[scilab-Users] Quiver on an image (SIVP toolbox)

[Stephane Mottelet]

Peter von Niederhaeusern <pvonnied at gmail.com> a écrit :

> Yes. I've found out the cause for this: the scale factor ;-)
> Now the quiver plot looks exactly as in the Matlab example.
>
> Remaining problem: plot the quiver on the image...

use "hold on"

>
> On Tue, Jul 13, 2010 at 2:30 PM, Stephane Mottelet
> <stephane.mottelet at utc.fr> wrote:
>> Peter von Niederhaeusern <pvonnied at gmail.com> a écrit :
>>
>>> Hi all,
>>>
>>> We are to convert scripts from Matlab to Scilab 5.2.2.
>>>
>>> One task of this conversion is to plot a quiver (we use plotlib)
>>> on an image of a moving car (difference image, displacement, object
>>> tracking...).
>>>
>>> The SIVP toolkit uses a Tk widget to display an image and quiver uses
>>> internal means of Scilab: is it possible to combine the two?
>>>
>>> BTW: are there any significant differences between the quiver command of
>>> Matlab
>>> and the _quiver command of plotlib? Our results differ heavily...
>>
>> Hi. the graphical results should only differ concerning arrow
>> size, not direction. Is it the case ?
>>
>> S.
>>
>>>
>>> Merci,
>>> Peter
>>>
>>
>>
>>
>