Heat Map Widget for ArcGIS Viewer for Flex

ErnestCacciaglia

Though the Heat Map widget appears to work properly, it does not return any features when I attempt to use the query function.  I am querying for string values.  Below, please find the query portion of the widget's config file.  Can anyone tell me what is wrong here?


<outFields>MATERIAL</outFields>
   <useamf>true</useamf>
   <defaultquery>1=1</defaultquery>
   <querytemplate>MATERIAL = 'REPLACE_STR'</querytemplate>
   <types>Other,Wood,Metal</types>
   <type_descs>Material = Other, Material = Wood, Material = Metal</type_descs>


Thanks in advance for any help you can give.

LloydHeberlie

Hi Ernest,

You might check the CaSe of the values in your field MATERIAL?  The queries are case SenSitive.

Returns 132 records.
http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Earthquakes/Since_1970/MapServer/0/query?text=&geometry=&geometryType=esriGeometryPoint&inSR=&spatialRel=esriSpatialRelIntersects&relationParam=&objectIds=&where=Name+LIKE+%27%25CHINA%25%27&time=&returnIdsOnly=false&returnGeometry=true&maxAllowableOffset=&outSR=&outFields=*&f=html

Returns 0 records.
http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Earthquakes/Since_1970/MapServer/0/query?text=&geometry=&geometryType=esriGeometryPoint&inSR=&spatialRel=esriSpatialRelIntersects&relationParam=&objectIds=&where=Name+LIKE+%27%25China%25%27&time=&returnIdsOnly=false&returnGeometry=true&maxAllowableOffset=&outSR=&outFields=*&f=html

See the sample below for an earthquakes query using a LIKE operator on the field Name
The values in the <types></types> markup must match the values in your data (File Geodatabase Featureclass, etc).

Hope this helps,

Lloyd
Esri Flex Team


http://stlouis.esri.com/apps/flexviewer24/index.html?config=heatmap-config-like.xml

<?xml version="1.0" ?>
<configuration>
 <layers>
        <layer>
            <name>Earthquakes HeatMap</name>
            <url>http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Earthquakes/Since_1970/MapServer/0</url&gt;
            <outFields>YYYYMMDD,Magnitude,Num_Injured,Num_Deaths,Name</outFields>
   <useamf>true</useamf>
   <defaultquery>1=1</defaultquery>
   <querytemplate>Name LIKE '%REPLACE_STR%'</querytemplate>
   <types>CHILE,TURKEY,CHINA,PHILIPPINES,JAPAN,IRAN,INDIA</types>
   <type_descs>Chile,Turkey,China,Philippines,Japan,Iran,India</type_descs>
        </layer>
 </layers>
 <ui>
  <widget_dimensions>
   <width>378</width>
   <height>206</height>
  </widget_dimensions>
  <icons>
   <main_icon>i_rainbow.png</main_icon><!-- Icon must exist under assets/images in viewer -->
   <main_label>Main Panel</main_label><!-- Title/label for icon across the top widget panel -->
   <settings_icon>i_options.png</settings_icon>
   <settings_label>Settings Panel</settings_label>
  </icons>
  <refresh_label>refreshing layer...</refresh_label>
  <query>
   <comp_label>Earthquakes by geography:</comp_label>
   <heatmapquery_prompt>default selection</heatmapquery_prompt>
   <featurecount_label> features contained</featurecount_label>
  </query>
  <transparency>
   <comp_label>Transparency:</comp_label>
   <defaulttransparency>0.7</defaulttransparency>
  </transparency>
  <symbol>
   <comp_label>Theme:</comp_label>
   <defaulttheme>RAINBOW</defaulttheme><!-- Must be one of RED_WHITE_BLUE, RAINBOW, or THERMAL -->
  </symbol>
 </ui>
</configuration>