Method setRectangularGrid

src/fl/math/xymap.cpp.hpp:110–114

}

void XYMap::setRectangularGrid() {
    type = kLineByLine;
    xyFunction = nullptr;
    mLookUpTable.reset();
}

u16 XYMap::mapToIndex(const u16 &x, const u16 &y) const {
    u16 index;