172 lines
No EOL
7.6 KiB
Python
172 lines
No EOL
7.6 KiB
Python
from __future__ import annotations
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from typing import Any
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from numpy.typing import NDArray
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from pathlib import Path
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import numpy as np
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import os, shutil, tempfile
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import xml.etree.ElementTree as ET
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from datetime import date
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from ..blender.blender_mesh_capture import SlicingObject, SlicingGroup, SlicingCollection
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script_dir = os.path.dirname(os.path.abspath(__file__))
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def write_metadata_xml(group: SlicingGroup, filepath):
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# Custom sorting order for object types
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object_type_order = {
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'ModelPart': 0,
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'NegativeVolume': 1,
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'ParameterModifier': 2,
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'SupportBlocker': 3,
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'SupportEnforcer': 4
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}
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xml_content = ET.Element("config")
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valid_collections = {k: c for k, c in group.collections.items() if c.meshes}
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for j, (k, collection) in enumerate(valid_collections.items()):
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sorted_data: list[tuple[NDArray[Any], NDArray[Any], SlicingObject]] = sorted(zip(collection.mesh_start_ids, collection.mesh_end_ids, collection.objects), key=lambda x: object_type_order.get(x[2].object_type, 5))
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object_elem = ET.SubElement(xml_content, "object", id=str(j+1), instances_count="1")
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ET.SubElement(object_elem, "metadata", type="object", key="name", value=collection.name)
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for i, (start, end, metadata) in enumerate(sorted_data):
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if metadata.object_type == "ModelPart":
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for mod in metadata.modifiers:
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ET.SubElement(object_elem, "metadata", type="object", key=mod['param_id'], value=mod['param_value'])
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volume_elem = ET.SubElement(object_elem, "volume", firstid=str(start), lastid=str(end))
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ET.SubElement(volume_elem, "metadata", type="volume", key="name", value=metadata.name)
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if metadata.object_type == "ParameterModifier":
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ET.SubElement(volume_elem, "metadata", type="volume", key="modifier", value="1")
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for mod in metadata.modifiers:
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ET.SubElement(volume_elem, "metadata", type="volume", key=mod['param_id'], value=mod['param_value'])
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ET.SubElement(volume_elem, "metadata", type="volume", key="volume_type", value=metadata.object_type)
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ET.SubElement(volume_elem, "metadata", type="volume", key="extruder", value=str(metadata.extruder))
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ET.SubElement(volume_elem, "metadata", type="volume", key="source_object_id", value="0")
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ET.SubElement(volume_elem, "metadata", type="volume", key="source_volume_id", value=str(i))
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ET.SubElement(volume_elem, "metadata", type="volume", key="matrix", value="1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1")
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ET.SubElement(volume_elem, "mesh", edges_fixed="0", degenerate_facets="0", facets_removed="0", facets_reversed="0", backwards_edges="0")
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ET.indent(xml_content)
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xml_tree = ET.ElementTree(xml_content)
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xml_tree.write(filepath, encoding="UTF-8", xml_declaration=True)
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def write_wipe_tower_xml(group: SlicingGroup, filename):
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with open(filename, 'w', encoding="UTF-8") as file:
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file.write(f'<?xml version="1.0" encoding="utf-8"?>\n')
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file.write(f'<wipe_tower_information bed_idx="0" position_x="{group.wipe_tower_xy[0]}" position_y="{group.wipe_tower_xy[1]}" rotation_deg="{group.wipe_tower_rotation_deg}"/>\n')
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def write_model_xml(group: SlicingGroup, filename: str):
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now = date.today().isoformat()
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# Open file for writing
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with open(filename, 'w', encoding="UTF-8") as file:
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# Write the XML declaration and opening model tag
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file.write(f'<?xml version="1.0" encoding="UTF-8"?>\n')
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file.write(f'<model xmlns="" unit="millimeter" xml:lang="en-US" xmlns:slic3rpe="">\n')
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# Write metadata entries using list comprehension
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metadata_entries: list[tuple[str, str]] = [
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("slic3rpe:Version3mf", "1"),
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("Title", "box"),
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("Designer", ""),
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("Description", "box"),
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("Copyright", ""),
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("LicenseTerms", ""),
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("Rating", ""),
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("CreationDate", now),
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("ModificationDate", now),
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("Application", "PrusaSlicer-2.9.0")
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]
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file.writelines([f' <metadata name="{name}">{value}</metadata>\n' for name, value in metadata_entries])
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# Write resources element and object using list comprehension
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file.write(f' <resources>\n')
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verts_template = np.vectorize(lambda x, y, z: '<vertex x="%.6f" y="%.6f" z="%.6f" />\n' % (x, y, z))
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idx_template = np.vectorize(lambda a, b, c: '<triangle v1="%d" v2="%d" v3="%d" />\n' % (a, b, c))
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valid_collections: dict[str, SlicingCollection] = {k: c for k, c in group.collections.items() if c.meshes}
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for i, (k, collection) in enumerate[tuple[str, SlicingCollection]](valid_collections.items()):
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if not collection.meshes: continue
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uv, t_idx = collection.unique_verts
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if uv.size and t_idx.size:
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file.write(f' <object id="{str(i+1)}" type="model">\n')
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file.write(f' <mesh>\n')
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file.write(f' <vertices>\n')
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file.writelines(verts_template(uv[:,0], uv[:,1], uv[:,2]))
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file.write(f' </vertices>\n')
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file.write(f' <triangles>\n')
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file.writelines(idx_template(t_idx[:,0], t_idx[:,1], t_idx[:,2]))
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file.write(f' </triangles>\n')
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file.write(f' </mesh>\n')
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file.write(f' </object>\n')
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file.write(f' </resources>\n')
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# Write build element
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file.write(f' <build>\n')
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ox, oy, oz = group.object_offset[0], group.object_offset[1], group.object_offset[2]
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transform_str = f"1 0 0 0 1 0 0 0 1 {ox} {oy} {oz}"
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for i, k in enumerate(valid_collections):
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if not valid_collections[k].unique_verts[0].size: continue
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file.writelines([f' <item objectid="{str(i+1)}" transform="{transform_str}" printable="1" />\n' ])
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file.write(f' </build>\n')
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# Close the model tag
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file.write(f'</model>\n')
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def to_3mf(folder_path, output_base_path):
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zip_file_path = shutil.make_archive(os.path.splitext(output_base_path)[0], 'zip', folder_path)
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new_file_path = os.path.splitext(zip_file_path)[0] + '.3mf'
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os.replace(zip_file_path, new_file_path)
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def write_z_gcodes(z_gcodes, filename: str):
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root = ET.Element("custom_gcodes_per_print_z", bed_idx="0")
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for c in z_gcodes:
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ET.SubElement(root, "code", {
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"print_z": str(c.z),
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"type": str(c.type),
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"extruder": str(c.extruder),
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"color": c.color,
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"extra": c.extra,
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"gcode": c.gcode,
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})
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ET.SubElement(root, "mode", {"value": "SingleExtruder"})
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ET.ElementTree(root).write(filename, encoding="utf-8", xml_declaration=True)
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def prepare_3mf(filepath: Path, geoms: SlicingGroup, conf, z_gcodes) -> None:
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source_folder = os.path.join(script_dir, 'prusaslicer_3mf')
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temp_dir = tempfile.mkdtemp()
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shutil.copytree(source_folder, temp_dir, dirs_exist_ok=True)
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os.makedirs(os.path.join(temp_dir, '3D'), exist_ok=True)
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os.makedirs(os.path.join(temp_dir, 'Metadata'), exist_ok=True)
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write_model_xml(geoms, os.path.join(temp_dir, '3D', '3dmodel.model'))
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write_metadata_xml(geoms, os.path.join(temp_dir, 'Metadata', 'Slic3r_PE_model.config'))
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write_wipe_tower_xml(geoms, os.path.join(temp_dir, 'Metadata', 'Prusa_Slicer_wipe_tower_information.xml'))
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write_z_gcodes(z_gcodes, os.path.join(temp_dir, 'Metadata', 'Prusa_Slicer_custom_gcode_per_print_z.xml'))
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conf.write_ini_3mf(os.path.join(temp_dir, 'Metadata', 'Slic3r_PE.config'))
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to_3mf(temp_dir, filepath)
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return None |