[reportlab-users] FW: linkAnnotate and linkRect, relative to transforms

[Tim Roberts]

Ian Sparks wrote:

>

>  

>

> Finally. I thought scaling and transforms were supposed to be

> additive? My last example I scale by 50% then move 5 inches up.

> Doesn’t look like anything is scaled anymore?

>


Yes, transforms accumulate.  However, I think you are being fooled by
that very effect:



>     canv = canvas.Canvas('test.pdf')

>

>     canv.bookmarkPage('t1')

>

>     canv.setFont('Courier',20)

>

>  

>

>     #Test page

>

>     makePage(canv,'Normal')

>

>  

>

>     #Make 50% smaller       

>

>     canv.scale(0.5,0.5)

>

>     makePage(canv,'50% Scaled')

>

>  

>

>     #Move origin up 5 inches

>

>     canv.translate(0,5*inch)

>

>     makePage(canv,'Scaled and moved 5 inches up')

>


This does *not* move the origin 5 inches up.  It moves the origin 2.5
inches up, because everything is already scaled down by 50%.  You might
want to do these in the opposite order...

-- 
Tim Roberts, timr at probo.com
Providenza & Boekelheide, Inc.