Hello, I am using BaseMapGallery to give user the ability to customize map. I have Two Questions : * How to add custom basemaps ? (the default arcgis basemaps are not all available in the widget) * How to get selected basemap when the map basemap change ? Regards Mohammed

In that case just use the portalItem Id: map . watch ( 'basemap' , function ( evt ) { //console.info(evt.portalItem.id); switch ( evt . portalItem . id ) { case 'd8855ee4d3d74413babfb0f41203b168' : sbasemap = 'streets' ; break ; case '86de95d4e0244cba80f0fa2c9403a7b2' : sbasemap = 'satellite' ; break ; case '413fd05bbd7342f5991d5ec96f4f8b18' : sbasemap = 'hybrid' ; break ; case '6e03e8c26aad4b9c92a87c1063ddb0e3' : sbasemap = 'topo' ; break ; case '8b3b470883a744aeb60e5fff0a319ce7' : sbasemap = 'gray' ; break ; case '25869b8718c0419db87dad07de5b02d8' : sbasemap = 'dark-gray' ; break ; case '48b8cec7ebf04b5fbdcaf70d09daff21' : sbasemap = 'oceans' ; break ; case '509e2d6b034246d692a461724ae2d62c' : sbasemap = 'national-geographic' ; break ; case 'aab054ab883c4a4094c72e949566ad40' : sbasemap = 'terrain' ; break ; case '5d2bfa736f8448b3a1708e1f6be23eed' : sbasemap = 'osm' ; break ; default : sbasemap = 'noStringConstant' ; } console . info ( sbasemap ) ; } ) ;

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Customize BaseMapGallery & get selected BaseMap

EssaddekMohammed

Hello,

I am using BaseMapGallery to give user the ability to customize map.

I have Two Questions :

How to add custom basemaps ? (the default arcgis basemaps are not all available in the widget)
How to get selected basemap when the map basemap change ?

Regards

Mohammed

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Accepted answers

rscheitlin

In that case just use the portalItem Id:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; map<SPAN class="punctuation token">.</SPAN><SPAN class="token function">watch</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="string token">'basemap'</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="keyword token">function</SPAN><SPAN class="punctuation token">(</SPAN>evt<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">{</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <SPAN class="comment token">//console.info(evt.portalItem.id);</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <SPAN class="keyword token">switch</SPAN><SPAN class="punctuation token">(</SPAN>evt<SPAN class="punctuation token">.</SPAN>portalItem<SPAN class="punctuation token">.</SPAN>id<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">{</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <SPAN class="keyword token">case</SPAN> <SPAN class="string token">'d8855ee4d3d74413babfb0f41203b168'</SPAN><SPAN class="punctuation token">:</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; sbasemap <SPAN class="operator token">=</SPAN> <SPAN class="string token">'streets'</SPAN><SPAN class="punctuation token">;</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <SPAN class="keyword token">break</SPAN><SPAN class="punctuation token">;</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <SPAN class="keyword token">case</SPAN> <SPAN class="string token">'86de95d4e0244cba80f0fa2c9403a7b2'</SPAN><SPAN class="punctuation token">:</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; sbasemap <SPAN class="operator token">=</SPAN> <SPAN class="string token">'satellite'</SPAN><SPAN class="punctuation token">;</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <SPAN class="keyword token">break</SPAN><SPAN class="punctuation token">;</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <SPAN class="keyword token">case</SPAN> <SPAN class="string token">'413fd05bbd7342f5991d5ec96f4f8b18'</SPAN><SPAN class="punctuation token">:</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; sbasemap <SPAN class="operator token">=</SPAN> <SPAN class="string token">'hybrid'</SPAN><SPAN class="punctuation token">;</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <SPAN class="keyword token">break</SPAN><SPAN class="punctuation token">;</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <SPAN class="keyword token">case</SPAN> <SPAN class="string token">'6e03e8c26aad4b9c92a87c1063ddb0e3'</SPAN><SPAN class="punctuation token">:</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; sbasemap <SPAN class="operator token">=</SPAN> <SPAN class="string token">'topo'</SPAN><SPAN class="punctuation token">;</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <SPAN class="keyword token">break</SPAN><SPAN class="punctuation token">;</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <SPAN class="keyword token">case</SPAN> <SPAN class="string token">'8b3b470883a744aeb60e5fff0a319ce7'</SPAN><SPAN class="punctuation token">:</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; sbasemap <SPAN class="operator token">=</SPAN> <SPAN class="string token">'gray'</SPAN><SPAN class="punctuation token">;</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <SPAN class="keyword token">break</SPAN><SPAN class="punctuation token">;</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <SPAN class="keyword token">case</SPAN> <SPAN class="string token">'25869b8718c0419db87dad07de5b02d8'</SPAN><SPAN class="punctuation token">:</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; sbasemap <SPAN class="operator token">=</SPAN> <SPAN class="string token">'dark-gray'</SPAN><SPAN class="punctuation token">;</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <SPAN class="keyword token">break</SPAN><SPAN class="punctuation token">;</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <SPAN class="keyword token">case</SPAN> <SPAN class="string token">'48b8cec7ebf04b5fbdcaf70d09daff21'</SPAN><SPAN class="punctuation token">:</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; sbasemap <SPAN class="operator token">=</SPAN> <SPAN class="string token">'oceans'</SPAN><SPAN class="punctuation token">;</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <SPAN class="keyword token">break</SPAN><SPAN class="punctuation token">;</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <SPAN class="keyword token">case</SPAN> <SPAN class="string token">'509e2d6b034246d692a461724ae2d62c'</SPAN><SPAN class="punctuation token">:</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; sbasemap <SPAN class="operator token">=</SPAN> <SPAN class="string token">'national-geographic'</SPAN><SPAN class="punctuation token">;</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <SPAN class="keyword token">break</SPAN><SPAN class="punctuation token">;</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <SPAN class="keyword token">case</SPAN> <SPAN class="string token">'aab054ab883c4a4094c72e949566ad40'</SPAN><SPAN class="punctuation token">:</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; sbasemap <SPAN class="operator token">=</SPAN> <SPAN class="string token">'terrain'</SPAN><SPAN class="punctuation token">;</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <SPAN class="keyword token">break</SPAN><SPAN class="punctuation token">;</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <SPAN class="keyword token">case</SPAN> <SPAN class="string token">'5d2bfa736f8448b3a1708e1f6be23eed'</SPAN><SPAN class="punctuation token">:</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; sbasemap <SPAN class="operator token">=</SPAN> <SPAN class="string token">'osm'</SPAN><SPAN class="punctuation token">;</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <SPAN class="keyword token">break</SPAN><SPAN class="punctuation token">;</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <SPAN class="keyword token">default</SPAN><SPAN class="punctuation token">:</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; sbasemap <SPAN class="operator token">=</SPAN> <SPAN class="string token">'noStringConstant'</SPAN><SPAN class="punctuation token">;</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <SPAN class="punctuation token">}</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; console<SPAN class="punctuation token">.</SPAN><SPAN class="token function">info</SPAN><SPAN class="punctuation token">(</SPAN>sbasemap<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <SPAN class="punctuation token">}</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

All comments

EssaddekMohammed

Riobert,

I mean by that :

The BasemapGallery widget displays a collection images representing basemaps from ArcGIS.com or a user-defined set of map or image services.

I don't find all basemaps mentionned in this URL : Map | API Reference | ArcGIS API for JavaScript 4.9.

I will try the given code.

Regards.

rscheitlin

Mohammed,

1. What do you mean not all the default basemaps are available?

The BasemapGallery widget displays a collection images representing basemaps from ArcGIS.com or a user-defined set of map or image services.

2. You can watch the basemap property or just check the basemap property.

map<SPAN class="punctuation token">.</SPAN><SPAN class="token function">watch</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="string token">'basemap'</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="keyword token">function</SPAN><SPAN class="punctuation token">(</SPAN>evt<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">{</SPAN>
&nbsp; console<SPAN class="punctuation token">.</SPAN><SPAN class="token function">info</SPAN><SPAN class="punctuation token">(</SPAN>evt<SPAN class="punctuation token">.</SPAN>title<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="punctuation token">}</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>‍‍‍‍<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

console<SPAN class="punctuation token">.</SPAN><SPAN class="token function">info</SPAN><SPAN class="punctuation token">(</SPAN>map<SPAN class="punctuation token">.</SPAN>basemap<SPAN class="punctuation token">.</SPAN>title<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN><SPAN class="line-numbers-rows"><SPAN>‍</SPAN></SPAN>

EssaddekMohammed

I am using 4.9

rscheitlin

Mohammed,

What version of the JS API is this question about?

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