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changed vector field slightly

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Lauchmelder 2021-12-09 22:24:58 +01:00
parent 30e130d123
commit 3b25635c19
2 changed files with 9 additions and 7 deletions
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12
src/Application.cpp
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@ -37,7 +37,7 @@ Application::Application(int width, int height, const char* title)
// Construct dummy velocity field
// TODO: Remove eventually
int fieldSize = 49;
int fieldSize = 39;
double curl1 = -1.0;
double curl2 = 1.0;
std::vector<double> hori(fieldSize * fieldSize);
@ -51,15 +51,17 @@ Application::Application(int width, int height, const char* title)
double realX = -2.0 + (4.0 / (double)fieldSize) * (double)x;
double realY = -2.0 + (4.0 / (double)fieldSize) * (double)y;
// hori[y * fieldSize + x] = (realY + 1.0) / sqrt((realX + 1.0) * (realX + 1.0) + (realY + 1.0) * (realY + 1.0)) - (realY - 1.0) / sqrt((realX - 1.0) * (realX - 1.0) + (realY - 1.0) * (realY - 1.0));
// vert[y * fieldSize + x] = -(realX + 1.0) / sqrt((realX + 1.0) * (realX + 1.0) + (realY + 1.0) * (realY + 1.0)) + (realX - 1.0) / sqrt((realX - 1.0) * (realX - 1.0) + (realY - 1.0) * (realY - 1.0));
// hori[y * fieldSize + x] = -(realX + 1.0) / sqrt((realX + 1.0) * (realX + 1.0) + (realY + 1.0) * (realY + 1.0)) + (realX - 1.0) / sqrt((realX - 1.0) * (realX - 1.0) + (realY - 1.0) * (realY - 1.0));
// vert[y * fieldSize + x] = (realY + 1.0) / sqrt((realX + 1.0) * (realX + 1.0) + (realY + 1.0) * (realY + 1.0)) - (realY - 1.0) / sqrt((realX - 1.0) * (realX - 1.0) + (realY - 1.0) * (realY - 1.0));
// hori[y * fieldSize + x] = realY / sqrt(realX * realX + realY * realY);
// vert[y * fieldSize + x] = -realX / sqrt(realX * realX + realY * realY);
hori[y * fieldSize + x] = -realY;
vert[y * fieldSize + x] = realX;
// hori[y * fieldSize + x] = -realY;
// vert[y * fieldSize + x] = realX;
hori[y * fieldSize + x] = realY;
vert[y * fieldSize + x] = -realX - 1.0*realY;
}
}