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March 2, 2021 16:15
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#!/usr/bin/env python3 | |
import sys, argparse, ezdxf, os | |
from xml.dom import minidom | |
from pprint import pprint | |
p = argparse.ArgumentParser(description='dxf2gml') | |
p.add_argument('-i', '--input', action='store', help='input filename (DXF)', required = True) | |
p.add_argument('-o', '--output', action='store', help='output filename (GML)', required = True) | |
p.add_argument('-l', '--layers', action='store', help='coma separatted list of layers') | |
p.add_argument('-t', '--type', action='store', help='coma separatted list of object types [POINT, LWPOLYLINE]') | |
r = p.parse_args() | |
layers = None | |
types = "POINT,LINE,LWPOLYLINE".split(',') | |
if r.layers: | |
layers = r.layers.split(",") | |
if r.type: | |
types = r.type.split(",") | |
if "POINT" in types: | |
print (types) | |
exit | |
xml = minidom.Document() | |
wfs = xml.createElement('wfs:FeatureCollection') | |
wfs.setAttribute("xmlns:wfs", "http://www.opengis.net/wfs") | |
wfs.setAttribute("xsi:schemaLocation", "http://www.opengis.net/gml http://schemas.opengis.net/gml/2.1.2/feature.xsd") | |
wfs.setAttribute("xmlns:xsi","http://www.w3.org/2001/XMLSchema-instance") | |
doc = ezdxf.readfile(r.input) | |
msp = doc.modelspace() | |
def xyz2str(c): | |
x, y, z = c; | |
if z != 0: | |
return '{:.2f},{:.2f},{:.2f}'.format(x, y, z) | |
else: | |
return '{:.2f},{:.2f}'.format(x, y) | |
def createCoordinates(text): | |
co = xml.createElement("gml:coordinates") | |
co.setAttribute("decimal", ".") | |
co.setAttribute("cs", ",") | |
co.setAttribute("ts", " ") | |
co.appendChild(xml.createTextNode(text)) | |
return co | |
for e in msp: | |
if not layers or e.dxf.layer in layers: | |
coords="" | |
if e.dxftype() == "POINT" and "POINT" in types: | |
co = createCoordinates(xyz2str(e.dxf.location)) | |
geometry = xml.createElement('gml:Point') | |
geometry.setAttribute("srsName", "EPSG:3765") | |
geometry.appendChild(co) | |
elif e.dxftype() == "LINE" and "LINE" in types: | |
coord = xyz2str(e.dxf.start) + " " + xyz2str(e.dxf.end) | |
co = createCoordinates(coord) | |
geometry = xml.createElement('gml:LineString') | |
geometry.setAttribute("srsName", "EPSG:3765") | |
geometry.appendChild(co) | |
elif e.dxftype() == "LWPOLYLINE" and "LWPOLYLINE" in types: | |
for x, y in e.vertices(): | |
coords += '{:.2f},{:.2f} '.format(x, y) | |
co = createCoordinates(coords) | |
lr = xml.createElement('gml:LinearRing') | |
lr.appendChild(co) | |
outb = xml.createElement('gml:outerBoundaryIs') | |
outb.appendChild(lr) | |
geometry = xml.createElement('gml:Polygon') | |
geometry.setAttribute("srsName", "EPSG:3765") | |
geometry.appendChild(outb) | |
else: | |
print("Skipping {} in layer '{}' ...".format(e.dxftype(), e.dxf.layer)) | |
continue | |
feature = xml.createElement('feature:geometry') | |
feature.appendChild(geometry) | |
features = xml.createElement('feature:features') | |
features.appendChild(feature) | |
features.setAttribute("xmlns:feature", "http://mapserver.gis.umn.edu/mapserver") | |
gml_fm = xml.createElement('gml:featureMember') | |
gml_fm.appendChild (features) | |
gml_fm.setAttribute("xmlns:gml", "http://www.opengis.net/gml") | |
wfs.appendChild (gml_fm) | |
print(wfs.toprettyxml(indent=" "), file=open(r.output, "w")) | |
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