some color support, multi-line text, automatic scaling

(bzr r6898)

1 files changed, 47 insertions, 16 deletions

diff --git a/share/extensions/dxf_input.py b/share/extensions/dxf_input.py
index 7114d3447..603cc94ab 100644
--- a/share/extensions/dxf_input.py
+++ b/share/extensions/dxf_input.py
@@ -3,6 +3,8 @@
 dxf_input.py - input a DXF file >= (AutoCAD Release 13 == AC1012)

 

 Copyright (C) 2008 Alvin Penner, penner@vaxxine.com

+- thanks to Aaron Spike for inkex.py and simplestyle.py

+- without which this would not have been possible

 

 This program is free software; you can redistribute it and/or modify

 it under the terms of the GNU General Public License as published by

@@ -31,13 +33,22 @@ def export_MTEXT():
         size = 12                       # default fontsize in px

         if vals[groups['40']]:

             size = scale*vals[groups['40']][0]

-        attribs = {'x': '%f' % x, 'y': '%f' % y, 'style': 'font-size: %dpx' % size}

+        attribs = {'x': '%f' % x, 'y': '%f' % y, 'style': 'font-size: %dpx; stroke: %s' % (size, color)}

         angle = 0                       # default angle in degrees

         if vals[groups['50']]:

             angle = vals[groups['50']][0]

             attribs.update({'transform': 'rotate (%f %f %f)' % (-angle, x, y)})

+        attribs.update({'sodipodi:linespacing': '125%'})

         node = inkex.etree.SubElement(doc.getroot(), 'text', attribs)

-        node.text = vals[groups['1']][0]

+        text = vals[groups['1']][0]

+        found = text.find('\P')         # new line

+        while found > -1:

+            tspan = inkex.etree.SubElement(node , 'tspan', {'sodipodi:role': 'line'})

+            tspan.text = text[:found]

+            text = text[(found+2):]

+            found = text.find('\P')

+        tspan = inkex.etree.SubElement(node , 'tspan', {'sodipodi:role': 'line'})

+        tspan.text = text

 

 def export_POINT():

     # mandatory group codes : (10, 20) (x, y)

@@ -47,7 +58,7 @@ def export_POINT():
 def export_LINE():

     # mandatory group codes : (10, 11, 20, 21) (x1, x2, y1, y2)

     if vals[groups['10']] and vals[groups['11']] and vals[groups['20']] and vals[groups['21']]:

-        path = 'M %f,%f %f,%f' % (vals[groups['10']][0], vals[groups['20']][0], scale*vals[groups['11']][0], height - scale*vals[groups['21']][0])

+        path = 'M %f,%f %f,%f' % (vals[groups['10']][0], vals[groups['20']][0], scale*(vals[groups['11']][0] - xmin), - scale*(vals[groups['21']][0] - ymax))

         attribs = {'d': path, 'style': style}

         inkex.etree.SubElement(doc.getroot(), 'path', attribs)

 

@@ -151,46 +162,66 @@ def generate_ellipse(xc, yc, xm, ym, w, a1, a2):
 def get_line():

     return (stream.readline().strip(), stream.readline().strip())

 

+def get_group(group):

+    line = get_line()

+    if line[0] == group:

+        return float(line[1])

+    else:

+        return 0.0

+

 #   define DXF Entities and specify which Group Codes to monitor

 

-entities = {'MTEXT': export_MTEXT, 'POINT': export_POINT, 'LINE': export_LINE, 'SPLINE': export_SPLINE, 'CIRCLE': export_CIRCLE, 'ARC': export_ARC, 'ELLIPSE': export_ELLIPSE, 'LEADER': export_LEADER, 'LWPOLYLINE': export_LWPOLYLINE, 'ENDSEC': ''}

-groups = {'1': 0, '10': 1, '11': 2, '20': 3, '21': 4, '40': 5, '41': 6, '42': 7, '50': 8, '51': 9, '70': 10, '370': 11}

-scale = 90.0/25.4                                   # convert from mm to pixels

-height = 90.0*11.0                                  # 11 inch height in pixels

-entity = ''

+entities = {'MTEXT': export_MTEXT, 'TEXT': export_MTEXT, 'POINT': export_POINT, 'LINE': export_LINE, 'SPLINE': export_SPLINE, 'CIRCLE': export_CIRCLE, 'ARC': export_ARC, 'ELLIPSE': export_ELLIPSE, 'LEADER': export_LEADER, 'LWPOLYLINE': export_LWPOLYLINE, 'ENDSEC': ''}

+groups = {'1': 0, '10': 1, '11': 2, '20': 3, '21': 4, '40': 5, '41': 6, '42': 7, '50': 8, '51': 9, '62': 10, '70': 11, '370': 12}

+colors = {1: '#FF0000', 2: '#FFFF00', 3: '#00FF00', 4: '#00FFFF', 5: '#0000FF', 6: '#FF00FF', 7: '#FFFFFF', 8: '#414141', 9: '#808080'}

 

-doc = inkex.etree.parse(StringIO('<svg></svg>'))

+doc = inkex.etree.parse(StringIO('<svg xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"></svg>'))

 stream = open(inkex.sys.argv[1], 'r')

+xmax = xmin = 0.0

+ymax = 297.0                                        # default A4 height in mm

 line = get_line()

 while line[0] and line[1] != 'ENTITIES':

     line = get_line()

-

+    if line[1] == '$EXTMIN':

+        xmin = get_group('10')

+    if line[1] == '$EXTMAX':

+        xmax = get_group('10')

+        ymax = get_group('20')

+

+scale = 90.0/25.4                                   # default convert from mm to pixels

+if xmax > xmin:

+    scale *= 210.0/(xmax - xmin)                    # scale to A4 width

+entity = ''

 while line[0] and line[1] != 'ENDSEC':

     line = get_line()

     if entity and groups.has_key(line[0]):

         seqs.append(line[0])                        # list of group codes

         if line[0] == '1':                          # text value

             val = line[1].replace('\~', ' ')

-        elif line[0] == '70':                       # unscaled integer value

+        elif line[0] == '62' or line[0] == '70':    # unscaled integer value

             val = int(line[1])

         elif line[0] == '10':                       # scaled float x value

-            val = scale*float(line[1])

+            val = scale*(float(line[1]) - xmin)

         elif line[0] == '20':                       # scaled float y value

-            val = height - scale*float(line[1])

+            val = - scale*(float(line[1]) - ymax)

         else:                                       # unscaled float value

             val = float(line[1])

         vals[groups[line[0]]].append(val)

     elif entities.has_key(line[1]):

         if entities.has_key(entity):

-            style = simplestyle.formatStyle({'stroke': '#000000', 'fill': 'none'})

+            color = '#000000'                       # default color

+            if vals[groups['62']]:                  # Common Color Number

+                if colors.has_key(vals[groups['62']][0]):

+                    color = colors[vals[groups['62']][0]]

+            style = simplestyle.formatStyle({'stroke': '%s' % color, 'fill': 'none'})

             w = 0.5                                 # default lineweight for POINT

             if vals[groups['370']]:                 # Common Lineweight

                 if vals[groups['370']][0] > 0:

                     w = scale*vals[groups['370']][0]/100.0

-                    style = simplestyle.formatStyle({'stroke': '#000000', 'fill': 'none', 'stroke-width': '%.1f' % w})

+                    style = simplestyle.formatStyle({'stroke': '%s' % color, 'fill': 'none', 'stroke-width': '%.1f' % w})

             entities[entity]()

         entity = line[1]

-        vals = [[],[],[],[],[],[],[],[],[],[],[],[]]

+        vals = [[],[],[],[],[],[],[],[],[],[],[],[],[]]

         seqs = []

 

 doc.write(inkex.sys.stdout)