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Hi @fazanham , recently I work on extracting ground from some city scene ply. And your code help me a lot, that's a wonderful work! But I have two questions that puzzle me for some time.
in TerrainFilter.cppline 57 and line 92, I want to know why does the code calculate the convex hull before rasterization, and then determine whether each point is in the convex hull. I think convex hull is calculating by these points, so every point should in the convex hull?
Still in TerrainFilter.cppline176, in double loop(i, j), rasterize is stored by that j is the row index, i is the column index, while other 2d arrays is stored by reversal ways. I wonder if some knowledge is behind the storing way?
Hope to get your reply soon:)
The text was updated successfully, but these errors were encountered:
Hi @fazanham , recently I work on extracting ground from some city scene ply. And your code help me a lot, that's a wonderful work! But I have two questions that puzzle me for some time.
TerrainFilter.cpp
line 57
andline 92
, I want to know why does the code calculate theconvex hull
beforerasterization
, and then determine whether each point is in the convex hull. I think convex hull is calculating by these points, so every point should in the convex hull?TerrainFilter.cpp
line176
, in double loop(i, j)
, rasterize is stored by thatj
is therow index
,i
is thecolumn index
, while other 2d arrays is stored by reversal ways. I wonder if some knowledge is behind the storing way?Hope to get your reply soon:)
The text was updated successfully, but these errors were encountered: