Latest Contributions by JohnGrayson

‎04-04-2014

Here's another attempt at a jsfiddle that should work: http://jsfiddle.net/99vD9/5/ var elevationServiceUrl = "http://sampleserver4.arcgisonline.com/ArcGIS/rest/services/Elevation/ESRI_Elevation_World/MapServer/exts/ElevationsSOE/ElevationLayers/1/GetElevationAtLonLat" dojo.connect(map, 'onClick', function (evt) { esri.request({ url: elevationServiceUrl, content: { lon: evt.mapPoint.getLongitude(), lat: evt.mapPoint.getLatitude(), f: "json" }, callbackParamName: "callback", }).then(function (response, io) { alert("Elevation = " + response.elevation.toFixed(1) + " meters"); }, function (error, io) { console.error("Unable to get elevation", error); alert("Unable to get elevation..."); }); });

‎03-26-2014

What I normally do in dojo classes and dijits to maintain scope is to make sure I use lang.hitch(...) for my inline or referenced methods. That way I can access the data-dojo-attach-point members directly. Here's a rough example: queryTask.execute(query, lang.hitch(this,postResults)); Then, inside of postResults you can access the members like so: this.fsCounty.set("store", store);

‎02-06-2014

What I've done in the past is to assign a value of 200px to the min-height and min-width properties to the map div via css. I believe this ensured that the map div sizes are not set to zero by external widgets when they are hidden.

‎01-10-2014

Jon is correct, you need to wait until after the map has finished moving to the new location before you can use .getDojoShape().moveToFront(). Here's a modified version of the jsfiddle with the updated code: http://jsfiddle.net/23tDs/

‎12-11-2013

It's been a while since I tried this, but if you have a Graphic that uses a TextSymbol: 1) call map.toScreen() to get x,y screen coordinates of graphic; you might have to make adjustments based on the symbol.xoffset and symbol.yoffset. 2) call graphic.getDojoShape().getTextWidth() for the width, and graphic.symbol.font.size for the height (you might have to make additional adjustments if size is not pixel based). Then add the desired padding. Finally you might have to make additional offset adjustments if any of the coordinates are outside of the map extent. 3) create screen extent based on x, y, width, height, then call map.toMap() to get back real-world coordinates of bounding box. I believe there were a few other minor tweaks that were specific to what I was doing in the app, but this is the overall concept.

‎09-27-2013

Careful, the previous solution assumes the geometry is a single-part polyline, which seems to be ok for this use case, but might not work in all situations, like when the geometry is retrieved from an external source like a Map or Feature Service. var lastPartIdx = polyline.paths.length-1; var lastPntIdx = polyline.paths[lastPartIdx].length - 1; var lastPnt = polyline.getPoint(lastPartIdx , lastPntIdx);

‎09-01-2013

Ken, Try sending 'newExtent' to the console; it's probably incorrect. Seems like the loop to find the selected well should come before you create the extent. Here's another possible approach: function zoomRow(id){ var grid = dijit.byId('grid'); var clickedWell = grid.getItem(id); var selectedWell = null; dojo.forEach(map.graphics.graphics,function(graphic){ if((graphic.attributes) && graphic.attributes.FID === clickedWell.FID){ selectedWell = graphic.geometry; return; } }); if(selectedWell != null){ var distance = 1000; var newExtent = new esri.geometry.Extent({ "xmin": selectedWell.x - distance, "ymin": selectedWell.y - distance, "xmax": selectedWell.x + distance, "ymax": selectedWell.y + distance, "spatialReference":{"wkid":4326} }); map.setExtent(newExtent); } }

‎08-15-2013

Stephen, also, you don't need to use esri.request, just listen for the layer 'onLoad' event and then the initialExtent is a property of the layer. Using a geometry service to project the extent is the way to go. <!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <meta name="viewport" content="initial-scale=1, maximum-scale=1,user-scalable=no"> <title>Zoom to non-WM dynamic layer</title> <link rel="stylesheet" href="http://js.arcgis.com/3.6/js/esri/css/esri.css"/> <style> html, body, #mapDiv { padding: 0; margin: 0; height: 100%; } </style> <script src="http://js.arcgis.com/3.6/"></script> <script> dojo.require("esri.map"); dojo.require("esri.tasks.geometry"); var map; var url = "http://loczy.mfgi.hu/ArcGIS/rest/services/TJAM/surf_ujfalu_t/MapServer/" var gsUrl = "http://server.domain.com/arcgis/rest/services/Geometry/GeometryServer"; // url to your geometry service function init(){ map = new esri.Map("mapDiv",{basemap: "gray"}); var dynamicMapServiceLayer = new esri.layers.ArcGISDynamicMapServiceLayer(url); dynamicMapServiceLayer.on('load',function(){ var projectParams = new esri.tasks.ProjectParameters(); projectParams.geometries = [dynamicMapServiceLayer.initialExtent]; projectParams.outSR = map.spatialReference; var gs = new esri.tasks.GeometryService(gsUrl); gs.project(projectParams).then(function(projectedGeometries){ var initialExtentWM = projectedGeometries[0]; map.setExtent(initialExtentWM); }); }); map.addLayer(dynamicMapServiceLayer); } dojo.ready(init); </script> </head> <body> <div id="mapDiv"></div> </body> </html>

‎07-29-2013

Import GeoFence changes string values by adding underscores for spaces (and other characters) which then causes the GeoTagger to add new field with a string value that the Field Enricher (from the same Feature Service that was used to import the geofences) to not work because the field values no longer match. Any suggestions on how to workaround this issue?

‎03-06-2013

It's expecting an array of geometries; try this: params.geometries = [mp];

‎02-25-2013

If you want to modify the text displayed in the dialog, look at 'esri.bundle.identity.info' string. Event though the '${server}' and '${resource}' template parts must be present, but you can hide them via css. Also, the dialog and buttons are available to manipulate only after the dialog is created. esri.bundle.identity.info = "Please sign in to MYSITE.<span class='dijitOffScreen'>${server}${resource}</span>"; dojo.connect(esri.id,'onDialogCreate',function(){ esri.hide(esri.id.dialog.closeButtonNode); esri.hide(esri.id.dialog.btnCancel_.domNode); });

‎02-13-2013

Thank you everybody for the continued support; we're getting close to releasing the Elevations SOE for 10.1. We've had to make some breaking changes to accommodate requested use cases and it still needs some more testing. Also, we're currently trying to add support for elevation datasets that have NoData values, something we have not done in the past. We do not have a release date at this time, but I'll try to have it ready by the Dev Summit. Please do not use this sample code in production environments or in mission critical situations; it's just a sample.

‎01-04-2013

You probably don't need 'dojo.connect(featureLayerEdit, "onEditsComplete", addResultsComplete);', instead just use the inline callback function in the applyEdits call. Also, you're connecting this event many times, once for each map click; not sure if that is making a difference. I would also hitch the inline calls to make sure you have the proper context. Also, you need to get the updated feature from the feature layer again as the one currently in memory might not have the correct ObjectID that was assigned on the server. This last step might not be necessary depending on what you need to do; in your case the ObjectID is provided by the FeatureEditResult object. featureLayerEdit.applyEdits([graphic], null, null, dojo.hitch(this, function(addResults){ if(addResult.success){ var query = new esri.tasks.Query(); query.objectIds = [addResult.objectId]; query.outFields = ["*"]; featureLayerEdit.queryFeatures(query, dojo.hitch(this, function(featureSet){ if(featureSet.features.length > 0){ var newFeature = featureSet.features[0]; newFeature.attributes["6"] = addResult.objectId + "_SOMEOTHERVAL"; featureLayerEdit.applyEdits(null, [newFeature], null); } })); } }); I have not tested this, but it should be close to what you need.

‎12-19-2012

I wonder if calling esri.geometry.normalizeCentralMeridian(...) would help in this situation?

‎12-06-2012

I haven't tested this with the latest api, but try this: editor._updateCurrentFeature(dojo.hitch(this,function(){ editor._clearSelection(false); }));

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Latest Contributions by JohnGrayson

Re: ESRI_ELEVATION_WORLD GetElevationAtLongLat example

Re: Struggling to populate FilteringSelect in my custom widget

Re: Map interface trashed if map div is hidden and browser resize occurs

Re: Issue with using map.centerAt and features not drawing when zoomed in - Firefox

Re: Background or highlight on textSymbol

Re: How to find Begin and End points of a polyline using Arcgis Javascript

Re: Zoom function screws up map display

Re: How to zoom to a non-Web Mercator extent?

Import GeoFence changes string value which causes Field Enricher to not work

Re: Project function fails - Cannot read property 'spatialReference' of undefined

Re: How to extend the IdentityManger or IdentityManagerBase

Re: Elevation SOE code ... upgrade 10.1

Re: onEditsComplete to update another field in the feature

Re: Retrieving actual coordinates on wrapped map

Re: Start/stop edit layers

Re: Create Label Symbol for Interstate

Re: Is it the case that colormap raster functions ...

Re: Is it the case that colormap raster functions ...

Re: Size of the webstyle symbol on the map

Re: Whitespace appears when we drag the map and re...

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