blender底部对齐

目录

效果图：

1.判断轴向：

2. 切平：

效果图：

1.判断轴向：

import bpy obj = bpy.context.active_object verts = obj.data.vertices x_vals = [v.co.x for v in verts] y_vals = [v.co.y for v in verts] z_vals = [v.co.z for v in verts] print(f"X轴范围: {min(x_vals):.2f} ~ {max(x_vals):.2f} 高度差: {max(x_vals)-min(x_vals):.2f}") print(f"Y轴范围: {min(y_vals):.2f} ~ {max(y_vals):.2f} 高度差: {max(y_vals)-min(y_vals):.2f}") print(f"Z轴范围: {min(z_vals):.2f} ~ {max(z_vals):.2f} 高度差: {max(z_vals)-min(z_vals):.2f}")

2. 切平：

E:\project\bpy_pro\qie_ping.py

import bpy def flatten_bottom_vertices(axis='Y', z_target=0, threshold=0.01): """ 将物体底部的顶点压平 参数: axis: 高度轴，可选 'X', 'Y', 'Z' z_target: 目标高度值 threshold: 容差 """ obj = bpy.context.active_object if obj is None or obj.type != 'MESH': print("请先选中一个网格物体") return bpy.ops.object.mode_set(mode='OBJECT') mesh = obj.data # 根据选择的轴获取坐标值 axis_idx = {'X': 0, 'Y': 1, 'Z': 2}[axis] # 找出该轴的最小值 coords = [v.co[axis_idx] for v in mesh.vertices] lowest = min(coords) print(f"沿 {axis} 轴，最低点: {lowest:.4f}") # 选择底部顶点（距离最低点小于阈值的顶点） selected_verts = [] for v in mesh.vertices: if abs(v.co[axis_idx] - lowest) < threshold: selected_verts.append(v) print(f"找到 {len(selected_verts)} 个底部顶点") if not selected_verts: print("未找到底部顶点，请尝试增大threshold") return # 直接修改坐标 for v in selected_verts: co = list(v.co) co[axis_idx] = z_target v.co = co mesh.update() print(f"已将 {len(selected_verts)} 个顶点压平到 {axis}={z_target}") # ===== 使用Y轴，压平到Y=0 ===== flatten_bottom_vertices(axis='Y', z_target=0, threshold=0.05)