Re: [gdal-dev] ogr shapefile viewer
On 06/01/11 16:53, Mohammed Rashad wrote: Anyone plea se provide a source code of just a simple shapefile viewer in C/C++ or python http://www.codeproject.com/KB/openGL/RenderSHP.aspx Best regards, -- Mateusz Loskot, http://mateusz.loskot.net Charter Member of OSGeo, http://osgeo.org Member of ACCU, http://accu.org ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
Re: [gdal-dev] ogr shapefile viewer
i checked it. Its not working properly and uses openGL On Thu, Jan 6, 2011 at 10:31 PM, Mateusz Loskot mate...@loskot.net wrote: On 06/01/11 16:53, Mohammed Rashad wrote: Anyone plea se provide a source code of just a simple shapefile viewer in C/C++ or python http://www.codeproject.com/KB/openGL/RenderSHP.aspx Best regards, -- Mateusz Loskot, http://mateusz.loskot.net Charter Member of OSGeo, http://osgeo.org Member of ACCU, http://accu.org -- Rashad ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
Re: [gdal-dev] ogr shapefile viewer
On 06/01/11 16:58, Mohammed Rashad wrote: i checked it. Its not working properly and uses openGL You didn't mention it can not be based on OpenGL or any other rendering API. No idea what you mean not working properly, The code provides good example on how to read vectors from Shapefile and pass to renderer. Just translate it to your renderer, Windows GDI, GTK+, whatever. If you want to use OGR, but not Shapelib, learn from OGR tutorial and do the same thing. Best regards, -- Mateusz Loskot, http://mateusz.loskot.net Charter Member of OSGeo, http://osgeo.org Member of ACCU, http://accu.org ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
Re: [gdal-dev] ogr shapefile viewer
On Thu, Jan 6, 2011 at 10:45 PM, Mateusz Loskot mate...@loskot.net wrote: On 06/01/11 17:06, Mohammed Rashad wrote: when the window resize the size of shapefile is also changed. by not working I mean its not displaying shapefile correctly. This is a very simple example, it does not have to handle all UI events, react on windows resize, etc. I can't believe size of Shapefile does change. It can't change as it's a file on disk, so unless you edit vectors in file, its size never changes. You probably mean size of vectors displayed. Again, it's simple example, loads Shapefile, creates a window, draws vectors from Shapefile in this window. That's it. You wanted simple, this is simple. can you point me to some other example with any api OpenGL also no problem Just google, there is plenty. Instead of looking for code, I'd rather suggest to sit down and think what you need. I assure you, all you need you have in OGR tutorial on gdal.org/ogr website. The only thing you need more is to pass vector data/point to rendering API you want to use. yes Mateusz Loskot, i need this part. passing the vector data/point to a rendering API. Anyone can provide a simple example other than http://www.codeproject.com/KB/openGL/RenderSHP.aspx p.s. please, do not reply privately to folks from mailing lists, reply to mailing list. Best regards, -- Mateusz Loskot, http://mateusz.loskot.net Charter Member of OSGeo, http://osgeo.org Member of ACCU, http://accu.org -- Rashad ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
Re: [gdal-dev] ogr shapefile viewer
On 1/6/11 9:19 AM, Mohammed Rashad wrote: Instead of looking for code, I'd rather suggest to sit down and think what you need. I assure you, all you need you have in OGR tutorial on gdal.org/ogr http://gdal.org/ogr website. The only thing you need more is to pass vector data/point to rendering API you want to use. yes Mateusz Loskot, i need this part. passing the vector data/point to a rendering API. It's still not clear quite what you want. If you just want to look at shape files, I'd use an off-the-shelf desktop GIS, there are lots, QGIS is pretty nice. You can also render shapefiles with mapnik or mapserver -- both are highly customizable and produce very nice output. If you want a library you can embed in your own app, and maybe customize, that's a different story. For Python you could use wxPython and my wx.lib.floatcanvas. It doesn't understand shape files, but with OGR reading them, it's very easy to throw points, lines and polygons on the canvas, and be able to zoom and pan around to look at them. We've also got the maproom project: https://bitbucket.org/dhelfman/maproom/overview It's a bit stalled out now, but will be revived. It is designed to be a general purpose lib and application for interactive map data viewing and manipulation. It doesn't actually support shape files at the moment, but it does use GDAL/OGR and has support for points and polygons, so not hard to write a new plugin for shape. It's also using OpenGL for speedy rendering. HTH, -Chris -- Christopher Barker, Ph.D. Oceanographer Emergency Response Division NOAA/NOS/ORR(206) 526-6959 voice 7600 Sand Point Way NE (206) 526-6329 fax Seattle, WA 98115 (206) 526-6317 main reception chris.bar...@noaa.gov ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
Re: [gdal-dev] ogr shapefile viewer
Rashad, I assume you are looking for a simple viewer for non-changing shapefiles. You can use the GDAL library and the code from the gdal_rasterize utility. On Thu, Jan 6, 2011 at 11:17 PM, Mohammed Rashad mohammedrasha...@gmail.com wrote: On Thu, Jan 6, 2011 at 11:09 PM, Christopher Barker chris.bar...@noaa.gov wrote: On 1/6/11 9:19 AM, Mohammed Rashad wrote: Instead of looking for code, I'd rather suggest to sit down and think what you need. I assure you, all you need you have in OGR tutorial on gdal.org/ogr http://gdal.org/ogr website. The only thing you need more is to pass vector data/point to rendering API you want to use. yes Mateusz Loskot, i need this part. passing the vector data/point to a rendering API. It's still not clear quite what you want. If you just want to look at shape files, I'd use an off-the-shelf desktop GIS, there are lots, QGIS is pretty nice. You can also render shapefiles with mapnik or mapserver -- both are highly customizable and produce very nice output. If you want a library you can embed in your own app, and maybe customize, that's a different story. I need a c++ library to just display an OGR shapefile. i need to embed this C++ library in my application that what I need. Is that clear? If you need any further details i will provide. For Python you could use wxPython and my wx.lib.floatcanvas. It doesn't understand shape files, but with OGR reading them, it's very easy to throw points, lines and polygons on the canvas, and be able to zoom and pan around to look at them. We've also got the maproom project: https://bitbucket.org/dhelfman/maproom/overview It's a bit stalled out now, but will be revived. It is designed to be a general purpose lib and application for interactive map data viewing and manipulation. It doesn't actually support shape files at the moment, but it does use GDAL/OGR and has support for points and polygons, so not hard to write a new plugin for shape. It's also using OpenGL for speedy rendering. HTH, -Chris -- Christopher Barker, Ph.D. Oceanographer Emergency Response Division NOAA/NOS/ORR(206) 526-6959 voice 7600 Sand Point Way NE (206) 526-6329 fax Seattle, WA 98115 (206) 526-6317 main reception chris.bar...@noaa.gov -- Rashad ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev -- Best regards, Chaitanya kumar CH. /tʃaɪθənjə/ /kʊmɑr/ +91-9494447584 17.2416N 80.1426E ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
