Review Request 119621: Support for Geogebra's intersections, constrained points and Loci in kig ( GSoC 14 )

[David Narváez]

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Can you separate Line-Line intersection into its own patch? Since that is workingg OK with the current model from what I see.

- David Narváez


On Aug. 12, 2014, 1:57 a.m., Aniket Anvit wrote:
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> https://git.reviewboard.kde.org/r/119621/
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> (Updated Aug. 12, 2014, 1:57 a.m.)
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> 
> Review request for KDE Edu and David Narváez.
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> Repository: kig
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> Description
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> Line-Line intersection is perfect and simple to implement with the existing model. Other Intersections are a bit challenging since they output more than one object (point) unlike the other commands ( which output just one object).
> LineConic, Circle-Circle intersections seem fine to me but I have some trouble in understanding whether my approach is correctly assigning the output-label to the obtained intersection points ( while filling the m_objectMap). Please check whether the IntImp parameter I am passing to the IntersectionTypes is correct or not. ConicConic Intersections produce 4-points sometimes and they have been implemented as Line-Conic intersections in Kig. So, we have to find the Radical-Lines of the conics first before finding the intersection-points. Currently , there is an issue that the Radical-lines are also added to the document ( while they should not be ), but this should be simple to take care (If you give the go-ahead to this approach). 
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> Constrained points are must for Locus. I have implemented them , but the extra-handling required is making things a little ugly.
> Locus is under progress...
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> Diffs
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>   geogebra/geogebra.xsl 87ef07b 
>   geogebra/geogebratransformer.h 5f36827 
>   geogebra/geogebratransformer.cpp aee8669 
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> Diff: https://git.reviewboard.kde.org/r/119621/diff/
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> Testing
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> I ran some basic tests for all the intersection cases which have been implemented. Seem ok. Only issue is with the conic-conic intersection case where we get the additional ConicRadical Lines which should be visible in Kig. However, this should be easy to take care of if this implementation survives.
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> File Attachments
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> locus_working_1
>   https://git.reviewboard.kde.org/media/uploaded/files/2014/08/10/9559b469-3c24-41d8-b9ba-809e68f86fbe__locus_working_1.ggb
> locus_working_2
>   https://git.reviewboard.kde.org/media/uploaded/files/2014/08/10/fce5bd47-794b-4ae3-aa21-4cd7c688c6fe__locus_working_2.ggb
> locus_working_3
>   https://git.reviewboard.kde.org/media/uploaded/files/2014/08/10/8cc09d1b-ff42-4a99-b2ad-7d7b403c92ad__locus_working_3.ggb
> locus_crashing
>   https://git.reviewboard.kde.org/media/uploaded/files/2014/08/10/c5c142eb-9542-4c2b-b6f8-0250ccdfb3fd__locus_crashing_parabola.ggb
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> 
> Thanks,
> 
> Aniket Anvit
> 
>

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