Method isRectangularGrid

src/fl/math/xymap.h:114–114

    bool isFunction() const FL_NOEXCEPT { return type == kFunction; }
    bool isLUT() const FL_NOEXCEPT { return type == kLookUpTable; }
    bool isRectangularGrid() const FL_NOEXCEPT { return type == kLineByLine; }
    bool isSerpentineOrLineByLine() const FL_NOEXCEPT {
        return type == kSerpentine || type == kLineByLine;
    }