I'm not doing any painting of SVG on the screen. I'm just outputting an SVG file. This may not make sense, so let me explain how it will work in BizzJUMP:
(1) The user selects an SVG export profile. This will be a text file that contains the model space coordinate that will be the top-left zero-zero coordinate of the SVG document. It will also contain SVG style information, like stroke width, stroke pattern, fille pattern, fill color and stroke color. (2) The user will select the simple features they want to export to SVG. (3) My plug-in will take the LineStrings, Points, and Polygon's from the selected features and will manually convert them to SVG shapes based on the data in the export profile. (4) The SVG elements derived from the feature geometries will be written to an SVG text file that can be consumed by Inkscape. It doesn't sound like I'm tackling the challenge you describe. My goal is to allow BizzJUMP/OpenJUMP to be used with OpenJUMP for "precise" cartographic production. Because I'm not using Batik, and I'm doing the conversion to SVG directly, I have more control over the conversion process. I could, for example, design the code to: (1) Join adjacent Linestrings into single SVG paths. (2) Only create labels centered and rotated along the longest segment of a LineString. (3) Change the fill color of a polygon based on the color of adjacent polygons. (4) Create different symbols (shapes) to represent point features based on some attribute value. (5) Organize SVG shapes into Inkscape layers based on attribute values or some other logical grouping. Landon On Fri, Mar 5, 2010 at 10:09 AM, Chris Holmes <chol...@opengeo.org> wrote: > So you're not using Batik at all? You're writing your own svg renderer? > Does it actual render? Like take styling in to account? If it can > produced styled SLD, especially if it could stream the output, that's > something we're interested in for geoserver, as batik is pretty slow. > > On 3/5/10 11:38 AM, Sunburned Surveyor wrote: >> I'm getting close to my first release of some code that will allow >> BizzJUMP/OpenJUMP to export "precise" SVG. Currently OpenJUMP using >> Batik to export SVG. This makes it difficult to export geometry to the >> SVG coordinate system consistently, based on the same top-left page >> coordinate. My code will change that. The user will be able to convert >> JTS geometries to SVG using a specific top-left coordinate, scale >> factor, and rotation factor. I believe this code will greatly increase >> the ability to use BizzJUMP/OpenJUMP for cartographic purposes. >> >> Over time I hope to add support for things like Inkscape layers and >> SVG text generated from feature attributes. >> >> I'd like to know if there is any interest in this code among the >> GeoTools community. Because my code works directly with JTS, it could >> theoretically be used by any exisitng GIS application in Java that >> uses JTS to represent feature goemetires. It could also be used with >> other parts of Geotools to build a stand alone Shapefile to SVG >> converter. >> >> If there is interest in this code, I will start separating any >> BizzJUMP specific classes into separate packages and will adopt the >> Geotools file headers. I will then apply for an unsupported module. >> >> If there isn't enough interest, I'll just release the code through my >> SurveyOS SourceForge project. If you are curious, my current code can >> be found here: >> >> http://surveyos.svn.sourceforge.net/viewvc/surveyos/java/openjump_inkscape_svg_export/trunk/src/ >> >> Landon >> >> ------------------------------------------------------------------------------ >> Download Intel® Parallel Studio Eval >> Try the new software tools for yourself. Speed compiling, find bugs >> proactively, and fine-tune applications for parallel performance. >> See why Intel Parallel Studio got high marks during beta. >> http://p.sf.net/sfu/intel-sw-dev >> _______________________________________________ >> Geotools-devel mailing list >> Geotools-devel@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/geotools-devel > > ------------------------------------------------------------------------------ > Download Intel® Parallel Studio Eval > Try the new software tools for yourself. Speed compiling, find bugs > proactively, and fine-tune applications for parallel performance. > See why Intel Parallel Studio got high marks during beta. > http://p.sf.net/sfu/intel-sw-dev > _______________________________________________ > Geotools-devel mailing list > Geotools-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/geotools-devel > ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Geotools-devel mailing list Geotools-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geotools-devel
