I basically have the spec to print my map with the desired layers, except for one property that I have not been able to include in the geojson string for the features. I am using OpenLayers Version 2.12. The spec is as follows:
http://mydomain:8080/print/pdf/print.pdf?spec={ <http://mydomain:8080/print/pdf/print.pdf?spec=%7b%22layout%22:%22Letter> "layout":"Letter portrait","srs":"EPSG:3857","units":"ft","dpi":300,"mapTitle":"Printed from mydomain.com","layers":[{"baseURL":"http://a.tile.openstreetmap.org/","opaci ty":1,"singleTile":false,"type":"OSM","maxExtent":[-20037508.3392, -20037508.3392, 20037508.3392, 20037508.3392],"tileSize":[256, 256],"extension":"png","resolutions":[156543.03390625, 78271.516953125, 39135.7584765625, 19567.87923828125, 9783.939619140625, 4891.9698095703125, 2445.9849047851562, 1222.9924523925781, 611.4962261962891, 305.74811309814453, 152.87405654907226, 76.43702827453613, 38.218514137268066, 19.109257068634033, 9.554628534317017, 4.777314267158508, 2.388657133579254, 1.194328566789627, 0.5971642833948135]},{"baseURL":"http://mydomain:8080/geoserver/wv_data/wms"; ,"opacity":1,"singleTile":true,"customParams":{},"type":"WMS","layers":["wv_ data:wv_tax_districts","wv_data:wv_county","wv_data:wv_state"],"format":"ima ge/png","styles":[],"transparent":true},{"type":"Vector","styles":{"1":{"str okeColor":"#000000","strokeOpacity":0.5,"fillColor":"#99FF00","fillOpacity": 0.3}},"styleProperty":"_gx_style","geoJson":{"type":"FeatureCollection","fea tures":[{"type":"Feature","properties":{"_gx_style":1, "rootid":"03-04- 22-0009-0000-0000"},"geometry":{"type":"MultiPolygon","coordinates":[[[[-909 6521.031054683,4598298.723518376],[-9096508.058329634,4598338.853603111],[-9 096046.00308546,4598028.754632352],[-9096054.460792316,4598022.619581236],[- 9096067.676031547,4598007.215465028],[-9096095.49339352,4597959.168712229],[ -9096122.568241857,4597918.154104033],[-9096160.503799679,4597875.767949502] ,[-9096180.603656983,4597852.659764481],[-9096203.843161233,4597823.77633773 ],[-9096209.261893097,4597816.083499497],[-9096211.57365225,4597811.60256099 8],[-9096216.243212458,4597804.553092468],[-9096220.114133514,4597799.894358 914],[-9096224.773759445,4597794.285915068],[-9096235.60818699,4597783.98821 5557],[-9096257.2638415,4597768.519091412],[-9096269.681709073,4597763.96016 8759],[-9096296.739037376,4597752.274799273],[-9096323.073627673,4597750.158 696852],[-9096348.661872733,4597743.58521329],[-9096357.126164695,4597741.09 7003529],[-9096368.756827036,4597737.691704096],[-9096381.859516736,4597735. 040114307],[-9096402.03263128,4597729.783522871],[-9096420.59772951,4597725. 1641588705],[-9096450.813370682,4597721.1049796855],[-9096486.408399766,4597 713.816178738],[-9096517.384951781,4597706.563017243],[-9096552.962476604,45 97702.4620325295],[-9096570.043988377,4597701.054553932],[-9096614.952565616 ,4597696.8810641905],[-9096628.171333157,4597695.720208254],[-9096894.676004 061,4598085.73112343],[-9096732.521829559,4598160.354191241],[-9096521.03105 4683,4598298.723518376]]]]},"id":"mineral.2217","crs":{"type":"name","proper ties":{"name":"urn:ogc:def:crs:OGC:1.3:CRS84"}}},{"type":"Feature","properti es":{"_gx_style":1, "rootid":"03-04- 24-0013-0000-0000"},"geometry":{"type":"MultiPolygon","coordinates":[[[[-910 0885.931437397,4595830.641061093],[-9100618.955667052,4595813.922834314],[-9 100544.320274929,4595809.239025285],[-9100219.47980554,4595780.614032372],[- 9100227.273714347,4595722.363540661],[-9100240.120513162,4595604.891296111], [-9100465.568072638,4595705.5650386475],[-9100553.996820783,4595730.16615384 2],[-9100619.003285743,4595747.167447766],[-9100660.777464475,4595758.084937 326],[-9100824.032890169,4595685.371798294],[-9100840.055007722,4595682.9334 84964],[-9100849.432155106,4595708.18948892],[-9100863.225394715,4595714.986 957449],[-9100867.942023106,4595731.076151991],[-9100887.97905841,4595729.17 8693363],[-9100888.634211006,4595738.964712751],[-9100881.922785217,4595759. 736949781],[-9100879.965270448,4595801.200690653],[-9100885.931437397,459583 0.641061093]]]]},"id":"mineral.2237","crs":{"type":"name","properties":{"nam e":"urn:ogc:def:crs:OGC:1.3:CRS84"}}}]},"opacity":1,"name":"Selected Mineral Tracts"}],"pages":[{"center":[-9098467.3186875,4596971.8698045],"scale":1200 0,"rotation":0}]} I have highlighted the property that I need to include in the spec. I have tried to add it to the geoJson representing the feature by using the following code: var featureFormat = new OpenLayers.Format.GeoJSON(); var featureGeoJson = featureFormat.write.call( featureFormat, feature); featureGeoJson.properties = OpenLayers.Util.extend({ _gx_style: 1 },featureGeoJson.properties); The problem seems to be that featureGeoJson.properties is not defined. I know that featureGeoJson is correct because it contains all of the feature information. My problem is trying to insert _gx_style: 1 as a property into the GeoJson. Without it MapFish gives the following error: 2014-02-14 16:52:29,158 ERROR [org.mapfish.print.servlet.BaseMapServlet] - Error while generating PDF DocumentException: org.mapfish.print.JsonMissingException: attribute [spec.layers[2].styles.] missing at org.mapfish.print.utils.PJsonObject.getJSONObject(PJsonObject.java:134) at org.mapfish.print.map.renderers.vector.StyledMfGeoFactory.createFeature(Styl edMfGeoFactory.java:52) at org.mapfish.geo.MfGeoJSONReader.decodeFeature(MfGeoJSONReader.java:84) at org.mapfish.geo.MfGeoJSONReader.decodeFeatureCollection(MfGeoJSONReader.java :75) at org.mapfish.geo.MfGeoJSONReader.decode(MfGeoJSONReader.java:63) at org.mapfish.print.map.readers.VectorMapReader.<init>(VectorMapReader.java:75 ) at org.mapfish.print.map.readers.VectorMapReader$Factory.create(VectorMapReader .java:57) at org.mapfish.print.map.readers.MapReaderFactoryFinder.create(MapReaderFactory Finder.java:39) ... Any suggestions that you may have are greatly appreciated. Thanks, Jerome Wendell
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