Howard,
I've run into a problem trying to read a billion-point LAS file to test
the index. It looks like I run out of memory in the
CachedReaderImpl::m_mask while it is adding vector members trying to
reach the number of points in the file. It's in the loop on line 88 of
cachedreader.cpp.
Is there a way to override point cacheing or will I just hit a similar
wall somewhere else if I do? I wonder if it wouldn't be faster and take
less memory to resize that array once and then set the values in a loop.
Having to realloc that array and copy repeatedly as it gets larger might
not be a good way to go. I'm stalling after adding 689 million array
elements. It seems to take a long time to hit that error and is probably
taking twice the memory it needs to.
I made the change here and like I thought, much faster and I don't hit
my memory limit. this would seem to be a way to speed up the reading of
any large LAS file if you want me to check it in so you can look at it.
-Gary
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