Parabola is not drawn with enough lines

[michael]

http://www.geogebra.org/web/test42/?f=_conics.ggb

In Chrome, you can see the lines of the parabola (ie should be drawn with more, shorter lines)

In Firefox it's fine.

[zbynek]

Actually we use quadraticCurveTo: ​http://www.w3schools.com/html5/canvas_quadraticcurveto.asp -- so the number of parts should not be important.

[michael]

Looks like it might still be split up into sections (?)
http://www.geogebra.org/trac/browser/trunk/geogebra/web/src/geogebra/web/kernel/gawt/QuadCurve2D.java

[zbynek]

It looks like Chrome was using lineTo instead of quadraticCurveTo. If you highlight the parabola, it is drawn without problems. So is the problem caused by selected stroke? Also I'm getting a lot of these:

[WARN] [web] - Something other than an int was returned from JSNI method '@…$ClientRect::getLeft()': Rounding double (10.416666030883789) to int for int

when opening _conics.ggb in Chrome.

[zbynek]

In the attached file, one of the parabolas is drawn incorrectly in the same way in Desktop too. At least here (OpenJDK java 7). Both 4.0.20 (eclipse) and trunk.

[michael]

Interesting. It's fine here in Java 1.7u2

Is the highlighting correct in OpenJDK7?

[zbynek]

QuadTo replaced with CurveTo in and it seems that it works just OK.