the question about panning function?

[eric1302]

hello!

can anybody help me,I am very urgent!

I can't work out a correct solution to a question about pan aciton.

Now I want to let the Picture support the pan aciton,same as the panning tool of the waveform Graph! 

who can realize it???

Thanks

Eric

[eric1302]

nobady know this??

[unclebump]

We need more info and a sample vi. What type of picture, what is the size of the image, what is the size of the picture indicator?? Could you use image subset to display a portion of the original and use mouse click distances to grab a new subset. Do you want to see the image slide as you pan or just update when you release??

Message Edited by unclebump on 11-14-2006 05:58 AM

[eric1302]

Not a image,

I use drawpoint.vi to draw many point on the Picture.And then I change the zoomfactor value of the Picture's propery node to zoom in the Picture.A part of point disappear,Now I drag the Picture and want to view the point by use the "Pan" action.Like the "Panning tool" aciton of the Waveform Graph. 

I am not certain whether you understand I said?

[unclebump]

It looks like the easiest option would be to turn on the scrollbars for the picture control. Right click on the picture, Select visible items, Scrollbar.

[unclebump]

You may not like the results. Search the forums for 'picture flashing' and see what you find. When using scrollbars, the image flashes.

[eric1302]

I know scrollbar,but it don't adopt to my needs.I think when I place the mouse within the range of picture,and then mouse down and move,the picture's coordinate move and change at once.I don't know if I can realize it?!