Problem with split command

[azarou]

hello guys, i have a problem is that when I use splite command to split curve 1 (c1) and curve 2 (c2) from the surface . it does not split I don’t know why, my intention is to split that area to create a stair
pavilion.3dm (5.4 MB)

[michaelkreft]

Hi azarou,

Your splitting curves do not meet the trimmed boundary edge of the surface, use the ExtendCrvOnSrf command so the lines meet that trimmed boundary edge. Then you can trim as normal.

[azarou]

thanks man