[Extendflash] Drawing lines without optimising

[John Deans]

To clarify, I'm drawing curves made up of lots of short straight lines.
 
So the graph drawing function itself looks like this
function drawCurve()
{
 var x1;
 var y1;
 var x2 = xPixMin;
//findPixel is a function that evaluates the function being graphed for
the given value of x
 var y2 = 2*axisHeight + findPixel(func, xPixMin);
 //Loop to draw the curve
 for(var i = xPixMin; i < xPixMax; i ++)
 {
  x1 = x2;
  y1 = y2;
  x2 = i;
  y2 = 2*axisHeight + findPixel(func, i);
  doc.addNewLine({x:x1, y:y1}, {x:x2, y:y2});
 }
}
 
I'm fairly sure there's nothing 'wrong' with this; it's just that the
lines all get smoothed out a bit.
 

________________________________

From: extendflash-bounces at flashguru.co.uk
[mailto:extendflash-bounces at flashguru.co.uk] On Behalf Of sathesh
Sent: 31 August 2005 09:52
To: extendflash at flashguru.co.uk
Subject: RE: [Extendflash] Drawing lines without optimising


Hi
 
>>>On Aug 30, 2005, at 9:54 AM, John Deans wrote: 
I've got a graph drawing tool - you tap in a function, and it draws a
graph. The problem is that as it draws the line, I think it optimises
the curve - so that what would be, say, a nice parabola using the
Drawing API in runtime turns out to be a slightly crinkled version when
drawn in Flash using JSFL. Has anyone else come across this problem? And
has anyone got a fix? 
I have done a Graph tool too but didnt come across the problem you
mentioned (im also drawing straight lines only)...can you post your
script so that we can find out where things going wrong...
 

	-----Original Message-----
	From: extendflash-bounces at flashguru.co.uk
[mailto:extendflash-bounces at flashguru.co.uk]On Behalf Of John Deans
	Sent: Wednesday, August 31, 2005 2:04 PM
	To: extendflash at flashguru.co.uk
	Subject: RE: [Extendflash] Drawing lines without optimising
	
	
	Hi,
	 
	No, I'm just drawing in straight lines - I'm calculating every
point and connecting them.
	 
	John

________________________________

	From: extendflash-bounces at flashguru.co.uk
[mailto:extendflash-bounces at flashguru.co.uk] On Behalf Of Tomas van der
Haase
	Sent: 30 August 2005 18:23
	To: extendflash at flashguru.co.uk
	Subject: Re: [Extendflash] Drawing lines without optimising
	
	
	Hello: 
	r u drawing in cubics [ drawingLayer.cubicCurveTo() ] or
quadratics [ drawingLayer.curveTo() ]? 



	tomas 


	On Aug 30, 2005, at 9:54 AM, John Deans wrote: 


		Hi, 
		I've got a graph drawing tool - you tap in a function,
and it draws a graph. 
		The problem is that as it draws the line, I think it
optimises the curve - so that what would be, say, a nice parabola using
the Drawing API in runtime turns out to be a slightly crinkled version
when drawn in Flash using JSFL. 
		Has anyone else come across this problem? And has anyone
got a fix? 
		Thanks, 
		John 
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