Hi Tom about a year ago i did some modifs to the ncwms code used in thredds to enable some better control via the URL, namely a scale factor for changing the size of the arrows as a function of the amplitude (not what you'r talking about here though i realise) unfortunately (embarassingly) i struggled with git to not consider mixed line endings as new code and hence the modifs where never submitted for consideration by ncWMS/thredds people. (i believe that) the relevant code is here: https://github.com/Unidata/ncWMS/blob/master/src/java/uk/ac/rdg/resc/ncwms/graphics/ImageProducer.java and it's the stepScale and vectorScale that should be parameterisable from the URL.. from what i understand you want to touch the stepScale, currently you see this is derived from vectorScale (unless someone more knowledgable corrects me !). in fact i think you want the step to be linked to ground units instead of pixel units which is more complex i guess. i'd be happy to send you the (minor) mods i made if they'd be useful, although they didn't address your exact requirement. -i -----Message d'origine----- De : thredds-bounces@xxxxxxxxxxxxxxxx [mailto:thredds-bounces@xxxxxxxxxxxxxxxx] De la part de tom cook Envoyé : Wednesday, 16 April 2014 19:05 À : thredds community Objet : [thredds] Help with WMS vector style HI, I'm using the following WMS call http://myserver:8080/thredds/wms/HFRNet/USWC/6km/hourly/RTV?LAYERS=surface_sea_water_velocity&ELEVATION=0&TIME=2014-04-15T00%3A00%3A00.000Z&TRANSPARENT=true&STYLES=vector%2Frainbow&CRS=EPSG%3A4326&COLORSCALERANGE=-0.5%2C0.5&NUMCOLORBANDS=20&LOGSCALE=false&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&FORMAT=image%2Fpng&SRS=EPSG%3A4326&BBOX=-118.63619699146,33.586096075485,-118.24135621692,33.894565430591&WIDTH=768&HEIGHT=600 and get back the attached figure. My problem is that this is data gridded to a 6km resolution, but vectors are returned at ~1km resolution. Is there anyway to change this behavior in the WMS call? It doesn't seem like there are any applicable settings in the wmsConfig.xml or catalog.xml. Thanks, Tom
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