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Change metric to create more interesting zone shapes.

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This commit is contained in:
Tomasz Zieliński 2023-04-18 22:01:51 +02:00
parent 39154737a5
commit 15592c3aff
1 changed files with 9 additions and 13 deletions
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22
lib/rmg/CZonePlacer.cpp
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@ -687,22 +687,18 @@ void CZonePlacer::moveOneZone(TZoneMap & zones, TForceVector & totalForces, TDis
float CZonePlacer::metric (const int3 &A, const int3 &B) const
{
/*
Matlab code
dx = abs(A(1) - B(1)); %distance must be symmetric
dy = abs(A(2) - B(2));
d = 0.01 * dx^3 - 0.1618 * dx^2 + 1 * dx + ...
0.01618 * dy^3 + 0.1 * dy^2 + 0.168 * dy;
*/
float dx = abs(A.x - B.x) * scaleX;
float dy = abs(A.y - B.y) * scaleY;
//Horner scheme
return dx * (1.0f + dx * (0.1f + dx * 0.01f)) + dy * (1.618f + dy * (-0.1618f + dy * 0.01618f));
/*
1. Normal euclidean distance
2. Sinus for extra curves
3. Nonlinear mess for fuzzy edges
*/
return dx * dx + dy * dy +
5 * std::sin(dx * dy / 10) +
25 * std::sin (std::sqrt(A.x * B.x) * (A.y - B.y) / 50);
}
void CZonePlacer::assignZones(CRandomGenerator * rand)