[Gvsig_english] Importing a raster image with gvSIG Mobile

[Juan Lucas Dominguez Rubio]

Hello,
that method computes the extent of the view when you add the first layer. The app knows the size of the screen and the extent of the layer, and their ratios are different, so you have to do a simple computation to find out the extent of the new view.
 
Maybe you have misunderstood the extent of a layer and the extent of the view?
 
When you add the first layer, the extent of the view is the smallest rectangle which contains the extent of the layer and, at the same time, respects the width/height ratio of the screen, of course.
 
Regards,
Juan Lucas Domínguez Rubio
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________________________________

De: gvsig_internacional-bounces at listserv.gva.es en nombre de Marcel Schoolmeesters
Enviado el: mar 29/03/2011 21:20
Para: Users and Developers mailing list
Asunto: Re: [Gvsig_english] Importing a raster image with gvSIG Mobile


well, I think the main problem of understanding is in function MapContext.getExtentFromFullExtentAndImageSize() ... I think the new height etc are calculated there? 

Am 29.03.2011 21:00, schrieb Marcel Schoolmeesters: 

	Hello, 
	
	I have tried to load a raster image (had to try jpg, because *.png did not even load), but I am getting a wrong position of the extent. Anybody got the same error? 
	
	I have tried the debug mode, but there are too many functions to catch on. Perhaps anybody can help? 
	
	Somewhere the map origin is changed from the upper edge to the lower edge, that far I could follow, but then the image extent (height) and the origin coords (of Y) has been changed. Why? it seems to be very hard to understand the whole way of building the image at the right place. 
	
	However, in attachment the original rectangle and the changed one are shown with their values while debugging... 
	
	The lower edge of the final image is positioned between those Y values (@ 53.464) but it needs to be positioned at 53.475.... 
	
	what is getRasterTansformation() actually doing? 
	
	
	Thanks in advance, if anybody can help. However, that issue should be fixed, I think. The import of PNG is not even possible, as I mentioned before.. 
	
	Regards 
	
	Marcel 
	
	
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