Re: Scheme interface for the graphical mode

Hi Max,

thanks for the answer. I will continue the post with the code I wrote, 
which is simple and does what I want although it may make graphical 
lists redundant and difficult to read.

For the visibility: does tm-define-macro also define globally-visible 
macros? As I find that using define-graphics, which is defined in 
progs/graphics/graphics-markup.scm with tm-define-macro, gives Unbound 
variable: define-graphics.

Or maybe it is the whole of graphics-markup.scm which is never loaded by 
TeXmacs?

At any rate the answer is that one should not yet use the built-in 
Scheme functions for graphics manipulation (which look like a good 
system of functions to me), so for the post I will use the few functions 
I wrote and say that in TeXmacs a comprehensive set of functions has 
been sketched and partly implemented and documented but it is not yet ready.

G.

On 25.11.20 00:02, Massimiliano Gubinelli wrote:
> Dear Giovanni,
>   procedures declared with tm-define are visible globally, while procedures declared with define are only visible within the module. I think this answers your question.
>
> Of course in the future it is possible to imagine to enhance the module with additional procedures, useful for graphic programming, but for the moment I think would be better to experiment with code external to the main code-base.
>
>
> Max
>
>
>
>> On 24. Nov 2020, at 23:47, Giovanni Piredda <[email protected]> wrote:
>>
>> Dear all,
>>
>> I am writing a small blog post for modular graphics and I realized that two out of the three functions that I wrote for that already exist in TeXmacs (and maybe the third too ... but I do not know).
>>
>> To orient myself better: what is the status of the functions in progs/graphics/? Is one expected to be able to use them from Scheme?
>>
>> I tested a few in a Scheme session. Some work ((stree->tree '(rectangle (point 0 0) (point 1 1))) draws a square), some don't (example: Unbound variable: enhanced-tree-property-set!), some work differently from how I expect them to.
>>
>> Example for the last case: (enhanced-tree->radical '(with "color" "red" (gr-group (point 1 0) (point 1 1)))) outputs (with "color" "red" (gr-group (point 1 0) (point 1 1)))
>>
>> A short explanation of the status would help me to rewrite what I have already written (or to put it in the context of what already exists).
>>
>> As far as I can see, the whole documentation for these functions is in Help→Scheme extensions→Scheme interface for the graphical mode.
>>
>> Looking forward to some info.
>>
>> Giovanni
>>
>>
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