Re: Large 2D Graph Additionally
From: Chris (Chris_at_nospam.com)
Date: 04/28/04
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Date: Wed, 28 Apr 2004 17:16:27 +0100
Additionally, each edge can be plotted as a path, consisting of, on average
8 points per edge.
Using a straight line for each edge is acceptable for my usage, selecting a
single mid point from the path would be better, up to optimum of plotting
all points on the path fro each edge.
Obviously I require usual operations of zoom etc.
Also I am familiar with the idea of sorting the nodes/edges into rectangualr
areas, and by level, then drawing only level 1, 2 say, on a full view of
the graph, showing the lower and more numerous lower level node/edges only
for appropriate rectangles when zoomed in.
I am more interested in whether the graphics coding can be made much simpler
because directX can handle a graph of this size. --- ie I can feed the data
in, and just select which layers I wish to display according to the zoom.
"Chris" <Chris@nospam.com> wrote in message
news:OQ3k3hTLEHA.624@TK2MSFTNGP11.phx.gbl...
> I will be, in next month or so, drawing a graph (map) with around 2
million
> nodes, 3 million edges, using probably 4 layers. Using c# and managed
> directx is it feasible to consider? The graph will be static as such,
but
> I would use another layer to hilite routes say.
>
> Thanks for any replies.
>
> Chris
>
>
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