Hi;
I am trying to build and install the GDAL library on Windows XP
using the following commands:
nmake /f makefile.vc
nmake /f makefile.vc install
nmake /f makefile.vc devinstall
In order to build with GEOS support, I uncommented the lines
in the "nmake.opt" as follows:
GEOS_DIR=C:\geos-3.1.1
GEOS_CFLAGS = -I$(GEOS_DIR)/capi -I$(GEOS_DIR)/source/headers -DHAVE_GEOS
GEOS_LIB = $(GEOS_DIR)/source/geos_c_i.lib
However, I still get the same .dll and .lib files as if no GEOS
support was turned on
(the sizes are exactly the same). When I try to call
"OGRGeometry::Contains()" method,
I also get the error:
"ERROR 6: GEOS support not enabled."
What could be wrong?
2) I was also wondering whether OGR library provides a kind of nearest
neighbour finding facilities?
If not, does anybody know any library that could be integrated with
OGR for this purpose?
I plan to use it to find the n nearest sounding points (SOUNDG)
given a point, to make a prediction
about its depth.
3) Finally, is there any facility in OGR for querying a layer such that
it will only return the features on it, which contain a given
point as parameter?
Because I could not come up with an SQL statement to perform this task.
Actually I was planning to use this on the DEPARE (depth area) layer on
an S-57 file to find the depth area polygon that covers the given point.
Any idea or references about these issues would greatly be appreciated.
Best regards,
Yilmaz
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