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edited another way of using eclipse using cmake

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Gary Bradski 2011-07-21 01:03:41 +00:00
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doc/tutorials/introduction/linux_eclipse/linux_eclipse.rst
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@ -4,7 +4,7 @@ Using OpenCV with Eclipse (plugin CDT)
****************************************
.. note::
For me at least, this works, is simple and quick. Suggestions are welcome
Two ways, one by forming a project directly, and another by CMake
Prerequisites
===============
@ -195,4 +195,64 @@ Assuming that the image to use as the argument would be located in <DisplayImage
:alt: Eclipse Tutorial Screenshot 15
:align: center
#. Congratulations! You are ready to have fun with OpenCV using Eclipse.
#. Congratulations! You are ready to have fun with OpenCV using Eclipse.
==================================================
V2: Using CMake+OpenCV with Eclipse (plugin CDT)
==================================================
(See the `getting started <http://opencv.willowgarage.com/wiki/Getting_started>` section of the OpenCV Wiki)
Say you have or create a new file, *helloworld.cpp* in a directory called *foo*:
.. code-block:: bash
#include <cv.h>
#include <highgui.h>
int main ( int argc, char **argv )
{
cvNamedWindow( "My Window", 1 );
IplImage *img = cvCreateImage( cvSize( 640, 480 ), IPL_DEPTH_8U, 1 );
CvFont font;
double hScale = 1.0;
double vScale = 1.0;
int lineWidth = 1;
cvInitFont( &font, CV_FONT_HERSHEY_SIMPLEX | CV_FONT_ITALIC,
hScale, vScale, 0, lineWidth );
cvPutText( img, "Hello World!", cvPoint( 200, 400 ), &font,
cvScalar( 255, 255, 0 ) );
cvShowImage( "My Window", img );
cvWaitKey();
return 0;
}
1. Create a build directory, say, under *foo*: ``mkdir /build``. Then ``cd build``.
#. Put a *CmakeLists.txt* file in build:
.. cod-block:: bash
PROJECT( helloworld_proj )
FIND_PACKAGE( OpenCV REQUIRED )
ADD_EXECUTABLE( helloworld helloworld.cxx )
TARGET_LINK_LIBRARIES( helloworld ${OpenCV_LIBS} )
#. Run: ``cmake-gui ..`` and make sure you fill in where opencv was built.
#. Then click ``configure`` and then ``generate``. If it's OK, **quit cmake-gui**
#. Run ``make -j4`` *(the ``-j4`` is optional, it just tells the compiler to build in 4 threads)*. Make sure it builds.
#. Start ``eclipse``. Put the workspace in some directory but **not** in ``foo`` or ``foo\\build``
#. Right click in the ``Project Explorer`` section. Select ``Import`` And then open the ``C/C++`` filter. Choose *Existing Code as a Makefile Project``
#. Name your project, say *helloworld*. Browse to the Existing Code location ``foo\\build`` (where you ran your cmake-gui from). Select *Linux GCC* in the *"Toolchain for Indexer Settings"* and press *Finish*.
#. Right click in the ``Project Explorer`` section. Select ``Properties``. Under ``C/C++ Build``, set the *build directory:* from something like ``${workspace_loc:/helloworld}`` to ``${workspace_loc:/helloworld}/build`` since that's where you are building to.
a. You can also optionally modify the ``Build command:`` from ``make`` to something like ``make VERBOSE=1 -j4`` which tells the compiler to produce detailed symbol files for debugging and also to compile in 4 parallel threads.
#. Done!