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-rw-r--r--support/dxf_export/effect.py26
1 files changed, 18 insertions, 8 deletions
diff --git a/support/dxf_export/effect.py b/support/dxf_export/effect.py
index 52915cc..8168d3f 100644
--- a/support/dxf_export/effect.py
+++ b/support/dxf_export/effect.py
@@ -32,6 +32,7 @@ class DXFExportEffect(inkex.Effect):
self._dxf_instructions = []
self._handle = 255
+ self._layer_indices = { }
self._flatness = float(os.environ['DXF_FLATNESS'])
def _get_user_unit(self):
@@ -66,13 +67,22 @@ class DXFExportEffect(inkex.Effect):
def _get_document_height_attr(self):
return self.document.getroot().xpath('@height', namespaces = inkex.NSS)[0]
+ def _get_layer_index(self, layer_name):
+ index = self._layer_indices.get(layer_name)
+
+ if index is None:
+ index = len(self._layer_indices)
+ self._layer_indices[layer_name] = index
+
+ return index
+
def _add_instruction(self, code, value):
self._dxf_instructions.append((code, str(value)))
- def _add_dxf_line(self, layer, csp):
+ def _add_dxf_line(self, layer_name, csp):
self._add_instruction(0, 'LINE')
- self._add_instruction(8, layer)
- self._add_instruction(62, 4)
+ self._add_instruction(8, layer_name)
+ self._add_instruction(62, self._get_layer_index(layer_name))
self._add_instruction(5, '{:x}'.format(self._handle))
self._add_instruction(100, 'AcDbEntity')
self._add_instruction(100, 'AcDbLine')
@@ -83,7 +93,7 @@ class DXFExportEffect(inkex.Effect):
self._add_instruction(21, repr(csp[1][1]))
self._add_instruction(31, 0.0)
- def _add_dxf_path(self, layer, path):
+ def _add_dxf_path(self, layer_name, path):
cspsubdiv.cspsubdiv(path, self._flatness)
for sub in path:
@@ -91,10 +101,10 @@ class DXFExportEffect(inkex.Effect):
self._handle += 1
s = sub[i]
e = sub[i + 1]
- self._add_dxf_line(layer, [s[1], e[1]])
+ self._add_dxf_line(layer_name, [s[1], e[1]])
def _add_dxf_shape(self, node, document_transform, element_transform):
- layer = self._get_inkscape_layer(node)
+ layer_name = self._get_inkscape_layer_name(node)
path = cubicsuperpath.parsePath(node.get('d'))
transform = simpletransform.composeTransform(
@@ -103,7 +113,7 @@ class DXFExportEffect(inkex.Effect):
simpletransform.applyTransformToPath(transform, path)
- self._add_dxf_path(layer, path)
+ self._add_dxf_path(layer_name, path)
def effect(self):
user_unit = self._get_user_unit()
@@ -153,7 +163,7 @@ class DXFExportEffect(inkex.Effect):
return value * cls._get_unit_factor(unit, default_unit_factor)
@classmethod
- def _get_inkscape_layer(cls, node):
+ def _get_inkscape_layer_name(cls, node):
while node is not None:
layer = node.get(inkex.addNS('label', 'inkscape'))