Find all the grid points that are inside of the circle

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Marina Markaki
Marina Markaki 2021 年 4 月 22 日
コメント済み: Star Strider 2021 年 4 月 27 日
I have my radius being between 1 and 10 and my angle from 0 to 2pi. I defined an uniform rectangular grid with 10 points (10 by 10) and I want to find how many points fall into the circle. Thanks a lot.

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Star Strider
Star Strider 2021 年 4 月 22 日
Use the inpolygon function.
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Marina Markaki
Marina Markaki 2021 年 4 月 27 日
But I want the points located inside or on edge of a cricle not a polygonal region. Is this going to work?
Star Strider
Star Strider 2021 年 4 月 27 日
The inpolygon function can output the points in or on the polygon.
A polygon does not havve any defined shape, other than being a closed boundary, so a circle is a polygon.
It will work. (Since this appears to me to be homework, I did not post the code I wrote to check it to be certain that it does.)
.

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