I made a model too tall, how do I chop the bottom part off?

Question

I made a ship model and mid-way into the making I said "Hey, that looks a lot like a rowboat". But I'm not sure how to delete the other half of the model that is too big.

Here's an image of the boat: (should be fairly obvious where I want to cut)

EDIT: I tried deleting all the vertices at the bottom, but that just created a large hole in the bottom.

Answer 1

This is probably not the most efficient way, but it's simple and clean.

1. I hit z to enter wireframe mode.
2. Then NumPad_1 to enter front view mode (depending on how your boat is orientated, it could be NumPad 3, side view)
3. Then b to box select the bottom faces (one row before the vertices you want to keeP)
4. Then x and Delete Vertices
5. Making sure I had the vertex select mode on, I clicked one vertex away from the corner, held CTRL and right clicked the point opposite it which was one vertex away from the opposite corner. (Holding control while right-clicking selects the shortest path between selections). I do the same for the other side of the boat.
6. Then Space and type in Bridge Edge Loops
7. I hit CTRL + r to enter loop cut mode and hover my cursor over the newly made row of planks and type in the number of loop cuts I want to be made. I made it 2 because I had 2 middle vertices I needed to be joined with something. Then once the pink lines are where you want, hit Enter twice.
8. Finally, use b to box select, c to circle select, or simply right-click the vertices left and hit f to join them into faces. Do this by sets of 4, not all at once.

Or, try selecting the hole's perimeter with Alt + Right Click then hitting Space and typing in Grid Fill. Sometimes that works, and sometimes it doesn't.

Answer 2

You could try deleting the bottom faces, then select the edges and press F, that'll create a Ngon, if you want only quads you can bridge edge loop between each edge in the bottom