Redraw vs Undraw - What's the difference?

As verbs the difference between redraw and undraw

is that redraw is to draw again while undraw is to draw aside or open; to pull back a layer of fabric, e.g. a curtain.

is an update to the screen display.

To draw again.

The treaty proposed to redraw the border lines between the nations.

(en noun)

(computing, graphical user interface) An update to the screen display.

Redraws need to be synchronised with the screen refresh to avoid a flickery display.

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To draw aside or open; to pull back a layer of fabric, e.g. a curtain.

She undrew the curtain to reveal the shining rays of the sun.

To clear or erase part of a drawing.

* draw