comandline parser

svg2gcode.py

@@ -4,14 +4,14 @@ from __future__ import absolute_import
 from __future__ import print_function
 import sys
 import os
-import getopt
+import argparse
 import xml.etree.ElementTree as ET
 import shapes as shapes_pkg
 from shapes import point_generator
 from config import *
 
 debug = True
-example_usage = "-i test_data/Test_H.svg -o test_data/test.gcode"
+example_usage = "-i test_data/Test_H.svg -o test_data/test.gcode -fr 300 -mr 1200 -p 1 -lp 20%"
 svg_shapes = set(['rect', 'circle', 'ellipse', 'line', 'polyline', 'polygon', 'path'])
 gcode_file_path = " "
 
@@ -26,24 +26,25 @@ def close_on_failure():
     os.remove(gcode_file_path)
     sys.exit(1)
 
-def print_help():
+def parse_arguments():
-    print("Usage:")
+    parser = argparse.ArgumentParser(description='Generate gcode from vector graphics.')
-    print(os.path.basename(__file__) + " -i <svg file> -o <gcode file>")
-    print("Example:")
-    print(os.path.basename(__file__) + " " + example_usage)
-    sys.exit(1)
 
-def parse_arguments(argv):
+    parser.add_argument("-i", "--input", dest='inputfile', metavar='image.svg', help="path to vector graphic file", required=True)
-    try:
+    parser.add_argument("-o", "--output", dest='outputfile', metavar='data.gcode', help="path to file for generated gcode", required=True)
-        opts, args = getopt.getopt(argv,"hi:o:",["ifile=","ofile="])
+
-    except getopt.GetoptError:
+    parser.add_argument("-fr", "--feedrate", dest='feedrate', metavar=300, default=300, help="rate while laser is on", required=False)
-        print_help()
+    parser.add_argument("-mr", "--moverate", dest='moverate', metavar=1200, default=1200, help="rate while laser is off", required=False)
-    for opt, arg in opts:
+
-        if opt in ("-i", "--ifile"):
+    parser.add_argument("-p", "--passes", dest='passes', metavar=1, default=1, help="number of passes (for deeper cutting)", required=False)
-            inputfile = arg
+    parser.add_argument("-lp", "--laserpower", dest='laserpower', metavar="0%", default="0%", help="laser power in %%", required=False)
-        elif opt in ("-o", "--ofile"):
+
-            outputfile = arg
+    parser.add_argument("-bx", "--bedsizex", dest='bedsizex', default="376", help="x size of bed in mm", required=False)
-    return (inputfile, outputfile)
+    parser.add_argument("-by", "--bedsizey", dest='bedsizey', default="315", help="y size of bed in mm", required=False)
+
+    parser.add_argument("-s", "--smoothness", dest='smoothness', metavar=0.2, default=0.2, help="Used to control the smoothness/sharpness of the curves.\nSmaller the value greater the sharpness.\nMake sure the value is greater than 0.1", required=False)
+
+    args = parser.parse_args()
+    return [args.inputfile, args.outputfile, int(args.feedrate), int(args.moverate), int(args.passes), ((float(args.laserpower.split("%")[0])/100.0)), int(args.bedsizex), int(args.bedsizey), float(args.smoothness) ]
 
 def read_input_file(svg_file_path):
     try:
@@ -94,7 +95,7 @@ def generate_gcode(svg_file_root_tree, gcode_file):
                         gcode_write(gcode_file, "G1 X%0.001f Y%0.001f\n" % (x, y))
                         num_points += 1
                         if (num_points == 1):
-                            gcode_write(gcode_file, "M3 I S150 ;start laser\n")
+                            gcode_write(gcode_file, "M3 I S15 ;start laser\n")
                     elif (debug):
                         print("\n; Coordinates out of range:", "G1 X%0.01f Y%0.01f" % (x, y))
                         print("; Raw:", str(x), str(y), "\nScaled:", str(x), str(y), "\n")
@@ -108,9 +109,19 @@ def generate_gcode(svg_file_root_tree, gcode_file):
 
 if __name__ == "__main__":
     sys.setrecursionlimit(20000) #needed for svg's with more indepented paths
-    if(len(sys.argv) != (len(example_usage.split())+1)):
+
-        print_help()
+    svg_file_path, gcode_file_path, feedrate, moverate, passes, laserpower, bedsizex, bedsizey, smoothness = parse_arguments()
-    svg_file_path, gcode_file_path = parse_arguments(sys.argv[1:])
+
+    print("inputfile: " + str(svg_file_path))
+    print("outputfile: " + str(gcode_file_path))
+    print("feedrate: " + str(feedrate))
+    print("moverate: " + str(moverate))
+    print("passes: " + str(passes))
+    print("laserpower: " + str(laserpower))
+    print("bedsizex: " + str(bedsizex))
+    print("bedsizey: " + str(bedsizey))
+    print("smoothness: " + str(smoothness)) 
+
     try:
         with open(gcode_file_path, 'w') as gcode_file:
             generate_gcode(read_input_file(svg_file_path),gcode_file)

test_data/arc_compare.gcode

@@ -0,0 +1,45 @@
+G90 ;Absolute programming
+G21 ;Programming in millimeters (mm)
+M5  ;Disable laser
+; == Start of circle ==
+G00 X5 Y5
+M3 I S150 ;start laser
+G02 X5 Y5 I5 J0
+M5 ;stop laser
+; == End of circle ==
+G1 X0.0 Y0.0; Display printbed
+
+; == Start of circle ==
+G1 X0.4 Y5.0
+M3 I S150 ;start laser
+G1 X0.4 Y5.4
+G1 X0.7 Y6.6
+G1 X1.2 Y7.6
+G1 X2.0 Y8.5
+G1 X3.1 Y9.2
+G1 X4.2 Y9.5
+G1 X5.4 Y9.6
+G1 X6.6 Y9.3
+G1 X7.6 Y8.8
+G1 X8.5 Y8.0
+G1 X9.2 Y7.0
+G1 X9.5 Y5.8
+G1 X9.6 Y4.6
+G1 X9.3 Y3.4
+G1 X8.8 Y2.4
+G1 X8.0 Y1.5
+G1 X6.9 Y0.8
+G1 X5.8 Y0.5
+G1 X4.6 Y0.4
+G1 X3.4 Y0.7
+G1 X2.4 Y1.2
+G1 X1.5 Y2.0
+G1 X0.8 Y3.0
+G1 X0.5 Y4.2
+G1 X0.4 Y5.0
+M5 ;stop laser
+; == End of circle ==
+
+M02 ;End of program
+
+ 

test_data/circle_10mm.svg

@@ -0,0 +1,74 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   width="10mm"
+   height="10mm"
+   viewBox="0 0 10 10"
+   version="1.1"
+   id="svg5"
+   inkscape:version="1.2 (dc2aedaf03, 2022-05-15)"
+   sodipodi:docname="circle_10mm.svg"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:xlink="http://www.w3.org/1999/xlink"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg">
+  <sodipodi:namedview
+     id="namedview7"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:showpageshadow="2"
+     inkscape:pageopacity="0.0"
+     inkscape:pagecheckerboard="0"
+     inkscape:deskcolor="#d1d1d1"
+     inkscape:document-units="mm"
+     showgrid="true"
+     inkscape:zoom="14.561186"
+     inkscape:cx="19.12619"
+     inkscape:cy="21.358151"
+     inkscape:window-width="1920"
+     inkscape:window-height="1011"
+     inkscape:window-x="1680"
+     inkscape:window-y="0"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="layer1">
+    <inkscape:grid
+       type="xygrid"
+       id="grid168" />
+  </sodipodi:namedview>
+  <defs
+     id="defs2">
+    <linearGradient
+       id="linearGradient964"
+       inkscape:swatch="solid">
+      <stop
+         style="stop-color:#000000;stop-opacity:1;"
+         offset="0"
+         id="stop962" />
+    </linearGradient>
+    <linearGradient
+       inkscape:collect="always"
+       xlink:href="#linearGradient964"
+       id="linearGradient966"
+       x1="6.1921271"
+       y1="4.5499105"
+       x2="7.5929643"
+       y2="4.5499105"
+       gradientUnits="userSpaceOnUse"
+       gradientTransform="matrix(6.5488501,0,0,10.421456,-40.138249,-42.416693)" />
+  </defs>
+  <g
+     inkscape:label="Ebene 1"
+     inkscape:groupmode="layer"
+     id="layer1">
+    <circle
+       style="fill:none;stroke:url(#linearGradient966);stroke-width:0.826127;stroke-dasharray:none"
+       id="path166"
+       cx="5"
+       cy="5"
+       inkscape:highlight-color="#b7ee3b"
+       r="4.5869365" />
+  </g>
+</svg>

test_data/circle_10mm_gen.gcode

@@ -0,0 +1,36 @@
+G90 ;Absolute programming
+G21 ;Programming in millimeters (mm)
+M5  ;Disable laser
+G01 F200.0
+; == Start of circle ==
+G1 X0.4 Y5.0
+M3 I S150 ;start laser
+G1 X0.4 Y5.4
+G1 X0.7 Y6.6
+G1 X1.2 Y7.6
+G1 X2.0 Y8.5
+G1 X3.1 Y9.2
+G1 X4.2 Y9.5
+G1 X5.4 Y9.6
+G1 X6.6 Y9.3
+G1 X7.6 Y8.8
+G1 X8.5 Y8.0
+G1 X9.2 Y7.0
+G1 X9.5 Y5.8
+G1 X9.6 Y4.6
+G1 X9.3 Y3.4
+G1 X8.8 Y2.4
+G1 X8.0 Y1.5
+G1 X6.9 Y0.8
+G1 X5.8 Y0.5
+G1 X4.6 Y0.4
+G1 X3.4 Y0.7
+G1 X2.4 Y1.2
+G1 X1.5 Y2.0
+G1 X0.8 Y3.0
+G1 X0.5 Y4.2
+G1 X0.4 Y5.0
+M5 ;stop laser
+; == End of circle ==
+G1 X0.0 Y0.0; Display printbed
+M02 ;End of program

test_data/circle_10mm_man.gcode

@@ -0,0 +1,35 @@
+G90 ;Absolute programming
+G21 ;Programming in millimeters (mm)
+M5  ;Disable laser
+; == Start of circle ==
+G1 X0.4 Y5.0
+M3 I S150 ;start laser
+G1 X0.4 Y5.4
+G1 X0.7 Y6.6
+G1 X1.2 Y7.6
+G1 X2.0 Y8.5
+G1 X3.1 Y9.2
+G1 X4.2 Y9.5
+G1 X5.4 Y9.6
+G1 X6.6 Y9.3
+G1 X7.6 Y8.8
+G1 X8.5 Y8.0
+G1 X9.2 Y7.0
+G1 X9.5 Y5.8
+G1 X9.6 Y4.6
+G1 X9.3 Y3.4
+G1 X8.8 Y2.4
+G1 X8.0 Y1.5
+G1 X6.9 Y0.8
+G1 X5.8 Y0.5
+G1 X4.6 Y0.4
+G1 X3.4 Y0.7
+G1 X2.4 Y1.2
+G1 X1.5 Y2.0
+G1 X0.8 Y3.0
+G1 X0.5 Y4.2
+G1 X0.4 Y5.0
+M5 ;stop laser
+; == End of circle ==
+G1 X0.0 Y0.0; Display printbed
+M02 ;End of program

test_data/circle_rect.svg

@@ -0,0 +1,103 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   width="50mm"
+   height="50mm"
+   viewBox="0 0 50 50"
+   version="1.1"
+   id="svg5"
+   inkscape:version="1.2 (dc2aedaf03, 2022-05-15)"
+   sodipodi:docname="circle_rect.svg"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:xlink="http://www.w3.org/1999/xlink"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg">
+  <sodipodi:namedview
+     id="namedview7"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:showpageshadow="2"
+     inkscape:pageopacity="0.0"
+     inkscape:pagecheckerboard="0"
+     inkscape:deskcolor="#d1d1d1"
+     inkscape:document-units="mm"
+     showgrid="false"
+     inkscape:zoom="2.4109002"
+     inkscape:cx="67.609602"
+     inkscape:cy="119.87224"
+     inkscape:window-width="1920"
+     inkscape:window-height="1011"
+     inkscape:window-x="1680"
+     inkscape:window-y="0"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="layer1" />
+  <defs
+     id="defs2">
+    <linearGradient
+       id="linearGradient1693"
+       inkscape:swatch="solid">
+      <stop
+         style="stop-color:#000000;stop-opacity:1;"
+         offset="0"
+         id="stop1691" />
+    </linearGradient>
+    <linearGradient
+       id="linearGradient1687"
+       inkscape:swatch="solid">
+      <stop
+         style="stop-color:#000000;stop-opacity:1;"
+         offset="0"
+         id="stop1685" />
+    </linearGradient>
+    <linearGradient
+       id="linearGradient1681"
+       inkscape:swatch="solid">
+      <stop
+         style="stop-color:#000000;stop-opacity:1;"
+         offset="0"
+         id="stop1679" />
+    </linearGradient>
+    <linearGradient
+       inkscape:collect="always"
+       xlink:href="#linearGradient1681"
+       id="linearGradient1683"
+       x1="19.42469"
+       y1="13.817454"
+       x2="33.230409"
+       y2="13.817454"
+       gradientUnits="userSpaceOnUse"
+       gradientTransform="matrix(0.71925141,0,0,0.68550157,16.06387,25.528111)" />
+    <linearGradient
+       inkscape:collect="always"
+       xlink:href="#linearGradient1693"
+       id="linearGradient1695"
+       x1="15.992893"
+       y1="32.574879"
+       x2="29.680855"
+       y2="32.574879"
+       gradientUnits="userSpaceOnUse"
+       gradientTransform="matrix(0.72529736,0,0,0.71786491,-6.5635245,-13.384362)" />
+  </defs>
+  <g
+     inkscape:label="Ebene 1"
+     inkscape:groupmode="layer"
+     id="layer1">
+    <ellipse
+       style="fill:none;fill-opacity:1;stroke:url(#linearGradient1695);stroke-width:0.0721572;stroke-opacity:1"
+       id="path1465"
+       cx="10"
+       cy="10"
+       rx="4.9639211"
+       ry="4.9639215" />
+    <rect
+       style="fill:none;fill-opacity:1;stroke:url(#linearGradient1683);stroke-width:0.0702174"
+       id="rect1519"
+       width="9.9297819"
+       height="9.9297829"
+       x="30.035109"
+       y="30.035109" />
+  </g>
+</svg>

test_data/path.svg

@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   width="50mm"
+   height="50mm"
+   viewBox="0 0 50 50"
+   version="1.1"
+   id="svg3908"
+   inkscape:version="1.2 (dc2aedaf03, 2022-05-15)"
+   sodipodi:docname="polygon.svg"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg">
+  <sodipodi:namedview
+     id="namedview3910"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:showpageshadow="2"
+     inkscape:pageopacity="0.0"
+     inkscape:pagecheckerboard="0"
+     inkscape:deskcolor="#d1d1d1"
+     inkscape:document-units="mm"
+     showgrid="false"
+     inkscape:zoom="3.0896281"
+     inkscape:cx="20.06714"
+     inkscape:cy="113.92957"
+     inkscape:window-width="1920"
+     inkscape:window-height="1011"
+     inkscape:window-x="1680"
+     inkscape:window-y="0"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="layer1" />
+  <defs
+     id="defs3905" />
+  <g
+     inkscape:label="Ebene 1"
+     inkscape:groupmode="layer"
+     id="layer1">
+    <path
+       style="fill:none;stroke:#000000;stroke-width:0.3614px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
+       d="M 8.567566,11.725796 29.426043,9.6990304 41.526735,22.101801 35.291377,35.332061 c 0,0 -1.200062,11.342766 -14.752929,2.011317 C 6.9855816,28.011925 9.5682504,22.977429 9.5682504,22.977429 Z"
+       id="path7034" />
+  </g>
+</svg>

test_data/test.gcode

@@ -1,15 +1,29 @@
 G90 ;Absolute programming
 G21 ;Programming in millimeters (mm)
 M5  ;Disable laser
-; == Start of rect ==
+; == Start of path ==
-G1 X0.1 Y0.1
+G1 X8.6 Y11.7
-M3 I S150 ;start laser
+M3 I S15 ;start laser
-G1 X0.1 Y0.1
+G1 X8.6 Y11.7
-G1 X9.9 Y0.1
+G1 X29.4 Y9.7
-G1 X9.9 Y9.9
+G1 X41.5 Y22.1
-G1 X0.1 Y9.9
+G1 X35.3 Y35.3
-G1 X0.1 Y0.1
+G1 X34.7 Y37.4
+G1 X33.9 Y38.9
+G1 X32.5 Y40.3
+G1 X30.4 Y41.0
+G1 X27.6 Y40.8
+G1 X23.7 Y39.4
+G1 X18.8 Y36.2
+G1 X14.9 Y33.0
+G1 X12.3 Y30.3
+G1 X10.6 Y27.9
+G1 X9.7 Y26.1
+G1 X9.4 Y24.6
+G1 X9.4 Y23.3
+G1 X9.6 Y23.0
+G1 X8.6 Y11.7
 M5 ;stop laser
-; == End of rect ==
+; == End of path ==
 G1 X0.0 Y0.0; Display printbed
 M02 ;End of program