Re: Need Fast 2D Graphics


hi,

About 10 years ago I wrote some code to do a simmilar grahical
representation of Rural Municipalities (similar to counties). They are
about 18mi sq. I put a transparent canvas with the changing data over
a static drawing to speed it up. You can have a lot of data on screen
and you would probably be ok as long as most of it is on the static
layer.

In 2005 I wrote a progam to map the province, about 500 by 800 miles
with about 40 items per square mile. For this project I used the EZGIS
component set by Alex Sanchez. The EZGIS was very fast, fairly easy to
use and support was ok. The price was high, but considering my final
product and the features that were available I feel it was good value.

I was going to add the link but I see it is currently broken. Lots of
links on google.

denis



<zzzxtreme@xxxxxxxxx> wrote:

embarrassingly, i sometimes use TChart to draw shapes and stuffs, but
it is difficult (for me) to code Tchart.

Beardi...@xxxxxxxxxxxxxx wrote:
Hello,

I am developing a 2D graphics application to simulate an airport that
draws lines, ellipses and arcs to represent planes, runways etc.

I would to have 25fps with minimal cpu usage but have found that the
standard TCanvas functions for drawing to be slow and require a better
solution.

I believe this to be because VCL uses GDI/GDI+ which seems to be slow
so I tried DelphiX but the DXDraw.Surface.Canvas functions seem just
as slow or am i using DelphiX incorrectly?

Chris


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