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29 lines
660 B
C++
29 lines
660 B
C++
#include "ellipsoid.h"
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#include "utm.h"
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Projection::Setup UTM::setup(int zone)
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{
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return Projection::Setup(0, (qAbs(zone) - 1)*6 - 180 + 3, 0.9996, 500000,
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zone < 0 ? 10000000 : 0, 0, 0);
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}
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int UTM::zone(const Coordinates &c)
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{
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int zone = int((c.lon() + 180)/6) + 1;
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if (c.lat() >= 56.0 && c.lat() < 64.0 && c.lon() >= 3.0 && c.lon() < 12.0)
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zone = 32;
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if (c.lat() >= 72.0 && c.lat() < 84.0) {
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if (c.lon() >= 0.0 && c.lon() < 9.0)
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zone = 31;
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else if (c.lon() >= 9.0 && c.lon() < 21.0)
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zone = 33;
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else if (c.lon() >= 21.0 && c.lon() < 33.0)
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zone = 35;
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else if (c.lon() >= 33.0 && c.lon() < 42.0)
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zone = 37;
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}
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return zone;
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}
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