GROUND);
ge.getView().setAbstractView(lookAt);
Related
(I know it will be unstable but I still want to try it)
I want to move around in aframe scene using accelerometer
AFRAME.registerComponent('acccam',{
window.addEventListener('devicemotion', function(){
var acc = event.acceleration;
this.el.object3D.position.x += acc.x*9.8;
this.el.object3D.position.y += acc.y*9.8;
this.el.object3D.position.z += acc.z*9.8;
}, true);
})
I expect the camera to move or at least shake/something but nothing is happening could getelement by id, get attribute and set attribute be used to update the position by taking temporary values and then cloning them if yes then how?
Make sure the event is firing, and make sure you don't have like look-controls also enabled on the same entity or it will be overridden.
You can need to make sure this is the correct pointer. When you wrap in function (), this becomes window. You can use (evt) => { instead of function (evt) {
I am currently working on a strategy game and I want to preform actions using GUI.Button on game objects. I am using ray cast and mouse click to select the object however when I click on GUI.Button to take out another action the button disappears. I want to use that button to open up another GUI.Box to show some descriptions.
I know why the button is disappearing, it is because I am projecting the ray cast to my button clicks in the update function but how can I avoid this? I also know that I have to use EventTrigger however I am not familiar with javascript event trigger, I searched online but I couldn't find any helpful javascript.
Screenshots:
Here is my script:
#HideInInspector
var isCalled:int = 0;
#HideInInspector
var scWidth:int = 0;
#HideInInspector
var scHeight:int = 0;
function Start () {
scWidth = Screen.width;
scHeight = Screen.height;
}
function Update () {
if (Input.GetMouseButtonDown(0)) {
var ray : Ray = Camera.main.ScreenPointToRay (Input.mousePosition);
var hit : RaycastHit;
if (Physics.Raycast (ray, hit)) {
if (hit.collider.tag == "House") {
isCalled = 1;
} else{
isCalled = 0;
}
}
}
}
function OnGUI(){
if(isCalled==1)
GUI.Button(Rect(scWidth/2,(scHeight/2)+(scHeight/4),120,120), name);
}
}
If I understood you right, the problem is that when you click on button the raycast is fired up before button click and you select different object or no object at all and button disappears or reappears but for another object, what you need to do is check if you clicked on GUI and if yes don't project the raycast that selects the objects. Here is how you are gonna do it.
var selectedUI : GameObject = EventSystem.current.currentSelectedGameObject;
if (Input.GetMouseButtonDown(0) && selectedUI) {
var ray : Ray = Camera.main.ScreenPointToRay (Input.mousePosition);
var hit : RaycastHit;
if (Physics.Raycast (ray, hit)) {
if (hit.collider.tag == "House") {
isCalled = 1;
} else{
isCalled = 0;
}
}
}
I work in C#, so I might have done some syntax errors, but the logic is right.
There is a good trick when using legacy GUI system to avoid raycast when mouse is over GUI elements. Using tooltip to controll if you may cast your ray =)
Something like this (I also don't work with US so may I it needs some work):
var hover : String;
function OnGUI(){
if(GUI.Button (Rect (10,10,100,20), "My Button"));
hover = GUI.tooltip;
function Update () {
if(hover != "") {
// raycast logic
}
}
If you need to avoid raycast when your "popUp" window/panel is shown but you don't want a tooltip on it you may approach using a MouseOverGUI manager too.
It is just a static or singleton holding a boolean that you will set true when your mouse is over some rect that you don't want to cast rays using Rect.Contains(Event.current.mousePosition) and to false whenever it runs out of this rect.
Use this bool with or without tooltip var to allow raycast:
if(!MouseManager.MouseOverGUI) {
// raycast logic
}
Note that creating your rect on each OnGUI cycle will difficult to catch it and control the MouseOveGUI. Also it is a bad practice for performance because OnGUI runs more than once per frame so I'll suggest you to create you rects just once (recalculate it just when needed) and pass it to your GUI elements ;)
I think the easiest way is to create a GameObject(input blocker) which is not visible but have a collider. Place it in between the camera and level objects and deactivate it. When you select a GameObject using Raycast you enable that input blocker GameObject and place it around the area of selected GameObject and GUI. Then you have to ignore the selection if raycast is collided with Input Blocker. When you deselect the Gameobject then you deactivate input blocker
You should also maintain current state of the game for example:
enum State
{
NothingSelected = 0,
GameobjectSelected,
BigMenuOpen
}
State currentState;
So according to state you can define the behavior on mouse click. Like if Full screen menu is Open then raycast does not fire.
I am working on an application which has quite a bit of field-validation in it. The validation works great and I am 1000000% sure the validation message popups were appearing earlier. Now I did quite a bit of work and refactoring. One of the things I changed was the way I open up Popups/Dialog. In order to have these centered over the entire application instead of the opening component I refactored the way I open dialogs. I used the source of the Alert as a base for this but extended it quite a bit as I was having other issues (Focus Manager etc.) (I am just mentioning this as I am assuming that my missing popups are related to this).
Here comes the code responsible for opening popups in my application:
public function show(realParent:Sprite,
displayParent:Sprite = null,
closeHandler:Function = null,
moduleFactory:IFlexModuleFactory = null):Dialog {
// Get the parent ...
// If none is set, use the top-level-application.
if (!displayParent) {
var sm:ISystemManager = ISystemManager(FlexGlobals.topLevelApplication.systemManager);
// no types so no dependencies
var mp:Object = sm.getImplementation("mx.managers.IMarshallPlanSystemManager");
if (mp && mp.useSWFBridge())
displayParent = Sprite(sm.getSandboxRoot());
else
displayParent = Sprite(FlexGlobals.topLevelApplication);
}
// Register for close-events, making sure the pop-up is closed.
if (closeHandler != null) {
this.addEventListener(CloseEvent.CLOSE, closeHandler);
}
// Setting a module factory allows the correct embedded font to be found.
if (moduleFactory) {
this.moduleFactory = moduleFactory;
} else if (realParent is IFlexModule) {
this.moduleFactory = IFlexModule(realParent).moduleFactory;
} else {
if (realParent is IFlexModuleFactory) {
this.moduleFactory = IFlexModuleFactory(realParent);
} else {
this.moduleFactory = FlexGlobals.topLevelApplication.moduleFactory;
}
// also set document if parent isn't a UIComponent
if (!parent is UIComponent) {
this.document = FlexGlobals.topLevelApplication.document;
}
}
// Make the dialog center itself relative to the parent.
PopUpManager.addPopUp(this, displayParent, true);
PopUpManager.centerPopUp(this);
return this;
}
What could be responsible for the Validation popups not showing up any more? Where should I look?
Chris
Ok ... so I figgured this out by myself again. I coould bang my head at the wall for taking so long for finding it though.
If I use the Spart forms, the FormItems and Forms themselves can define error text areas in order to output error messages. So as soon as the FormItem posesses a skin part with the id "errorTextDisplay" the error messages go there. I was now expecting that if there was no such part, the old notifications would be used ... nope.
After about 2-3 Hours of messing around with the code of FormItem and it's skins, I noticed that the "contentGroup" explicitly defined an attribute to suppress error tooltyips by setting showErrorTip to false. Simply removing the "errorTextDisplay" from the skin and changing the showErrorTip to true made my popups appear nicely :-)
Hopefully this post might help someone with the same problems.
I have a simple list and a background refresh protocol.
When the list is scrolled down, the refresh scrolls it back to the top. I want to stop this.
I have tried catching the COLLECTION_CHANGE event and
validateNow(); // try to get the component to reset to the new data
list.ensureIndexIsVisible(previousIndex); // actually, I search for the previous data id in the IList, but that's not important
This fails because the list resets itself after the change (in DataGroup.commitProperties).
I hate to use a Timer, ENTER_FRAME, or callLater(), but I cannot seem to figure out a way.
The only other alternatives I can see is sub-classing the List so it can catch the dataProviderChanged event the DataGroup in the skin is throwing.
Any ideas?
Actually MUCH better solution to this is to extend DataGroup. You need to override this.
All the solutions here create a flicker as the scrollbar gets resetted to 0 and the it's set back to the previous value. That looks wrong. This solution works without any flicker and the best of all, you just change DataGroup to FixedDataGroup in your code and it works, no other changes in code are needed ;).
Enjoy guys.
public class FixedDataGroup extends spark.components.DataGroup
{
private var _dataProviderChanged:Boolean;
private var _lastScrollPosition:Number = 0;
public function FixedDataGroup()
{
super();
}
override public function set dataProvider(value:IList):void
{
if ( this.dataProvider != null && value != this.dataProvider )
{
dataProvider.removeEventListener(CollectionEvent.COLLECTION_CHANGE, onDataProviderChanged);
}
super.dataProvider = value;
if ( value != null )
{
value.addEventListener(CollectionEvent.COLLECTION_CHANGE, onDataProviderChanged);
}
}
override protected function commitProperties():void
{
var lastScrollPosition:Number = _lastScrollPosition;
super.commitProperties();
if ( _dataProviderChanged )
{
verticalScrollPosition = lastScrollPosition;
}
}
private function onDataProviderChanged(e:CollectionEvent):void
{
_dataProviderChanged = true;
invalidateProperties();
}
override public function set verticalScrollPosition(value:Number):void
{
super.verticalScrollPosition = value;
_lastScrollPosition = value;
}
}
I ll try to explain my approach...If you are still unsure let me know and I ll give you the source code as well.
1) Create a variable to store the current scroll position of the viewport.
2) Add Event listener for Event.CHANGE and MouseEvent.MOUSE_WHEEL on the scroller and update the variable created in step 1 with the current scroll position;
3) Add a event listener on your viewport for FlexEvent.UpdateComplete and set the scroll position to the variable stored.
In a nutshell, what we are doing is to have the scroll position stored in variable every time user interacts with it and when our viewport is updated (due to dataprovider change) we just set the scroll position we have stored previously in the variable.
I have faced this problem before and solved it by using a data proxy pattern with a matcher. Write a matcher for your collection that supports your list by updating only changed objects and by updating only attributes for existing objects. The goal is to avoid creation of new objects when your data source refreshes.
When you have new data for the list (after a refresh), loop through your list of new data objects, copying attributes from these objects into the objects in the collection supporting your list. Typically you will match the objects based on id. Any objects in the new list that did not exist in the old one get added. Your scroll position will normally not change and any selections are usually kept.
Here is an example.
for each(newObject:Object in newArrayValues){
var found:Boolean = false;
for each(oldObject:Object in oldArrayValues){
if(oldObject.id == newObject.id){
found = true;
oldObject.myAttribute = newObject.myAttribute;
oldObject.myAttribute2 = newObject.myAttribute2;
}
}
if(!found){
oldArrayValues.addItem(newObject);
}
}
My solution for this problem was targeting a specific situation, but it has the advantage of being very simple so perhaps you can draw something that fits your needs from it. Since I don't know exactly what issue you're trying to solve I'll give you a description of mine:
I had a List that was progressively loading data from the server. When the user scrolled down and the next batch of items would be added to the dataprovider, the scrollposition would jump back to the start.
The solution for this was as simple as stopping the propagation of the COLLECTION_CHANGE event so that the List wouldn't catch it.
myDataProvider.addEventListener(
CollectionEvent.COLLECTION_CHANGE, preventRefresh
);
private function preventRefresh(event:CollectionEvent):void {
event.stopImmediatePropagation();
}
You have to know that this effectively prevents a redraw of the List component, hence any added items would not be shown. This was not an issue for me since the items would be added at the end of the List (outside the viewport) and when the user would scroll, the List would automatically be redrawn and the new items would be displayed. Perhaps in your situation you can force the redraw if need be.
When all items had been loaded I could then remove the event listener and return to the normal behavior of the List component.
I am trying to create a scroller...The videoSlider is my scrollBar and I want to drag it so my secondMC will move....everything works fine in my code but if I mouse down in my videoSlider and up outside of it....The drag state still apply and it's not what I desire....any ideas?? Thanks...
videoSlider.addEventListener(MouseEvent.MOUSE_DOWN, scrollMC);
videoSlider.addEventListener(MouseEvent.MOUSE_UP, stopScrollMC);
var eventTarget:Object; // to allow more global access to the dragged object
function scrollMC(event:MouseEvent):void{
eventTarget = Object(event.currentTarget);
eventTarget.startDrag(false,new Rectangle(0,0,500,0));
stage.addEventListener(MouseEvent.MOUSE_MOVE, adjust2ndX);
}
function stopScrollMC(event:MouseEvent):void{
eventTarget.stopDrag();
stage.removeEventListener(MouseEvent.MOUSE_MOVE, adjust2ndX);
}
function adjust2ndX(evt:MouseEvent):void {
secondMC.x = eventTarget.x;
}
Listen for MouseUp on the stage. Your object isn't going to get a MouseUp event if the mouseup occurs somewhere else.