Actionscript 3.0 :: Flash Drawing Board With Erase Function / Erase Line By Line
Jan 9, 2009
Im building a pretty simple drawing board in flash, i got this code from this forum and it works fine (there is more to it but this is the drawing part)[code]This works fine. But i want to be able to erase the drawings, step by step this is ths tricky part, ive looked everywhere(ok not everywhere) but in a whole lot of places but the only thing i found is how i could delete everything with removeChild and that in not what i want. Maybe i need to change the function abowe? Please help me to get in the right direction. What should i read about /look at?
I am making a flex whiteboard application where lines are drawn over an image here is the scenario:
1: main canvas holding the background image and drawing canvas 2: user can move image by dragging image 3: user can draw over image, which is actually drawing on canvas over image.
I'm having problem on erasing lines like it eraser in paint. Searched evry where but didnot find a way to erase drawn lines
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 have a dynamic textfiled on stage and I am appending some lines of text each time in a new line with " ", so it like expand downwards.(it just currently serves me as a trace output online so I can check something)
what I would like to do is when that textfield reaches certain height that the first line at the top of the textfield gets deleted as a new one appers on the bottom and so on...
i'm currently devolping a drawing board out of flash but i was wondering instead of erasing all the pen lines drawn just the last pen line drawn,im using kirupa drawing board tut for the all erase just stuck to gewt the last line erase done
I have a Sprite that I draw into using lineTo. Later the sprite is drawn into a bitmap to add to a mask. That works great. The issue is erasing the vectors in the Sprite once they are drawn.
To draw I just do something like: userDrawing.graphics.lineStyle(12,0x000000,1); userDrawing.graphics.lineTo(mouseX,mouseY)
I found this code on a forum which allows for an undo and erase button for a drawing application (and is perfect for what I need) but it's in AS2 and I can barely make sense of it:
Code: _root.attachMovie("canvas", "canvas", 0); d = 0;
I am using Flex 4 and AS3 and I am trying to make it so that the user can draw a freehand line with the cursor - I have this part done.However, I also need the line to be a dashed line instead of one solid line like it is now. below is my code I am using. I have found some examples on how to do this, but they are all for straight lines, not for a freehand line.
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.
Is there any algorithm to perform erase operation in a bitmap? I would like to create functionality similar to how photoshop or other graphic application performs erase. Is erase operation so difficult that there isn't much help (for bitmaps) available? I am OK even with name of an algorithm, I can proceed from there.
I am trying to dispatch an event but not sure when I should do it to get the right results. The first event "submitClicked" is in the right spot and works great. However, the second event "dataReady" seems like it might be a problem. I need it to be dispatched after this.compiledFormData is set.Does AS3 wait for each line of code in a function to be executed before moving on to the next line?
// -------------------------------------------------------------------- public function submitForm() {
If I have a sprite, with which I have drawn some stuff, how do I erase part of what I have drawn? Preferably I could use drawRect with some "alpha=0" paint. However, I don't believe beginFill lets you set an rgba color (like you can in bitmapdata). Setting alpha = 0 in beginFill doesn't really do anything -- it just draws nothing. In my particular use case, masking isn't an option. Also, calling clear() isn't a good solution since it clears away everything.
I'm trying to draw two circles at random positions, and draw a line between those two circles - but flash doesn't seem to register the x|y coordinates of the circle in my code.How would I do this. Better yet, how would I do this so that if I were to drag one of the circles, the line would maintain the connection between those points? Here's my code:
var sw = stage.stageWidth; var sh = stage.stageHeight; var cr = 6; //circle radius
i want to duplicate a line 4 times, and move each line on Yaxis, with a delay of 1sec each time. I know i must use setinterval+duplicateMovieClip, but i've got pbs :-( actually, i've got my AS code on my line :
I'm Trying to make a very simple E mail form using textinput boxes and sending variables to php.Thing is that my erase button stops functioning once I hit the Submit button.[code]
I'm Trying to make a very simple E mail form using textinput boxes and sending variables to php.Thing is that my erase button stops functioning once I hit the Submit button.here are the scripts for Submit and Erase:
Submit script: on (release) { name = _parent.mailer.name.text;[code].....
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 am trying to take photos using webcamera from online web application and i got sample code from [URL] It is working fine to take photos online with the attached web camera and saving it into server for future purpose. Here my problem is i want to keep horizontal and vertical lines on top of the camera area but what ever line i am placing all displaying behind the video area and camera area is displaying ontop of all layers.
wat i want to make.. is a graph plotter.. i add movie clips on the stage and a line should connect them all.. but im having a fkload of problems in solving that..here is the code for adding the movie clips.
function makeABox(e:Event):void { var newBox:myMC = new myMC(); addChild(newBox);
I recently saw "Remove or Reuse" by badaboom, in which he set the the invader instance to "null".In my constructor, I have a sprite variable as [code]When the user clicks the start button, the trail sprite is used.[code]After the user click the start button, a timer starts and the trail is drawn [code]Since this is a simulation, the user will want to erase all the trails drawn at some instance to show new examples. In in the reset button, if I set:[cod]Then do I lose the trail variable? Because I need to re-use it later in the start button and in the timer. I also learned somewhere that garbage collection only collect when the variables does not link to any other instances. In this case, the trail is still sticking onto the container_mc right?I have tried container_mc.removeChild(trail) alone, but when I addChild(trail), none of the trails drawn are deleted.
I have a picture in a BitmapData object. And an array of points. I nead to erase the part of the picture inside a polygon specified by the points. In other words, draw a polygon specified by the points and fill it with transparency.
I need a short code for erasing lines drawn on an Android device. This is the code that generates my line:
this.graphics.lineTo(event.stageX, event.stageY);
I cannot seem to get the code right for erasing this line with movement detected by the accelerometer. I want to shake it like an 'etch-a-sketch' to erase the lines.
