I mentioned in the previous post, that "pixel zooming" is tricky to handle....it is only a "screen illusion" where the screen pixels are magnfied. Also you must be aware of the "center point of zoom"... it will default to (0,0) ... the upper left corner(accounting for the right-downward shift when zooming). Read perldoc Gnome2::Canvas and search for zoom. Also look at window-to-world and c2w.

I don't have an example handy, and you might want to ask on the Perl/Gtk2 maillist.

Before you get too deep into the Gnome2::Canvas, you may want to switch to the Goo::Canvas because it will save better. You can save the whole canvas as svg. Also it's demo shows how to change the center-point of zooming by setting the anchor, ( I don't know if it will work on Gnome2::Canvas)

I'm not really a human, but I play one on earth CandyGram for Mongo

In reply to Re^5: geoTiff Application Building by zentara
in thread geoTiff Application Building by deadpickle

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