Re: [racket-users] How to fill a shape with a texture using 2htdp/image or similar?

[Jens Axel Søgaard]

Maybe there are other useful pict/brush modifiers of interest?

https://github.com/soegaard/metapict/blob/master/metapict/pict.rkt#L149

/Jens Axel


2015-05-21 18:41 GMT+02:00 Robby Findler :

> Oh, nice! We should add brushstipple to pict itself.
>
> Robby
>
> On Thu, May 21, 2015 at 11:28 AM, Jens Axel Søgaard
>  wrote:
> > Here is an example from MetaPict:
> >
> >
> http://soegaard.github.io/docs/metapict/metapict.html#%28def._%28%28lib._metapict%2Fpict..rkt%29._brushstipple%29%29
> >
> > The same effect can be achieved by setting the brush to a stipple
> > and then filling a path.
> >
> > /Jens Axel
> >
> >
> > 2015-05-20 17:03 GMT+02:00 Robby Findler :
> >>
> >> 2htdp/image doesn't support that now, but the "color" argument of
> >> various functions there could be generalized to support a new "brush"
> >> struct (in the way that pen structs work for outline images) that had
> >> a bitmap field to do what you want. The internal helper function
> >> mode-color->brush would have to change to support that, which would be
> >> pretty straightforward I expect (it creates a brush% object). And then
> >> there's the work of updating the documentation and adding new examples
> >> and test cases.
> >>
> >> The relevant files are mrlib/image-core and various files in the 2htdp
> >> collection. Patches welcome. :)
> >>
> >> Robby
> >>
> >>
> >> On Tue, May 19, 2015 at 6:36 PM, Daniel Prager
> >>  wrote:
> >> > 2htdp/image makes it easy to draw all sorts of solid shapes
> (triangles,
> >> > squares, stars, etc.) and fill them with a solid color.
> >> >
> >> > But say I want to fill with a texture (say from a bitmap loaded from a
> >> > file). I could brute-force it by creating a separate stencil image,
> >> > converting both to pixels and converting back, but that seems
> laborious,
> >> > or
> >> > presumably switch to GL.
> >> >
> >> > Any other ideas?
> >> >
> >> > Thanks
> >> >
> >> > Dan
> >> >
> >> > --
> >> > You received this message because you are subscribed to the Google
> >> > Groups
> >> > "Racket Users" group.
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> >> > an
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> >>
> >> --
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> >
> >
> >
> >
> > --
> > --
> > Jens Axel Søgaard
> >
>
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-- 
Jens Axel Søgaard

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Re: [racket-users] How to fill a shape with a texture using 2htdp/image or similar?

[Daniel Prager]

Thanks Jens

That looks great. I'll give MetaPict whirl!

Dan

On Fri, May 22, 2015 at 2:28 AM, Jens Axel Søgaard 
wrote:

> Here is an example from MetaPict:
>
>
> http://soegaard.github.io/docs/metapict/metapict.html#%28def._%28%28lib._metapict%2Fpict..rkt%29._brushstipple%29%29
>
> The same effect can be achieved by setting the brush to a stipple
> and then filling a path.
>
> /Jens Axel
>
>
> 2015-05-20 17:03 GMT+02:00 Robby Findler :
>
>> 2htdp/image doesn't support that now, but the "color" argument of
>> various functions there could be generalized to support a new "brush"
>> struct (in the way that pen structs work for outline images) that had
>> a bitmap field to do what you want. The internal helper function
>> mode-color->brush would have to change to support that, which would be
>> pretty straightforward I expect (it creates a brush% object). And then
>> there's the work of updating the documentation and adding new examples
>> and test cases.
>>
>> The relevant files are mrlib/image-core and various files in the 2htdp
>> collection. Patches welcome. :)
>>
>> Robby
>>
>>
>> On Tue, May 19, 2015 at 6:36 PM, Daniel Prager
>>  wrote:
>> > 2htdp/image makes it easy to draw all sorts of solid shapes (triangles,
>> > squares, stars, etc.) and fill them with a solid color.
>> >
>> > But say I want to fill with a texture (say from a bitmap loaded from a
>> > file). I could brute-force it by creating a separate stencil image,
>> > converting both to pixels and converting back, but that seems
>> laborious, or
>> > presumably switch to GL.
>> >
>> > Any other ideas?
>> >
>> > Thanks
>> >
>> > Dan
>> >
>> > --
>> > You received this message because you are subscribed to the Google
>> Groups
>> > "Racket Users" group.
>> > To unsubscribe from this group and stop receiving emails from it, send
>> an
>> > email to racket-users+unsubscr...@googlegroups.com.
>> > For more options, visit https://groups.google.com/d/optout.
>>
>> --
>> You received this message because you are subscribed to the Google Groups
>> "Racket Users" group.
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>>
>
>
>
> --
> --
> Jens Axel Søgaard
>
>


-- 
*Daniel Prager*
Agile/Lean Coaching, Software Development and Leadership
Startup: www.youpatch.com
Twitter: @agilejitsu 
Blog: agile-jitsu.blogspot.com
Linkedin: au.linkedin.com/in/danielaprager

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Re: [racket-users] How to fill a shape with a texture using 2htdp/image or similar?

[Robby Findler]

Yes, indeed. All those functions right there feel like they belong in
the generic pict library, not in the meta-pict layer on top.

Robby

On Thu, May 21, 2015 at 11:53 AM, Jens Axel Søgaard
 wrote:
> Maybe there are other useful pict/brush modifiers of interest?
>
> https://github.com/soegaard/metapict/blob/master/metapict/pict.rkt#L149
>
> /Jens Axel
>
>
> 2015-05-21 18:41 GMT+02:00 Robby Findler :
>>
>> Oh, nice! We should add brushstipple to pict itself.
>>
>> Robby
>>
>> On Thu, May 21, 2015 at 11:28 AM, Jens Axel Søgaard
>>  wrote:
>> > Here is an example from MetaPict:
>> >
>> >
>> > http://soegaard.github.io/docs/metapict/metapict.html#%28def._%28%28lib._metapict%2Fpict..rkt%29._brushstipple%29%29
>> >
>> > The same effect can be achieved by setting the brush to a stipple
>> > and then filling a path.
>> >
>> > /Jens Axel
>> >
>> >
>> > 2015-05-20 17:03 GMT+02:00 Robby Findler :
>> >>
>> >> 2htdp/image doesn't support that now, but the "color" argument of
>> >> various functions there could be generalized to support a new "brush"
>> >> struct (in the way that pen structs work for outline images) that had
>> >> a bitmap field to do what you want. The internal helper function
>> >> mode-color->brush would have to change to support that, which would be
>> >> pretty straightforward I expect (it creates a brush% object). And then
>> >> there's the work of updating the documentation and adding new examples
>> >> and test cases.
>> >>
>> >> The relevant files are mrlib/image-core and various files in the 2htdp
>> >> collection. Patches welcome. :)
>> >>
>> >> Robby
>> >>
>> >>
>> >> On Tue, May 19, 2015 at 6:36 PM, Daniel Prager
>> >>  wrote:
>> >> > 2htdp/image makes it easy to draw all sorts of solid shapes
>> >> > (triangles,
>> >> > squares, stars, etc.) and fill them with a solid color.
>> >> >
>> >> > But say I want to fill with a texture (say from a bitmap loaded from
>> >> > a
>> >> > file). I could brute-force it by creating a separate stencil image,
>> >> > converting both to pixels and converting back, but that seems
>> >> > laborious,
>> >> > or
>> >> > presumably switch to GL.
>> >> >
>> >> > Any other ideas?
>> >> >
>> >> > Thanks
>> >> >
>> >> > Dan
>> >> >
>> >> > --
>> >> > You received this message because you are subscribed to the Google
>> >> > Groups
>> >> > "Racket Users" group.
>> >> > To unsubscribe from this group and stop receiving emails from it,
>> >> > send
>> >> > an
>> >> > email to racket-users+unsubscr...@googlegroups.com.
>> >> > For more options, visit https://groups.google.com/d/optout.
>> >>
>> >> --
>> >> You received this message because you are subscribed to the Google
>> >> Groups
>> >> "Racket Users" group.
>> >> To unsubscribe from this group and stop receiving emails from it, send
>> >> an
>> >> email to racket-users+unsubscr...@googlegroups.com.
>> >> For more options, visit https://groups.google.com/d/optout.
>> >
>> >
>> >
>> >
>> > --
>> > --
>> > Jens Axel Søgaard
>> >
>>
>> --
>> You received this message because you are subscribed to the Google Groups
>> "Racket Users" group.
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>
>
>
>
> --
> --
> Jens Axel Søgaard
>

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Re: [racket-users] How to fill a shape with a texture using 2htdp/image or similar?

[Robby Findler]

Oh, nice! We should add brushstipple to pict itself.

Robby

On Thu, May 21, 2015 at 11:28 AM, Jens Axel Søgaard
 wrote:
> Here is an example from MetaPict:
>
> http://soegaard.github.io/docs/metapict/metapict.html#%28def._%28%28lib._metapict%2Fpict..rkt%29._brushstipple%29%29
>
> The same effect can be achieved by setting the brush to a stipple
> and then filling a path.
>
> /Jens Axel
>
>
> 2015-05-20 17:03 GMT+02:00 Robby Findler :
>>
>> 2htdp/image doesn't support that now, but the "color" argument of
>> various functions there could be generalized to support a new "brush"
>> struct (in the way that pen structs work for outline images) that had
>> a bitmap field to do what you want. The internal helper function
>> mode-color->brush would have to change to support that, which would be
>> pretty straightforward I expect (it creates a brush% object). And then
>> there's the work of updating the documentation and adding new examples
>> and test cases.
>>
>> The relevant files are mrlib/image-core and various files in the 2htdp
>> collection. Patches welcome. :)
>>
>> Robby
>>
>>
>> On Tue, May 19, 2015 at 6:36 PM, Daniel Prager
>>  wrote:
>> > 2htdp/image makes it easy to draw all sorts of solid shapes (triangles,
>> > squares, stars, etc.) and fill them with a solid color.
>> >
>> > But say I want to fill with a texture (say from a bitmap loaded from a
>> > file). I could brute-force it by creating a separate stencil image,
>> > converting both to pixels and converting back, but that seems laborious,
>> > or
>> > presumably switch to GL.
>> >
>> > Any other ideas?
>> >
>> > Thanks
>> >
>> > Dan
>> >
>> > --
>> > You received this message because you are subscribed to the Google
>> > Groups
>> > "Racket Users" group.
>> > To unsubscribe from this group and stop receiving emails from it, send
>> > an
>> > email to racket-users+unsubscr...@googlegroups.com.
>> > For more options, visit https://groups.google.com/d/optout.
>>
>> --
>> You received this message because you are subscribed to the Google Groups
>> "Racket Users" group.
>> To unsubscribe from this group and stop receiving emails from it, send an
>> email to racket-users+unsubscr...@googlegroups.com.
>> For more options, visit https://groups.google.com/d/optout.
>
>
>
>
> --
> --
> Jens Axel Søgaard
>

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Re: [racket-users] How to fill a shape with a texture using 2htdp/image or similar?

[Robby Findler]

2htdp/image doesn't support that now, but the "color" argument of
various functions there could be generalized to support a new "brush"
struct (in the way that pen structs work for outline images) that had
a bitmap field to do what you want. The internal helper function
mode-color->brush would have to change to support that, which would be
pretty straightforward I expect (it creates a brush% object). And then
there's the work of updating the documentation and adding new examples
and test cases.

The relevant files are mrlib/image-core and various files in the 2htdp
collection. Patches welcome. :)

Robby


On Tue, May 19, 2015 at 6:36 PM, Daniel Prager
 wrote:
> 2htdp/image makes it easy to draw all sorts of solid shapes (triangles,
> squares, stars, etc.) and fill them with a solid color.
>
> But say I want to fill with a texture (say from a bitmap loaded from a
> file). I could brute-force it by creating a separate stencil image,
> converting both to pixels and converting back, but that seems laborious, or
> presumably switch to GL.
>
> Any other ideas?
>
> Thanks
>
> Dan
>
> --
> You received this message because you are subscribed to the Google Groups
> "Racket Users" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to racket-users+unsubscr...@googlegroups.com.
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[racket-users] How to fill a shape with a texture using 2htdp/image or similar?

[Daniel Prager]

2htdp/image makes it easy to draw all sorts of solid shapes (triangles,
squares, stars, etc.) and fill them with a solid color.

But say I want to fill with a texture (say from a bitmap loaded from a
file). I could brute-force it by creating a separate stencil image,
converting both to pixels and converting back, but that seems laborious, or
presumably switch to GL.

Any other ideas?

Thanks

Dan

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