RE: [Qgis-developer] Integrating OSSIM with QGIS
Hi Mingjie, a quick and easy way to make your code available for community review would be to create a fork of qgis on github and then create a branch on this fork. This way it will be easier for you to keep it in sync with master and for the devs to have a look and pull your changes. On Thu, 23 Jun 2011 16:54:23 -0400, Mingjie Su wrote: Hi Tim, We already installed GIT and checked out the master code. We also created a branch on my machine, I am wondering if I need to get permission from you to push our branch over to community. Thanks, Ming -Original Message- From: Mingjie Su Sent: Wednesday, June 22, 2011 9:37 AM To: 'Tim Sutton' Cc: Alexander Bruy; qgis-developer@lists.osgeo.org; 'Peter Borissow'; qgis-os...@lists.sourceforge.net; Harsh Govind Subject: RE: [Qgis-developer] Integrating OSSIM with QGIS Thanks a lot, Tim. I will take a look at Coding document and follow the rules. Ming -Original Message- From: Tim Sutton [mailto:li...@linfiniti.com] Sent: Tuesday, June 21, 2011 8:04 PM To: Mingjie Su Cc: Alexander Bruy; qgis-developer@lists.osgeo.org; Peter Borissow; qgis-os...@lists.sourceforge.net; Harsh Govind Subject: Re: [Qgis-developer] Integrating OSSIM with QGIS On Tue, Jun 21, 2011 at 6:21 PM, Mingjie Su su.m...@geoeye.com wrote: Hi Tim, Attached is our source code. Please let us know your suggestions. I received it thanks. I am busy building now. Could I point you to the CODING document in the top level of master https://github.com/qgis/Quantum-GIS/blob/master/CODING Section 2.7 explains the 'nice' way to share patches etc. Your changes are out of date with master and as they are not in a patch, they remove various changes that have been made upstream. Basically if you follow our guidelines of submitting patches (or creating a fork on github), it makes it much easier to evaluate your changes. I got some an error when running cmake: CMake Error at src/app/CMakeLists.txt:407 (ADD_EXECUTABLE): Cannot find source file qgsnewvectorlayerdialog.cpp. Tried extensions .c .C .c++ .cc .cpp .cxx .m .M .mm .h .hh .h++ .hm .hpp .hxx .in .txx I had a quick look at your settings class QgisAppSettings and as Alex suggests, it would be much better to use the QgsOptions and / or QSettings to manage this (or even QgsProject if you want to store the setting per-project). I'm going to be travelling the next few days, but I will try to test any updated patches you make available. Best regards Thanks, Ming -Original Message- From: Tim Sutton [mailto:li...@linfiniti.com] Sent: Tuesday, June 21, 2011 4:36 AM To: Alexander Bruy Cc: Mingjie Su; qgis-developer@lists.osgeo.org; Peter Borissow; qgis-os...@lists.sourceforge.net; Harsh Govind Subject: Re: [Qgis-developer] Integrating OSSIM with QGIS Hi On Tue, Jun 21, 2011 at 7:58 AM, Alexander Bruy alexander.b...@gmail.com wrote: Hi, 2011/6/20 Mingjie Su su.m...@geoeye.com: 1) Since QGIS is hard coded to use the GDAL provider, we added the QgisAppSettings class to load the global settings (which is a plain text file with key/value pair) to select provider. maybe I miss something in discussion but is this new class (QgisAppSettings) is neccessary and why not use QSettings for this? There is a qgsoptions.h/cpp files to read and write QGIS setting You are probably correct though its hard to discuss it without seeing the code yet. Regards Tim -- Alexander Bruy -- Tim Sutton - QGIS Project Steering Committee Member (Release Manager) == Please do not email me off-list with technical support questions. Using the lists will gain more exposure for your issues and the knowledge surrounding your issue will be shared with all. Visit http://linfiniti.com to find out about: * QGIS programming and support services * Mapserver and PostGIS based hosting plans * FOSS Consulting Services Skype: timlinux Irc: timlinux on #qgis at freenode.net == -- Tim Sutton - QGIS Project Steering Committee Member (Release Manager) == Please do not email me off-list with technical support questions. Using the lists will gain more exposure for your issues and the knowledge surrounding your issue will be shared with all. Visit http://linfiniti.com to find out about: * QGIS programming and support services * Mapserver and PostGIS based hosting plans * FOSS Consulting Services Skype: timlinux Irc: timlinux on #qgis at freenode.net == ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
RE: [Qgis-developer] Integrating OSSIM with QGIS
Thanks a lot, Tim. I will take a look at Coding document and follow the rules. Ming -Original Message- From: Tim Sutton [mailto:li...@linfiniti.com] Sent: Tuesday, June 21, 2011 8:04 PM To: Mingjie Su Cc: Alexander Bruy; qgis-developer@lists.osgeo.org; Peter Borissow; qgis-os...@lists.sourceforge.net; Harsh Govind Subject: Re: [Qgis-developer] Integrating OSSIM with QGIS On Tue, Jun 21, 2011 at 6:21 PM, Mingjie Su su.m...@geoeye.com wrote: Hi Tim, Attached is our source code. Please let us know your suggestions. I received it thanks. I am busy building now. Could I point you to the CODING document in the top level of master https://github.com/qgis/Quantum-GIS/blob/master/CODING Section 2.7 explains the 'nice' way to share patches etc. Your changes are out of date with master and as they are not in a patch, they remove various changes that have been made upstream. Basically if you follow our guidelines of submitting patches (or creating a fork on github), it makes it much easier to evaluate your changes. I got some an error when running cmake: CMake Error at src/app/CMakeLists.txt:407 (ADD_EXECUTABLE): Cannot find source file qgsnewvectorlayerdialog.cpp. Tried extensions .c .C .c++ .cc .cpp .cxx .m .M .mm .h .hh .h++ .hm .hpp .hxx .in .txx I had a quick look at your settings class QgisAppSettings and as Alex suggests, it would be much better to use the QgsOptions and / or QSettings to manage this (or even QgsProject if you want to store the setting per-project). I'm going to be travelling the next few days, but I will try to test any updated patches you make available. Best regards Thanks, Ming -Original Message- From: Tim Sutton [mailto:li...@linfiniti.com] Sent: Tuesday, June 21, 2011 4:36 AM To: Alexander Bruy Cc: Mingjie Su; qgis-developer@lists.osgeo.org; Peter Borissow; qgis-os...@lists.sourceforge.net; Harsh Govind Subject: Re: [Qgis-developer] Integrating OSSIM with QGIS Hi On Tue, Jun 21, 2011 at 7:58 AM, Alexander Bruy alexander.b...@gmail.com wrote: Hi, 2011/6/20 Mingjie Su su.m...@geoeye.com: 1) Since QGIS is hard coded to use the GDAL provider, we added the QgisAppSettings class to load the global settings (which is a plain text file with key/value pair) to select provider. maybe I miss something in discussion but is this new class (QgisAppSettings) is neccessary and why not use QSettings for this? There is a qgsoptions.h/cpp files to read and write QGIS setting You are probably correct though its hard to discuss it without seeing the code yet. Regards Tim -- Alexander Bruy -- Tim Sutton - QGIS Project Steering Committee Member (Release Manager) == Please do not email me off-list with technical support questions. Using the lists will gain more exposure for your issues and the knowledge surrounding your issue will be shared with all. Visit http://linfiniti.com to find out about: * QGIS programming and support services * Mapserver and PostGIS based hosting plans * FOSS Consulting Services Skype: timlinux Irc: timlinux on #qgis at freenode.net == -- Tim Sutton - QGIS Project Steering Committee Member (Release Manager) == Please do not email me off-list with technical support questions. Using the lists will gain more exposure for your issues and the knowledge surrounding your issue will be shared with all. Visit http://linfiniti.com to find out about: * QGIS programming and support services * Mapserver and PostGIS based hosting plans * FOSS Consulting Services Skype: timlinux Irc: timlinux on #qgis at freenode.net == ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] Integrating OSSIM with QGIS
Hi On Tue, Jun 21, 2011 at 7:58 AM, Alexander Bruy alexander.b...@gmail.com wrote: Hi, 2011/6/20 Mingjie Su su.m...@geoeye.com: 1) Since QGIS is hard coded to use the GDAL provider, we added the QgisAppSettings class to load the global settings (which is a plain text file with key/value pair) to select provider. maybe I miss something in discussion but is this new class (QgisAppSettings) is neccessary and why not use QSettings for this? There is a qgsoptions.h/cpp files to read and write QGIS setting You are probably correct though its hard to discuss it without seeing the code yet. Regards Tim -- Alexander Bruy -- Tim Sutton - QGIS Project Steering Committee Member (Release Manager) == Please do not email me off-list with technical support questions. Using the lists will gain more exposure for your issues and the knowledge surrounding your issue will be shared with all. Visit http://linfiniti.com to find out about: * QGIS programming and support services * Mapserver and PostGIS based hosting plans * FOSS Consulting Services Skype: timlinux Irc: timlinux on #qgis at freenode.net == ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] Integrating OSSIM with QGIS
On Tue, Jun 21, 2011 at 6:21 PM, Mingjie Su su.m...@geoeye.com wrote: Hi Tim, Attached is our source code. Please let us know your suggestions. I received it thanks. I am busy building now. Could I point you to the CODING document in the top level of master https://github.com/qgis/Quantum-GIS/blob/master/CODING Section 2.7 explains the 'nice' way to share patches etc. Your changes are out of date with master and as they are not in a patch, they remove various changes that have been made upstream. Basically if you follow our guidelines of submitting patches (or creating a fork on github), it makes it much easier to evaluate your changes. I got some an error when running cmake: CMake Error at src/app/CMakeLists.txt:407 (ADD_EXECUTABLE): Cannot find source file qgsnewvectorlayerdialog.cpp. Tried extensions .c .C .c++ .cc .cpp .cxx .m .M .mm .h .hh .h++ .hm .hpp .hxx .in .txx I had a quick look at your settings class QgisAppSettings and as Alex suggests, it would be much better to use the QgsOptions and / or QSettings to manage this (or even QgsProject if you want to store the setting per-project). I'm going to be travelling the next few days, but I will try to test any updated patches you make available. Best regards Thanks, Ming -Original Message- From: Tim Sutton [mailto:li...@linfiniti.com] Sent: Tuesday, June 21, 2011 4:36 AM To: Alexander Bruy Cc: Mingjie Su; qgis-developer@lists.osgeo.org; Peter Borissow; qgis-os...@lists.sourceforge.net; Harsh Govind Subject: Re: [Qgis-developer] Integrating OSSIM with QGIS Hi On Tue, Jun 21, 2011 at 7:58 AM, Alexander Bruy alexander.b...@gmail.com wrote: Hi, 2011/6/20 Mingjie Su su.m...@geoeye.com: 1) Since QGIS is hard coded to use the GDAL provider, we added the QgisAppSettings class to load the global settings (which is a plain text file with key/value pair) to select provider. maybe I miss something in discussion but is this new class (QgisAppSettings) is neccessary and why not use QSettings for this? There is a qgsoptions.h/cpp files to read and write QGIS setting You are probably correct though its hard to discuss it without seeing the code yet. Regards Tim -- Alexander Bruy -- Tim Sutton - QGIS Project Steering Committee Member (Release Manager) == Please do not email me off-list with technical support questions. Using the lists will gain more exposure for your issues and the knowledge surrounding your issue will be shared with all. Visit http://linfiniti.com to find out about: * QGIS programming and support services * Mapserver and PostGIS based hosting plans * FOSS Consulting Services Skype: timlinux Irc: timlinux on #qgis at freenode.net == -- Tim Sutton - QGIS Project Steering Committee Member (Release Manager) == Please do not email me off-list with technical support questions. Using the lists will gain more exposure for your issues and the knowledge surrounding your issue will be shared with all. Visit http://linfiniti.com to find out about: * QGIS programming and support services * Mapserver and PostGIS based hosting plans * FOSS Consulting Services Skype: timlinux Irc: timlinux on #qgis at freenode.net == ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
RE: [Qgis-developer] Integrating OSSIM with QGIS
Hi Tim, We are done ossim image provider and are ready to commit. 1) Since QGIS is hard coded to use the GDAL provider, we added the QgisAppSettings class to load the global settings (which is a plain text file with key/value pair) to select provider. 2) We also implemented the band statistics function in ossim provider, but the code requires the changes in the base class which is not part of 1.7.0 release. It will be nice if you can review the changes to the base class and let us know if we can commit our files with the band statistics function. Thanks, Ming -Original Message- From: Tim Sutton [mailto:li...@linfiniti.com] Sent: Thursday, June 09, 2011 11:23 AM To: Mingjie Su Cc: Peter Borissow; Pirmin Kalberer; qgis-developer@lists.osgeo.org; qgis-os...@lists.sourceforge.net; Harsh Govind Subject: Re: [Qgis-developer] Integrating OSSIM with QGIS Hi On Wed, Jun 8, 2011 at 9:21 PM, Mingjie Su su.m...@geoeye.com wrote: All- We are making some good progress on the ossim image provider (qgsossimprovider.cpp). Couple questions: (1) Is there a way for users to specify which provider to use? It looks like QGIS is hard coded to use the GDAL provider. (2) Band statistics. QGIS is pretty inefficient when it comes to computing band statistics. Its looping through all the pixels multiple times (once for each band) to populate the viewport. For RGB data for example, its looping through the data 3 times. In OSSIM, we can provide the band statistics for you so you don't have to scan the data. This will speed things up dramatically. BTW, this is true for both the GDAL and OSSIM providers. This is a known issue. I have a branch where I have been replacing the stats routines to use native stats from providers. You can clone it from here: https://github.com/timlinux/Quantum-GIS/tree/raster-stats Its still unstable but maybe you can see where I am heading with this. (3) Black pixels (0,0,0 RGB) are being flipped to transparent. Is there a way to override this behavior programatically? (4) In OSSIM we have a concept of image chains and connectable objects. You can wire up all kinds of filters and equations into a workflow to create an output image. The image chain can be represented using an array of key value pairs. Does the provider interface provide a mechanism for passing this type of information? Currently not, but its an addition that we would love to see. The OTB folks would appreciate this too. (5) Can we post our ossim image provider to your svn for others to play with? Since we are using GIT now, you can simply fork QGIS, apply your patches and invite others to test it out. I look forward to doing so myself. Regards Tim Thanks, Ming -Original Message- From: Peter Borissow Sent: Wednesday, May 25, 2011 4:08 PM To: Tim Sutton; Pirmin Kalberer Cc: qgis-developer@lists.osgeo.org; qgis-os...@lists.sourceforge.net; Mingjie Su; Harsh Govind Subject: RE: [Qgis-developer] Integrating OSSIM with QGIS Hi Tim- We are playing with 1.6. We'll download the 1.7 branch right away. I agree, use of gdal should be abstracted away into a gdal provider. Sounds like we would create an OSSIM provider. And yes, we want to create/execute OSSIM image chains directly in QGIS! Thanks, Peter -Original Message- From: Tim Sutton [mailto:li...@linfiniti.com] Sent: Wednesday, May 25, 2011 4:03 PM To: Pirmin Kalberer Cc: qgis-developer@lists.osgeo.org; Peter Borissow; qgis-os...@lists.sourceforge.net; Mingjie Su; Harsh Govind Subject: Re: [Qgis-developer] Integrating OSSIM with QGIS Hi Peter 8---snip-- We started our investigation late last week. We have a debug version of QGIS up and running in Visual Studio 10 (64 bit) using QT 4.7.3. We have since discovered how integral GDAL is to QGIS. Undaunted, we added a some temporary hacks to bypass GDAL and we're now getting images to display via OSSIM! For us, this is a huge first step and we are seriously considering pressing ahead. What version are you building against? Since the 1.7 branch and in current master branch, Radim Blazek has done a great overhaul to cater for proper raster providers. That means you should not find QGIS is heavily intertwined with GDAL - the use of gdal should be abstracted away into the gdal provider, and you should be able to implement ossim raster support as a clean separate provider. I would also really love to see OSSIM support in QGIS (and maybe some of those nice processing chains making their way into QGIS :-). Regards Tim 8---snip-- -- Tim Sutton - QGIS Project Steering Committee Member (Release Manager) == Please do not email me off-list with technical support questions. Using the lists will gain more exposure for your issues and the knowledge surrounding your issue will be shared
Re: [Qgis-developer] Integrating OSSIM with QGIS
Hi, 2011/6/20 Mingjie Su su.m...@geoeye.com: 1) Since QGIS is hard coded to use the GDAL provider, we added the QgisAppSettings class to load the global settings (which is a plain text file with key/value pair) to select provider. maybe I miss something in discussion but is this new class (QgisAppSettings) is neccessary and why not use QSettings for this? There is a qgsoptions.h/cpp files to read and write QGIS setting -- Alexander Bruy ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] Integrating OSSIM with QGIS
Hello (4) In OSSIM we have a concept of image chains and connectable objects. You can wire up all kinds of filters and equations into a workflow to create an output image. The image chain can be represented using an array of key value pairs. Does the provider interface provide a mechanism for passing this type of information? The concept of chains should be included in https://github.com/polymeris/qgis/wiki/QGIS-Processing-Framework in my opinion. So that chains can be created using data and tools from various providers and packages. Or at least, the framework should be designed so, that it will allow later addition of chains on some upper level. As a first step, it will be interesting to know how the independent ossim processing modules can fit into the processing framework which is currently being built. The OrfeoToolbox has a similar pipeline concept which would be nice to make available from the framework. Having another software with the same need will be valuable, if not mandatory, to build the proper high level interface for this concept. Also, are you aware of http://trac.osgeo.org/ossim/wiki/GsocPyOssim ? Regards, Julien This message was sent using IMP, the Internet Messaging Program. ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] Integrating OSSIM with QGIS
Il 13/06/2011 16:34, MALIK Julien ha scritto: The OrfeoToolbox has a similar pipeline concept which would be nice to make available from the framework. Having another software with the same need will be valuable, if not mandatory, to build the proper high level interface for this concept. I think also the capability of piping together GRASS commands would be valuable. Of course, piping all modules regardless of their origin would be *the* real killer. All the best. -- Paolo Cavallini: http://www.faunalia.it/pc ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] Integrating OSSIM with QGIS
Hi Ming This sounds interesting. What dependencies on external libraries does the provider have? (5) Can we post our ossim image provider to your svn for others to play with? QGIS switched to git in the meantime. You could clone the QGIS repository (g...@github.com:qgis/Quantum-GIS.git) and upload the changes to the cloned repo. Or just provide a patch against current master branch. (1) Is there a way for users to specify which provider to use? It looks like QGIS is hard coded to use the GDAL provider. This needs changes in the GUI. If it is only about file based datasources, it is a possibility to add a combo box to the 'add rasterlayer' dialog. If database / web services should also be accessed, it might be necessary to add a new dialog. Regards, Marco Am Mittwoch, 8. Juni 2011, 21.21:05 schrieb Mingjie Su: All- We are making some good progress on the ossim image provider (qgsossimprovider.cpp). Couple questions: (1) Is there a way for users to specify which provider to use? It looks like QGIS is hard coded to use the GDAL provider. (2) Band statistics. QGIS is pretty inefficient when it comes to computing band statistics. Its looping through all the pixels multiple times (once for each band) to populate the viewport. For RGB data for example, its looping through the data 3 times. In OSSIM, we can provide the band statistics for you so you don't have to scan the data. This will speed things up dramatically. BTW, this is true for both the GDAL and OSSIM providers. (3) Black pixels (0,0,0 RGB) are being flipped to transparent. Is there a way to override this behavior programatically? (4) In OSSIM we have a concept of image chains and connectable objects. You can wire up all kinds of filters and equations into a workflow to create an output image. The image chain can be represented using an array of key value pairs. Does the provider interface provide a mechanism for passing this type of information? (5) Can we post our ossim image provider to your svn for others to play with? Thanks, Ming -Original Message- From: Peter Borissow Sent: Wednesday, May 25, 2011 4:08 PM To: Tim Sutton; Pirmin Kalberer Cc: qgis-developer@lists.osgeo.org; qgis-os...@lists.sourceforge.net; Mingjie Su; Harsh Govind Subject: RE: [Qgis-developer] Integrating OSSIM with QGIS Hi Tim- We are playing with 1.6. We'll download the 1.7 branch right away. I agree, use of gdal should be abstracted away into a gdal provider. Sounds like we would create an OSSIM provider. And yes, we want to create/execute OSSIM image chains directly in QGIS! Thanks, Peter -Original Message- From: Tim Sutton [mailto:li...@linfiniti.com] Sent: Wednesday, May 25, 2011 4:03 PM To: Pirmin Kalberer Cc: qgis-developer@lists.osgeo.org; Peter Borissow; qgis-os...@lists.sourceforge.net; Mingjie Su; Harsh Govind Subject: Re: [Qgis-developer] Integrating OSSIM with QGIS Hi Peter 8---snip-- We started our investigation late last week. We have a debug version of QGIS up and running in Visual Studio 10 (64 bit) using QT 4.7.3. We have since discovered how integral GDAL is to QGIS. Undaunted, we added a some temporary hacks to bypass GDAL and we're now getting images to display via OSSIM! For us, this is a huge first step and we are seriously considering pressing ahead. What version are you building against? Since the 1.7 branch and in current master branch, Radim Blazek has done a great overhaul to cater for proper raster providers. That means you should not find QGIS is heavily intertwined with GDAL - the use of gdal should be abstracted away into the gdal provider, and you should be able to implement ossim raster support as a clean separate provider. I would also really love to see OSSIM support in QGIS (and maybe some of those nice processing chains making their way into QGIS :-). Regards Tim 8---snip-- -- Dr. Marco Hugentobler Sourcepole - Linux Open Source Solutions Churerstrasse 22, CH-8808 Pfäffikon SZ, Switzerland marco.hugentob...@sourcepole.ch http://www.sourcepole.ch Technical Advisor QGIS Project Steering Committee ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
RE: [Qgis-developer] Integrating OSSIM with QGIS
Hi Marco- The new provider is based on ossim which at its core has relatively few dependencies (libtiff, geotiff, jpeg, openthreads, etc). Ming will push out the code next week after we shake a couple more things out. The band statistics is a real killer right now. We could really use your advice on that. It requires changes to one of the the base classes. As for (1), I think the simplest thing to do is to have a global preference/getting to select an image provider. This would be an interim solution while we flesh out the ossim provider. BTW, Ming figured out (5) last night - simple one liner. In summary, we're still exploring (2) Band Statistics and (4) method for passing in definitions for image chains. Any thoughts/suggestions would be greatly appreciated! Best Regards, Peter From: Marco Hugentobler [marco.hugentob...@sourcepole.ch] Sent: Thursday, June 09, 2011 2:56 AM To: qgis-developer@lists.osgeo.org; qgis-os...@lists.sourceforge.net Cc: Mingjie Su; Peter Borissow; Harsh Govind Subject: Re: [Qgis-developer] Integrating OSSIM with QGIS Hi Ming This sounds interesting. What dependencies on external libraries does the provider have? (5) Can we post our ossim image provider to your svn for others to play with? QGIS switched to git in the meantime. You could clone the QGIS repository (g...@github.com:qgis/Quantum-GIS.git) and upload the changes to the cloned repo. Or just provide a patch against current master branch. (1) Is there a way for users to specify which provider to use? It looks like QGIS is hard coded to use the GDAL provider. This needs changes in the GUI. If it is only about file based datasources, it is a possibility to add a combo box to the 'add rasterlayer' dialog. If database / web services should also be accessed, it might be necessary to add a new dialog. Regards, Marco Am Mittwoch, 8. Juni 2011, 21.21:05 schrieb Mingjie Su: All- We are making some good progress on the ossim image provider (qgsossimprovider.cpp). Couple questions: (1) Is there a way for users to specify which provider to use? It looks like QGIS is hard coded to use the GDAL provider. (2) Band statistics. QGIS is pretty inefficient when it comes to computing band statistics. Its looping through all the pixels multiple times (once for each band) to populate the viewport. For RGB data for example, its looping through the data 3 times. In OSSIM, we can provide the band statistics for you so you don't have to scan the data. This will speed things up dramatically. BTW, this is true for both the GDAL and OSSIM providers. (3) Black pixels (0,0,0 RGB) are being flipped to transparent. Is there a way to override this behavior programatically? (4) In OSSIM we have a concept of image chains and connectable objects. You can wire up all kinds of filters and equations into a workflow to create an output image. The image chain can be represented using an array of key value pairs. Does the provider interface provide a mechanism for passing this type of information? (5) Can we post our ossim image provider to your svn for others to play with? Thanks, Ming -Original Message- From: Peter Borissow Sent: Wednesday, May 25, 2011 4:08 PM To: Tim Sutton; Pirmin Kalberer Cc: qgis-developer@lists.osgeo.org; qgis-os...@lists.sourceforge.net; Mingjie Su; Harsh Govind Subject: RE: [Qgis-developer] Integrating OSSIM with QGIS Hi Tim- We are playing with 1.6. We'll download the 1.7 branch right away. I agree, use of gdal should be abstracted away into a gdal provider. Sounds like we would create an OSSIM provider. And yes, we want to create/execute OSSIM image chains directly in QGIS! Thanks, Peter -Original Message- From: Tim Sutton [mailto:li...@linfiniti.com] Sent: Wednesday, May 25, 2011 4:03 PM To: Pirmin Kalberer Cc: qgis-developer@lists.osgeo.org; Peter Borissow; qgis-os...@lists.sourceforge.net; Mingjie Su; Harsh Govind Subject: Re: [Qgis-developer] Integrating OSSIM with QGIS Hi Peter 8---snip-- We started our investigation late last week. We have a debug version of QGIS up and running in Visual Studio 10 (64 bit) using QT 4.7.3. We have since discovered how integral GDAL is to QGIS. Undaunted, we added a some temporary hacks to bypass GDAL and we're now getting images to display via OSSIM! For us, this is a huge first step and we are seriously considering pressing ahead. What version are you building against? Since the 1.7 branch and in current master branch, Radim Blazek has done a great overhaul to cater for proper raster providers. That means you should not find QGIS is heavily intertwined with GDAL - the use of gdal should be abstracted away into the gdal provider, and you should be able to implement ossim raster support as a clean separate provider. I would also really love to see OSSIM support in QGIS (and maybe
Re: [Qgis-developer] Integrating OSSIM with QGIS
Hi On Wed, Jun 8, 2011 at 9:21 PM, Mingjie Su su.m...@geoeye.com wrote: All- We are making some good progress on the ossim image provider (qgsossimprovider.cpp). Couple questions: (1) Is there a way for users to specify which provider to use? It looks like QGIS is hard coded to use the GDAL provider. (2) Band statistics. QGIS is pretty inefficient when it comes to computing band statistics. Its looping through all the pixels multiple times (once for each band) to populate the viewport. For RGB data for example, its looping through the data 3 times. In OSSIM, we can provide the band statistics for you so you don't have to scan the data. This will speed things up dramatically. BTW, this is true for both the GDAL and OSSIM providers. This is a known issue. I have a branch where I have been replacing the stats routines to use native stats from providers. You can clone it from here: https://github.com/timlinux/Quantum-GIS/tree/raster-stats Its still unstable but maybe you can see where I am heading with this. (3) Black pixels (0,0,0 RGB) are being flipped to transparent. Is there a way to override this behavior programatically? (4) In OSSIM we have a concept of image chains and connectable objects. You can wire up all kinds of filters and equations into a workflow to create an output image. The image chain can be represented using an array of key value pairs. Does the provider interface provide a mechanism for passing this type of information? Currently not, but its an addition that we would love to see. The OTB folks would appreciate this too. (5) Can we post our ossim image provider to your svn for others to play with? Since we are using GIT now, you can simply fork QGIS, apply your patches and invite others to test it out. I look forward to doing so myself. Regards Tim Thanks, Ming -Original Message- From: Peter Borissow Sent: Wednesday, May 25, 2011 4:08 PM To: Tim Sutton; Pirmin Kalberer Cc: qgis-developer@lists.osgeo.org; qgis-os...@lists.sourceforge.net; Mingjie Su; Harsh Govind Subject: RE: [Qgis-developer] Integrating OSSIM with QGIS Hi Tim- We are playing with 1.6. We'll download the 1.7 branch right away. I agree, use of gdal should be abstracted away into a gdal provider. Sounds like we would create an OSSIM provider. And yes, we want to create/execute OSSIM image chains directly in QGIS! Thanks, Peter -Original Message- From: Tim Sutton [mailto:li...@linfiniti.com] Sent: Wednesday, May 25, 2011 4:03 PM To: Pirmin Kalberer Cc: qgis-developer@lists.osgeo.org; Peter Borissow; qgis-os...@lists.sourceforge.net; Mingjie Su; Harsh Govind Subject: Re: [Qgis-developer] Integrating OSSIM with QGIS Hi Peter 8---snip-- We started our investigation late last week. We have a debug version of QGIS up and running in Visual Studio 10 (64 bit) using QT 4.7.3. We have since discovered how integral GDAL is to QGIS. Undaunted, we added a some temporary hacks to bypass GDAL and we're now getting images to display via OSSIM! For us, this is a huge first step and we are seriously considering pressing ahead. What version are you building against? Since the 1.7 branch and in current master branch, Radim Blazek has done a great overhaul to cater for proper raster providers. That means you should not find QGIS is heavily intertwined with GDAL - the use of gdal should be abstracted away into the gdal provider, and you should be able to implement ossim raster support as a clean separate provider. I would also really love to see OSSIM support in QGIS (and maybe some of those nice processing chains making their way into QGIS :-). Regards Tim 8---snip-- -- Tim Sutton - QGIS Project Steering Committee Member (Release Manager) == Please do not email me off-list with technical support questions. Using the lists will gain more exposure for your issues and the knowledge surrounding your issue will be shared with all. Visit http://linfiniti.com to find out about: * QGIS programming and support services * Mapserver and PostGIS based hosting plans * FOSS Consulting Services Skype: timlinux Irc: timlinux on #qgis at freenode.net == -- Tim Sutton - QGIS Project Steering Committee Member (Release Manager) == Please do not email me off-list with technical support questions. Using the lists will gain more exposure for your issues and the knowledge surrounding your issue will be shared with all. Visit http://linfiniti.com to find out about: * QGIS programming and support services * Mapserver and PostGIS based hosting plans * FOSS Consulting Services Skype: timlinux Irc: timlinux on #qgis at freenode.net
Re: [Qgis-developer] Integrating OSSIM with QGIS
Il 25/05/2011 22:15, Tim Sutton ha scritto: And yes, we want to create/execute OSSIM image chains directly in QGIS! Cool can't wait! IMHO the right thing to do is to integrate OSSIM in the new analytical framework, along with OTB, SAGA, etc. We are currently in the first stages of implementation, please join the discussion. All the best. -- Paolo Cavallini: http://www.faunalia.it/pc ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] Integrating OSSIM with QGIS
Hi Peter, I believe there is already a OSSIM plugin for QGIS (I don't remember if it ever worked without major issues or if it was finished at all), are you aware of it? Cheers -- Giovanni -- On Wed, 2011-05-25 at 15:24 -0400, Peter Borissow wrote: Hello- We are currently investigating using QGIS as a front end to OSSIM (http://trac.osgeo.org/ossim/). At a very high level, our goal is to use OSSIM for rendering raster data in QGIS. That way, we can leverage the power of OSSIM for image processing and use OGR for vector visualization and editing using the QGIS platform. In fact, it looks like someone else had the same idea some time ago: http://www.qgis.org/wiki/Integration_of_QGIS_and_OSSIM We started our investigation late last week. We have a debug version of QGIS up and running in Visual Studio 10 (64 bit) using QT 4.7.3. We have since discovered how integral GDAL is to QGIS. Undaunted, we added a some temporary hacks to bypass GDAL and we’re now getting images to display via OSSIM! For us, this is a huge first step and we are seriously considering pressing ahead. Is this something that the QGIS community would support? We would very much appreciate your blessing and support. We have lots of questions and could really use your help. Thanks in Advance! Peter ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
RE: [Qgis-developer] Integrating OSSIM with QGIS
Hi Giovanni- We would love to get our hands on the plugin if it exists! Can you point us in the right direction? Thanks, Peter -Original Message- From: Giovanni Manghi [mailto:giovanni.man...@gmail.com] Sent: Wednesday, May 25, 2011 3:28 PM To: Peter Borissow Cc: qgis-developer@lists.osgeo.org; qgis-os...@lists.sourceforge.net; Mingjie Su; Harsh Govind Subject: Re: [Qgis-developer] Integrating OSSIM with QGIS Hi Peter, I believe there is already a OSSIM plugin for QGIS (I don't remember if it ever worked without major issues or if it was finished at all), are you aware of it? Cheers -- Giovanni -- On Wed, 2011-05-25 at 15:24 -0400, Peter Borissow wrote: Hello- We are currently investigating using QGIS as a front end to OSSIM (http://trac.osgeo.org/ossim/). At a very high level, our goal is to use OSSIM for rendering raster data in QGIS. That way, we can leverage the power of OSSIM for image processing and use OGR for vector visualization and editing using the QGIS platform. In fact, it looks like someone else had the same idea some time ago: http://www.qgis.org/wiki/Integration_of_QGIS_and_OSSIM We started our investigation late last week. We have a debug version of QGIS up and running in Visual Studio 10 (64 bit) using QT 4.7.3. We have since discovered how integral GDAL is to QGIS. Undaunted, we added a some temporary hacks to bypass GDAL and we’re now getting images to display via OSSIM! For us, this is a huge first step and we are seriously considering pressing ahead. Is this something that the QGIS community would support? We would very much appreciate your blessing and support. We have lots of questions and could really use your help. Thanks in Advance! Peter ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
RE: [Qgis-developer] Integrating OSSIM with QGIS
Hi Peter, On Wed, 2011-05-25 at 15:42 -0400, Peter Borissow wrote: Hi Giovanni- We would love to get our hands on the plugin if it exists! Can you point us in the right direction? here are the links in my bookmarks http://web.me.com/epiesasha/PlanetSasha/Project.html http://www.ustream.tv/recorded/2502924 cheers -- Giovanni -- ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] Integrating OSSIM with QGIS
Hi Peter, Here's the project page: http://web.me.com/epiesasha/PlanetSasha/PlanetSasha.html Pirmin Am Mittwoch, 25. Mai 2011, 21.42:47 schrieb Peter Borissow: Hi Giovanni- We would love to get our hands on the plugin if it exists! Can you point us in the right direction? Thanks, Peter -Original Message- From: Giovanni Manghi [mailto:giovanni.man...@gmail.com] Sent: Wednesday, May 25, 2011 3:28 PM To: Peter Borissow Cc: qgis-developer@lists.osgeo.org; qgis-os...@lists.sourceforge.net; Mingjie Su; Harsh Govind Subject: Re: [Qgis-developer] Integrating OSSIM with QGIS Hi Peter, I believe there is already a OSSIM plugin for QGIS (I don't remember if it ever worked without major issues or if it was finished at all), are you aware of it? Cheers -- Giovanni -- On Wed, 2011-05-25 at 15:24 -0400, Peter Borissow wrote: Hello- We are currently investigating using QGIS as a front end to OSSIM (http://trac.osgeo.org/ossim/). At a very high level, our goal is to use OSSIM for rendering raster data in QGIS. That way, we can leverage the power of OSSIM for image processing and use OGR for vector visualization and editing using the QGIS platform. In fact, it looks like someone else had the same idea some time ago: http://www.qgis.org/wiki/Integration_of_QGIS_and_OSSIM We started our investigation late last week. We have a debug version of QGIS up and running in Visual Studio 10 (64 bit) using QT 4.7.3. We have since discovered how integral GDAL is to QGIS. Undaunted, we added a some temporary hacks to bypass GDAL and we’re now getting images to display via OSSIM! For us, this is a huge first step and we are seriously considering pressing ahead. Is this something that the QGIS community would support? We would very much appreciate your blessing and support. We have lots of questions and could really use your help. Thanks in Advance! Peter ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer -- Pirmin Kalberer Sourcepole - Linux Open Source Solutions http://www.sourcepole.com ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] Integrating OSSIM with QGIS
Hi Peter 8---snip-- We started our investigation late last week. We have a debug version of QGIS up and running in Visual Studio 10 (64 bit) using QT 4.7.3. We have since discovered how integral GDAL is to QGIS. Undaunted, we added a some temporary hacks to bypass GDAL and we’re now getting images to display via OSSIM! For us, this is a huge first step and we are seriously considering pressing ahead. What version are you building against? Since the 1.7 branch and in current master branch, Radim Blazek has done a great overhaul to cater for proper raster providers. That means you should not find QGIS is heavily intertwined with GDAL - the use of gdal should be abstracted away into the gdal provider, and you should be able to implement ossim raster support as a clean separate provider. I would also really love to see OSSIM support in QGIS (and maybe some of those nice processing chains making their way into QGIS :-). Regards Tim 8---snip-- -- Tim Sutton - QGIS Project Steering Committee Member (Release Manager) == Please do not email me off-list with technical support questions. Using the lists will gain more exposure for your issues and the knowledge surrounding your issue will be shared with all. Visit http://linfiniti.com to find out about: * QGIS programming and support services * Mapserver and PostGIS based hosting plans * FOSS Consulting Services Skype: timlinux Irc: timlinux on #qgis at freenode.net == ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
RE: [Qgis-developer] Integrating OSSIM with QGIS
Hi Tim- We are playing with 1.6. We'll download the 1.7 branch right away. I agree, use of gdal should be abstracted away into a gdal provider. Sounds like we would create an OSSIM provider. And yes, we want to create/execute OSSIM image chains directly in QGIS! Thanks, Peter -Original Message- From: Tim Sutton [mailto:li...@linfiniti.com] Sent: Wednesday, May 25, 2011 4:03 PM To: Pirmin Kalberer Cc: qgis-developer@lists.osgeo.org; Peter Borissow; qgis-os...@lists.sourceforge.net; Mingjie Su; Harsh Govind Subject: Re: [Qgis-developer] Integrating OSSIM with QGIS Hi Peter 8---snip-- We started our investigation late last week. We have a debug version of QGIS up and running in Visual Studio 10 (64 bit) using QT 4.7.3. We have since discovered how integral GDAL is to QGIS. Undaunted, we added a some temporary hacks to bypass GDAL and we're now getting images to display via OSSIM! For us, this is a huge first step and we are seriously considering pressing ahead. What version are you building against? Since the 1.7 branch and in current master branch, Radim Blazek has done a great overhaul to cater for proper raster providers. That means you should not find QGIS is heavily intertwined with GDAL - the use of gdal should be abstracted away into the gdal provider, and you should be able to implement ossim raster support as a clean separate provider. I would also really love to see OSSIM support in QGIS (and maybe some of those nice processing chains making their way into QGIS :-). Regards Tim 8---snip-- -- Tim Sutton - QGIS Project Steering Committee Member (Release Manager) == Please do not email me off-list with technical support questions. Using the lists will gain more exposure for your issues and the knowledge surrounding your issue will be shared with all. Visit http://linfiniti.com to find out about: * QGIS programming and support services * Mapserver and PostGIS based hosting plans * FOSS Consulting Services Skype: timlinux Irc: timlinux on #qgis at freenode.net == ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] Integrating OSSIM with QGIS
Hi On Wed, May 25, 2011 at 10:07 PM, Peter Borissow borissow.pe...@geoeye.com wrote: Hi Tim- We are playing with 1.6. We'll download the 1.7 branch right away. I agree, use of gdal should be abstracted away into a gdal provider. Sounds like we would create an OSSIM provider. Just in case I wasnt clear in my post, I mean that gdal stuff *is* abstracted away into its own provider in 1.7 and trunk. And yes, we want to create/execute OSSIM image chains directly in QGIS! Cool can't wait! regards Tim Thanks, Peter -Original Message- From: Tim Sutton [mailto:li...@linfiniti.com] Sent: Wednesday, May 25, 2011 4:03 PM To: Pirmin Kalberer Cc: qgis-developer@lists.osgeo.org; Peter Borissow; qgis-os...@lists.sourceforge.net; Mingjie Su; Harsh Govind Subject: Re: [Qgis-developer] Integrating OSSIM with QGIS Hi Peter 8---snip-- We started our investigation late last week. We have a debug version of QGIS up and running in Visual Studio 10 (64 bit) using QT 4.7.3. We have since discovered how integral GDAL is to QGIS. Undaunted, we added a some temporary hacks to bypass GDAL and we're now getting images to display via OSSIM! For us, this is a huge first step and we are seriously considering pressing ahead. What version are you building against? Since the 1.7 branch and in current master branch, Radim Blazek has done a great overhaul to cater for proper raster providers. That means you should not find QGIS is heavily intertwined with GDAL - the use of gdal should be abstracted away into the gdal provider, and you should be able to implement ossim raster support as a clean separate provider. I would also really love to see OSSIM support in QGIS (and maybe some of those nice processing chains making their way into QGIS :-). Regards Tim 8---snip-- -- Tim Sutton - QGIS Project Steering Committee Member (Release Manager) == Please do not email me off-list with technical support questions. Using the lists will gain more exposure for your issues and the knowledge surrounding your issue will be shared with all. Visit http://linfiniti.com to find out about: * QGIS programming and support services * Mapserver and PostGIS based hosting plans * FOSS Consulting Services Skype: timlinux Irc: timlinux on #qgis at freenode.net == -- Tim Sutton - QGIS Project Steering Committee Member (Release Manager) == Please do not email me off-list with technical support questions. Using the lists will gain more exposure for your issues and the knowledge surrounding your issue will be shared with all. Visit http://linfiniti.com to find out about: * QGIS programming and support services * Mapserver and PostGIS based hosting plans * FOSS Consulting Services Skype: timlinux Irc: timlinux on #qgis at freenode.net == ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
RE: [Qgis-developer] Integrating OSSIM with QGIS
Giovanni/Pirmin- Thanks for the links. Looks like a cool plugin for ossim planet. Our goals are a little different. I think Tim has a good idea of what we're trying to do. We'll be in touch soon. Thanks! Peter -Original Message- From: qgis-developer-boun...@lists.osgeo.org [mailto:qgis-developer-boun...@lists.osgeo.org] On Behalf Of Giovanni Manghi Sent: Wednesday, May 25, 2011 3:48 PM To: Peter Borissow Cc: qgis-developer@lists.osgeo.org; Mingjie Su; qgis-os...@lists.sourceforge.net; Harsh Govind Subject: RE: [Qgis-developer] Integrating OSSIM with QGIS Hi Peter, On Wed, 2011-05-25 at 15:42 -0400, Peter Borissow wrote: Hi Giovanni- We would love to get our hands on the plugin if it exists! Can you point us in the right direction? here are the links in my bookmarks http://web.me.com/epiesasha/PlanetSasha/Project.html http://www.ustream.tv/recorded/2502924 cheers -- Giovanni -- ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
RE: [Qgis-developer] Integrating OSSIM with QGIS
If anyone does try to use the ossim planet plugin on Windows: some months ago I posted (I think to the QGIS user list) a few minor fixes which were required to get the plugin to load. But I don't think I ever actually tested whether it worked. Alister Date: Wed, 25 May 2011 16:22:02 -0400 From: Peter Borissow borissow.pe...@geoeye.com Subject: RE: [Qgis-developer] Integrating OSSIM with QGIS To: giovanni.man...@gmail.com giovanni.man...@gmail.com, Pirmin Kalbererpi...@sourcepole.com Cc: Mingjie, qgis-developer@lists.osgeo.org qgis-developer@lists.osgeo.org, qgis-os...@lists.sourceforge.net qgis-os...@lists.sourceforge.net, Su su.m...@geoeye.com, Harsh Govind govind.ha...@geoeye.com Message-ID: 4b3b3c35d34c9345bc8914c199882e281e044ad...@spatcex003.spadac.com Content-Type: text/plain; charset=utf-8 Giovanni/Pirmin- Thanks for the links. Looks like a cool plugin for ossim planet. Our goals are a little different. I think Tim has a good idea of what we're trying to do. We'll be in touch soon. Thanks! Peter -Original Message- From: qgis-developer-boun...@lists.osgeo.org [mailto:qgis-developer- boun...@lists.osgeo.org] On Behalf Of Giovanni Manghi Sent: Wednesday, May 25, 2011 3:48 PM To: Peter Borissow Cc: qgis-developer@lists.osgeo.org; Mingjie Su; qgis- os...@lists.sourceforge.net; Harsh Govind Subject: RE: [Qgis-developer] Integrating OSSIM with QGIS Hi Peter, On Wed, 2011-05-25 at 15:42 -0400, Peter Borissow wrote: Hi Giovanni- We would love to get our hands on the plugin if it exists! Can you point us in the right direction? here are the links in my bookmarks http://web.me.com/epiesasha/PlanetSasha/Project.html http://www.ustream.tv/recorded/2502924 cheers -- Giovanni -- ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
