Re: [OpenLayers-Users] overview control

Huub Fleuren Sun, 04 Nov 2007 03:54:33 -0800

Ha Tim,

Right. I guess i did not look hard enough. And i suppose it's clear enough. Relatively lots to be said about the OverviewControl though, maybe change this particular line in the overviewmap.html example anyway?

 var overview = new OpenLayers.Control.OverviewMap(options);

into

 var overview = new OpenLayers.Control.OverviewMap({mapOptions:options});

Regards, Huub

Tim Schaub wrote:

In hopes that these links show up at the top of the google search 
results for OverviewMap, I'll gather doc links here:


If you have trouble with the overview map control, please read:
http://trac.openlayers.org/wiki/Control/OverviewMap

If you want to set custom map options on the overview map control, find 
the bit on "Custom map options" on that page.
http://trac.openlayers.org/wiki/Control/OverviewMap#Custommapoptions-projectionsextentsetc.

If you like reading class documentation, please read:
http://dev.openlayers.org/apidocs/files/OpenLayers/Control/OverviewMap-js.html

If you want to see the bit where it describes the mapOptions property, 
click on the mapOptions property.
http://dev.openlayers.org/apidocs/files/OpenLayers/Control/OverviewMap-js.html#OpenLayers.Control.OverviewMap.mapOptions

If you want to learn by reading code and don't own a text editor, see
http://trac.openlayers.org/browser/trunk/openlayers/lib/OpenLayers/Control/OverviewMap.js

Specifically, you can read about the mapOptions property:
http://trac.openlayers.org/browser/trunk/openlayers/lib/OpenLayers/Control/OverviewMap.js#L68

Or, if you look a few lines farther down, you can read about the 
constructor, which mentions the mapOptions property:
http://trac.openlayers.org/browser/trunk/openlayers/lib/OpenLayers/Control/OverviewMap.js#L76

There, documented :)

Tim

Huub Fleuren wrote:

Hi,

It appears to be so that the options for the overviewmapcontrol must be 
set like

var overviewrd = new OpenLayers.Control.OverviewMap({mapOptions:optionsrd});

Thanks Steven for pointing this out

Even if I read carefully in de docs i suppose that this is documented.

Howefer: in the overviewmap.html example it looks like:

    var overview = new OpenLayers.Control.OverviewMap(options);

Allthough this also works in this case I would suggest that this will be 
corrected in de distribution


Regards,
Huub

Huub Fleuren wrote:

Hi,

I'm not sure but pretty sure that the overviewcontrol for a projection 
like 28992 does not work correctly (it does for 4326). What is a good 
way to go forward with this? Maybe file a trac-ticket?
I' referring to my previous contributions in this thread ...

I tried using only different options (for the map and the 
overview)-(holding this carefully the same), it boils down to the units, 
i guess.


  var optionsll = {
     projection: "EPSG:4326"
    ,maxExtent: new OpenLayers.Bounds( 3.13, 50.45, 7.14,53.32)
    ,maxResolution: 1500
    ,scales:[2500000, 1200000, 600000, 300000, 150000, 75000, 37000, 
12500, 4250]
  };

  var optionsrd = {
     projection: "EPSG:28992"
    ,units:"m"
    ,maxExtent: new OpenLayers.Bounds( 0,300000,250000,650000)
    ,maxResolution: 1500
    ,scales:[2500000, 1200000, 600000, 300000, 150000, 75000, 37000, 
12500, 4250]

  };


Regards, Huub
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Re: [OpenLayers-Users] overview control

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