Ao how to edit the <(polylines) z> elevation values derived from dem

[wangyuanzhi]

hey all:

I  met a problem, i have some polylines which contain z and one .img file with  elevation values ,now ,i want to batch set the node's elevation of polyline  from .img file.
please help.

thanks
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[wangyuanzhi]

hello all:

the desktop toolbox have  mature  tool --InterpolateShape, it's ok to do this.

thanks.