28 Apr
2015
28 Apr
'15
5:32 p.m.
Hi Peter!
This is a problem we have had for a while. I did not think about comparing it with the
path.
We will rewrite RTBezierLine to use TRSVGPath
We will let you know
Cheers,
Alexandre
--
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Alexandre Bergel http://www.bergel.eu
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On Apr 27, 2015, at 6:34 PM, Peter Uhnák
<i.uhnak(a)gmail.com> wrote:
Hi,
it seems that last control point of a bezier line is off.
Here is a comparative view of RTBezierLine (black line) and bezier line done with SVG
(red line). Notice how the bottom half is flatlined and doesn't match up.
<2015-04-28_00:29:16.png>
And the code (based on RTRoassalExample>>exampleBezierCurve):
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| v e1 e2 l s p1 p2 path svg|
v := RTView new.
e1 := (RTEllipse new size: 15; color: (Color blue alpha: 0.4)) element.
e2 := (RTEllipse new size: 15; color: (Color blue alpha: 0.4)) element.
e2 translateBy: -150 @ 150.
p1 := RTBox element.
p2 := RTBox element.
p1 translateTo: (e2 position x + e1 position x / 2) @ e1 position y.
p2 translateTo: (e2 position x + e1 position x / 2) @ e2 position y.
v add: p1.
v add: p2.
s := RTBezierLine new.
s color: Color black.
s controllingElements: (Array with: p1 with: p2).
l := s edgeFrom: e1 to: e2.
v add: e1.
v add: e2.
v add: l.
path := 'M -150 150 Q -75 150 -75 75 Q -75 0 0 0'.
svg := RTSVGPath new borderColor: Color red; path: path; element.
v add: svg.
^ v
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Peter
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