Line Split Line
Function Description: The Line Split Line function supports by intersecting one of the two lines, the other line is broken into two lines connected end to end.
Steps
1.Click Line Split Line 
button in the Vector Editor, move the mouse to click one of the intersecting line objects first, and then click the line object to be broken again, the line object will be broken into two line objects connected end to end.
If the two line objects do not intersect, line break will be invalid, and there will be a prompt in the output window.
- Original intersecting lines: Two intersecting line objects.
Original line
- Break at intersection point: The two lines after the break are connected end to end at the intersection point.
Line segment after break
- Two line segments do not intersect: line break is not allowed, and there will be a prompt in the output window.
Two line segments do not intersect
Error prompt