FWIW, my experience is that regrettably, the HW/OS combo is key to the image rendering quality; I had a servlet app I developed on Mac OS X that produced SVG images on demand that had to be returned to the Web client as PNG. On the Mac, the rendering was extremely good, but when run on a PC/Linux server, it produced unacceptable images. In our case, this issue was mostly that of poor text rendering at small type sizes, due to bad anti-aliasing. After a lot of testing, we decided to get a Mac dedicated to image rendering! YMMV. best Martin
On 14 December 2011 16:01, Steve Maher <steve.f.ma...@gmail.com> wrote: > Hi, > > I'm looking for a high-quality SVG renderer. Batik's rasterizer seems to be > the best out of the three I've tried, but I need it to do better. I've > tried all the image-rendering, shape-rendering, color-rendering hints > without much (any?) change. I've searched the source - mainly to try to > increase any subsampling quantities - but had no luck. > > I'm dealing with small circles that need to be rendered "correctly" for a > custom projector in our lab at work. > > For example, for a circle of radius .5 pixels (no stroke), and centered in > the middle of a pixel (in other words, a circle touching the edges of a > pixel), the rendered pixel intensity should be roughly PI/4 times the > intensity of the circle (because the ratio of circle area to square area is > PI/4). > > Also, if I rotate the circle by 45 degrees (rotation centered on corner of > pixel), there will be a 4 pixel square used to render the circle, with most > intensity split between two adjacent pixels and much less intensity split > between the other two adjacent pixels. > > Batik comes close, but the intensity is high in the first case and in the > second case, the intensity is not symmetric between the adjacent pixels > (like the rotation wasn't exactly 45 degrees). > > One option I am exploring is to artificially enlarge the scene, render by 1 > pixel circle across, oh, 100 pixels, and then shrink the image. Effectively > increasing the subsampling of the circle to determine pixel intensity. I > was hoping to be able to do that natively in the Batik source - or use some > other SVG renderer. > > Any tips are appreciated - > > Regards, > Steve > > -- >From my MacBook Pro --------------------------------------------------------------------- To unsubscribe, e-mail: batik-users-unsubscr...@xmlgraphics.apache.org For additional commands, e-mail: batik-users-h...@xmlgraphics.apache.org
