b9c7e1bdd9
While here, do not interpolate style properties that are not transitionable. The previous behavior was to switch from old to new value halfway through the transition; now the new value is used immediately, as in JS.
26 lines
519 B
C++
26 lines
519 B
C++
#ifndef MBGL_UTIL_INTERPOLATE
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#define MBGL_UTIL_INTERPOLATE
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namespace mbgl {
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namespace util {
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template <typename T>
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T interpolate(const T a, const T b, const double t) {
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return a * (1.0 - t) + b * t;
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}
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template <typename T>
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inline std::array<T, 4> interpolate(const std::array<T, 4>& a, const std::array<T, 4>& b, const double t) {
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return {{
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interpolate(a[0], b[0], t),
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interpolate(a[1], b[1], t),
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interpolate(a[2], b[2], t),
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interpolate(a[3], b[3], t)
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}};
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}
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}
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}
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#endif
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