mirror of
https://github.com/IfcOpenShell/IfcOpenShell.git
synced 2026-09-20 15:08:51 +00:00
Dion Moult
140 lines
5.3 KiB
Python
140 lines
5.3 KiB
Python
import xml.etree.ElementTree as ET
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import urllib.parse
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import pystache
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import ntpath
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import os
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from shutil import copy
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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, name):
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sheet_path = '{}sheets/{}.svg'.format(self.data_dir, name)
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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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root.attrib['width'] = '841mm'
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root.attrib['height'] = '594mm'
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titleblock = ET.SubElement(root, 'image')
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titleblock.attrib['xlink:href'] = '../templates/titleblock.svg'
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titleblock.attrib['x'] = '0'
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titleblock.attrib['y'] = '0'
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titleblock.attrib['width'] = '841mm'
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titleblock.attrib['height'] = '594mm'
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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_view(self, view_name, sheet_name):
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sheet_path = '{}sheets/{}.svg'.format(self.data_dir, sheet_name)
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view_path = '{}diagrams/{}.svg'.format(self.data_dir, view_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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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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# 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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background = ET.SubElement(view, 'image')
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background.attrib['xlink:href'] = '../diagrams/{}.png'.format(view_name)
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background.attrib['x'] = '0'
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background.attrib['y'] = '0'
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background.attrib['width'] = view_root.attrib.get('width')
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background.attrib['height'] = view_root.attrib.get('height')
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foreground = ET.SubElement(view, 'image')
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foreground.attrib['xlink:href'] = '../diagrams/{}.svg'.format(view_name)
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foreground.attrib['x'] = '0'
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foreground.attrib['y'] = '0'
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foreground.attrib['width'] = view_root.attrib.get('width')
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foreground.attrib['height'] = view_root.attrib.get('height')
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title = ET.SubElement(view, 'image')
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title.attrib['xlink:href'] = '../templates/view-title.svg'
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title.attrib['x'] = '0'
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title.attrib['y'] = view_root.attrib.get('height')
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sheet_tree.write(sheet_path)
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def build(self, sheet_name):
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os.makedirs('{}build/{}/'.format(self.data_dir, sheet_name), exist_ok=True)
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sheet_path = '{}sheets/{}.svg'.format(self.data_dir, sheet_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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tree = ET.parse(sheet_path)
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root = tree.getroot()
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titleblock = root.findall('{http://www.w3.org/2000/svg}image')[0]
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root.append(self.parse_embedded_svg(titleblock, {
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'number': sheet_name,
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'revision': 'A'
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}))
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root.remove(titleblock)
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views = root.findall('{http://www.w3.org/2000/svg}g')
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view_number = 1
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for view in views:
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images = view.findall('{http://www.w3.org/2000/svg}image')
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background = images[0]
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foreground = images[1]
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view_title = images[2]
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self.scale = 'NTS'
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# Add foreground
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view.append(self.parse_embedded_svg(foreground, {}))
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# Add background
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background_path = '{}sheets/{}'.format(self.data_dir, self.get_href(background))
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copy(background_path, '{}build/{}/'.format(self.data_dir, sheet_name))
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# Add view title
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foreground_path = self.get_href(foreground)
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view.append(self.parse_embedded_svg(view_title, {
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'no' : view_number,
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'name': ntpath.basename(foreground_path)[0:-4],
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'scale': self.scale
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}))
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for image in images:
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view.remove(image)
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view_number += 1
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with open('{}build/{}/{}.svg'.format(self.data_dir, sheet_name, sheet_name), 'wb') as output:
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tree.write(output)
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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(image.attrib.get('x'), image.attrib.get('y'))
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svg_path = self.get_href(image)
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with open('{}sheets/{}'.format(self.data_dir, svg_path), 'r') as template:
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embedded = ET.fromstring(pystache.render(template.read(), data))
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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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group.append(embedded)
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return group
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