Thanks Chaitanya,
I modified as your suggestion. But, still got the error (GEOS support not
enable) when executing the program.
About building GEOS, if I only add two first lines, the process will be
sucessful:
1. GEOS_DIR = C:/geos-3.3.5
2. GEOS_LIB = $(GEOS_DIR)/src/geos_c_i.lib
if I add
Tai,
Geos code is not enabled in GDAL without the third line you omitted.
Check the compilation messages to identify the problem.
Perform a 'clean' before you build until this problem is resolved.
On Tue, Jul 24, 2012 at 12:48 PM, taibc taibc_colt...@yahoo.com wrote:
Thanks Chaitanya,
I
Thanks chaitanya,
I resolved the errors by downloading GEO-3.2.3 (arrangement of folders in
geo-3.2.3 is different from geo-3.3.5), re-build geo and gdal.
Kind regards,
Tai
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Thanks Chaitanya,
I reported the error there. And waiting for answers.
Kind regards,
Tai
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http://osgeo-org.1560.n6.nabble.com/How-to-identify-a-point-is-belong-to-a-polygon-tp4989501p4989973.html
Sent from the GDAL - Dev mailing list archive at Nabble.com.
chaitanya_ch wrote
Tai,
GDAL needs GEOS to perform these geometry functions. Make sure you install
that.
On Sat, Jul 21, 2012 at 12:19 PM, taibc lt;taibc_coltech@gt; wrote:
Hi Chaitanya,
I installed GEOS succesfful, and copy file geos.dll into my project. But I
still got the
On 23 July 2012 11:52, taibc taibc_colt...@yahoo.com wrote:
I installed GEOS succesfful, and copy file geos.dll into my project. But I
still got the error: GEOS support not enable when using the method
Within
Are there something wrongs ?
You need to edit nmake.opt and rebuild GDAL.
Check
Thanks Mateusz,
I edited the nmake.opt by adding below lines:
GEOS_DIR = C:/geos-3.3.5
GEOS_LIB = $(GEOS_DIR)/src/geos_c_i.lib
GEOS_CFLAGS = -I$(GEOS_DIR)/capi -I$(GEOS_DIR)/include/geos -DHAVE_GEOS
Then, I rebuilt GDAL, but still got the error: GEOS support not enable.
Kind regards,
Tai
Tai,
If your rebuild was successful with geos, the only reason for you to get
the error is that the application is accessing the wrong libraries
somewhere in your system. Do a clean rebuild and make sure the
LD_LIBRARY_PATH and GDAL_DATA are set correctly.
On Tue, Jul 24, 2012 at 7:37 AM, taibc
Thanks Chaitanya,
I haven't set LD_LIBRARY_PATH and GDAL_DATA yet.
Do you know how to set them on Visual C++ 2010 ?
Kind regards,
Tai
From: chaitanya_ch [via OSGeo.org] ml-node+s1560n499024...@n6.nabble.com
To: taibc taibc_colt...@yahoo.com
Sent: Tuesday,
Tai,
The environment variables can be set at the command prompt temporarily
using
SET LD_LIBRARY_PATH=C:\path\to\gdal\libraries
SET GDAL_DATA=C:\path\to\gdal\libraries\data
You can set them in the project settings in VC++. I don't know how.
You can also set them system wide at
Hi Chaitanya,
I still can't run the method Geometry::Within. And I got the error: GEOS
support not enable when trying use this method.
Please find the attached file for sample code.
http://osgeo-org.1560.n6.nabble.com/file/n4989766/Source1.cpp Source1.cpp
About spatial filter, you said that:
Tai,
GDAL needs GEOS to perform these geometry functions. Make sure you install
that.
On Sat, Jul 21, 2012 at 12:19 PM, taibc taibc_colt...@yahoo.com wrote:
Hi Chaitanya,
I still can't run the method Geometry::Within. And I got the error: GEOS
support not enable when trying use this method.
Thanks Chaitanya,
I tried to install GEOS on Window.
But I got below error: NMAKE fatal error U1077 return code '0x2'
Detail is:
algorithm\LineIntersector.cpp(671) : error C3861: 'isnan': identifier not
found
algorithm\LineIntersector.cpp(672) : error C3861: 'isnan': identifier not
found
Tai,
Pease refer to http://trac.osgeo.org/geos/
On Sat, Jul 21, 2012 at 2:06 PM, taibc taibc_colt...@yahoo.com wrote:
Thanks Chaitanya,
I tried to install GEOS on Window.
But I got below error: NMAKE fatal error U1077 return code '0x2'
Detail is:
algorithm\LineIntersector.cpp(671)
Tai,
You can use the spatial filter of the ogr layer to filter the point
features to speed things up. You will still have to test if the point is
within the polygon but it will be faster.
Also, make sure the test is like point-Within(polygon) and not
polygon-Within(point)
Hi everyone,
Do you know how to identify whether a point (OGRPoint) is belong to a
polygon (OGRPolygon) ? (the polygon covers the point)
Thanks and regards,
Tai
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http://osgeo-org.1560.n6.nabble.com/How-to-identify-a-point-is-belong-to-a-polygon-tp4989501.html
Tai,
You can use OGR_G_Within()
OGR_G_WIthin(point,polygon) will return true if the point is within the
polygon.
You can access various other geometry functions from the OGRGeometry class.
http://www.gdal.org/ogr/ogr__api_8h.html#a80ba9e516ccae381ae7240cc9684eb72
On Fri, Jul 20, 2012 at 7:04
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