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148 lines
6.2 KiB
148 lines
6.2 KiB
import bpy, sys, os, math, bmesh |
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# from PIL import Image, ImageDraw, ImageFont |
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def gen_qrcode(pid): |
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fontHeightMax = 40 |
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fontsize = 1 |
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qr = qrcode.QRCode() |
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qr.border = 2 |
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qr.add_data(pid) |
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img = qr.make_image(fit=True) |
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img = img.transform((250, 294), Image.Transform.EXTENT, (0, 0, 250, 294), fillcolor='white') |
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cwd = os.path.dirname(os.path.abspath(__file__)) |
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fontfile = os.path.join(cwd, 'fonts', 'Helvetica.ttf') |
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font = ImageFont.truetype(fontfile, fontsize) |
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while font.getsize(pid)[1] <= fontHeightMax and font.getsize(pid)[0] <= 240: |
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fontsize += 1 |
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font = ImageFont.truetype(fontfile, fontsize) |
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fontsize -= 1 |
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captionx = (250 - font.getsize(pid)[0]) / 2 |
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draw = ImageDraw.Draw(img) |
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draw.text((captionx, 242), pid, font=font) |
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img.show() |
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img.save(f'{workdir}{pid}.png') |
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def auto_rotate(pid): |
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# 坐标复位 |
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obj = bpy.context.selected_objects[0] |
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obj.rotation_euler[0] = 0 |
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bpy.ops.object.transform_apply(location=True, rotation=True, scale=True) |
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bpy.ops.object.origin_set(type='ORIGIN_CENTER_OF_VOLUME', center='MEDIAN') |
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bpy.ops.object.align(align_mode='OPT_1', relative_to='OPT_1', align_axis={'Y', 'Z'}) |
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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=f'{workdir}{pid}_align_yz.obj') |
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# 躺平到打印机排版需要的坐标与角度 |
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obj.rotation_euler = (math.radians(90), math.radians(90), 0) |
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bpy.ops.object.transform_apply(rotation=True) |
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# bpy.ops.export_scene.obj(filepath=f'{workdir}{pid}_rotate_y90.obj') |
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heights = {} |
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min_height = 999999 |
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min_i = 0 |
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max_height = -999999 |
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max_i = 0 |
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bpy.ops.object.origin_set(type='ORIGIN_CENTER_OF_VOLUME', center='MEDIAN') |
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bpy.ops.object.align(align_mode='OPT_1', relative_to='OPT_3', align_axis={'X', 'Y', 'Z'}) |
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# 步进精度2旋转X轴到180度，找到Y轴最低点和最高点，其中最低点为打印 |
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step = 2 |
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i = 0 |
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while i <= 180: |
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obj.rotation_euler = (math.radians(step), 0, 0) |
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bpy.ops.object.transform_apply(rotation=True) |
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if obj.dimensions[1] < min_height: |
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min_height = obj.dimensions[1] |
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min_i = i |
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if obj.dimensions[1] > max_height: |
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max_height = obj.dimensions[1] |
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max_i = i |
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heights[i] = (obj.dimensions[0], obj.dimensions[1], obj.dimensions[2]) |
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print(i, heights[i]) |
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i += step |
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obj.rotation_euler = (0, 0, 0) |
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bpy.ops.object.transform_apply(rotation=True) |
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obj.rotation_euler = (math.radians(min_i), 0, 0) |
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bpy.ops.object.transform_apply(rotation=True) |
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bpy.ops.export_scene.obj(filepath=f'{workdir}{pid}.obj') |
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# obj.rotation_euler = (0, 0, 0) |
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# bpy.ops.object.transform_apply(rotation=True) |
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# obj.rotation_euler = (math.radians(max_i), 0, 0) |
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# bpy.ops.object.transform_apply(rotation=True) |
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# bpy.ops.export_scene.obj(filepath=f'{workdir}{pid}_maxz.obj') |
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print(f'最小高度: {min_height} @ {heights[min_i]}min_i:{min_i}' , f'最大高度: {max_height} @ {heights[max_i]}max_i:{max_i}') |
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def cut_obj(pid): |
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# 根据定位用一个面切割模型 |
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offset = 45.5 |
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radian = math.radians(90) |
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bpy.ops.mesh.primitive_plane_add(size=200, enter_editmode=False, align='WORLD', location=(offset, 0, 0), rotation=(0, radian, 0), scale=(1, 1, 1)) |
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# 布尔切割，保留交集切面 |
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bpy.ops.object.modifier_add(type='BOOLEAN') |
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bpy.context.object.modifiers["Boolean"].object = bpy.data.objects[pid] |
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bpy.context.object.modifiers["Boolean"].operation = 'INTERSECT' |
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bpy.context.object.modifiers["Boolean"].solver = 'FAST' |
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bpy.ops.object.modifier_apply(modifier="Boolean") |
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# 拆分切割面为多个多边形，然后遍历多边形，找到最大的面积 |
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bpy.ops.mesh.separate(type='LOOSE') |
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max_area = 0 |
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max_obj = None |
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for obj in bpy.data.objects: |
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if obj.type == 'MESH' and obj.name.startswith('Plane'): |
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area = obj.data.polygons[0].area |
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if area > max_area: |
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max_area = area |
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max_obj = obj |
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# 选中最大面积的多边形，然后计算中心点 |
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bpy.ops.object.select_all(action='DESELECT') |
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max_obj.select_set(True) |
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bpy.context.view_layer.objects.active = max_obj |
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bpy.ops.object.origin_set(type='ORIGIN_GEOMETRY') |
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return max_obj |
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def main(): |
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filename = f'{workdir}{pid}.obj' |
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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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auto_rotate(pid) |
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# gen_qrcode(pid) |
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# 脚底切片，查找最大面积，计算中心点，计算坐标位置，怼入二维码贴片 |
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max_obj = cut_obj(pid) |
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bpy.ops.import_scene.obj(filepath=f'{workdir}qr.obj') |
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qr_obj = bpy.data.objects['Cube'] |
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shore_obj = bpy.data.objects['Cube.001'] |
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# bpy.data.objects['Cube'].origin_set(type='ORIGIN_GEOMETRY') |
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# bpy.data.objects['Cube.001'].origin_set(type='ORIGIN_GEOMETRY') |
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# bpy.data.objects['Cube.002'].origin_set(type='ORIGIN_GEOMETRY') |
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# bpy.data.objects['Cube.003'].origin_set(type='ORIGIN_GEOMETRY') |
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bpy.data.objects['Cube'] = (math.radians(90), math.radians(90), 0) |
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bpy.data.objects['Cube.001'].rotation_euler = (math.radians(90), math.radians(90), 0) |
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bpy.data.objects['Cube.002'].rotation_euler = (math.radians(90), math.radians(90), 0) |
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bpy.data.objects['Cube.003'].rotation_euler = (math.radians(90), math.radians(90), 0) |
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qr_obj.location = (max_obj.location[0] - qr_obj.dimensions[1] / 2 - shore_obj.dimensions[1]/2, max_obj.location[1], max_obj.location[2]) |
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shore_obj.location = (qr_obj.location[0] - shore_obj.dimensions[1]/2, max_obj.location[1], max_obj.location[2]) |
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bpy.data.objects['Cube.002'].location = (shore_obj.location[0], shore_obj.location[1]+0.2, shore_obj.location[2]) |
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bpy.data.objects['Cube.003'].location = (shore_obj.location[0], shore_obj.location[1]-0.2, shore_obj.location[2]) |
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bpy.ops.object.transform_apply(rotation=True, location=True, scale=True) |
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if __name__ == '__main__': |
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workdir = '/home/water/Downloads/' |
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if len(sys.argv) - (sys.argv.index("--") +1) < 1: |
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print("Usage: blender -b -P auto_qrcode.py -- <pid>") |
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sys.exit(1) |
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pid = sys.argv[sys.argv.index("--") + 1] |
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main() |