Draw a line between 2 points 1

[Nebooaw]

Hi, is is possible to raw a line between two points i.e.

0,0 & 50,75

Kind thanks.

 

[BillyRayPreachersSon]

Yes. Using JavaScript, the only way I can think of is to write an implementation of Bressenham's line drawing algorithm.

There are a few JS graphic libraries out there which do this already, and I've written one, but don't have the source available right now.

I suuggest searching on Google for "javascript graphics library"... It should turn up at least one of the JS libraries out there.

Hope this helps,
Dan

 

[BillyRayPreachersSon]

Incidentally, should you fancy writing it yourself, the easiest way to draw a "pixel" in JS is to create an absolutely-positioned DIV, and use CSS to style it, somethinig like this:

.pixel {
   position: absolute;
   width: 1px;
   height: 1px;
   background-color: #000000;
   overflow: hidden;
}
...
<div class="pixel"></div>

You can set the top and left coordinates accordingly, and override the background colour if you don't want to use black.

Dan

 

[vbkris]

yup,
layers are the best way to draw lines...

Known is handfull, Unknown is worldfull

 

[BillyRayPreachersSon]

Except layers are now deprecated and were NN only, as far as I know.

Dan

 

[vbkris]

i meant divs just that i term them as layers since i used to work a lot in NN 4.7x...

Known is handfull, Unknown is worldfull