C# -x0）； int dy=数学绝对值（y1-y0）； int sx=x0

好消息！我已经设法解决了这个问题

InsertVertex（）

实际上不会将新顶点添加到顶点列表中！这意味着当它尝试三角化时，它试图指向新的顶点，但它不能（因为该顶点不在列表中）。因此，为了解决这个问题，我只需在调用

InsertVertex（）

之前手动将新顶点添加到网格中的顶点列表中。注意：执行此操作时，还需要手动设置顶点的id。我将id设置为顶点列表的大小，因为我正在将所有新顶点添加到列表的末尾

// When left click is pressed, a raycast is sent out. If that raycast hits the wall, updatePoints() is called and is passed in the location of the hit (hit.point).
public void updatePoints(Vector3 pos)
{
    // Convert pos to local coords of wall. You don't need to do this, i do it because of my draw() method where i map everything out onto a texture and display it.
    pos = transform.InverseTransformPoint(pos);
    pos.x = map(pos.x, -0.5f, 0.5f, 0, 512);
    pos.y = map(pos.y, -0.5f, 0.5f, 0, 512);
    Vertex newVert = new Vertex(pos.x, pos.y);

    // Manually add new vertex to list of vertices.
    newVert.id = mesh.vertices.Count;
    mesh.vertices.Add(newVert.id, newVert);

    //Doing just the first line gave me a null pointer exception. Adding the two extra lines below it fixed it for me.
    otri.tri = mesh.dummytri;
    otri.orient = 0;
    otri.Sym();

    // Insert new vertex into existing triangulation.
    mesh.InsertVertex(newVert, ref otri, ref osub, false, false);

    // Draw result as a texture onto the wall so to visualise what is happening.
    draw();
}

---

希望这将有助于某人完成道路

好消息！我已经设法解决了这个问题

InsertVertex（）

实际上不会将新顶点添加到顶点列表中！这意味着当它尝试三角化时，它试图指向新的顶点，但它不能（因为该顶点不在列表中）。因此，为了解决这个问题，我只需在调用

InsertVertex（）

之前手动将新顶点添加到网格中的顶点列表中。注意：执行此操作时，还需要手动设置顶点的id。我将id设置为顶点列表的大小，因为我正在将所有新顶点添加到列表的末尾

// When left click is pressed, a raycast is sent out. If that raycast hits the wall, updatePoints() is called and is passed in the location of the hit (hit.point).
public void updatePoints(Vector3 pos)
{
    // Convert pos to local coords of wall. You don't need to do this, i do it because of my draw() method where i map everything out onto a texture and display it.
    pos = transform.InverseTransformPoint(pos);
    pos.x = map(pos.x, -0.5f, 0.5f, 0, 512);
    pos.y = map(pos.y, -0.5f, 0.5f, 0, 512);
    Vertex newVert = new Vertex(pos.x, pos.y);

    // Manually add new vertex to list of vertices.
    newVert.id = mesh.vertices.Count;
    mesh.vertices.Add(newVert.id, newVert);

    //Doing just the first line gave me a null pointer exception. Adding the two extra lines below it fixed it for me.
    otri.tri = mesh.dummytri;
    otri.orient = 0;
    otri.Sym();

    // Insert new vertex into existing triangulation.
    mesh.InsertVertex(newVert, ref otri, ref osub, false, false);

    // Draw result as a texture onto the wall so to visualise what is happening.
    draw();
}

希望这将有助于某人完成道路

我们不把“已解决”放在问题中。你已经接受了一个帖子作为答案，仅此而已。我们不会在问题中添加“已解决”。你已经接受了一个帖子作为答案，就这样。