how can lv6.1 use it's picture control to enlarge picture's length and width

[pyj]

how can lv6.1 use it's picture control to enlarge picture's length and width with it's primary long_width scale keep invariab,and it's defintion is also keep invariab! please notice me ,the picture is displayed by picture control, not is by copy and paste to the front panel!

[pawel]

Hi
I am not sure how about LV6.1, but 7.0 has the property node "zoom factor" for doing this.

hope it helps
Pawel

[Ben]

Hi pvi,

It's me again.

I have wanted to develop VI's to do this for a while but I have not had a chance.

I believe the George Zou of "Gtoolbox" fame has done this and this functionality is included in his toolbox.

I do not believe there are any LV functions available that will et you do this "out of the box" (pun intended).

I believe you will have to devlop this fuctionality yourself.

I would start by type casting a flattened pxmap as a 2-d array of U32's IF POSSIBLE. Like I said, I have not stuck my head in this hole YET.

What you will need to do to enlarge your image in the X axis is figure out how many columns of pixels you have to add and use the adjacent pre-existing pixels to dicate the color of the new pixels.

This is no easy task!


I thnk George is the only one that has figured this out!

Post with more Q's as they come up.

This topic is of interest to me.

Trying to help,

Ben

[Anonymous]

dear expert Ben:
thank you for your enuthusis help!
but i didn't know:who is George Zou?
are your spell right?
i have search the code library,can not find george zou!
i am sorry,in china ,no one can solve this ,i believe!

[Anonymous]

George responded to one of your earlier Q's.

http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101&RPAGEID=135&HOID=506500000008000000EABB0000&UCATEGORY_0=_49_%24_6_&UCATEGORY_S=0

Ben

[Anonymous]

you are right!
i try to access Geogre zou's "http://gtoolbox.yeah.net" ,but
failed,"web error",is it expired? or have deleted?
pyj

[Anonymous]

try

http://www.geocities.com/gzou999/index.html

Ben