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I want to modify a powerpoint figure (a chromatogram) imported from another application. The figure is made of hundreds/thousands of points. I want to delete some sections of the figure.

I can delete points one by one with right-click -> delete point but when the line section to delete is large and has many points it takes hours.

Is there some way to delete groups of (consecutive) vertexes in one only action ?

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None that I know of; faced with the problem, I'd copy/paste the shape into CorelDraw or Illustrator or some other capable vector editing program and modify it there. Draw even has a feature that automatically simplifies complex curves for you (by deleting unnecessary points). It's not infallible but it generally works VERY well. – Steve Rindsberg Aug 5 '13 at 19:00
    
@SteveRindsberg Thanks Steve. I will try that – joaquin Aug 6 '13 at 19:45

This won't delete multiple points at once but, if you hold the CTRL key down while hovering over a point, you will see a small "x". Left Click to delete the point then continue to move to the next point and the next "x" to delete.

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thanks, actually this is what I do to delete point by point. the question was how to delete several at the same time. – joaquin Mar 10 '14 at 22:35

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