seamless::anonymous_namespace{Projected.cpp} Namespace Reference

Functions
TileKey	makeTileKey (const Projected *ps, const ProjectedOptions *pjoptions)
HeightField *	resampleHeightField (HeightField *hf, unsigned newDim)

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Function Documentation

TileKey seamless::anonymous_namespace{Projected.cpp}::makeTileKey	(	const Projected *	ps,
		const ProjectedOptions *	pjoptions
	)

Definition at line 64 of file Projected.cpp.

{
    Vec2d ll, ur;
    pjoptions->getPatchExtents(ll, ur);
    double levelFactor = pow(2.0, pjoptions->getPatchLevel());
    int x = static_cast<int>(ll.x() * levelFactor);
    int y = static_cast<int>(ll.y() * levelFactor);
    return TileKey(pjoptions->getPatchLevel(), x, y,
                   ps->getMap()->getProfile());
}

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HeightField* seamless::anonymous_namespace{Projected.cpp}::resampleHeightField	(	HeightField *	hf,
		unsigned	newDim
	)

Definition at line 75 of file Projected.cpp.

{
    const unsigned nCols = hf->getNumColumns();
    const unsigned nRows = hf->getNumRows();
    if (nCols == newDim && nRows == newDim)
        return hf;
    HeightField* result = new HeightField;
    result->allocate(newDim, newDim);
    result->setOrigin(hf->getOrigin());
    result->setXInterval(hf->getXInterval() * static_cast<float>(nCols)
                         / static_cast<float>(newDim));
    result->setYInterval(hf->getYInterval() * static_cast<float>(nRows)
                         / static_cast<float>(newDim));
    for (unsigned r = 0; r < newDim; ++r)
    {
        for (unsigned c = 0; c < newDim; ++c)
        {
            float height
                = HeightFieldUtils::getHeightAtNormalizedLocation(
                    hf, static_cast<double>(c) / (newDim - 1),
                    static_cast<double>(r) / (newDim - 1), INTERP_BILINEAR);
            result->setHeight(c, r, height);
        }
    }
    return result;
}
}

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