I've got a grid of sprites.Now I would like to drag an image on a grid-element.Therefore I need to know which x/y of the grid-element is the closest point to the mouse-position.
View 2 RepliesI have a path drawn in the flash IDE, accessible as a MovieClip.
With AS3 I need to find the closest point lying on this path to another point.
To make this easy, lets say I have a movie clip with a diagonal line in it (top left to bottom right).
I want to start my y position at 0, and place it in a loop and increase y by 5 every time. So we start at the top left of the clip, and move to the bottom of the clip.
Now since we have our y value (0, 5, 10, etc.) would you get the x position of the line? such as (x, y):
5, 10
or
42, 15
So if the value of myVar = 50;..and the array holds the values 25, 100, 150, etc.I want to write a function that will be able to find the array element that's closest to myVar, which would be the first element in the array (myArray[0]), since 25 would be the closest value to 50.
View 4 RepliesWhat is the best way to find the closes value in a range...
for example i have an array with 0, 90, 180, 270, 360.And a number 46...
What is the best way to find 90 in the array?
I have a single point and a set of shapes. I need to know if the point is contained within the compound shape of those shapes. That is, where all of the shapes intersect.But that is the easy part.If the point is outside the compound shape I need to find the position within that compound shape that is closest to the point.These shapes can be of the type:squarecirclering (circle with another circle cut out of the center)inverse circle (basically just the circular hole and a never ending fill outside that hole, or to the end of the canvas is there must be a limit to its size)part of circle (as in a pie chart)part of ring (as above but lineThe example below has an inverted circle (the biggest circle with grey surrounding it), a ring (topleft) a square and a line.
If we don't consider the line, then the orange part is the shape to constrain to. If the line is taken into account then the saturated orange part of the line is the shape to constrain to.The black small dots represent the points that need to be constrained. The blue dots represent the desired result. (a 1, b 2 etc.)Point "f" has no corresponding constrained result, since it is already in the orange area.For the purpose of this example, only point "e" is constrained to the line, all others are constrained to the orange orange area.
I'm stuck trying to define the y mouse position inside a mask.How does one set boundaries in which to find a mouse position?
View 1 RepliesI am trying to make an animation where the user can mouse over a small MC at the top of the stage, which controls the movement of another larger MC at the bottom of the stage.I am thinking that 'points' (which I know nothing about) might be the way to go. The other thing is that it needs to be fluid motion. Am I at least on the right track with points and mouse_move or is there a better approach for this?
View 2 RepliesI trained on flashMX back in the day and haven't done anything since so now I've got CS5 it's a bit like being at school again! I have a circular dial sat in the middle of the screen with an arrow placed on it's edge. How do I get the dial to rotate so it always faces the mouse pointer?
View 7 RepliesI have recently followed a tutorial to make a movieclip in flash that makes buttons spin around a point depending on the mouse position. I have made my own version off this and would like to use it in a full flash website that i am making at the moment.
The only problem that i am having is with aligning this clip and as it is made up of script i cant physicly drag it to were i want it. I understand how to alighn this with x/y positioning but when i preview the flash in a web browser it is positioned correctly but then when i 'full screen' the browser this clip jumps about 4 inches down the page.
i've been working on a problem for a while now, which involves targeting the closest movieClip in relation to the x y coords of the mouse, I've attached a nice little acompanying graphic.Each mc added to the stage has it's own sub-class (HotSpots) which uses Pythag to measure distance from mouse. At this stage i can determine the closest value from my Main class but can't figure out how to reference it back to the movieclip... hope this makes sense. Below are the two Classes.My Main Class which attachs the mcs, and monitors mouse movement and traces closest value.[code]
View 3 RepliesI have an array filled with hundreds of numbers.I want to write a function that gets passed a number and searches my array for the closest value in the array to that number.
View 1 Repliesif i have a movieclip or a sprite could i find (via code) where is its registration point compared to its top left point (no rotation included) ?
View 4 RepliesI know some basic trig. but how do i find an angle from an anchor point and a moving point?
adjecent = _root.anchor._x-_root._xmouse;
opposite = _root.anchor._y-_root._ymouse;
hypotenuse = ((adjacent ^ 2)+(opposite ^ 2)) ^ 0.5;
From the Robert Penner code given in this tutorial: [URL] i was wondering why controlx and controly has to be so complicated. I've tried changing it to just _root._xmouse but it messes up. I don't get this, shouldn't the curve point be the same point as the mouse?
View 13 Repliesi am trying to find center point of my pie.
var myTween:Tween = new Tween(piechart,"............", Strong.easeOut,1200, 510, 1, true);
i want to animate from the center and it has a xml driven data file.
Basically the x position of the mouse should control the play position of a movie. Do I need something like an event handler (I'm not sure exactly what these do, but I've seen similar scripts that seem to use them).
View 2 RepliesI have an Input Text area that users can edit and then submit. I need to be able to show, on screen, the cursor's current position as they type. I don't need to know where the mouse is but all work-arounds I've found so far can only tell me the mouse position. The font for the text is 'courier' or 'courier new' and the Input Text area is scrollable.
View 8 RepliesI'm not a genius in geometry, I'd like to find a point in as3 with the radius and a angle but I don't remember the rule, I know this should be simple!
View 3 RepliesI am currently looking at a way of visualising data and a part of the algorithm needs something 99% the same as A* Path Finding but I cannot wrap my head round it fully. I know it will be a fairly simple modification. (specific cost instead of least cost)
Basically I need to plot a path (2D Grid, no Diagonals) from point A to point B in X number of steps.
E.g. If the start and end points were right next to each other and I needed the path to be 3 steps it would have a tiny loop. (moves: up, right, down). Is there a known name for this algorithm or is the use of this so rare it's uncommon? I am currently looking at this AS3 Librbay for modification as it is apparently very fast and seems clean and simple to me:[URL]..
I once needed to pan a sprite full of movieClips (picture 1) which were draggable with no bounds so you could drag them up and left (higher than sprites registration point).
You could also drag them down and right and expand a sprite that way (as well) but that didnt matter.What did matter was how much is 'up' and 'left' from the sprite registration point so i can include that in my formula for panning.
This was easy to find, i just sorted my array of movieClips, sorted on x and sorted on y after each drag, and thats how i got my up and left points.
Now I am trying to do that same thing, exept my movieclips inside a sprite have a custom rotation (picture 2), so i also have an up and left point, except this time up and left are caused by rotations of movieClips inside a sprite... (and these are dragable as well with no bounds)
How could I find the distance between a given point and a drawn line? I was thinking about using the point-slope formula to draw a perpendicular line between the point and the line and measuring it as the distance, but I'm not quite sure how to do this in as3.
View 0 RepliesGiven this grid (tinyurl.com/63dgoja --> This is a trapezium/trapezoid, not a square), how do you find the point clicked by the user? I.e. When the user clicks a point in the grid, it should return the coordinates like A1 or D5.
View 2 RepliesI am looking for a way to find a vector if I know one point and 1 angle. Like I have A(x, y) and a vector starting from A(x, y) with an angle. I would like to know the position on a point X (x, y) that can be anywhere on that vector. I only know the coordinates of A and the angle. Possible?? I guess it has to be a function...
View 5 Repliesi'm triying to make a dinamic generated plane, that plane has a grid with lines in X and Y, by now i'm able to generate a grid clicking and dragging points to make 4 lines and i generated 2 lines between the midles of the opposites lines like this:
[Code]...
i want to find third Point of Triangle i Have two point p1,p2 with respect to it i want to find third point of triangle
Note one thing triangle is 45 - 90 - 45 degree so the point i want to find is at 90 degree,
so as per my requirment p1 = 45 degree p2 = -45 degree and p3 = 90 degree so i want to find p3
I have a number of boxes on screen - each box is a rectangular movieclip, and they fall to the bottom of the screen where they pile up to make a stack of boxes. I'm using box2d for the physics. Oh, and each box may be rotated. I need to find the highest point - ie the smallest y value, of the stack of boxes.
Obviously I can find the position of the highest box's registration point easily (which is the centre of each box) - but that may not be the highest point of the pile of boxes. The highest point may not even be the highest box - it could be a lower box that is rotated on end, for example.
I want to find out if the user is currently using more than one finger to draw on the screen.currently, the TouchEvent object doesn't have any property like touchCounts, which tells the number of touches on the screen. it just has a touchPointID, which helps to identify a particular touch.
do i need to handle this on my own ? for eg: in the TOUCH_BEGIN event handler i could see how many different unique touchPointID i have received and update the count myself.
I have two circles, an inner circle and an outter circle. I'm trying to find points that reside within the area between the edge of the inner circle and the edge of the outer circle.
View 1 RepliesI'm having trouble with this code
var imageMap:ImageSnapshot= ImageSnapshot.captureImage(object);
var pixelValue:uint = imageMap.bitmapData.getPixel(x, y);