11-10-2010 04:58 AM
Salve a tutti, ho un problema da risolvere. Ho 4 display da 320 colonne per 240 righe e tutti e 4 i display servono a formarne uno più grande. Ogni display è controllato da un driver che tramite interfaccia USB ottiene le immagini da visulaizzare tramite software di appartenenza. Supponiamo ora di voler visualizzare una foto, immagine di 640x480; significa che l'immagine dovrebbe essere divisa i 4 parti ognuna delle quali deve poi essere inviata a uno dei 4 display tale da visualizzarla completamente. é possibile realizzare tramite labview un programma che mi splitti in 4 l'immagine originale e che riconosca in automatico il display a cui ognuna di queste sotto-immagini debba essere inviata? Naturalmente le 4 sotto immagini devono arrivare sui 4 display contemporaneamente.
Ringrazio in anticipo chi mi risponderà
saluti
m
11-10-2010 05:57 AM
English please...
11-10-2010 06:03 AM
Hi, I have a problem. I have 4 display of 320 columns by 240 rows used to form a larger one. Each display is controlled by the driver via a USB interface to display the images obtained by software belonging. Now suppose you want to view an image of 640x480, it means that the image should be divided into the 4 parts, each of which must then be sent to one of the 4 display that view completely. Is possible via a labview program that I split it in 4 the original image and that the program automatically recognizes the display to which each of these sub-images to be sent? Of course the 4 parts of the total should reach about 4 displays at once.
thanks
m
11-10-2010 06:24 AM
I guess It is possible. You need to write code to split image data into 4.You can always define which part to be sent to which display.
like Subset 1= display 1...like that.
11-10-2010 06:28 AM
infatti! ma è già presente nel forum un codice simile? Inoltre il software come potrebbe capire a quale porta usb indirizzare le varie parti dell'immagine?
11-10-2010 06:28 AM
Indeed! but it is already present in the forum a similar code? Moreover, the software could understand as to which port usb address the various parts of the image?
11-10-2010 06:33 AM
I don't know about example...Also software can not decide on its own. You need to code as to assign one port to one display.
Can you show us your attempt so far?
11-10-2010 06:40 AM
I have not made any attempt, because I do not have clear ideas. I would at least know if you can simultaneously send the 4 parts of a 4-port usb. while I believe that the division of the image into 4 parts can be achieved by identifying the coordinates of pixels. true?
11-10-2010 06:45 AM
True. And you can send data simultaneously.
11-10-2010 06:50 AM
but I do I need a driver to open the USB ports? data must be sent through the codes required by the controller?