RE: FLASH: let an app-user draw a line....

[neo binedell]

hiya

create a clip containing a line (stroke: hairline) starting at 0 rotated 45

deg down from the right (top-left to bottom-right)


when you need to update the line


_x	  = V0.X;

_y	  = V0.Y;

_xscale = V1.X - V0.X;

_yscale = V1.Y - V0.Y;


where V0 is your first point and V1 your end point.


The other way which allows scaling is to have a line going right,

and then computing the angle of rotation required between two points

(trig/pythagoras)


layder

neo binedell


-----Original Message-----

From:

ownerchinwag [dot] com

 [

ownerchinwag [dot] com]On">mailto:ownerchinwag [dot] com]On

 Behalf Of Ruben

Mafura

Sent: January 4, 2001 3:35 PM

To:

flasherchinwag [dot] com

Subject: FLASH: let an app-user draw a line....





GoodDay Flashers,

________________________________________


1st of all, BEST WISHES FOR U ALL!

Hope u all had a fantastic start of 2K1.

________________________________________




...right,


The problem i ran into which i'd like to share with u.


A simple line....has a set of 'origin-coordinates' ('X' & 'Y')an

'instance-hight' and an 'instance-width'.


What if u would want to draw a line, based on values, entered into a dynamic

text field?

A user enters 2 sets of xy-coordinates and the flash application draws the

corresponding line in a predefined section.



I thought of the next solution;


A short preFab line (grafic) with a positive angle of e.g. 45 degrees is

positioned according to the first set of coordinates, next, the line is

scaled in order to get the other end of the line to correspond with the

second set of coordinates. This way you're able to create lines with a

positive slope. For lines with a negative slope, you use a prefab line with

a negative angle of 45 degrees.


The math-part (determining wether the slope of the line is positive or

negative  AND  the scaling part) is not yet perfected but i think i can get

it to work.




...however, i can't shake the idea that there should a much, much simpler

alternative to all this.





I appriciate every effort put into a possible answer.


Regards,

RuupY



Pecoma  ICT-groep * De mensen, de oplossingen *  http://www.pecoma.nl


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dank.

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flasher is generously supported by...

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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 November 27-29, 2000, LONDON, National Film Theatre


   Produced by United Digital Artists and lynda.com

-Sponsored by Macromedia, Adobe Systems and Apple Computer

-http://www.flashforward2000.com  or UK tel. +44 (0870) 751 1526

       Register before November 10 and save �200

            http:// www.flashforward2000.com

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  To unsubscribe or change your list settings go to

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