I get the following error:
module: cannot use identifier tainted by macro transformation in: module
when i try to debug a multi-file program with both untyped and typed scripts in
it. If it's just untyped scripts it will work fine.
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h%`, and then using `draw-path`. That
> strategy only works for parts to be drawn with the same pen, though.
>
> Another common strategy is to render the drawing into a bitmap and copy
> the bitmap the screen for panning but that may not be so easy to
> implement with zooming.
>
&g
My program shows slow rendering when i am dealing with hundreds of lines/arcs
to draw. Panning even when the canvas is zoomed in a particular point seems to
be laggy. Using (time ..) to snoop around, it looks like draw-objects in
"canvas.rkt" is to blame. Is there a way i can fix this?
https://
On Thursday, July 23, 2015 at 2:50:37 PM UTC+8, copycat wrote:
> With a list box, i can select multiple items by holding onto my mouse and
> dragging. I'll like to add on other features to the list box like being able
> to drag the rows to reorder them, or to change the list-box v
With a list box, i can select multiple items by holding onto my mouse and
dragging. I'll like to add on other features to the list box like being able to
drag the rows to reorder them, or to change the list-box values directly by
clicking and editing. How can i do this? I'm not sure where in the
Yes, i can and will try with the old imagemagick bindings.
On Thursday, July 23, 2015 at 6:28:00 AM UTC+8, johnbclements wrote:
> > On Jul 20, 2015, at 4:11 AM, copycat wrote:
> >
> > Hi, not sure if this is considered a bug?
> >
> > (send model save-file "m
Hi, not sure if this is considered a bug?
(send model save-file "model1.bmp" 'bmp)
save-file in bitmap%: kind saving not yet implemented: 'bmp
I found this link, and it's been 2 years since. Is it an update that will take
a long time?
http://stackoverflow.com/questions/14987784/how-can-i-save-
What i meant to say was implementing a -interactive- canvas showing a giant
high resolution image.
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Hello all,
feedback is most appreciated. I had a lot of fun writing this small program
(see bottom for details and repository link), and i want to improve my skills
so i can write idiomatic Scheme/Racket code one day. Particularly helpful would
be suggestions as to where i can use macros to r
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