On Oct 10, 2010, at 7:28 AM, 김태윤 wrote:
> extract polygon information from an image is it silly thinking?
No.
> hello
> I was told that when it comes to compare with polygon and image rotating,
> polygon is much faster.
> and an obviously simple idea come across my mind.
> then why don't I cha
On Sun, Oct 10, 2010 at 5:40 PM, Eric Dobson wrote:
> I am dealing with a foreign library that has functions that return
> error messages in a char** input argument. These need to be explicitly
> freed by calling another function. I figured out how to get them into
> racket strings by using the _p
I am dealing with a foreign library that has functions that return
error messages in a char** input argument. These need to be explicitly
freed by calling another function. I figured out how to get them into
racket strings by using the _ptr and the _string ctype. But I didn't
see a way to capture t
On 2010-10-10 21:53:40 +0900, 김태윤 wrote:
>I still wonder how kind of google earth rotate image very fast
>anyway, thank you for your advice~!
This won't directly help in your Racket code, but if you're
interested in the technical details of how Google Earth works and
why it's so efficient,
Thanks for sending the whole program. I would say that the original
problem from the beginning of this thread is probably best considered
a bug in 'bitmap'.
Noel's code is how I would work around it, but I would do this instead:
(define-runtime-path img-fn "programming/dct/cauliflower.jpg")
(d
extract polygon information from an image is it silly thinking?
hello
I was told that when it comes to compare with polygon and image rotating,
polygon is much faster.
and an obviously simple idea come across my mind.
then why don't I change image into much simpler colored polygon?
feel like it is
김태윤 wrote at 10/10/2010 08:53 AM:
I still wonder how kind of google earth rotate image very fast
Search the Racket documentation and the Web for "opengl".
--
http://www.neilvandyke.org/
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hello
thank you for your replying
does your code works in your environment properly?
it works properly when I run without compiling
but when I try to compile, sort of error occur.
so I change my style to
(define hero (bitmap "location of image"))
but it doesn't works either in other computer unless
I still wonder how kind of google earth rotate image very fast
anyway, thank you for your advice~!
2010/10/10 Stephen Bloch
> On Oct 10, 2010, at 4:17 AM, 김태윤 wrote:
>
> > there is little images(16x16) that cropped from other chipset
> > and I gether them and make an image which size is about
How is Bill gates
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On Oct 10, 2010, at 4:17 AM, 김태윤 wrote:
> there is little images(16x16) that cropped from other chipset
> and I gether them and make an image which size is about 320 x 320
>
> and I rotate it, but it is very very slow and blink alot
This is because it really does take a lot of processing to rot
It sounds like what you really want is an .exe file that contains the image
directly, so you don't have to worry about what directory the .exe file or the
.bmp file are in. Fortunately, DrRacket recognizes images as literals: you can
just copy and paste an image into the source code. So if I w
hello thank you for your replying and effort
I am sorry to say like this
unfortunately the following code working same as
(bitmap "run.bmp")
it means
1. sourcefile is in c:\
2. run.bmp is in c:\
3. make exe
4. it works!
5. but.. when I change both run.bmp and exe to other folder, it doesn't work
6
Here is a working solution, where I have replaced the hero with a
picture I had on my hard disk:
#lang racket
(require 2htdp/universe)
(require 2htdp/image)
(require racket/gui/base)
(require racket/runtime-path)
(define-runtime-path here ".")
(define cauliflower
(make-object image-snip%
hello
there is little images(16x16) that cropped from other chipset
and I gether them and make an image which size is about 320 x 320
and I rotate it, but it is very very slow and blink alot
so I test basic polygon
it works perfectly, no delay, no blinking, even if when it grows big
the following
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