nav[aria-label="Primary Navigation"] { padding: 0; & ul { list-style: none; width: 100%; display: flex; flex-direction: row; justify-content: start; align-items: start; gap: 30px; padding: 0; & li { margin: 0; } & ul li { list-style: none; } } }

ZoomOut problem

MaximSpikin

Hi,

ArcGIS Server 10
Silverlight API 2.1

Create Map and add Tiled Layers
ZoomIn ZoomOut work fine, but when i change SnapToLevels = true
ZoomOut with ? mouse whell and a "-" button doesn't work
Image twitches, but doesn't change scale

Vind meer berichten getagd met

Accepted answers

All comments

MaximSpikin

Problem solved!
Everything turned out to be much easier -
In the Level of Detail every successive scale
should be two times begger or smaller than the current scale.

Example
Scale: 250 000
Scale: 100 000
Scale: 50 000
Scale: 25 000

DominiqueBroux

For the moment, I am in lack of idea:(.

You have never answered to my question : 'Can you reproduce the issue with a public tiled map service or is it specific to your service? '

MaximSpikin

Hi,
my problem has not been solved yet.

I will explain one more time:
1) I create a map, add a tiled cached layer,
    everything works perfectly - zooming in and zooming out
2) I activate SnapToLevels,
    ZoomIn to the next scale (for example, from 300 000 to 100 000),
    but I cannot zoom out back (from 100 000 to 300 000),
    the map is jerking like in repainting, but does not go back to the initial scale.

What should I do?
Could you give me some piece of advice?

MaximSpikin

Can you zoom out by using the navigation control?
Can you reproduce the issue with a public tiled map service or is it specific to your service?

1. No, If I once ZoomIn, I can't scale back in any way - mouse wheel, "-" and "-" Navigation control
example
load map zoom - 300 000
mouse wheel zoom in - 100 000
mouse wheel zoom out - or press "-" or click "-" Navigation control - NOTHING Zoom = 100 000
mouse wheel zoom in - 25 000
mouse wheel zoom out - or press "-" or click "-" Navigation control - NOTHING Zoom = 25 000

2. i will try

DominiqueBroux

Can you zoom out by using the navigation control?
Can you reproduce the issue with a public tiled map service or is it specific to your service?

MaximSpikin

After zooming in using the wheel or +, I doesn't zoom out back
but if i use ZoomToResolution(6,61459656252646) i get zoom 300 000

and "-" button in Navigation Control - doesn't change scale

DominiqueBroux

Your minimum scale is 1:300000 (which is relatively high) so you will never be able to zoom out more than this scale.

After zooming in using the wheel or +, can you zoom out back or are all zoom out impossible whatever the initial state?

MaximSpikin

Levels of Detail: (# Levels: 5)
Level ID: 0 [Start Tile, End Tile]
Resolution: 79,3751587503175
Scale: 300000
Level ID: 1 [Start Tile, End Tile]
Resolution: 26,4583862501058
Scale: 100000
Level ID: 2 [Start Tile, End Tile]
Resolution: 6,61459656252646
Scale: 25000
Level ID: 3 [Start Tile, End Tile]
Resolution: 1,32291931250529
Scale: 5000
Level ID: 4 [Start Tile, End Tile]
Resolution: 0,132291931250529
Scale: 500

What next?

DominiqueBroux

Please check what are the level of details of your tiled layer.
Example : http://services.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer

Doe mee aan het gesprek

Aangemelde leden kunnen berichten plaatsen, updates volgen en meer. Nieuw hier? Registreer een gratis account.

Snelle Links

Community Help
Find useful guides, FAQs, and documents to help you navigate and make the most of Esri Community.