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 <pired...@posteo.de> 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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