去除给定高度阈值的点云包围框的c++算法
时间: 2024-02-13 10:05:52 浏览: 104
下面是一个简单的去除给定高度阈值的点云包围框的 C++ 算法:
```cpp
#include <iostream>
#include <vector>
struct Point {
double x, y, z;
};
void removePoints(std::vector<Point>& points, double threshold) {
double minZ = DBL_MAX, maxZ = DBL_MIN;
for (const auto& p : points) {
if (p.z < minZ) {
minZ = p.z;
}
if (p.z > maxZ) {
maxZ = p.z;
}
}
double height = maxZ - minZ;
if (height > threshold) {
std::vector<Point> newPoints;
for (const auto& p : points) {
if (p.z < maxZ - threshold) {
newPoints.push_back(p);
}
}
points = std::move(newPoints);
}
}
int main() {
std::vector<Point> points = {{0, 0, 0}, {1, 2, 3}, {2, 3, 4}, {3, 4, 5}};
removePoints(points, 1);
for (const auto& p : points) {
std::cout << p.x << ", " << p.y << ", " << p.z << std::endl;
}
return 0;
}
```
该算法首先计算点云中最低点和最高点的高度差,如果该高度差大于给定的阈值,则移除高度大于最高点减去阈值的点。具体来说,算法首先遍历所有点,找到最低点和最高点的高度值。然后计算高度差,如果高度差大于阈值,则遍历所有点并移除高度大于最高点减去阈值的点。最后返回移除点之后的点云。
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