Re: fast drawing in delphi

In article <43ab3c8c@xxxxxxxxxxxxx>, Maldona8 <maldona8@xxxxxxxxxxxx> wrote:
>Unfortunately, almost each hexagon in the neural map is changing, little,
>but changing...

If the point of having a map displayed is to give the viewer
information about the progress of the algorithm (or some such),
it probably doesn't matter if the graphics are not an =exact=
representation of the program state. So you could probably get
away with not redrawing those hexagons which have changed less
than some delta. For larger values of delta, that may introduce
some "stepping" artefacts. Who knows, though, that might even
improve the perceptual feedback!

Francis
.

Relevant Pages

  • Re: color gradient reverse engineering
    ... This algorithm is *very* coarse. ... A more correct algorithm would have to update 'delta' every time you ... decide another point is still on the same leg of your polyline. ... rather than from the bottom up: find corners of the input polyline by ...
    (comp.graphics.algorithms)
  • Re: Idle Thoughts
    ... can get as close to 4 as you want, closer ... No matter how small Delta gets, it can never actually reach 0. ... say that it is equal to 4 in reality. ...
    (borland.public.delphi.non-technical)
  • Re: New Question in Metric Spaces
    ... infinite set of such x_k's but it doesn't matter you say. ... we only need to show it for x_k in F. The uniformity comes from ... Recall that we have chosen such a delta, ... middle is < epsilon/3, since x_k is in F. For the other two terms, ...
    (sci.math)
  • Re: Forth PARANOIA
    ... including delta arbitrarily small. ... equating 0^0 to zero introduces a needless discontinuity. ... then it is an error and 'discontinuous' no matter what. ... rather than a 1 which could result from a valid computation. ...
    (comp.lang.forth)
  • Re: Idle Thoughts
    ... > No matter how far you go, Delta will always be slightly> 0. ... You don't believe in differential calculus then? ... Prev by Date: ...
    (borland.public.delphi.non-technical)