Re: [Plplot-devel] Plplot embedded in pyqt + plimage function

[<jca...@in...>]

On Thursday 01 November 2001 22:06, Alessandro Mirone wrote:
| Hello Alan,
=2E..
| If you agree I would like to submit to  your kind evaluation, in
| the next weeks, small bunches of code ( as you suggested)  in order
| to implement step by step a plimage that fits our needs and
| hopefully those of the plplot community.

I don't know if there has been some further particular conversations=20
with Alan about plimage. I have applied your original patch and,=20
after some modifications, got plimage to work (I created a x20c.c=20
demo). But I need some clarifications and further work from you,=20
before I commit the changes to cvs.

1-We need a description of usage, including the arguments=20
descriptions. See for example  =20
http://plplot.sourceforge.net/resources/docbook-manual/plplotdoc-html-0.4=
=2E2/plshade1.html
(but plain text is OK).

2-Your patch includes a plmoveimage() and associated functions and=20
PLESC driver functions. These are only used in qplplot.py. Are these=20
functions really necessary? For one thing, one is introducing a=20
function in plcore.c that is only meaningfull for plimage and a=20
particular driver, and for the other side there are lots of PLESCs=20
(if necessary, those could be colapsed just in one=20
PLESC_PLIMAGEOPS(arg)). Also, the "move" operation is not very usual=20
in plots. What is its purpose?

3-In plimage() you use a row vector as argument for the image, but=20
plplot generally uses a 2D matrix for similar calls. Is there any=20
reason for this?

I am willing to commit my changes to cvs, without plmoveimage(), and=20
we could latter solve some other issues. What do you thing? Please=20
anwser to the list.

Thanks,
Joao

| Best regards
|
|      Alessandro Mirone
|
|
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