Erase the original line of the ruler from the vector


Vector layer
Shape → Bezier curve

When erasing the original line art when drawing a line

Layer-> Ruler Frame-> Vector to Ruler
Since it is a vector layer, you can erase all the connected lines by erasing a part with a vector eraser.

Only the Bezier curve ruler remains
If you do not select a ruler from the vector, everything will disappear

If you draw with in and out, it will trace as it is



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