[scilab-Users] wired problem of the edit tab
Mathieu Dubois
mathieu.dubois at limsi.fr
Tue Sep 28 09:47:54 CEST 2010
On 09/28/2010 12:27 AM, Peng Du wrote:
> Hi Mathieu
>
> Great to know that. I do have some experience with OOP languages but
> wasn't aware of these features of scilab.
Strictly speaking this is not OOP (just overloading). I think that true
OOP is a project for scilab 6... There is however some tricks (take a
look at http://wiki.scilab.org/Emulate_Object_Oriented_in_Scilab)...
>
> Thanks very much for your help.
>
> Best,
>
> Peng
>
> On 27 September 2010 21:22, Mathieu Dubois <mathieu.dubois at limsi.fr
> <mailto:mathieu.dubois at limsi.fr>> wrote:
>
> Hello,
>
> Le 27/09/2010 17:42, Peng Du a écrit :
>
> Many thanks Mathieu, you are so right - it works after I
> delete some
> variable assignments. But why did they cause the problem?
>
> I guess you have unconsciously redefined a scilab variable...
>
> For instance if you define a variable called length the you can no
> longer use the length function. For instance:
> x=-10:0.1:10;
> length=0;
> length(x); // Error length is now a vector
>
> If you execute the code above scilab will print a warning on line
> 2. You can turn this into an error: see help funcprot. This kind
> of error is common in dynamic languages (I remember I had the same
> issue in Python).
>
> In your case the problem seems to be related with function or
> operators overloading (see help overloading). This one of the most
> powerful functionality of scilab so you may take time to read
> about it (it took me several times to understand). If you are
> familiar with language that allow this (which most object-oriented
> languages C++, Python, etc. Java excepted) this should sound
> familiar. You may have a look at the tutorial by Eike Rietsch at
> http://www.scilab.org/support/documentation/community (see section 6).
>
> I guess you have defined a variable or a function called "handle"
> (or whose name contains "_h") so when scilab was trying to insert
> something your handle "p" it called your function and an error
> happened...
>
> By the way the error message you first posted was also about
> operators (it complains about function %h_e which is used to
> extract information form a handle). So maybe your first problem
> also vanished...
>
> HTH,
> Mathieu
>
> On 27 September 2010 16:21, Mathieu Dubois
> <mathieu.dubois at limsi.fr <mailto:mathieu.dubois at limsi.fr>
> <mailto:mathieu.dubois at limsi.fr
> <mailto:mathieu.dubois at limsi.fr>>> wrote:
>
> On 09/27/2010 04:51 PM, Peng Du wrote:
>
> Hi. I tried set the figure properties via commands. But
> similar
> error messages are reported:
>
> I added
>
> p=gcf();
> p.figure_name="foo";
>
> Which are excerpt from the example of online documents.
> And the
> console says:
>
> error 21
> invalid index
> at line 4 of function generic_i_h called by:
> line 2 of function %c_i_h called by:
> p.figure_name="foo";
>
> Very stange... Looks like an overloading issue... Did you
> clear all
> your variables?
>
>
> Best regards,
>
> Peng
>
> On 27 September 2010 15:15, Peng Du <eddy.pdu at gmail.com
> <mailto:eddy.pdu at gmail.com>
> <mailto:eddy.pdu at gmail.com <mailto:eddy.pdu at gmail.com>>>
> wrote:
>
> Oh dear... scilab suddenly fixed itself, after I did
> absolutely nothing..
>
> It is nice to have it working, however my fear is
> it will come
> back anytime without a notice..
>
> Thanks very much Mathieu, I will update this thread if
> anything happens again.
>
> Regards,
>
> Peng
>
>
> On 27 September 2010 14:44, Mathieu Dubois
> <mathieu.dubois at limsi.fr <mailto:mathieu.dubois at limsi.fr>
> <mailto:mathieu.dubois at limsi.fr
> <mailto:mathieu.dubois at limsi.fr>>> wrote:
>
> On 09/27/2010 03:20 PM, Peng Du wrote:
>
> Hi Mathieu,
>
> I can see the menu after clicking "Edit",
> however,
> nothing shows up except for those error
> messages when
> selecting either "figure properties" or "Axes
> properties". I also tried using "entity
> picker", but
> still, it reports errors when I pick
> anything on the graph.
>
> Sad... which version are you using? You can try the
> classical tip: update your drivers. If the problem
> persists you should fill a bug report...
>
> On the bright side if you need to change graphical
> properties (changing colours, line style, and
> so on), you
> can do everything with commands. If you are not
> familiar
> with the graphical API you might look at "help
> graphical_entities". It is a bit hard but it
> allows to do
> very nice plots. There are lots of help
> messages in the
> archive, too.
>
> If you have a specific request, don't hesitate...
>
> Good luck.
>
>
> Thanks.
>
> Peng
>
> On 27 September 2010 14:10, Mathieu Dubois
> <mathieu.dubois at limsi.fr <mailto:mathieu.dubois at limsi.fr>
> <mailto:mathieu.dubois at limsi.fr
> <mailto:mathieu.dubois at limsi.fr>>> wrote:
>
> Hello,
>
>
> On 09/25/2010 01:54 AM, Peng Du wrote:
>
> Hi.
>
> When I click the "edit" tab of the
> graphic
> window, no new window shows up.
> Instead the
> console reports:
>
> "Edit" normally shows a menu... Do you
> see the menu
> or not?
>
>
> !--error 21
> invalid index
> at line 3 of function %h_e called by:
> line 6 of function getparfig called by:
> line 21 of function
> TK_send_handles_list called by:
> line 40 of function ged called by:
> ged(4,0)
> while executing a callback
>
> Does anyone know why this is
> happening and how to
> fix it? Thanks a lot.
>
> I remember I had a problem under some
> old version of
> scilab (like 5.1.1) when cliking on "Figure
> properties"... The workaround was to
> click on "Axes
> properties".
>
> By the way under scilab 5.3 beta 3
> clicking on
> "Edit->Figure properties" seems to hang
> scilab... I
> have attached the bug report...
>
> Mathieu
>
>
>
>
>
>
>
>
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