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fixed behavior for finding center of undefined circles

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This commit is contained in:
Mikhail Allen 2021-06-01 15:37:23 -04:00
commit cce1c58645
1 changed files with 5 additions and 2 deletions
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7
src/geo/base.js
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@ -321,12 +321,15 @@
*/
function circleCenter(A,B,C)
{
let denominator = 2*determinant33([[A.x, A.y, 1], [B.x, B.y, 1], [C.x, C.y, 1]]);
let xmat = [[A.x*A.x + A.y*A.y, A.y, 1],[B.x*B.x + B.y*B.y, B.y, 1],[C.x*C.x + C.y*C.y, C.y, 1]];
let ymat = [[A.y, A.x*A.x + A.y*A.y, 1],[B.y, B.x*B.x + B.y*B.y, 1],[C.y, C.x*C.x + C.y*C.y, 1]];
let center = {x:determinant33(xmat), y:determinant33(ymat), z:A.z};
let center = {x:determinant33(xmat)/denominator, y:determinant33(ymat)/denominator, z:A.z};
return center;
if (denominator !== 0) {
return center;
}
}
/**