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176 lines
6.9 KiB
176 lines
6.9 KiB
from math import radians |
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import sys, platform, os, time, bpy, requests, json, bmesh, shutil |
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from PIL import Image |
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import platform |
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if platform.system() == 'Windows': |
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sys.path.append('e:\\libs\\') |
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else: |
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sys.path.append('/data/deploy/make3d/make2/libs/') |
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import config, libs |
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def bmesh_copy_from_object(obj, transform=True, triangulate=True, apply_modifiers=False): |
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"""Returns a transformed, triangulated copy of the mesh""" |
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assert obj.type == 'MESH' |
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if apply_modifiers and obj.modifiers: |
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import bpy |
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depsgraph = bpy.context.evaluated_depsgraph_get() |
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obj_eval = obj.evaluated_get(depsgraph) |
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me = obj_eval.to_mesh() |
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bm = bmesh.new() |
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bm.from_mesh(me) |
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obj_eval.to_mesh_clear() |
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else: |
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me = obj.data |
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if obj.mode == 'EDIT': |
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bm_orig = bmesh.from_edit_mesh(me) |
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bm = bm_orig.copy() |
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else: |
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bm = bmesh.new() |
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bm.from_mesh(me) |
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if transform: |
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matrix = obj.matrix_world.copy() |
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if not matrix.is_identity: |
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bm.transform(matrix) |
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matrix.translation.zero() |
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if not matrix.is_identity: |
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bm.normal_update() |
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if triangulate: |
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bmesh.ops.triangulate(bm, faces=bm.faces) |
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return bm |
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def fix_link_texture(pid): |
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# 修改obj中的mtl文件为pid_original.mtl |
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path = os.path.join(workdir, 'print', f'{pid}_{orderId}') |
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filename = os.path.join(path, f'{pid}_original.obj') |
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with open(filename, 'r') as f: |
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lines = f.readlines() |
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for i in range(len(lines)): |
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if lines[i].startswith('mtllib'): |
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lines[i] = f'mtllib {pid}_original.mtl\n' |
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break |
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with open(filename, 'w') as f: |
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f.writelines(lines) |
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f.close() |
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# 将pid.mtl文件复制为pid_original.mtl _decimate |
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shutil.copy(os.path.join(path, f'{pid}.mtl'), os.path.join(path, f'{pid}_original.mtl')) |
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shutil.copy(os.path.join(path, f'{pid}Tex1.jpg'), os.path.join(path, f'{pid}Tex1_decimate.jpg')) |
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texture_file = os.path.join(path, f'{pid}Tex1_decimate.jpg') |
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if os.path.exists(texture_file): |
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img = Image.open(texture_file) |
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img = img.resize((int(img.size[0] * 0.5), int(img.size[1] * 0.5))) |
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img.save(texture_file, quality=90, optimize=True) |
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print('resize texture file to 50% success') |
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# 修改pid_original.mtl文件中的贴图为pid_old.jpg |
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with open(os.path.join(path, f'{pid}_original.mtl'), 'r') as f: |
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lines = f.readlines() |
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for i in range(len(lines)): |
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if lines[i].startswith('map_Kd'): |
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lines[i] = f'map_Kd {pid}Tex1_decimate.jpg\n' |
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break |
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with open(os.path.join(path, f'{pid}_original.mtl'), 'w') as f: |
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f.writelines(lines) |
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f.close() |
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def main(): |
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start = time.time() |
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get_printsize_url = 'https://mp.api.suwa3d.com/api/printOrder/info' |
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upload_obj_volume_url = 'https://mp.api.suwa3d.com/api/physical/add' # ?pid=1&order_id=1&faces=1&volume=1 |
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res = requests.get(f'{get_printsize_url}?id={orderId}') |
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print('获取打印尺寸:', res.text) |
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if res.status_code == 200: |
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pid = res.json()['data']['pid'] |
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path = os.path.join(workdir, 'print', f'{pid}_{orderId}') |
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filename = os.path.join(path, f'{pid}.obj') |
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bpy.ops.object.delete(use_global=False, confirm=False) |
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print('正在处理:', filename) |
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bpy.ops.import_scene.obj(filepath=filename) |
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obj = bpy.context.selected_objects[0] |
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print('原始模型尺寸:', obj.dimensions) |
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bpy.ops.object.transform_apply(location=True, rotation=True, scale=True) |
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print('应用后模型尺寸:', obj.dimensions) |
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shutil.copy(filename, os.path.join(path, f'{pid}_original.obj')) |
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filename_original = os.path.join(path, f'{pid}_original.obj') |
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for f in res.json()['data']['fileList']: |
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height = float(f.split('_')[-2][:-2]) * 10 |
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obj = bpy.context.selected_objects[0] |
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print(f'{f}处理前{height}mm模型尺寸: {obj.dimensions}') |
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scale = height / obj.dimensions.z |
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obj.scale = (scale, scale, scale) |
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bpy.ops.object.transform_apply(scale=True) |
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print(f'{f}处理后{height}mm模型尺寸: {obj.dimensions}') |
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bpy.ops.export_scene.obj(filepath=os.path.join(path, f'{pid}.obj')) |
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if os.path.exists(os.path.join(path, f)): |
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os.remove(os.path.join(path, f)) |
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os.rename(os.path.join(path, f'{pid}.obj'), os.path.join(path, f)) |
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config.oss_bucket.put_object_from_file(f'objs/print/{pid}/{f}', os.path.join(path, f)) |
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# 重新加载模型，然后生成数字模型 |
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bpy.ops.object.delete(use_global=False, confirm=False) |
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fix_link_texture(pid) |
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bpy.ops.import_scene.obj(filepath=filename_original) |
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obj = bpy.context.selected_objects[0] |
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bpy.context.view_layer.objects.active = obj |
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obj.select_set(True) |
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if pid == '85964': bpy.ops.wm.save_as_mainfile(filepath=os.path.join(path, f'{pid}_{orderId}.blend')) |
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scale = 90 / obj.dimensions.z |
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obj.scale = (scale, scale, scale) |
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headcount = res.json()['data']['headcount'] |
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bm = bmesh_copy_from_object(obj) |
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obj_volume = round(bm.calc_volume() / 1000, 3) |
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print('volume:', obj_volume) |
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print('weight:', obj_volume * 1.2, 'g') |
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faces = len(obj.data.polygons) |
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print('faces:', faces) |
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upload_res = requests.get(f'{upload_obj_volume_url}?pid={pid}&order_id={orderId}&faces={faces}&volume={obj_volume}&headcount={headcount}') |
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print('上传模型体积:', upload_res.text) |
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# 生成数字模型 |
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faces_dest = 120000 * headcount |
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# 减面 |
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faces_current = len(obj.data.polygons) |
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bpy.ops.object.modifier_add(type='DECIMATE') |
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bpy.context.object.modifiers["Decimate"].ratio = faces_dest / faces_current |
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bpy.ops.object.modifier_apply(modifier="Decimate") |
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bpy.ops.object.origin_set(type='ORIGIN_CENTER_OF_VOLUME', center='MEDIAN') |
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bpy.context.object.location[0] = 0 |
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bpy.context.object.location[1] = 0 |
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bpy.ops.object.transform_apply(location=True, rotation=True, scale=True) |
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bpy.ops.export_scene.obj(filepath=os.path.join(path, f'{pid}_decimate.obj')) |
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bpy.ops.export_scene.gltf(filepath=os.path.join(path, f'{pid}_decimate.glb'), export_format='GLB', export_apply=True, export_jpeg_quality=80) |
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config.oss_bucket.put_object_from_file(f'glbs/3d/{pid}.glb', os.path.join(path, f'{pid}_decimate.glb')) |
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bpy.ops.wm.quit_blender() |
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if __name__ == '__main__': |
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if platform.system() == 'Windows': |
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workdir = 'd:\\' |
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else: |
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workdir = '/data/datasets/' |
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if len(sys.argv) - (sys.argv.index("--") + 1) < 1: |
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print("Usage: blender -b -P resize_model.py -- <orderId>") |
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sys.exit(1) |
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orderId = sys.argv[sys.argv.index("--") + 1] |
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main()
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