Beefy Boxes and Bandwidth Generously Provided by pair Networks
Welcome to the Monastery
 
PerlMonks  

Re^2: circular area in a coordinates grid (AoA)

by BrowserUk (Pope)
on Mar 22, 2019 at 21:26 UTC ( #1231576=note: print w/replies, xml ) Need Help??


in reply to Re: circular area in a coordinates grid (AoA)
in thread circular area in a coordinates grid (AoA)

As requested offline, an example drawing 150,000 random size circles at random positions in just over 1 second (in simple Perl):

#! perl -slw use strict; use GD; use Time::HiRes qw[ time ]; sub rgb2n{ unpack 'N', pack 'CCCC', 0, @_ } my $im = GD::Image->new( 1920, 1080, 1 ); my $start = time; for( 1 .. 150000 ) { $im->filledEllipse( rand( 1920 ), rand( 1080 ), (10+rand(2)) x 2, +rgb2n( (255) x 3 )); } printf "Took %.9f seconds\n", time() - $start; open PNG, '>:raw', 'junk.png' or die $!; printf PNG "%s", $im->png; close PNG; system 1, 'junk.png'; __END__ C:\test>junk71 Took 1.036067009 seconds

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority". The enemy of (IT) success is complexity.
In the absence of evidence, opinion is indistinguishable from prejudice. Suck that fhit

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://1231576]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others making s'mores by the fire in the courtyard of the Monastery: (5)
As of 2020-08-03 13:31 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    Which rocket would you take to Mars?










    Results (27 votes). Check out past polls.

    Notices?