1 /****************************************************************************/
2 // Eclipse SUMO, Simulation of Urban MObility; see https://eclipse.org/sumo
3 // Copyright (C) 2001-2019 German Aerospace Center (DLR) and others.
4 // This program and the accompanying materials
5 // are made available under the terms of the Eclipse Public License v2.0
6 // which accompanies this distribution, and is available at
7 // http://www.eclipse.org/legal/epl-v20.html
8 // SPDX-License-Identifier: EPL-2.0
9 /****************************************************************************/
10 /// @file GeomConvHelper.cpp
11 /// @author Daniel Krajzewicz
12 /// @author Jakob Erdmann
13 /// @author Michael Behrisch
14 /// @date Sept 2003
15 /// @version $Id$
16 ///
17 // Some helping functions for geometry parsing
18 /****************************************************************************/
19
20
21 // ===========================================================================
22 // included modules
23 // ===========================================================================
24 #include <config.h>
25
26 #include <string>
27 #include <sstream>
28 #include <utils/geom/PositionVector.h>
29 #include <utils/common/MsgHandler.h>
30 #include <utils/common/StringTokenizer.h>
31 #include <utils/common/StringUtils.h>
32 #include "GeomConvHelper.h"
33
34
35 // ===========================================================================
36 // method definitions
37 // ===========================================================================
38 PositionVector
parseShapeReporting(const std::string & shpdef,const std::string & objecttype,const char * objectid,bool & ok,bool allowEmpty,bool report)39 GeomConvHelper::parseShapeReporting(const std::string& shpdef, const std::string& objecttype,
40 const char* objectid, bool& ok, bool allowEmpty, bool report) {
41 if (shpdef == "") {
42 if (!allowEmpty) {
43 emitError(report, "Shape", objecttype, objectid, "the shape is empty");
44 ok = false;
45 }
46 return PositionVector();
47 }
48 StringTokenizer st(shpdef, " ");
49 PositionVector shape;
50 while (st.hasNext()) {
51 StringTokenizer pos(st.next(), ",");
52 if (pos.size() != 2 && pos.size() != 3) {
53 emitError(report, "Shape", objecttype, objectid, "the position is neither x,y nor x,y,z");
54 ok = false;
55 return PositionVector();
56 }
57 try {
58 double x = StringUtils::toDouble(pos.next());
59 double y = StringUtils::toDouble(pos.next());
60 if (pos.size() == 2) {
61 shape.push_back(Position(x, y));
62 } else {
63 double z = StringUtils::toDouble(pos.next());
64 shape.push_back(Position(x, y, z));
65 }
66 } catch (NumberFormatException&) {
67 emitError(report, "Shape", objecttype, objectid, "not numeric position entry");
68 ok = false;
69 return PositionVector();
70 } catch (EmptyData&) {
71 emitError(report, "Shape", objecttype, objectid, "empty position entry");
72 ok = false;
73 return PositionVector();
74 }
75 }
76 return shape;
77 }
78
79
80 Boundary
parseBoundaryReporting(const std::string & def,const std::string & objecttype,const char * objectid,bool & ok,bool report)81 GeomConvHelper::parseBoundaryReporting(const std::string& def, const std::string& objecttype,
82 const char* objectid, bool& ok, bool report) {
83 StringTokenizer st(def, ",");
84 if (st.size() != 4) {
85 emitError(report, "Bounding box", objecttype, objectid, "mismatching entry number");
86 ok = false;
87 return Boundary();
88 }
89 try {
90 double xmin = StringUtils::toDouble(st.next());
91 double ymin = StringUtils::toDouble(st.next());
92 double xmax = StringUtils::toDouble(st.next());
93 double ymax = StringUtils::toDouble(st.next());
94 return Boundary(xmin, ymin, xmax, ymax);
95 } catch (NumberFormatException&) {
96 emitError(report, "Shape", objecttype, objectid, "not numeric entry");
97 } catch (EmptyData&) {
98 emitError(report, "Shape", objecttype, objectid, "empty entry");
99 }
100 ok = false;
101 return Boundary();
102 }
103
104
105 void
emitError(bool report,const std::string & what,const std::string & objecttype,const char * objectid,const std::string & desc)106 GeomConvHelper::emitError(bool report, const std::string& what, const std::string& objecttype,
107 const char* objectid, const std::string& desc) {
108 if (!report) {
109 return;
110 }
111 std::ostringstream oss;
112 oss << what << " of ";
113 if (objectid == nullptr) {
114 oss << "a(n) ";
115 }
116 oss << objecttype;
117 if (objectid != nullptr) {
118 oss << " '" << objectid << "'";
119 }
120 oss << " is broken: " << desc << ".";
121 WRITE_ERROR(oss.str());
122 }
123
124
125
126 /****************************************************************************/
127
128