topic Re: ArcGIS Online zoom in beyond 1:1250? in ArcGIS Online Questions

ArcGIS Online zoom in beyond 1:1250?

Josef_Strobl — Thu, 06 Feb 2014 20:01:41 GMT

working with an image service published from ArcGIS Server, I cannot zoom in further into this 2-3cm resolution image, even though no min/max visibility scales are set. Is there any 'hard' limit? Any way around this? thanks for any pointers!

Re: ArcGIS Online zoom in beyond 1:1250?

AdamInglis — Fri, 18 Jul 2014 00:08:36 GMT

I would also like to zoom in beyond 1:1,128 to 1:564 or 1:282. We are evaluating using collector with a survey grade GPS to capture infrastructure with 5 cm accuracy. Not having the ability to zoom close enough is forcing us to use ArcPad on the GPS units. Is there a solution planning for this?

Re: ArcGIS Online zoom in beyond 1:1250?

AnthonyGiles — Fri, 18 Jul 2014 07:25:14 GMT

Adam,

You can create your own basemaps and put them on to collector, there is a blog that shows you how to do it here:

Using your own Basemap layers with Collector for ArcGIS | ArcGIS Blog‌

Re: ArcGIS Online zoom in beyond 1:1250?

DavidJenkins — Fri, 18 Jul 2014 15:03:15 GMT

Anthony,

Are you saying that the zoom level of ArcGIS Online is dependent upon the tiling level of a published basemap? It makes sense but I've never thought of it. It will be something I'll have to try. However, using the javascript api I've always had to add additional zoom levels through code in order for it to work and then the basemaps would display a message indicating that the tile was not available at that scale.

Zooming in beyond the preset levels is important to my work and I'm always having to look for work-arounds. For ArcGIS online, I have not yet been successful. I'm going to check out publishing my own basemap and see if that works.

Thanks for the idea.

Re: ArcGIS Online zoom in beyond 1:1250?

AnthonyGiles — Fri, 18 Jul 2014 16:15:51 GMT

As far as I can tell collector is limited to the scales you have set in your cache, when you use the javascript API it now makes use if resampling allowing you to zoom in past the lowest cache layer, see this blog:

Welcome to Resampling! | ArcGIS Blog‌

Re: ArcGIS Online zoom in beyond 1:1250?

JeffPace — Fri, 18 Jul 2014 16:24:10 GMT

The zoom level in javascript is set by the tile levels of the first map loaded. Once you hit the max level, you cannot zoom in further.

You have two options. Publish/use your own basemap with additional levels, and ensure that basemap is loaded FIRST

Create you map object with a custom set of LODs (levels of detail) specifying more levels.

We do the later, since our basemap as 0-20 levels (we will be adding level 21 and 22 soon, 20 is 1:564, 21 1:282, 22 1:141) and load the custom LODs to override the zoom scales.

this.map = new Map("map", 
{ infoWindow: popup, 
basemap: "streets", 
autoResize: true, 
sliderStyle: style, 
logo: false, 
showAttribution: false, 
lods: lods, 
minZoom:10 });

with lods

var lods =

[

{

"level": 0,

"resolution": 156543.03392800014,

"scale": 5.91657527591555E8

{

"level": 1,

"resolution": 78271.51696399994,

"scale": 2.95828763795777E8

{

"level": 2,

"resolution": 39135.75848200009,

"scale": 1.47914381897889E8

{

"level": 3,

"resolution": 19567.87924099992,

"scale": 7.3957190948944E7

{

"level": 4,

"resolution": 9783.93962049996,

"scale": 3.6978595474472E7

{

"level": 5,

"resolution": 4891.96981024998,

"scale": 1.8489297737236E7

{

"level": 6,

"resolution": 2445.98490512499,

"scale": 9244648.868618

{

"level": 7,

"resolution": 1222.992452562495,

"scale": 4622324.434309

{

"level": 8,

"resolution": 611.4962262813797,

"scale": 2311162.217155

{

"level": 9,

"resolution": 305.74811314055756,

"scale": 1155581.108577

{

"level": 10,

"resolution": 152.87405657041106,

"scale": 577790.554289

{

"level": 11,

"resolution": 76.43702828507324,

"scale": 288895.277144

{

"level": 12,

"resolution": 38.21851414253662,

"scale": 144447.638572

{

"level": 13,

"resolution": 19.10925707126831,

"scale": 72223.819286

{

"level": 14,

"resolution": 9.554628535634155,

"scale": 36111.909643

{

"level": 15,

"resolution": 4.77731426794937,

"scale": 18055.954822

{

"level": 16,

"resolution": 2.388657133974685,

"scale": 9027.977411

{

"level": 17,

"resolution": 1.1943285668550503,

"scale": 4513.988705

{

"level": 18,

"resolution": 0.5971642835598172,

"scale": 2256.994353

{

"level": 19,

"resolution": 0.29858214164761665,

"scale": 1128.497176

{

"level": 20,

"resolution": 0.14929107082380833,

"scale": 564.248588

}

];

Re: ArcGIS Online zoom in beyond 1:1250?

AdamInglis — Fri, 18 Jul 2014 17:49:29 GMT

We are using our own tile packaged basemaps loaded onto our iPads through iTunes, however I still seem to be encountering the max zoom level of 1:1,128. This make sense because we don't have the option when making the tile packages for greater detail than 1:1,128. Is there a way around this?

I should mention we do not have ArcServer and we are relying solely on ArcGIS Online.

Re: ArcGIS Online zoom in beyond 1:1250?

JeffPace — Fri, 18 Jul 2014 17:59:31 GMT

Right, since you are choosing ArcGIS Online format, you can only go up to 20 (0-19). Under tiling scheme, you need to choose custom, and then add your two levels of detail

Re: ArcGIS Online zoom in beyond 1:1250?

AdamInglis — Fri, 18 Jul 2014 18:38:11 GMT

Excellent, got it figured, thanks. It just involved adding some XML code to the conf.xml file from my previous package.

			<LODInfo xsi:type='typens:LODInfo'>
				<LevelID>20</LevelID>
				<Scale>564.24858800000005</Scale>
				<Resolution>0.14929107082380849</Resolution>
			</LODInfo>
			<LODInfo xsi:type='typens:LODInfo'>
				<LevelID>21</LevelID>
				<Scale>282.124294000000025</Scale>
				<Resolution>0.074645535411904245</Resolution>
			</LODInfo>
			<LODInfo xsi:type='typens:LODInfo'>
				<LevelID>22</LevelID>
				<Scale>141.0621470000000125</Scale>
				<Resolution>0.0373227677059521225</Resolution>
			</LODInfo>

Re: ArcGIS Online zoom in beyond 1:1250?

JeffPace — Fri, 18 Jul 2014 19:24:02 GMT

Perfect. Using a tiling scheme works as well. If you found my post helpful, please mark it as helpful or as answered.

Re: ArcGIS Online zoom in beyond 1:1250?

AdamInglis — Fri, 18 Jul 2014 19:27:29 GMT

Hi Jeff, I was looking for the helpful or answered option for your last post, but the best I could do was Like it. Maybe because I hijacked Josef's discussion I don't have permissions to mark it answered.

Re: ArcGIS Online zoom in beyond 1:1250?

DavidJenkins — Fri, 18 Jul 2014 20:02:07 GMT

Yes I believe you need to be the author of the post to mark it as answered. My only options are like, reply or report as abuse... But, it was very helpful. Thanks.

Re: ArcGIS Online zoom in beyond 1:1250?

JeffPace — Fri, 18 Jul 2014 20:36:24 GMT

All good thank you

Re: ArcGIS Online zoom in beyond 1:1250?

JeffPace — Fri, 18 Jul 2014 20:37:44 GMT

Timothy Hales‌ so here is a situation where its an old migrated post that we finally got sorted out and now need to mark as answered. How do we do that ? Jim Barry‌

Re: ArcGIS Online zoom in beyond 1:1250?

JimBarry — Fri, 18 Jul 2014 21:18:08 GMT

Working on it. Details:

One of the good things about vBulletin was that every thread and every post had its own unique URL. We used that in order to move stuff over and fully redirect everything. We have a database of all reply posts that were marked as the answer (the green check mark) either by the original poster, and MVP, or a Moderator. We have to get that information moved over asap. Until then it's not even possible for us to manually mark them one-off unfortunately.

Re: ArcGIS Online zoom in beyond 1:1250?

EdwardOConnor — Fri, 19 Feb 2016 18:54:15 GMT

Thanks for sharing this, very helpful.

Re: ArcGIS Online zoom in beyond 1:1250?

RobCahalan — Thu, 27 Apr 2017 19:15:35 GMT

I know this is an old thread but this was very helpful. I found my tiling scheme file under C:\Program Files (x86)\ArcGIS\Desktop10.5\TilingSchemes and added in the few lines of xml noted above. I am uploading UAV imagery to ArcGIS Online and kept running in the zoom issue until I found this...Thanks!

Re: ArcGIS Online zoom in beyond 1:1250?

JeffWard1 — Wed, 19 Dec 2018 14:16:18 GMT

ArcGIS Pro tiling schemes are found at "C:\Program Files\ArcGIS\Pro\Resources\TilingSchemes"

#LOD #TilingSchemes