On Mon, 14 Mar 2005 17:36:25 -0500, Paul Davis <paul@xxxxxxxxxxxxxxxxxxxxx> wrote: > >Say I have a 2D space that's potentially very large. I need to be > >able to display various player icons on this world (they rotate and > >move around in this space) and draw a grid on it. > > > >Players shouldn't really be limited to a certain area of movement, > >they should be able to move pretty darned far. So if I initialize a > >gnomecanvas that's 1000000x1000000, they could probably move off of > >that and I'd have to resize the viewable area. > > > >And if I initialize a huge world up front and draw grids all over it, > >the application takes a long time to start. > > > >So, what I really need to do is make the world big enough to contain > >all the players, even when the players move around (the world should > >expand as the players move away from the center). > > > >Ideas on how to properly implement something like this? Another > >problem I've run in to is that when the world / viewable area is very > >large, the scroll bars don't provide very good movement (think > >scrolling in a million page document or something). > > you haven't provided even close to enough information to really help you. > > is this an AA canvas? how are you drawing the grid? Yes, AA canvas. I have a variable that controls how wide (in pixels) each grid square should be. I start at the world's mininum x and increment to the world's maximum x, drawing a line from the world's mininum y to the maximum y (for vertical lines). And repeat for horizontal lines. _______________________________________________ gtk-list@xxxxxxxxx http://mail.gnome.org/mailman/listinfo/gtk-list
