Re: [Geoserver-devel] geotools/geoserver iText and geoPDF
On Tue, Feb 1, 2011 at 9:38 AM, Frank Gasdorf fg...@users.sourceforge.net wrote: Hi List, Hi Jody First of all, sorry for cross-posting! Last Night I had a look at the iText Project [1] Jody has mentioned and I have to dive deeper to get a clue what it does and which part of the API is currently used by geotools/geoserver. What I like to get is a pdf file where the user could use (but not required) the free terrago toolbar [2] to measure distances and areas and type lat/lon coordinates to jump to locations within the pdf. But it is required to have CRS information about the data/content within the document. In addition it would be great to have layers in the hierarchy view (Index) and search capabilities on the feature content (attribute values). But however, would't that be nice features for all geoserver/geotools folks and end-users to get a ready to go pdf for the field and have these capabilities. Maybe some of you could point me to the code where the pdf stuff is taking place ... I'm going to read the adope pdf documentation [4] to find a hint if some TAGs are missed to act like a geopdf. And properly it's already supported by iText to create the meta information. An other relevant documentation is PDF Geo-registration Encoding Best Practice Version 2.2 at OGC standards best practices home [3]. Do you think we could create an enhancement in geotools/geoserver for that? I don't know, didn't had the time to investigate the links you provided. Howerver, the code that generates PDF in GeoServer is here: http://svn.codehaus.org/geoserver/trunk/src/wms/src/main/java/org/geoserver/wms/map/PDFMapResponse.java Basically we ask iText to give up a Graphics2D object and then we draw on top of it as if it was a java2d one. That does not give an occasion to do anything in between layers getting rendered. I guess one could split the map into n single maps, yet that would break labeling solid (as it has to happen at the end of the rendering to have all labels conflict resolve with each other and stay on top). That too can be handled somehow but it would require splitting the styles into components with text symbolizers and components without As for setting in the necessary metadata, I hope iText provides the necessary support for that (but I'm confident it might) Cheers Andrea PS: ah, another possible hack is to create a custom label cache that just wraps the standard one. This is because the label cache is informed on layers starting and stopping being rendered. Yet another possibility would be to make streaming renderer subclassable, but it's not on purpose, not really though to be a base class -- Ing. Andrea Aime Technical Lead GeoSolutions S.A.S. Via Poggio alle Viti 1187 55054 Massarosa (LU) Italy phone: +39 0584962313 fax: +39 0584962313 http://www.geo-solutions.it http://geo-solutions.blogspot.com/ http://www.linkedin.com/in/andreaaime http://twitter.com/geowolf - -- Special Offer-- Download ArcSight Logger for FREE (a $49 USD value)! Finally, a world-class log management solution at an even better price-free! Download using promo code Free_Logger_4_Dev2Dev. Offer expires February 28th, so secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsight-sfd2d ___ Geoserver-devel mailing list Geoserver-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geoserver-devel
Re: [Geoserver-devel] geotools/geoserver iText and geoPDF
Just to follow up andrea's ideas. In udig we make a custom label cache and throw it at several streaming renderers (so they can render in different threads) - so the idea of a custom label cache works very well. We also do a trick of increasing the page resolution; and then also using a visitor to edit the styles (so lines and fonts are bigger); and then rescale that output down to the final page size. This results in a larger; but higher quality pdf. Jody On 02/02/2011, at 6:36 PM, Andrea Aime wrote: On Tue, Feb 1, 2011 at 9:38 AM, Frank Gasdorf fg...@users.sourceforge.net wrote: Hi List, Hi Jody First of all, sorry for cross-posting! Last Night I had a look at the iText Project [1] Jody has mentioned and I have to dive deeper to get a clue what it does and which part of the API is currently used by geotools/geoserver. What I like to get is a pdf file where the user could use (but not required) the free terrago toolbar [2] to measure distances and areas and type lat/lon coordinates to jump to locations within the pdf. But it is required to have CRS information about the data/content within the document. In addition it would be great to have layers in the hierarchy view (Index) and search capabilities on the feature content (attribute values). But however, would't that be nice features for all geoserver/geotools folks and end-users to get a ready to go pdf for the field and have these capabilities. Maybe some of you could point me to the code where the pdf stuff is taking place ... I'm going to read the adope pdf documentation [4] to find a hint if some TAGs are missed to act like a geopdf. And properly it's already supported by iText to create the meta information. An other relevant documentation is PDF Geo-registration Encoding Best Practice Version 2.2 at OGC standards best practices home [3]. Do you think we could create an enhancement in geotools/geoserver for that? I don't know, didn't had the time to investigate the links you provided. Howerver, the code that generates PDF in GeoServer is here: http://svn.codehaus.org/geoserver/trunk/src/wms/src/main/java/org/geoserver/wms/map/PDFMapResponse.java Basically we ask iText to give up a Graphics2D object and then we draw on top of it as if it was a java2d one. That does not give an occasion to do anything in between layers getting rendered. I guess one could split the map into n single maps, yet that would break labeling solid (as it has to happen at the end of the rendering to have all labels conflict resolve with each other and stay on top). That too can be handled somehow but it would require splitting the styles into components with text symbolizers and components without As for setting in the necessary metadata, I hope iText provides the necessary support for that (but I'm confident it might) Cheers Andrea PS: ah, another possible hack is to create a custom label cache that just wraps the standard one. This is because the label cache is informed on layers starting and stopping being rendered. Yet another possibility would be to make streaming renderer subclassable, but it's not on purpose, not really though to be a base class -- Ing. Andrea Aime Technical Lead GeoSolutions S.A.S. Via Poggio alle Viti 1187 55054 Massarosa (LU) Italy phone: +39 0584962313 fax: +39 0584962313 http://www.geo-solutions.it http://geo-solutions.blogspot.com/ http://www.linkedin.com/in/andreaaime http://twitter.com/geowolf - -- Special Offer-- Download ArcSight Logger for FREE (a $49 USD value)! Finally, a world-class log management solution at an even better price-free! Download using promo code Free_Logger_4_Dev2Dev. Offer expires February 28th, so secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsight-sfd2d ___ Geoserver-devel mailing list Geoserver-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geoserver-devel
Re: [Geoserver-devel] geotools/geoserver iText and geoPDF
On Wed, Feb 2, 2011 at 1:22 PM, Jody Garnett jody.garn...@gmail.com wrote: Just to follow up andrea's ideas. In udig we make a custom label cache and throw it at several streaming renderers (so they can render in different threads) - so the idea of a custom label cache works very well. Right, did not think about it, that also solves the problem of having all the labels keep on conflict resolutiong with each other, one just has to kick the label cache drawing when all the layers have done rendering We also do a trick of increasing the page resolution; and then also using a visitor to edit the styles (so lines and fonts are bigger); and then rescale that output down to the final page size. This results in a larger; but higher quality pdf. That one is no more necessary, we do have dpi control in the renderer now (have been for quite some time) Cheers Andrea -- Ing. Andrea Aime Technical Lead GeoSolutions S.A.S. Via Poggio alle Viti 1187 55054 Massarosa (LU) Italy phone: +39 0584962313 fax: +39 0584962313 http://www.geo-solutions.it http://geo-solutions.blogspot.com/ http://www.linkedin.com/in/andreaaime http://twitter.com/geowolf - -- Special Offer-- Download ArcSight Logger for FREE (a $49 USD value)! Finally, a world-class log management solution at an even better price-free! Download using promo code Free_Logger_4_Dev2Dev. Offer expires February 28th, so secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsight-sfd2d ___ Geoserver-devel mailing list Geoserver-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geoserver-devel
[Geoserver-devel] geotools/geoserver iText and geoPDF
Hi List, Hi Jody First of all, sorry for cross-posting! Last Night I had a look at the iText Project [1] Jody has mentioned and I have to dive deeper to get a clue what it does and which part of the API is currently used by geotools/geoserver. What I like to get is a pdf file where the user could use (but not required) the free terrago toolbar [2] to measure distances and areas and type lat/lon coordinates to jump to locations within the pdf. But it is required to have CRS information about the data/content within the document. In addition it would be great to have layers in the hierarchy view (Index) and search capabilities on the feature content (attribute values). But however, would't that be nice features for all geoserver/geotools folks and end-users to get a ready to go pdf for the field and have these capabilities. Maybe some of you could point me to the code where the pdf stuff is taking place ... I'm going to read the adope pdf documentation [4] to find a hint if some TAGs are missed to act like a geopdf. And properly it's already supported by iText to create the meta information. An other relevant documentation is PDF Geo-registration Encoding Best Practice Version 2.2http://portal.opengeospatial.org/files/?artifact_id=40537 at OGC standards best practices home [3]. Do you think we could create an enhancement in geotools/geoserver for that? Or can we just discuss to find a way how to solve it. Thanks for any advice and any suggestions. Frank [1] iText Project home http://itextpdf.com/ [2] free toolbar available at http://www.terragotech.com/products/terrago-toolbar/ (registration required) [3] ogc best practices geo referenced pdf : http://portal.opengeospatial.org/files/?artifact_id=40537 [4] Adope PDF Reference : http://www.adobe.com/content/dam/Adobe/en/devnet/pdf/pdfs/pdf_reference_1-7.pdf -- Special Offer-- Download ArcSight Logger for FREE (a $49 USD value)! Finally, a world-class log management solution at an even better price-free! Download using promo code Free_Logger_4_Dev2Dev. Offer expires February 28th, so secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsight-sfd2d___ Geoserver-devel mailing list Geoserver-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geoserver-devel
Re: [Geoserver-devel] geotools/geoserver iText and geoPDF
We should probably stick on the user list; unless we are talking about adding code - I would love to see a geopdf module for geotools. Here is some code to set up an iText Graphics: - http://gitorious.org/udig/udig-platform/blobs/master/plugins/net.refractions.udig.printing.ui/src/net/refractions/udig/printing/ui/pdf/ExportPDFWizard.java And to print use the normal streaming renderer examples: - http://docs.codehaus.org/display/GEOTDOC/01+GTRenderer I filled in some of the details on that page about printing; try out the code and correct as needed. Jody On 01/02/2011, at 6:38 PM, Frank Gasdorf wrote: Hi List, Hi Jody First of all, sorry for cross-posting! Last Night I had a look at the iText Project [1] Jody has mentioned and I have to dive deeper to get a clue what it does and which part of the API is currently used by geotools/geoserver. What I like to get is a pdf file where the user could use (but not required) the free terrago toolbar [2] to measure distances and areas and type lat/lon coordinates to jump to locations within the pdf. But it is required to have CRS information about the data/content within the document. In addition it would be great to have layers in the hierarchy view (Index) and search capabilities on the feature content (attribute values). But however, would't that be nice features for all geoserver/geotools folks and end-users to get a ready to go pdf for the field and have these capabilities. Maybe some of you could point me to the code where the pdf stuff is taking place ... I'm going to read the adope pdf documentation [4] to find a hint if some TAGs are missed to act like a geopdf. And properly it's already supported by iText to create the meta information. An other relevant documentation is at OGC standards best practices home [3]. Do you think we could create an enhancement in geotools/geoserver for that? Or can we just discuss to find a way how to solve it. Thanks for any advice and any suggestions. Frank [1] iText Project home http://itextpdf.com/ [2] free toolbar available at http://www.terragotech.com/products/terrago-toolbar/ (registration required) [3] ogc best practices geo referenced pdf : http://portal.opengeospatial.org/files/?artifact_id=40537 [4] Adope PDF Reference : http://www.adobe.com/content/dam/Adobe/en/devnet/pdf/pdfs/pdf_reference_1-7.pdf -- Special Offer-- Download ArcSight Logger for FREE (a $49 USD value)! Finally, a world-class log management solution at an even better price-free! Download using promo code Free_Logger_4_Dev2Dev. Offer expires February 28th, so secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsight-sfd2d___ Geoserver-devel mailing list Geoserver-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geoserver-devel
