Latest Contributions by BetsySchenck-Gardner

I was able to add an image to the map after I defined the four corners of the image.  As far as I know, it doesn't read a tfw file or the header of a geotif.  Here's an example of how I got it to work.  The projection of my map was 3857 so my image had to be in the same projection:           var xminValue = -10897188.6297;           var yminValue = 1929703.88984;           var xmaxValue = -8790353.14023;           var ymaxValue = 3759053.72948;           var spatialReferenceValue = 3897;           var hrefValue = "http://www1.ln.ncddc.noaa.gov/website/AGSViewers/JS_Examples/data/amax.png";           var lyrSample = new esri.layers.MapImageLayer();           var lyr = new esri.layers.MapImage({'extent':{'xmin':xminValue,'ymin':yminValue ,'xmax':xmaxValue,'ymax':ymaxValue,'spatialReference':{'wkid':spatialReferenceValue}},'href':hrefValue});           lyrSample.addImage(lyr); Hope this helps. ... View more

I think you got your double quotes and single quotes messed up.  Try this: content+="<td><a href="http://surveyor.slco.org/javamap/mrs_test.cfm?"+layerResults.features.attributes['POINT_NAME']+layerResults.features.attributes['LATITUDE_DD']+ " target="_blank">Mon. Ref Sheet</a></td>"; ... View more

Thanks Derek.  That fixed it.  Didn't realize there were all those empty spaces since you don't see them when you bring the layer up in ArcMap. ... View more

I haven't had much success with .removeAllLayers but I've used the .hide() instead to remove layers from being displayed on a map.  I add and hide layers all the time this way.  I took your kml link and was able to add it to the map, and then hide it from the map. ... View more

Thanks Derek. I really appreciate your help on this. ... View more

I don't know how to do that.  The emoticons are colons. ... View more

<kml>http://edac-dap.northerngulfinstitute.org/erddap/griddap/MODIS_Aqua_3-day_composite_CHL.kml?chl_a[(last)][(17.086376190185547):(31.566356658935547)][(-97.91387176513672):(-78.65940856933594)]&.draw=surface&.vars=longitude|latitude|chl_a&.colorBar=Rainbow||Log|0|50|</kml> ... View more

You might want to try setting your image format to be png32.  By defining the ImageParameters, you can set the format to be png32.  So try the following: var imageParameters = new esri.layers.ImageParameters(); imageParameters.format = "png32"; var lyr = new esri.layers.ArcGISDynamicMapServiceLayer(<dynamicMapService URL>,{"imageParameters":imageParameters}); I tried this recently on some current arrows I was trying to draw that were drawing as white outlines even though they had been defined to be black.  It removed the white outline and made the symbol look clear.  It also worked with points that had halos around them.  I don't know about annotation though but at least you can give it a try. ... View more

Here's how to add a WMS service of a different projection such as 4326 to a basemap (102110): var layer1 = new esri.layers.WMSLayerInfo({name:"1",title:"Rivers"}); var resourceInfo = {               extent: new esri.geometry.Extent(-126.40869140625,31.025390625,-109.66552734375,41.5283203125,{wkid: 4326}),               layerInfos: [layer1]             }; var lyr = new esri.layers.WMSLayer("http://sampleserver1.arcgisonline.com/ArcGIS/services/Specialty/ESRI_StatesCitiesRivers_USA/MapServer/WMSServer",               {resourceInfo: resourceInfo,               visibleLayers: ["1"]             }); map.addLayer(lyr); If you define the resourceInfo, you bypass the getCapabilities call that is executed when you use WMSLayer command ... this means you don't have to use a proxy page ... View more

I think with the use of HTML5, you can drag and drop files into ArcGIS Javascript.  There is ESRI on-line seminar today (Feb 23) talking about this topic.  There is an example of dragging and dropping a local CSV file into a map and having the points plotted on the map.  Look at the HTML5 - File Access with Drag and Drop in the Javascript API Samples. ... View more

Yes.  The data is being served out on an ArcGIS Server here and I access it through its REST url.  You said earlier that you could output your data as a csv.  You could use the dojo's CsvStore function to load your csv file and within the CsvStore function there is a query option to retrieve only those points you want to be displayed.  Here's a snippet that might start you in the right direction:   var species_name = "Karenia brevis";   var dataStore = new dojox.data.CsvStore({url:"data.csv"});   dataStore.fetch({     query:{species: species_name},     onComplete: function(items, request)  {       dojo.forEach(items, function(item, index)  {         var lat = dataStore.getValue(item, "Latitude");         var lon = dataStore.getValue(item, "Longitude");         var symbol = new esri.symbol.SimpleMarkerSymbol();         var latitude = parseFloat(lat);         var longitude = parseFloat(lon);         var geometry = new esri.geometry.Point(longitude,latitude);              geometry = esri.geometry.geographicToWebMercator(geometry);         dataLayer.add(new esri.Graphic(geometry, symbol));       });     },     onError: function(error)  {       alert("Unable to read data file");     }   }); It's a bit more complicated just because you are having to read your points in via a data store vs a map service.  As long as your csv file is on the same server as your JS API, you don't have to use a proxy service.  I don't know how you can retrieve the data you have posted out on ArcGIS Online so you will need to get some help from ESRI about doing that.  I've never done that before. ... View more