MapWindow 4 - ActiveX Control Programming : MapWindow Discussion Forum
Hello everybody, in my application wich uses the ActiveX-Control with MS-Access/vba. I have to load about 50 Geo-Tiffs (each about 70 MB) which is painfully slow. I use the folowing code: objImage.Open(strIPath & strIName, USE_FILE_EXTENSION, True) I
Again: Geotiffs extremly slow
Posted by:
dimpflmoser ()
Date: January 13, 2011 07:48AM
Hello everybody,
in my application wich uses the ActiveX-Control with MS-Access/vba. I have to load about 50 Geo-Tiffs (each about 70 MB) which is painfully slow. I use the folowing code:
objImage.Open(strIPath & strIName, USE_FILE_EXTENSION, True)
Is there any possibility to speed this up? Or is it possible to load the pictures only of a given window, when zoomed to it - and if so is there an example code?
Thanks Helmut
in my application wich uses the ActiveX-Control with MS-Access/vba. I have to load about 50 Geo-Tiffs (each about 70 MB) which is painfully slow. I use the folowing code:
objImage.Open(strIPath & strIName, USE_FILE_EXTENSION, True)
Is there any possibility to speed this up? Or is it possible to load the pictures only of a given window, when zoomed to it - and if so is there an example code?
Thanks Helmut
Re: Again: Geotiffs extremly slow
Posted by:
dimpflmoser ()
Date: January 14, 2011 02:02AM
Hello again,
I overcame this problem by writing a small routine with which I calculate the coordinates of a click and load the apropriate image - which is quite easy for the image-names contain their coordinates.
The problem I now have is that the pictures are displayed on top of the drawing but they should lie behind. How can I change this?
Thanks again
Helmut
I overcame this problem by writing a small routine with which I calculate the coordinates of a click and load the apropriate image - which is quite easy for the image-names contain their coordinates.
The problem I now have is that the pictures are displayed on top of the drawing but they should lie behind. How can I change this?
Thanks again
Helmut
Re: Again: Geotiffs extremly slow
Posted by:
Sergei ()
Date: January 15, 2011 10:51AM
Do you mean drawing layer or shapefile? Have you tried to move the image with Map.MoveLayerDown?
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