Eclipse SUMO - Simulation of Urban MObility
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PCNetProjectionLoader.cpp
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1/****************************************************************************/
2// Eclipse SUMO, Simulation of Urban MObility; see https://eclipse.dev/sumo
3// Copyright (C) 2001-2024 German Aerospace Center (DLR) and others.
4// This program and the accompanying materials are made available under the
5// terms of the Eclipse Public License 2.0 which is available at
6// https://www.eclipse.org/legal/epl-2.0/
7// This Source Code may also be made available under the following Secondary
8// Licenses when the conditions for such availability set forth in the Eclipse
9// Public License 2.0 are satisfied: GNU General Public License, version 2
10// or later which is available at
11// https://www.gnu.org/licenses/old-licenses/gpl-2.0-standalone.html
12// SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-or-later
13/****************************************************************************/
20// A reader for a SUMO network's projection description
21/****************************************************************************/
22#include <config.h>
23
24#include <string>
25#include <map>
26#include <fstream>
35#include <utils/geom/Boundary.h>
36#include <utils/geom/Position.h>
38#include <utils/xml/XMLSubSys.h>
44
45
46// ===========================================================================
47// method definitions
48// ===========================================================================
49// ---------------------------------------------------------------------------
50// static interface
51// ---------------------------------------------------------------------------
52void
53PCNetProjectionLoader::load(const std::string& file, double scale) {
54 if (!FileHelpers::isReadable(file)) {
55 throw ProcessError(TLF("Could not open net-file '%'.", file));
56 }
57 // build handler and parser
58 PCNetProjectionLoader handler(scale);
59 handler.setFileName(file);
60 SUMOSAXReader* parser = XMLSubSys::getSAXReader(handler, true);
61 const long before = PROGRESS_BEGIN_TIME_MESSAGE("Parsing network projection from '" + file + "'");
62 if (!parser->parseFirst(file)) {
63 delete parser;
64 throw ProcessError(TLF("Can not read XML-file '%'.", handler.getFileName()));
65 }
66 // parse
67 while (parser->parseNext() && !handler.hasReadAll());
68 // clean up
70 if (!handler.hasReadAll()) {
71 throw ProcessError(TL("Could not find projection parameter in net."));
72 }
73 delete parser;
74}
75
76
77// ---------------------------------------------------------------------------
78// handler methods
79// ---------------------------------------------------------------------------
81 SUMOSAXHandler("sumo-network"),
82 myFoundLocation(false),
83 myScale(scale) {
84}
85
86
88
89
90void
92 const SUMOSAXAttributes& attrs) {
93 if (element != SUMO_TAG_LOCATION) {
94 return;
95 }
96 // @todo refactor parsing of location since its duplicated in NLHandler and PCNetProjectionLoader
97 myFoundLocation = true;
99 Boundary convBoundary = attrs.get<Boundary>(SUMO_ATTR_CONV_BOUNDARY, nullptr, myFoundLocation);
100 Boundary origBoundary = attrs.get<Boundary>(SUMO_ATTR_ORIG_BOUNDARY, nullptr, myFoundLocation);
101 std::string proj = attrs.get<std::string>(SUMO_ATTR_ORIG_PROJ, nullptr, myFoundLocation);
102 if (myFoundLocation) {
104 Position networkOffset = s[0] + Position(oc.getFloat("offset.x"), oc.getFloat("offset.y"));
105 GeoConvHelper::init(proj, networkOffset, origBoundary, convBoundary, myScale);
106 }
107}
108
109
110bool
114
115
116/****************************************************************************/
#define PROGRESS_BEGIN_TIME_MESSAGE(msg)
Definition MsgHandler.h:301
#define TL(string)
Definition MsgHandler.h:315
#define PROGRESS_TIME_MESSAGE(before)
Definition MsgHandler.h:302
#define TLF(string,...)
Definition MsgHandler.h:317
@ SUMO_TAG_LOCATION
@ SUMO_ATTR_CONV_BOUNDARY
@ SUMO_ATTR_NET_OFFSET
@ SUMO_ATTR_ORIG_BOUNDARY
@ SUMO_ATTR_ORIG_PROJ
A class that stores a 2D geometrical boundary.
Definition Boundary.h:39
static bool isReadable(std::string path)
Checks whether the given file is readable.
void setFileName(const std::string &name)
Sets the current file name.
const std::string & getFileName() const
returns the current file name
static bool init(OptionsCont &oc)
Initialises the processing and the final instance using the given options.
A storage for options typed value containers)
Definition OptionsCont.h:89
double getFloat(const std::string &name) const
Returns the double-value of the named option (only for Option_Float)
static OptionsCont & getOptions()
Retrieves the options.
A reader for a SUMO network's projection description.
virtual void myStartElement(int element, const SUMOSAXAttributes &attrs)
Called on the opening of a tag;.
bool hasReadAll() const
Returns whether all needed values were read.
double myScale
scaling of input coordinates (not given in the location element)
PCNetProjectionLoader(double scale)
Constructor.
bool myFoundLocation
Information whether the parameter was read.
static void load(const std::string &file, double scale)
Loads network projection if wished.
A point in 2D or 3D with translation and scaling methods.
Definition Position.h:37
A list of positions.
Encapsulated SAX-Attributes.
T get(int attr, const char *objectid, bool &ok, bool report=true) const
Tries to read given attribute assuming it is an int.
SAX-handler base for SUMO-files.
SAX-reader encapsulation containing binary reader.
bool parseFirst(std::string systemID)
Start parsing the given file using parseFirst of myXMLReader.
bool parseNext()
Continue a progressive parse started by parseFirst.
static SUMOSAXReader * getSAXReader(SUMOSAXHandler &handler, const bool isNet=false, const bool isRoute=false)
Builds a reader and assigns the handler to it.