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Dion Moult
391 lines
17 KiB
Python
391 lines
17 KiB
Python
# BlenderBIM Add-on - OpenBIM Blender Add-on
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# Copyright (C) 2020, 2021 Dion Moult <dion@thinkmoult.com>
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#
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# This file is part of BlenderBIM Add-on.
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#
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# BlenderBIM Add-on is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# BlenderBIM Add-on is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with BlenderBIM Add-on. If not, see <http://www.gnu.org/licenses/>.
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import os
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import bpy
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import uuid
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import shutil
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import ntpath
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import pystache
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import urllib.parse
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import xml.etree.ElementTree as ET
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import blenderbim.tool as tool
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import ifcopenshell.util.geolocation
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from xml.dom import minidom
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class SheetBuilder:
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def __init__(self):
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self.data_dir = None
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self.scale = "NTS"
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def create(self, sheet_path, titleblock_name):
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sheet_dir = os.path.dirname(sheet_path)
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root = ET.Element("svg")
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root.attrib["xmlns"] = "http://www.w3.org/2000/svg"
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root.attrib["xmlns:xlink"] = "http://www.w3.org/1999/xlink"
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root.attrib["id"] = "root"
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root.attrib["version"] = "1.1"
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titleblock_path = os.path.join(self.data_dir, "templates", "titleblocks", titleblock_name + ".svg")
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view_root = ET.parse(titleblock_path).getroot()
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view_width = self.convert_to_mm(view_root.attrib.get("width"))
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view_height = self.convert_to_mm(view_root.attrib.get("height"))
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view = ET.SubElement(root, "g")
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view.attrib["data-type"] = "titleblock"
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titleblock = ET.SubElement(view, "image")
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titleblock.attrib["xlink:href"] = os.path.relpath(
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tool.Drawing.get_default_titleblock_path(titleblock_name), sheet_dir
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)
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titleblock.attrib["x"] = "0"
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titleblock.attrib["y"] = "0"
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titleblock.attrib["width"] = str(view_width)
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titleblock.attrib["height"] = str(view_height)
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root.attrib["width"] = "{}mm".format(view_width)
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root.attrib["height"] = "{}mm".format(view_height)
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root.attrib["viewBox"] = "0 0 {} {}".format(view_width, view_height)
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os.makedirs(sheet_dir, exist_ok=True)
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os.makedirs(os.path.join(sheet_dir, "titleblocks"), exist_ok=True)
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sheet_titleblock_path = os.path.join(sheet_dir, "titleblocks", titleblock_name + ".svg")
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if not os.path.exists(sheet_titleblock_path):
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shutil.copy(titleblock_path, sheet_titleblock_path)
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with open(sheet_path, "w") as f:
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f.write(minidom.parseString(ET.tostring(root)).toprettyxml(indent=" "))
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def add_drawing(self, reference, drawing, sheet):
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filename = drawing.Name
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sheet_path = tool.Drawing.get_document_uri(sheet)
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sheet_name = os.path.splitext(os.path.basename(sheet_path))[0]
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sheet_dir = os.path.dirname(sheet_path)
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drawing_path = tool.Drawing.get_document_uri(tool.Drawing.get_drawing_reference(drawing))
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drawing_path = tool.Ifc.resolve_uri(drawing_path)
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underlay_path = os.path.splitext(drawing_path)[0] + "-underlay.png"
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if not os.path.isfile(sheet_path):
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raise FileNotFoundError
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ET.register_namespace("", "http://www.w3.org/2000/svg")
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ET.register_namespace("xlink", "http://www.w3.org/1999/xlink")
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sheet_tree = ET.parse(sheet_path)
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sheet_root = sheet_tree.getroot()
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view_tree = ET.parse(drawing_path)
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view_root = view_tree.getroot()
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# The view is placed into a group with a background image element.
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# Although the foreground SVG already has a background, it is duplicated
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# here to accommodate browsers which do not nest images.
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view = ET.SubElement(sheet_root, "g")
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view.attrib["data-type"] = "drawing"
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view.attrib["data-id"] = str(reference.id())
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view.attrib["data-drawing"] = drawing.GlobalId
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view_width = self.convert_to_mm(view_root.attrib.get("width"))
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view_height = self.convert_to_mm(view_root.attrib.get("height"))
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if os.path.isfile(underlay_path):
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background = ET.SubElement(view, "image")
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background.attrib["data-type"] = "background"
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background.attrib["xlink:href"] = os.path.relpath(underlay_path, sheet_dir)
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background.attrib["x"] = "30"
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background.attrib["y"] = "30"
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background.attrib["width"] = str(view_width)
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background.attrib["height"] = str(view_height)
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if os.path.isfile(drawing_path):
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foreground = ET.SubElement(view, "image")
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foreground.attrib["data-type"] = "foreground"
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foreground.attrib["xlink:href"] = os.path.relpath(drawing_path, sheet_dir)
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foreground.attrib["x"] = "30"
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foreground.attrib["y"] = "30"
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foreground.attrib["width"] = str(view_width)
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foreground.attrib["height"] = str(view_height)
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self.add_view_title(30, view_height + 35, view, sheet_dir)
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sheet_tree.write(sheet_path)
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def remove_drawing(self, reference, sheet):
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ET.register_namespace("", "http://www.w3.org/2000/svg")
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sheet_path = tool.Drawing.get_document_uri(sheet)
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sheet_tree = ET.parse(sheet_path)
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sheet_root = sheet_tree.getroot()
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for g in sheet_root.findall("{http://www.w3.org/2000/svg}g"):
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if g.attrib.get("data-id") == str(reference.id()):
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sheet_root.remove(g)
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break
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sheet_tree.write(sheet_path)
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def add_schedule(self, reference, schedule, sheet):
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view_path = tool.Drawing.get_path_with_ext(tool.Drawing.get_document_uri(schedule), "svg")
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if not os.path.exists(view_path):
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tool.Drawing.create_svg_schedule(schedule)
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schedule_name = os.path.splitext(os.path.basename(view_path))[0]
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sheet_path = tool.Drawing.get_document_uri(sheet)
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sheet_dir = os.path.dirname(sheet_path)
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ET.register_namespace("", "http://www.w3.org/2000/svg")
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ET.register_namespace("xlink", "http://www.w3.org/1999/xlink")
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sheet_tree = ET.parse(sheet_path)
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sheet_root = sheet_tree.getroot()
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view_tree = ET.parse(view_path)
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view_root = view_tree.getroot()
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view_width = self.convert_to_mm(view_root.attrib.get("width"))
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view_height = self.convert_to_mm(view_root.attrib.get("height"))
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view = ET.SubElement(sheet_root, "g")
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view.attrib["data-type"] = "schedule"
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view.attrib["data-id"] = str(reference.id())
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view.attrib["data-schedule"] = str(schedule.id())
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foreground = ET.SubElement(view, "image")
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foreground.attrib["data-type"] = "table"
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foreground.attrib["xlink:href"] = os.path.relpath(view_path, sheet_dir)
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foreground.attrib["x"] = "30"
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foreground.attrib["y"] = "30"
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foreground.attrib["width"] = str(view_width)
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foreground.attrib["height"] = str(view_height)
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self.add_view_title(30, view_height + 35, view, sheet_dir)
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sheet_tree.write(sheet_path)
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def add_view_title(self, x, y, parent, sheet_dir):
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title_path = os.path.join(sheet_dir, "assets", "view-title.svg")
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os.makedirs(os.path.dirname(title_path), exist_ok=True)
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if not os.path.exists(title_path):
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ootb_title = os.path.join(bpy.context.scene.BIMProperties.data_dir, "assets", "view-title.svg")
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shutil.copy(ootb_title, title_path)
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title_tree = ET.parse(title_path)
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title_root = title_tree.getroot()
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title = ET.SubElement(parent, "image")
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title.attrib["data-type"] = "view-title"
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title.attrib["xlink:href"] = os.path.relpath(title_path, sheet_dir)
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title.attrib["x"] = str(x)
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title.attrib["y"] = str(y)
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title.attrib["width"] = str(self.convert_to_mm(title_root.attrib.get("width")))
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title.attrib["height"] = str(self.convert_to_mm(title_root.attrib.get("height")))
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def build(self, sheet):
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sheet_path = tool.Drawing.get_document_uri(sheet)
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sheet_name = os.path.splitext(os.path.basename(sheet_path))[0]
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self.sheet_dir = os.path.dirname(sheet_path)
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docs_dir = tool.Ifc.resolve_uri(os.path.join(bpy.context.scene.DocProperties.docs_dir, sheet_name))
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os.makedirs(docs_dir, exist_ok=True)
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ET.register_namespace("", "http://www.w3.org/2000/svg")
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ET.register_namespace("xlink", "http://www.w3.org/1999/xlink")
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tree = ET.parse(sheet_path)
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root = tree.getroot()
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self.defs = ET.Element("defs")
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root.append(self.defs)
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self.build_titleblock(root, sheet)
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self.build_drawings(root, sheet)
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self.build_schedules(root)
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output_filename = os.path.join(docs_dir, f"{sheet_name}.svg")
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with open(output_filename, "wb") as output:
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tree.write(output)
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return output_filename
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def build_titleblock(self, root, sheet):
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titleblock = root.findall('{http://www.w3.org/2000/svg}g[@data-type="titleblock"]')[0]
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image = titleblock.findall("{http://www.w3.org/2000/svg}image")[0]
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g = self.parse_embedded_svg(image, sheet.get_info())
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grid_north = ifcopenshell.util.geolocation.get_grid_north(tool.Ifc.get()) * -1
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true_north = ifcopenshell.util.geolocation.get_true_north(tool.Ifc.get()) * -1
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for north in g.iterfind('.//{http://www.w3.org/2000/svg}g[@data-type="grid-north"]'):
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north.attrib["transform"] = f"rotate({grid_north})"
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for north in g.iterfind('.//{http://www.w3.org/2000/svg}g[@data-type="true-north"]'):
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north.attrib["transform"] = f"rotate({true_north})"
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titleblock.append(g)
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titleblock.remove(image)
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def build_drawings(self, root, sheet):
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sheet_name = os.path.splitext(os.path.basename(tool.Drawing.get_document_uri(sheet)))[0]
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for view in root.findall('{http://www.w3.org/2000/svg}g[@data-type="drawing"]'):
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reference = tool.Ifc.get().by_id(int(view.attrib["data-id"]))
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drawing = tool.Ifc.get().by_id(view.attrib["data-drawing"])
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images = view.findall("{http://www.w3.org/2000/svg}image")
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background = None
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foreground = None
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view_title = None
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for image in images:
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if image.attrib["data-type"] == "background":
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background = image
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elif image.attrib["data-type"] == "foreground":
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foreground = image
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elif image.attrib["data-type"] == "view-title":
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view_title = image
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if foreground is not None:
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view.append(self.parse_embedded_svg(foreground, {}))
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if background is not None:
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background_path = os.path.join(self.data_dir, "sheets", self.get_href(background))
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shutil.copy(background_path, os.path.join(self.data_dir, "build", sheet_name))
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if view_title is not None:
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foreground_path = self.get_href(foreground)
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data = reference.get_info()
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if not data["Name"]:
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data["Name"] = ntpath.basename(foreground_path)[0:-4]
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data["Scale"] = tool.Drawing.get_drawing_human_scale(drawing)
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view.append(self.parse_embedded_svg(view_title, data))
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for image in images:
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view.remove(image)
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def build_schedules(self, root):
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for view in root.findall('{http://www.w3.org/2000/svg}g[@data-type="schedule"]'):
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reference = tool.Ifc.get().by_id(int(view.attrib["data-id"]))
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schedule = tool.Ifc.get().by_id(int(view.attrib["data-schedule"]))
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images = view.findall("{http://www.w3.org/2000/svg}image")
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table = None
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view_title = None
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for image in images:
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if image.attrib["data-type"] == "table":
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table = image
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elif image.attrib["data-type"] == "view-title":
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view_title = image
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if table is not None:
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view.append(self.parse_embedded_svg(table, {}))
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if view_title is not None:
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path = self.get_href(table)
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data = reference.get_info()
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if not data["Name"]:
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data["Name"] = schedule.Name or "Unnamed"
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view.append(self.parse_embedded_svg(view_title, data))
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for image in images:
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view.remove(image)
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def get_href(self, element):
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return urllib.parse.unquote(element.attrib.get("{http://www.w3.org/1999/xlink}href"))
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def parse_embedded_svg(self, image, data):
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group = ET.Element("g")
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group.attrib["transform"] = "translate({},{})".format(
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self.convert_to_mm(image.attrib.get("x")), self.convert_to_mm(image.attrib.get("y"))
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)
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# Convert viewBox into a clip path
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clip_id = str(uuid.uuid4())
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group.attrib["clip-path"] = f"url(#{clip_id})"
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clip_path = ET.Element("clipPath")
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clip_path.attrib["id"] = clip_id
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rect = ET.Element("rect")
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rect.attrib["x"] = "0"
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rect.attrib["y"] = "0"
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rect.attrib["width"] = str(self.convert_to_mm(image.attrib.get("width")))
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rect.attrib["height"] = str(self.convert_to_mm(image.attrib.get("height")))
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clip_path.append(rect)
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self.defs.append(clip_path)
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svg_path = self.get_href(image)
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with open(os.path.join(self.sheet_dir, svg_path), "r") as template:
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embedded = ET.fromstring(pystache.render(template.read(), data))
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# viewBox should not be nested
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embedded.attrib["viewBox"] = ""
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# TODO: This should not be in this function
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self.scale = embedded.attrib.get("data-scale")
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images = embedded.findall("{http://www.w3.org/2000/svg}image")
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for image in images:
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new_href = ntpath.basename(image.attrib.get("{http://www.w3.org/1999/xlink}href"))
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image.attrib["{http://www.w3.org/1999/xlink}href"] = new_href
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for child in embedded:
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if "namedview" in child.tag:
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continue
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group.append(child)
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return group
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def change_titleblock(self, sheet, titleblock_name):
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ET.register_namespace("", "http://www.w3.org/2000/svg")
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ET.register_namespace("xlink", "http://www.w3.org/1999/xlink")
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titleblock_svg_path = os.path.join(self.data_dir, "templates", "titleblocks", f"{titleblock_name}.svg")
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view_root = ET.parse(titleblock_svg_path).getroot()
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view_width = self.convert_to_mm(view_root.attrib.get("width"))
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view_height = self.convert_to_mm(view_root.attrib.get("height"))
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sheet_dir = os.path.join(self.data_dir, "sheets")
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sheet_name = os.path.splitext(os.path.basename(tool.Drawing.get_document_uri(sheet)))[0]
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sheet_path = os.path.join(sheet_dir, sheet_name + ".svg")
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sheet_tree = ET.parse(sheet_path)
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root = sheet_tree.getroot()
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titleblock = sheet_tree.findall('{http://www.w3.org/2000/svg}g[@data-type="titleblock"]')[0]
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image = titleblock.findall("{http://www.w3.org/2000/svg}image[@{http://www.w3.org/1999/xlink}href]")[0]
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image.attrib["{http://www.w3.org/1999/xlink}href"] = f"../templates/titleblocks/{titleblock_name}.svg"
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image.attrib["width"] = str(view_width)
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image.attrib["height"] = str(view_height)
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root.attrib["width"] = "{}mm".format(view_width)
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root.attrib["height"] = "{}mm".format(view_height)
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root.attrib["viewBox"] = "0 0 {} {}".format(view_width, view_height)
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sheet_tree.write(sheet_path)
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def convert_to_mm(self, value):
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# CSS is what defines these possibilities
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# https://www.w3.org/TR/SVG/refs.html#ref-css-values-3
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# https://www.w3.org/TR/css-values-3/#absolute-lengths
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# The relative units are not implemented. Go fish.
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if "cm" in value:
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return float(value[0:-2]) * 10
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elif "mm" in value:
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return float(value[0:-2])
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elif "Q" in value:
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return float(value[0:-1]) * (1 / 40) * 10
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elif "in" in value:
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return float(value[0:-2]) * 2.54 * 10
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elif "pc" in value:
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return float(value[0:-2]) * (1 / 6) * 2.54 * 10
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elif "pt" in value:
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return float(value[0:-2]) * (1 / 72) * 2.54 * 10
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elif "px" in value:
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return float(value[0:-2]) * (1 / 96) * 2.54 * 10
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return float(value)
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def mm_to_px(self, value):
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return (value / 25.4) * 96
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