<div>Hi All,</div>
<div> </div>
<div>i found vtkLineSource has a *Resolution* to make points along the line with my desired sample step, it's very nice.</div>
<div> </div>
<div>Now i need calc 2d circle ROI info, so i want to extract points in the circle with desired sample step, and then use vtkProbeFilter to get samples' intensity</div>
<div> </div>
<div>but i *cannot* found point extract function in 2d nor setting resolution capability. </div>
<div> </div>
<div>Any solution for this?</div>
<div> </div>
<div>Thanks and Regards</div>
<div>J</div>