Hi all, I would ask if I can backport my modifications related to the WMSTileFuser class (GeoWebCache) on the following versions of GeoTools, GeoServer and GeoWebCache:
- Geotools: 11.x and 10.x - GeoServer: 2.5.x and 2.4.x - GeoWebCache: 1.5.x I will wait a month from the date of each pull requests on the master branch before sending the new pull requests. It should be noted that these pull requests will upgrade the ImageIO-Ext version from 1.1.8 to 1.1.9 which are very similar except for the new PNG Writer plugin. This is a short summary of the 3 pull requests: - for GeoTools I have moved the Quantizer code from GeoServer. It is related to the following JIRA https://jira.codehaus.org/browse/GEOS-6376. - for GepServer I have moved the Quantizer code to GeoTools and the PNGEncoder code to ImageIO-Ext. (see the JIRA above). - for GeoWebCache, I have improved the WMSTileFuser class and made full WMS support configurable from the geowebcache.xml file. Also I added a new WMS parameter called "hints" which can be set to *SPEED*, *DEFAULT* and *QUALITY.* This parameter gives the possibility to make a WMS request faster or with a better quality. I will be pleased to answer to all your questions. Cheers, Nicola. 2014-03-07 15:43 GMT+01:00 Nicola Lagomarsini < nicola.lagomars...@geo-solutions.it>: > Hi all, > > I have changed the hints configurations by differentiating the > interpolation type for each configuration: > > - speed = nearest interpolation (link > > https://drive.google.com/file/d/0B_H-B1p4qGi6aXN1TGpwNUc0MWs/edit?usp=sharing > ) > - default = bilinear interpolation (link > > https://drive.google.com/file/d/0B_H-B1p4qGi6NHNSVmpDaTZPX0U/edit?usp=sharing > ) > - quality = bicubic intperpolation (link > > https://drive.google.com/file/d/0B_H-B1p4qGi6NlFNUVMzSnB5UEk/edit?usp=sharing > ) > > Cheers, > > Nicola. > > > > 2014-03-07 14:35 GMT+01:00 Nicola Lagomarsini < > nicola.lagomars...@geo-solutions.it>: > > Hi all, >> >> I have changed the quality factor to 0.25 and the image size is above >> 40kb. Here you can find the links for the new compressed images. >> >> speed configuration link: >> https://drive.google.com/file/d/0B_H-B1p4qGi6OHhRZU9GcXZTZG8/edit?usp=sharing >> default configuration link: >> https://drive.google.com/file/d/0B_H-B1p4qGi6dUdqSmRQXzJleHM/edit?usp=sharing >> quality configuration link: >> https://drive.google.com/file/d/0B_H-B1p4qGi6NjZVYWw1d19PRHc/edit?usp=sharing >> >> Cheers, >> Nicola. >> >> >> >> 2014-03-07 11:53 GMT+01:00 Nicola Lagomarsini < >> nicola.lagomars...@geo-solutions.it>: >> >> Hi all, >>> >>> I have set the quality factor to 0.1 inside the pull requests. >>> >>> Cheers, >>> Nicola. >>> >>> >>> 2014-03-07 11:11 GMT+01:00 Nicola Lagomarsini < >>> nicola.lagomars...@geo-solutions.it>: >>> >>> Hi Andrea, >>>> >>>> the quality parameter can be configured inside the application context >>>> for the PNGEncoder inside the gwc-wms and gs-gwc modules. By setting for >>>> example the quality parameter to 0.1 the image size is considerably >>>> reduced. >>>> >>>> About the hints considerations I have used different hints for each >>>> configuration, so I think that this similarity between speed and default >>>> configuration could be associated to a similar hints behaviour. >>>> >>>> Below are listed the hints for each configurations. >>>> >>>> Speed: >>>> KEY_COLOR_RENDERING = VALUE_COLOR_RENDER_SPEED; >>>> KEY_ANTIALIASING = VALUE_ANTIALIAS_OFF; >>>> KEY_FRACTIONALMETRICS = VALUE_FRACTIONALMETRICS_OFF; >>>> KEY_ALPHA_INTERPOLATION = VALUE_ALPHA_INTERPOLATION_SPEED; >>>> KEY_INTERPOLATION = VALUE_INTERPOLATION_NEAREST_NEIGHBOR; >>>> KEY_RENDERING = VALUE_RENDER_SPEED; >>>> KEY_TEXT_ANTIALIASING = VALUE_TEXT_ANTIALIAS_OFF; >>>> KEY_STROKE_CONTROL = VALUE_STROKE_PURE; >>>> >>>> Default: >>>> KEY_COLOR_RENDERING = VALUE_COLOR_RENDER_DEFAULT; >>>> KEY_ANTIALIASING = VALUE_ANTIALIAS_DEFAULT; >>>> KEY_FRACTIONALMETRICS = VALUE_FRACTIONALMETRICS_DEFAULT; >>>> KEY_ALPHA_INTERPOLATION =VALUE_ALPHA_INTERPOLATION_DEFAULT; >>>> KEY_RENDERING = VALUE_RENDER_DEFAULT; >>>> KEY_TEXT_ANTIALIASING = VALUE_TEXT_ANTIALIAS_DEFAULT; >>>> KEY_STROKE_CONTROL = VALUE_STROKE_DEFAULT; >>>> >>>> Quality: >>>> KEY_COLOR_RENDERING = VALUE_COLOR_RENDER_QUALITY; >>>> KEY_ANTIALIASING = VALUE_ANTIALIAS_ON; >>>> KEY_FRACTIONALMETRICS = VALUE_FRACTIONALMETRICS_ON; >>>> KEY_ALPHA_INTERPOLATION = VALUE_ALPHA_INTERPOLATION_QUALITY; >>>> KEY_INTERPOLATION = VALUE_INTERPOLATION_BILINEAR; >>>> KEY_RENDERING = VALUE_RENDER_QUALITY; >>>> KEY_TEXT_ANTIALIASING = VALUE_TEXT_ANTIALIAS_ON; >>>> KEY_STROKE_CONTROL = VALUE_STROKE_NORMALIZE; >>>> >>>> Cheers, >>>> Nicola. >>>> >>>> >>>> >>>> >>>> >>>> >>>> 2014-03-07 10:32 GMT+01:00 Andrea Aime <andrea.a...@geo-solutions.it>: >>>> >>>> On Fri, Mar 7, 2014 at 10:28 AM, Nicola Lagomarsini < >>>>> nicola.lagomars...@geo-solutions.it> wrote: >>>>> >>>>>> Hi all, >>>>>> >>>>>> I'm going to show some images for comparing the old wmsTileFuser >>>>>> class and its modified version, both in *fullWMS* mode enabled. >>>>>> >>>>>> I made the *fullWMS* parameter configurable from the geowebcache.xml >>>>>> file by adding the <fullWMS>TRUE(or FALSE)</fullWMS> field. >>>>>> >>>>>> I added the possibility for the user to change the image quality by >>>>>> setting an additional WMS parameter called *hints*. The user can >>>>>> choose one of the 3 following values: *speed*, *default*, *quality*. >>>>>> >>>>>> The first image represents the result of a WMS request on a vectorial >>>>>> layer, in image/png format. The other 3 images represent the same WMS >>>>>> request with the new WMS parameter. >>>>>> >>>>>> The second image value represents the result with the *speed* value >>>>>> which takes minor time without any care about the quality. >>>>>> The third image (*default* value selected) provides a better image >>>>>> quality but requires more time than the *speed* configuration. >>>>>> The last image with the *quality* value takes more time than the >>>>>> others but the final image has the best quality between the 4 images. >>>>>> >>>>>> From the results, in fact, it is easy to note that the image created >>>>>> with the *quality* hints has a better quality than that returned by >>>>>> the old WMSTileFuser class. >>>>>> >>>>>> I hope this could help to review the pull requests. >>>>>> >>>>>> P.S. The images are too big to be sent by mail, I add the following >>>>>> links for download: >>>>>> >>>>>> old wms request: >>>>>> https://drive.google.com/file/d/0B_H-B1p4qGi6VVgyVGJPYVV1c1hBMDMzakhPRTZlQTdzRFl3/edit?usp=sharing >>>>>> new wms request with speed hints: >>>>>> https://drive.google.com/file/d/0B_H-B1p4qGi6MEhJR1NxTkV2Tnh0Y3Zza2JJdHNtY0RhZVN3/edit?usp=sharing >>>>>> new wms request with default hints: >>>>>> https://drive.google.com/file/d/0B_H-B1p4qGi6bk5adnNYN2NjRUk/edit?usp=sharing >>>>>> new wms request with quality hints: >>>>>> https://drive.google.com/file/d/0B_H-B1p4qGi6b1RTYktBSjBtYlpOdGdFS3NVWkVIb1Rzd3g4/edit?usp=sharing >>>>>> >>>>>> >>>>> Hi Nicola, >>>>> I'm looking at the outputs, and finding something strange. The quality >>>>> one is definitely much better, for sure, however: >>>>> * the new images are ~20 times larger than the oldwms one (from 34kb >>>>> to 758KB), something is wrong with the png compression parameters I >>>>> suppose >>>>> * I cannot see any difference, visually, between oldwms, new with >>>>> speed, and new with default >>>>> >>>>> Cheers >>>>> Andrea >>>>> >>>>> -- >>>>> == Our support, Your Success! Visit http://opensdi.geo-solutions.itfor >>>>> more information == >>>>> >>>>> Ing. Andrea Aime >>>>> @geowolf >>>>> Technical Lead >>>>> >>>>> GeoSolutions S.A.S. >>>>> Via Poggio alle Viti 1187 >>>>> 55054 Massarosa (LU) >>>>> Italy >>>>> phone: +39 0584 962313 >>>>> fax: +39 0584 1660272 >>>>> mob: +39 339 8844549 >>>>> >>>>> http://www.geo-solutions.it >>>>> http://twitter.com/geosolutions_it >>>>> >>>>> ------------------------------------------------------- >>>>> >>>> >>>> >>>> >>>> -- >>>> == >>>> Our support, Your Success! Visit http://opensdi.geo-solutions.it for >>>> more information. >>>> == >>>> >>>> Ing. Nicola Lagormarsini >>>> Junior Software Engineer >>>> >>>> GeoSolutions S.A.S. >>>> Via Poggio alle Viti 1187 >>>> 55054 Massarosa (LU) >>>> Italy >>>> phone: +39 0584 962313 >>>> fax: +39 0584 1660272 >>>> >>>> http://www.geo-solutions.it >>>> http://twitter.com/geosolutions_it >>>> >>>> ------------------------------------------------------- >>>> >>> >>> >>> >>> -- >>> == >>> Our support, Your Success! Visit http://opensdi.geo-solutions.it for >>> more information. >>> == >>> >>> Ing. Nicola Lagormarsini >>> Junior Software Engineer >>> >>> GeoSolutions S.A.S. >>> Via Poggio alle Viti 1187 >>> 55054 Massarosa (LU) >>> Italy >>> phone: +39 0584 962313 >>> fax: +39 0584 1660272 >>> >>> http://www.geo-solutions.it >>> http://twitter.com/geosolutions_it >>> >>> ------------------------------------------------------- >>> >> >> >> >> -- >> == >> Our support, Your Success! Visit http://opensdi.geo-solutions.it for >> more information. >> == >> >> Ing. Nicola Lagormarsini >> Junior Software Engineer >> >> GeoSolutions S.A.S. >> Via Poggio alle Viti 1187 >> 55054 Massarosa (LU) >> Italy >> phone: +39 0584 962313 >> fax: +39 0584 1660272 >> >> http://www.geo-solutions.it >> http://twitter.com/geosolutions_it >> >> ------------------------------------------------------- >> > > > > -- > == > Our support, Your Success! Visit http://opensdi.geo-solutions.it for more > information. > == > > Ing. Nicola Lagormarsini > Junior Software Engineer > > GeoSolutions S.A.S. > Via Poggio alle Viti 1187 > 55054 Massarosa (LU) > Italy > phone: +39 0584 962313 > fax: +39 0584 1660272 > > http://www.geo-solutions.it > http://twitter.com/geosolutions_it > > ------------------------------------------------------- > -- == Meet us at GEO Business 2014! in London! Visit http://goo.gl/fES3aK for more information. == Ing. Nicola Lagormarsini Junior Software Engineer GeoSolutions S.A.S. Via Poggio alle Viti 1187 55054 Massarosa (LU) Italy phone: +39 0584 962313 fax: +39 0584 1660272 http://www.geo-solutions.it http://twitter.com/geosolutions_it -------------------------------------------------------
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