71 lines
1.5 KiB
C++
71 lines
1.5 KiB
C++
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#include <mitsuba/core/aabb.h>
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MTS_NAMESPACE_BEGIN
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Point AABB::getCorner(uint8_t corner) const {
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return Point(corner & 1 ? max.x : min.x,
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corner & 2 ? max.y : min.y,
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corner & 4 ? max.z : min.z);
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}
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Point AABB::getMidPoint() const {
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return Point(
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min.x + max.x,
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min.y + max.y,
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min.z + max.z
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) * 0.5f;
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}
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bool AABB::contains(const Point &vec) const {
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return isValid() &&
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(vec.x >= min.x && vec.x <= max.x) &&
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(vec.y >= min.y && vec.y <= max.y) &&
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(vec.z >= min.z && vec.z <= max.z);
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}
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void AABB::expandBy(const Point &vec) {
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min.x = std::min(min.x, vec.x);
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min.y = std::min(min.y, vec.y);
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min.z = std::min(min.z, vec.z);
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max.x = std::max(max.x, vec.x);
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max.y = std::max(max.y, vec.y);
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max.z = std::max(max.z, vec.z);
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}
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void AABB::expandBy(const AABB &aabb) {
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min.x = std::min(min.x, aabb.min.x);
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min.y = std::min(min.y, aabb.min.y);
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min.z = std::min(min.z, aabb.min.z);
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max.x = std::max(max.x, aabb.max.x);
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max.y = std::max(max.y, aabb.max.y);
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max.z = std::max(max.z, aabb.max.z);
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}
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Float AABB::distanceTo(const Point &p) const {
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Float result = 0;
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for (int i=0; i<3; ++i) {
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Float value = 0;
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if (p[i] < min[i])
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value = min[i] - p[i];
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if (p[i] > max[i])
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value = p[i] - max[i];
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result += value*value;
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}
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return std::sqrt(result);
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}
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std::string AABB::toString() const {
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std::ostringstream oss;
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oss << "AABB[";
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if (!isValid()) {
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oss << "invalid";
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} else {
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oss << "min=" << min.toString()
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<< ", max=" << max.toString();
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}
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oss << "]";
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return oss.str();
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}
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MTS_NAMESPACE_END
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