Actionscript 3 :: Get Ending Point Of A Line Drawn With LineTo In Flash?
May 10, 2011
I have drawn a series of lines using flash's graphics.lineTo command, and placed them in an array to be referenced later. Based on certain user interactions, the clips that hold these lines can be shifted to the right, causing the lines to move with them, no longer connecting to the point they originally connected to. So I need to extend the lines by the amount their parent clip was shifted (I've called this incVal). So what I need to do is find the point at which each of these lines ended at, and draw from that point to the left by incVal. How do I get that ending point of the line?
This is my code:
To draw line and add it both to the clip and to an array for future reference:
this is the thing: Using "lineTo" i get a line drawn on stage when dragging a mc. Then i should have four mc (note1, note2, note3, note4) added randomly over this line. I mean, the line is drawn and then over some parts of this line, using x and y of some of the points drawn there, this movie clips should be added randomly. I can make the mc appear randomly, but always in the same point (mouseX, mouseY); i cannot access others x and y of the drawn line. This is my code (noteContainer is a sprite):
Code: private function drawingAPI(event:MouseEvent):void{ sprite1.graphics.lineTo(mouseX, mouseY); }
I am trying to draw a line from x1, y1 to x2,y2 and i want it to be a line that repeats a pattern from an image. All I can see is that you can only draw lines and change their color or thickness but I would like it to repeat an image. Is that possible or do i have to use a really long and thin rectangle with a bitmap fill?The problem is I am making a game where the user will be able to actually draw the line so i have to make it be created dynamically. The game fantastic contraption [URL] has in the game a feature where you draw lines of any length and position that are filed with a picture.
I am developing a software in flash in which I need to draw some points in a movie clip dynamically with moveTo() and lineTo() during the runtime of the software. However, later in the future (during runtime), given the (x,y) coordinates of a point, I need to know if this specific point is part of the curve I drew before. Is there a way of doing that without saving the (x,y) coordinates of all the points I have drawn in the movie clip?
I have this file http:[url].... Basically lines gets drawn where ever I tween the animation.arrow MovieClip. What I'm wanting to do is be able to rewind the MovieClip and have the line erase its self step by step.
I'm extremely new to flash programming, and suddenly my teacher give me assignment to make a flash about mirror reflection line. Here is my as code to draw a simple line after following some tutorial online.
I'm trying to animate a line by drawing using tweenmax and lineTo, but flash seems a little confused about the coordinates of things. The lines are also drawn a little shaky. Here's my code:
var childArray:Array = new Array(sC0,sC1,sC2,sC3); var curChild = 0; function drawLines(){
I'm trying to work out how to create a simple demo that works as follows: A ball falls from the top of the stage.Player is able to draw a line anywhere on the stage. The ball will bounce/roll along the line such that the player can guide it at will. I don't think the coordinate rotation will be a problem for me but I can't figure out how to transform a line drawn by the player into a hit detectable sprite -- or realkly any way that I can get those line coordinates into my coordinate rotation routine. To keep it simple, I'm just working on the first part of the problem, getting the line to where I can hit test or know its position.Here is my code so far:
Lets say I have two objects, and I want to use action script to draw a line connecting them, which will update automatically as they are moved/ dragged.Can anyone show me how to do that, and also how to control line's parameters like colour, weight etc?
LineTo() and curveTo() provide basic level drawing. However, the lines these functions produce look like they were drawn by the line or pen tools. Is there any way, through either existing functions or through modifying current ones, that I could made the drawings done through actionscript look like they were drawn using the brush tool?
My first thought was to see if this was in default actionscript and could not find it. My second was to see if someone had already created the class, and while for a time I thought someone had, I lost the link . I guess I could always create the class myself, but I honestly have no starting point (like what algorithm flash uses to create its brushstrokes) and don't want to waste my time if something similar is already in existence.
If I skin a button and use the AS3 graphice.clear() and graphics.lineTo and beginFill to create a shape, the button overlaps other items in the container.
When I use the and mxml to create the same shape, the button is neatly positioned inside the container.
I am working on Drawing API. There is a movieclip on stage which I am animating using Tween class. I just want to draw a line from the initial position of a the movieclip to it's final position. I can draw line, but I can see the lines being duplicated each time the enterframe runs. I just want a single line do be drawn from the movieclip's initial position to it's final position.
Here is my code
Code: import mx.transitions.Tween; import mx.transitions.easing.*; var myTween:Tween = new Tween(circ0_mc, "_x", Strong.easeOut, circ0_mc._x, 0, 2,
I am using AS2 with Flash 8 Professional So, my problem is that I currently have a man in the middle of the screen, who shoots a line towards the mouse when I click. However, when I use hitTest to see if the line collides with another object, Flash recognizes the line as a large box if it is diagonal, so the hitTest isn't very accurate. The line only satys there for one frame, so I can't have the usual moving-bullet-style. I am either looking for a way to create an imaginary line with AS from the starting point to the mouse and beyond, and tell whether or not this line intersects with an object... or some other way that I haven't thought of to fix my problem. Keep in mind that the line rotates from a center point towards anywhere around it for 360 degrees.
On mouse move i have a line drawn using lineTo method. This works like in Paint or most drawing programs: the mouse drawing like a pencil. What i need now, and dont know how to accomplish, is to add a number of mclips over that line. And this mclips should be over the line but separated to each other (different x and y of the drawn line). So in the end when moving the mouse the user should get a line and, every certain distance, a number of mclips over it.
I am developing a white board application which allows the user to draw line with arrow head (some like Microsoft Word line with arrow feature). I am using graphics property along with lineTo() method to draw a line. Now i have to draw a angular arrow on the last point of line. I am drawing the arrow by connecting the points around last points. As 360 line can pass through this point and each line can have a different angle of arrow.
I'm drawing a simple line with API and I would like to know how to detect what angle the line has and where a ball hits it.Scenario: the player draws a random line in a random angle, a ball comes in from random points and hits the line, the ball then bounces off the line depending on where it hit the line (and of course depends on the line's angle).I draw the red line with this: (on a 400x400 stage)Actionscript Code:graphics.lineStyle(2, 0xFF0000, 100);graphics.moveTo(150, 150);graphics.lineTo(250, 250);The grey, green and purple lines are just demonstation of the ball movement, comming in from outside the screen, hitting the line and bouncing off in different directions. I just made a guess on the angle they will bounce off in.
I just can't figure out how to detect the line's angle and where the ball hits it. So all I have is a ball flying in from random positions and hitTests the line (not coded yet, but no problem to do ball movement and hitTesting with line), I don't know where to go from there until I know how to detect where it hits the line.I know this is a double post (from the Games section), but I realized this place seems to have more activity and not many seem to visit the Games place anymore.
In Flash CS4, I'm trying to change the stroke width of my line or shape, with it selected, but the stroke width slider is greyed out (thus, unadjustable). Is it possible to edit a stroke width after something has been created? If so, how can this be done? I've tried selecting the line in all kinds of crazy ways, but still can't edit it.
[URL]go to the menu and select education, click the first sub link under education, once there allow for the screen to load, and then click anywhere outside the black border where the text is. You should notice a red line is drawn to the exit link.
I want to the user to be able to draw a line and then have a sprite follow the line as its path. Also, it would be nice if the line could be cleaned up after the user draws it with his/her mouse so that it is made up of clean curves/spline.
I have been looking at how to reflect a point in a line, and found this question which seems to do the trick, giving this formula to calculate the reflected point:
Given (x,y) and a line y = ax + c we want the point (x', y') reflected on the line.
Set d:= (x + (y - c)*a)/(1 + a^2) Then x' = 2*d - x and y' = 2*d*a - y + 2c
However there are two problems with this implementation for my needs:
My line is not described in the form y = ax + c (so I'd have to translate it, which is easy to do, but it means the process is slower). What if a is infinity ie. a vertical line?
Is there a simple way to calculate (x', y'), the reflection of point (x, y) in a line, where the line is described by the two points (x1, y1) and (x2, y2)?
Edit:
I've found a formula which does this, but it seems as though it does not work with lines that look like they have equation y = x.
Here it is in actionscript:
public static function reflect(p:Point, l:Line):Point { // (l.sx, l.sy) = start of line
At the moment I am using two mini objects within the line to calculate the slope of the line I have.
I was wondering if there was some easy function within as3 to find the slope of a line that had been drawn out, if not... I suppose I have my own theories on how to do it, such as checking for hit tests in a circle until I find the line.
I have an application that creates a chart dynamically. This chart has a lot of information plotted on it (4-6 stock trends). I want to be able to toggle some of those lines with a button. Each trend is drawn with something like this:
Code: // establish a new Vector object for the commands parameter var line_commands:Vector.<int> = new Vector.<int>(); line_commands.push(1,2,2,2); // establish a new Vector object for the data parameter var line_coord:Vector.<Number> = new Vector.<Number>(); // use the Vector array push() method to add a set of coordinate pairs line_coord.push(0,0, 75,50, 100,0, 125,50); graphics.drawPath(line_commands, line_coord);
How would I toggle the line I just drew? My first idea would be to put some of this code inside a function and redraw the line with the same color of the movie's background color. I don't know if this is the best option, I was wondering if I could draw this line inside a Sprite or Movie Clip and just toggle its visibility?
I am working on a interactivity wherien i draw lines using a pen/pencil just as in MsPaint application in Microsoft. Ia m done with the pencil/ pen tool and its working fine but I basically want to change the thickness of the line at runtime by using a slider functionality.
