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<span style="box-sizing: border-box;">GSoC Week9 </span></h1>
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<span style="display: block; box-sizing: border-box;"><span style="box-sizing: border-box;"><strong>YimingWu</strong></span></span><span style="display: block; box-sizing: border-box;"><span style="box-sizing: border-box;">Hello everyone, here's my week 9 report!</span></span></p>
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<span style="box-sizing: border-box;">Things have done</span></h2>
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<span style="display: block; box-sizing: border-box;"><span style="box-sizing: border-box;">Suprisingly with Darkdefender's Smooth Contour implementation (Here:
</span><span style="box-sizing: border-box;" spellcheck="false"><a style="color: rgb(70, 63, 92); text-decoration: underline; cursor: pointer; box-sizing: border-box;" href="http://www.labri.fr/perso/pbenard/publications/contours/">http://www.labri.fr/perso/pbenard/publications/contours/</a></span><span style="box-sizing: border-box;">),
the result become a lot more better because the algorithm solves the front/back facing inconsistency problem using a geometry approach, it uses a modifier to achieve such function, the only problem is that geometry process is slower than expected, and it
require subdivision. We are trying to optimize this in the future.</span></span></p>
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<span style="display: block; box-sizing: border-box;"><span style="box-sizing: border-box;">Plan to use Ramer Doglas Prucker algorithm to simplify the vector curve. Here's a simple discription of this algorithm:
</span><span style="box-sizing: border-box;" spellcheck="false"><a style="color: rgb(70, 63, 92); text-decoration: underline; cursor: pointer; box-sizing: border-box;" href="http://karthaus.nl/rdp/">http://karthaus.nl/rdp/</a></span><span style="box-sizing: border-box;">
As for chainning, The only faster method is to use the same acceleration structure for occlusion test and intersection calculation, but even more memory is required in this method, as it will store more point linkers.</span></span></p>
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<span style="display: block; box-sizing: border-box;"><span style="box-sizing: border-box;">SVG export can then be achieved after this vector data is present.</span></span></p>
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<span style="display: block; box-sizing: border-box;"><span style="box-sizing: border-box;">User will be able to adjust how much simplification they want for the curve.</span></span></p>
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<span style="display: block; box-sizing: border-box;"><span style="box-sizing: border-box;">Vector programs such as Inkscape can reduce the amount of points and create bezier curve from them.</span></span></p>
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<span style="display: block; box-sizing: border-box;"><span style="box-sizing: border-box;">Fixing the places that got pointed out during the code review.</span></span></p>
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<span style="display: block; box-sizing: border-box;"><span style="box-sizing: border-box;">Fixed depth offset algorithm, but sometimes still look weird in viewport.</span></span></p>
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<span style="box-sizing: border-box;">Next week</span></h2>
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<span style="display: block; box-sizing: border-box;"><span style="box-sizing: border-box;">Continue fixing errors in code review.</span></span></p>
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<span style="display: block; box-sizing: border-box;"><span style="box-sizing: border-box;">Implememt vector chainning and reducing.</span></span></p>
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<span style="display: block; box-sizing: border-box;"><span style="box-sizing: border-box;">user should be able to use reduced vector result to produce line effects like jittering, extending and dot dash.</span></span></p>
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<span style="display: block; box-sizing: border-box;"><span style="box-sizing: border-box;">Implement svg export. (Hopefully)</span></span></p>
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<span style="box-sizing: border-box;">Questions</span></h2>
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<span style="display: block; box-sizing: border-box;"><span style="box-sizing: border-box;">Seems there are not much questions now. If there's any I will ask in IRC when I'm coding.</span></span></p>
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<span style="display: block; box-sizing: border-box;"><span style="box-sizing: border-box;">YimingWu</span></span></p>
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