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Make the DEM data borders look much better

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This commit is contained in:
Martin Tůma 2024-05-21 20:59:06 +02:00
parent da2b6661f6
commit 27401d58b7
1 changed files with 21 additions and 6 deletions
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27
src/map/filter.cpp
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@ -99,16 +99,31 @@ MatrixD Filter::blur(const MatrixD &m, int radius)
{
MatrixD src(m);
MatrixD dst(m.h(), m.w());
double sum = 0;
int cnt = 0;
for (int i = 0; i < m.size(); i++)
if (std::isnan(m.at(i)))
src.at(i) = -500;
for (int i = 0; i < m.size(); i++) {
if (!std::isnan(m.at(i))) {
sum += m.at(i);
cnt++;
}
}
if (cnt != m.size()) {
double avg = sum / cnt;
for (int i = 0; i < m.size(); i++)
if (std::isnan(m.at(i)))
src.at(i) = avg;
}
gaussBlur4(src, dst, radius);
for (int i = 0; i < dst.size(); i++)
if (std::isnan(m.at(i)))
dst.at(i) = NAN;
if (cnt != m.size()) {
for (int i = 0; i < dst.size(); i++)
if (std::isnan(m.at(i)))
dst.at(i) = NAN;
}
return dst;
}