I'm using Python 3.8.10 with geometer 0.2.3. This code snippet: <div class="snippe

In lower dimension: <div class="snippet-clipboard-content notranslate position-rel

Sphere intersection error about geometer HOT 2 CLOSED

pauljurczak commented on July 30, 2024

Sphere intersection error

from geometer.

Comments (2)

pauljurczak commented on July 30, 2024

In lower dimension:

c0 = Circle(Point(0, 0))
c1 = Circle(Point(0.5, 0))
print(c0.intersect(c1))

produces 4 points instead of 2:

[Point((-0.37668042531440393+0.012155567468115842j), (-0.926436204898802-0.0049423417388226275j)), Point((-0.37668042531440393+0.012155567468115842j), (0.926436204898802+0.0049423417388226275j)), Point((1.7454151674131546+0.029006203522656038j), (0.03538693234235372-1.4306938812246648j)), Point((1.7454151674131546+0.029006203522656038j), (-0.03538693234235372+1.4306938812246648j))]

from geometer.

jan-mue commented on July 30, 2024

Calculating the intersection of quadrics in 3D or higher dimensions is not supported yet.

The intersection of two circles will always return 4 points: Two real points of intersection and two complex points. I added the property Point.isreal in version 0.3 to help you filter the result. There also was an issue with the calculation of the points of intersection of conics (see #36). This is fixed in version 0.3.

from geometer.

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