Directory reorg: Put renderer into its own subdir

1 files changed, 0 insertions, 279 deletions

diff --git a/support/pogojig/inkscape/effect.py b/support/pogojig/inkscape/effect.py
deleted file mode 100644
index 89824e9..0000000
--- a/support/pogojig/inkscape/effect.py
+++ /dev/null
@@ -1,279 +0,0 @@
-"""
-Based on code from Aaron Spike. See
-http://www.bobcookdev.com/inkscape/inkscape-dxf.html
-"""
-
-import collections
-import itertools
-import os
-import pkgutil
-import re
-from lxml import etree
-
-from . import inkex, simpletransform, cubicsuperpath, cspsubdiv, inkscape
-
-
-def _get_unit_factors_map():
-    # Fluctuates somewhat between Inkscape releases _and_ between SVG version.
-    pixels_per_inch = 96.
-    pixels_per_mm = pixels_per_inch / 25.4
-    
-    return {
-        'px': 1.0,
-        'mm': pixels_per_mm,
-        'cm': pixels_per_mm * 10,
-        'm': pixels_per_mm * 1e3,
-        'km': pixels_per_mm * 1e6,
-        'pt': pixels_per_inch / 72,
-        'pc': pixels_per_inch / 6,
-        'in': pixels_per_inch,
-        'ft': pixels_per_inch * 12,
-        'yd': pixels_per_inch * 36}
-
-
-class ExportEffect(inkex.Effect):
-    _unit_factors = _get_unit_factors_map()
-    _asymptote_all_paths_name = 'all'
-    
-    def __init__(self):
-        inkex.Effect.__init__(self)
-        
-        self._flatness = float(os.environ.get('INKSCAPE_DXF_FLATNESS', 0.1))
-        
-        self._layers = None
-        self._paths = None
-    
-    def _get_document_scale(self):
-        """
-        Return scaling factor applied to the document because of a viewBox
-        setting. This currently ignores any setting of a preserveAspectRatio
-        attribute (like Inkscape).
-        """
-        document_height = self._get_height()
-        view_box = self._get_view_box()
-        
-        if view_box is None or document_height is None:
-            return 1
-        else:
-            _, _, _, view_box_height = view_box
-            
-            return document_height / view_box_height
-    
-    def _get_document_height(self):
-        """
-        Get the height of the document in pixels in the document coordinate
-        system as it is interpreted by Inkscape.
-        """
-        view_box = self._get_view_box()
-        document_height = self._get_height()
-        
-        if view_box is not None:
-            _, _, _, view_box_height = view_box
-            
-            return view_box_height
-        elif document_height is not None:
-            return document_height
-        else:
-            return 0
-    
-    def _get_height(self):
-        height_attr = self.document.getroot().get('height')
-        
-        if height_attr is None:
-            return None
-        else:
-            return self._measure_to_pixels(height_attr)
-    
-    def _get_view_box(self):
-        view_box_attr = self.document.getroot().get('viewBox')
-        
-        if view_box_attr is None:
-            return None
-        else:
-            return [float(i) for i in view_box_attr.split()]
-    
-    def _get_shape_paths(self, node, transform):
-        shape = cubicsuperpath.parsePath(node.get('d'))
-        
-        transform = simpletransform.composeTransform(
-            transform,
-            simpletransform.composeParents(node, [[1, 0, 0], [0, 1, 0]]))
-        
-        simpletransform.applyTransformToPath(transform, shape)
-        
-        def iter_paths():
-            for path in shape:
-                cspsubdiv.subdiv(path, self._flatness)
-
-                # path contains two control point coordinates and the actual
-                # coordinates per point.
-                yield [i for _, i, _ in path]
-        
-        return list(iter_paths())
-    
-    def effect(self):
-        document_height = self._get_document_height()
-        document_scale = self._get_document_scale()
-        
-        transform = simpletransform.composeTransform(
-            [[document_scale, 0, 0], [0, document_scale, 0]],
-            [[1, 0, 0], [0, -1, document_height]])
-        
-        layers = inkscape.get_inkscape_layers(self.svg_file)
-        layers_by_inkscape_name = {i.inkscape_name: i for i in layers}
-        
-        def iter_paths():
-            for node in self.document.getroot().xpath('//svg:path', namespaces=inkex.NSS):
-                layer = layers_by_inkscape_name.get(self._get_inkscape_layer_name(node))
-                
-                for path in self._get_shape_paths(node, transform):
-                    yield layer, path
-        
-        self._layers = layers
-        self._paths = list(iter_paths())
-    
-    def write_dxf(self, file):
-        # Scales pixels to millimeters. This is the predominant unit in CAD.
-        unit_factor = self._unit_factors['mm']
-        
-        layer_indices = {l: i for i, l in enumerate(self._layers)}
-        
-        file.write(pkgutil.get_data(__name__, 'dxf_header.txt').decode('ASCII'))
-        
-        def write_instruction(code, value):
-            print(code, file=file)
-            print(value, file=file)
-        
-        handle_iter = itertools.count(256)
-        
-        for layer, path in self._paths:
-            for (x1, y1), (x2, y2) in zip(path, path[1:]):
-                write_instruction(0, 'LINE')
-                
-                if layer is not None:
-                    write_instruction(8, layer.export_name)
-                    write_instruction(62, layer_indices.get(layer, 0))
-                
-                write_instruction(5, '{:x}'.format(next(handle_iter)))
-                write_instruction(100, 'AcDbEntity')
-                write_instruction(100, 'AcDbLine')
-                write_instruction(10, repr(x1 / unit_factor))
-                write_instruction(20, repr(y1 / unit_factor))
-                write_instruction(30, 0.0)
-                write_instruction(11, repr(x2 / unit_factor))
-                write_instruction(21, repr(y2 / unit_factor))
-                write_instruction(31, 0.0)
-        
-        file.write(pkgutil.get_data(__name__, 'dxf_footer.txt').decode('ASCII'))
-    
-    def write_asy(self, file):
-        def write_line(format, *args):
-            print >> file, format.format(*args) + ';'
-
-        # Scales pixels to points. Asymptote uses PostScript points (1 / 72
-        # inch) by default.
-        unit_factor = self._unit_factors['pt']
-        
-        paths_by_layer = collections.defaultdict(list)
-        variable_names = []
-        
-        for layer, path in self._paths:
-            paths_by_layer[layer].append(path)
-        
-        for layer in self._layers + [None]:
-            paths = paths_by_layer[layer]
-            variable_name = self._asymptote_identifier_from_layer(layer)
-            write_line('path[] {}', variable_name)
-            
-            variable_names.append(variable_name)
-            
-            for path in paths:
-                point_strs = ['({}, {})'.format(x / unit_factor, y / unit_factor) for x, y in path]
-
-                # Hack. We should determine this from whether Z or z was used
-                #  to close the path in the SVG document.
-                if path[0] == path[-1]:
-                    point_strs[-1] = 'cycle'
-                
-                write_line('{}.push({})', variable_name, ' -- '.join(point_strs))
-        
-        if self._asymptote_all_paths_name not in variable_names:
-            write_line('path[] {}', self._asymptote_all_paths_name)
-            
-            for i in variable_names:
-                write_line('{}.append({})', self._asymptote_all_paths_name, i)
-    
-    @classmethod
-    def _parse_measure(cls, string):
-        value_match = re.match(r'(([-+]?[0-9]+(\.[0-9]*)?|[-+]?\.[0-9]+)([eE][-+]?[0-9]+)?)', string)
-        unit_match = re.search('(%s)$' % '|'.join(cls._unit_factors.keys()), string)    
-        
-        value = float(string[value_match.start():value_match.end()])
-        
-        if unit_match:
-            unit = string[unit_match.start():unit_match.end()]
-        else:
-            unit = None
-        
-        return value, unit
-    
-    @classmethod
-    def _measure_to_pixels(cls, string):
-        """
-        Parse a string containing a measure and return it's value converted
-        to pixels.
-        """
-        value, unit = cls._parse_measure(string)
-        
-        return value * cls._get_unit_factor(unit)
-    
-    @classmethod
-    def _get_inkscape_layer_name(cls, node):
-        while node is not None:
-            layer = node.get(inkex.addNS('label', 'inkscape'))
-            
-            if layer is not None:
-                return layer
-            
-            node = node.getparent()
-        
-        return None
-    
-    @classmethod
-    def _get_unit_factor(cls, unit):
-        if unit is None:
-            return 1
-        else:
-            return cls._unit_factors[unit]
-    
-    @classmethod
-    def _asymptote_identifier_from_layer(cls, layer):
-        if layer is None:
-            return '_'
-        else:
-            return re.sub('[^a-zA-Z0-9]', '_', layer.export_name)
-    
-    @classmethod
-    def check_document_units(cls, path):
-        with open(path, 'r') as file:
-            p = etree.XMLParser(huge_tree = True)
-            document = etree.parse(file, parser = p)
-        
-        height_attr = document.getroot().get('height')
-        
-        if height_attr is None:
-            raise ValueError(
-                'SVG document has no height attribute. See '
-                'https://github.com/Feuermurmel/openscad-template/wiki/Absolute-Measurements')
-        
-        _, height_unit = cls._parse_measure(height_attr)
-        
-        if height_unit is None or height_unit == 'px':
-            raise ValueError(
-                'Height of SVG document is not an absolute measure. See '
-                'https://github.com/Feuermurmel/openscad-template/wiki/Absolute-Measurements')
-        
-        if document.getroot().get('viewBox') is None:
-            raise ValueError(
-                'SVG document has no viewBox attribute. See '
-                'https://github.com/Feuermurmel/openscad-template/wiki/Absolute-Measurements')