AW: [OpenLayers-Users] how to change the size of OpenLayers.Layer.Image

[Arnd Wippermann]

Hi,

You have to know the width and height in map units and the insert point for
your image.

Say x0,y0 und w,h im map units, then

imgLayer.extent=new OpenLayers.Bounds(x0,y0,x0+w,y0+h);

Here you can see, how it works:
http://gis.ibbeck.de/OLClient/examples/ArcGIS93Rest.html
 
Regards,
Arnd


-----Ursprüngliche Nachricht-----
Von: JK Chen [mailto:jk.chen at sdl.usu.edu] 
Gesendet: Donnerstag, 25. August 2011 16:23
An: arnd.wippermann at web.de
Cc: users at openlayers.org
Betreff: RE: [OpenLayers-Users] how to change the size of
OpenLayers.Layer.Image

Suppose my image is w and h, how I code? Into extent? Why?

-----Original Message-----
From: arnd.wippermann at web.de [mailto:arnd.wippermann at web.de]
Sent: Wednesday, August 24, 2011 6:20 PM
To: JK Chen
Cc: users at openlayers.org
Subject: AW: [OpenLayers-Users] how to change the size of
OpenLayers.Layer.Image

Hi,

Try to set a new extent for the layer:

imgLayer.extent=new OpenLayers.Bounds(-70,-10,70,10);

This is perhaps needed to refresh the layer imgLayer.setVisibility(false);
imgLayer.setVisibility(true);
 
Arnd

-----Ursprüngliche Nachricht-----
Von: openlayers-users-bounces at lists.osgeo.org
[mailto:openlayers-users-bounces at lists.osgeo.org] Im Auftrag von jk
Gesendet: Mittwoch, 24. August 2011 21:27
An: users at openlayers.org
Betreff: [OpenLayers-Users] how to change the size of OpenLayers.Layer.Image

Hi,

I am trying to use OL to view military images, jpeg, of various dimensions.
I need to maintain the orginal aspect. Now, how to specify the size values
when creating a new Layer.Image?

Is it possible to change those values after image loads?

How?

Thanks.

JK

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