mirror of
https://github.com/tumic0/GPXSee.git
synced 2024-10-06 23:03:22 +02:00
67 lines
1.2 KiB
C++
67 lines
1.2 KiB
C++
#include <QStringList>
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#include "pcs.h"
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#include "crs.h"
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Projection CRS::projection(const QString &crs)
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{
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QStringList list(crs.split(':'));
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QString authority, code;
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bool res;
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switch (list.size()) {
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case 2:
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authority = list.at(0);
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code = list.at(1);
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break;
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case 6:
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authority = list.at(4);
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code = list.at(5);
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break;
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case 7:
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authority = list.at(4);
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code = list.at(6);
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break;
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case 8:
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authority = list.at(4);
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code = list.at(7);
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break;
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default:
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return Projection();
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}
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if (!authority.compare("EPSG", Qt::CaseInsensitive)) {
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int epsg = code.toInt(&res);
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if (!res)
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return Projection();
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PCS pcs(PCS::pcs(epsg));
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if (!pcs.isNull())
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return Projection(pcs);
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GCS gcs(GCS::gcs(epsg));
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if (!gcs.isNull())
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return Projection(gcs);
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return Projection();
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} else if (!authority.compare("OGC", Qt::CaseInsensitive)) {
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if (code == "CRS84")
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return Projection(GCS::gcs(4326), CoordinateSystem::XY);
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else
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return Projection();
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} else
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return Projection();
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}
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Projection CRS::projection(int id)
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{
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PCS pcs(PCS::pcs(id));
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if (!pcs.isNull())
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return Projection(pcs);
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GCS gcs(GCS::gcs(id));
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if (!gcs.isNull())
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return Projection(gcs);
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return Projection();
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}
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