dxf⽂件解析库libdxf初探
之前⽂章调研过dxflib和libdxfrw，查资料发现还有⼀个类似的库libdxf，本⽂初探⼀下这个库。
官⽅说明：
libDXF is a library (written in C) with DXF related functions.
The Drawing eXchange Format (DXF) is a defacto industry standard for the exchange of drawing files between various Computer Aided Drafting programs, designed by Autodesk(TM).
Currently this project has a "Work in progress" status.
The code base is still incomplete and is not debugged to an acceptable level.
You are always welcome to help with patches or bug reports :-)
For more information see the libDXF repository on or the project page on .
For statistics see .
尝试Windows平台使⽤
编写
cmake_minimum_required(VERSION 3.8.0)
project(libdxf)
# Find source files
file(GLOB SOURCES src/*.c)
# Include header files
include_directories(src)
# Create shared library
add_library(${PROJECT_NAME} SHARED ${SOURCES})
# Install library
install(TARGETS ${PROJECT_NAME} DESTINATION lib/${PROJECT_NAME})
# Install library headers
file(GLOB HEADERS src/*.h)
install(FILES ${HEADERS} DESTINATION include/${PROJECT_NAME})
最终⽣成VS2017⼯程，打开进⾏构建。
使⽤Qt进⾏编译：libdxf.pro
1 #-------------------------------------------------
2 #
3 # Project created by QtCreator 2020-02-19T09:52:44
4 #
5 #-------------------------------------------------
6
7 QT -= core gui
8
9 TARGET = libdxf
10 TEMPLATE = lib
11 CONFIG += staticlib
12
13 # The following define makes your compiler emit warnings if you use
14 # any feature of Qt which has been marked as deprecated (the exact warnings
15 # depend on your compiler). Please consult the documentation of the
16 # deprecated API in order to know how to port your code away from it.
17 DEFINES += QT_DEPRECATED_WARNINGS
18
19 # You can also make your code fail to compile if you use deprecated APIs.
20 # In order to do so, uncomment the following line.
21 # You can also select to disable deprecated APIs only up to a certain version of Qt.
22 #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0 23
24 SOURCES += \
25 src/3dface.c \
26 src/3dline.c \
27 src/3dsolid.c \
28 src/acad_proxy_entity.c \
29 src/appid.c \
30 src/arc.c \
31 src/attdef.c \
32 src/attrib.c \
33 src/binary_data.c \
34 src/binary_entity_data.c \
35 src/binary_graphics_data.c \
36 src/block.c \
37 src/block_record.c \
38 src/body.c \
39 src/circle.c \
40 src/class.c \
41 src/color.c \
42 src/comment.c \
43 src/dictionary.c \
44 src/dictionaryvar.c \
45 src/dimension.c \
46 src/dimstyle.c \
47 src/donut.c \
48 src/drawing.c \
49 src/ellipse.c \
50 src/endblk.c \
51 src/endsec.c \
52 src/endtab.c \
53 src/entities.c \
54 src/entity.c \
55 src/file.c \
56 src/group.c \
57 src/hatch.c \
58 src/header.c \
59 src/helix.c \
60 src/idbuffer.c \
61 src/image.c \
62 src/imagedef.c \
63 src/imagedef_reactor.c \
64 src/insert.c \
65 src/layer.c \
66 src/layer_index.c \
67 src/layer_name.c \
68 src/leader.c \
69 src/light.c \
70 src/line.c \
71 src/ltype.c \
72 src/lwpolyline.c \
73 src/mesh.c \
74 src/mleader.c \
75 src/mleaderstyle.c \
76 src/mline.c \
77 src/mlinestyle.c \
78 src/mtext.c \
79 src/object.c \
80 src/object_id.c \
81 src/object_ptr.c \
82 src/ole2frame.c \
84 src/point.c \
85 src/polyline.c \
86 src/proprietary_data.c \
87 src/rastervariables.c \
88 src/ray.c \
89 src/region.c \
90 src/rtext.c \
91 src/section.c \
92 src/seqend.c \
93 src/shape.c \
94 src/solid.c \
95 src/sortentstable.c \
96 src/spatial_filter.c \
97 src/spatial_index.c \
98 src/spline.c \
99 src/style.c \
100 src/sun.c \
101 src/surface.c \
102 src/table.c \
103 src/tables.c \
104 src/text.c \
105 src/thumbnail.c \
106 src/tolerance.c \
107 src/trace.c \
108 src/ucs.c \
109 src/util.c \
110 src/vertex.c \
111 src/view.c \
112 src/viewport.c \
113 src/vport.c \
114 src/xline.c \
115 src/xrecord.c
116
117 HEADERS += \
118 src/3dface.h \
119 src/3dline.h \
120 src/3dsolid.h \
121 src/acad_proxy_entity.h \ 122 src/appid.h \
123 src/arc.h \
124 src/attdef.h \
125 src/attrib.h \
126 src/binary_data.h \
127 src/binary_entity_data.h \ 128 src/binary_graphics_data.h \ 129 src/block.h \
130 src/block_record.h \
131 src/body.h \
132 src/circle.h \
133 src/class.h \
134 src/color.h \
135 src/comment.h \
136 src/dbg.h \
137 src/dictionary.h \
138 src/dictionaryvar.h \
139 src/dimension.h \
140 src/dimstyle.h \
141 src/donut.h \
142 src/drawing.h \
143 src/dxf.h \
144 src/ellipse.h \
145 src/endblk.h \
146 src/endsec.h \
147 src/endtab.h \
148 src/entities.h \
149 src/entity.h \
150 src/file.h \
151 src/global.h \
152 src/group.h \
153 src/hatch.h \
154 src/header.h \
155 src/helix.h \
156 src/idbuffer.h \
157 src/image.h \
158 src/imagedef.h \
159 src/imagedef_reactor.h \ 160 src/insert.h \
161 src/layer.h \
162 src/layer_index.h \
163 src/layer_name.h \
164 src/leader.h \
165 src/light.h \
166 src/line.h \
168 src/lwpolyline.h \
169 src/mesh.h \
170 src/mleader.h \
171 src/mleaderstyle.h \ 172 src/mline.h \
173 src/mlinestyle.h \
174 src/mtext.h \
175 src/object.h \
176 src/object_id.h \
177 src/object_ptr.h \
178 src/ole2frame.h \
179 src/oleframe.h \
180 src/param.h \
181 src/point.h \
182 src/polyline.h \
183 src/proprietary_data.h \ 184 src/rastervariables.h \ 185 src/ray.h \
186 src/region.h \
187 src/rtext.h \
188 src/section.h \
189 src/seqend.h \
190 src/shape.h \
191 src/solid.h \
192 src/sortentstable.h \ 193 src/spatial_filter.h \ 194 src/spatial_index.h \ 195 src/spline.h \
196 src/style.h \
197 src/sun.h \
198 src/surface.h \
199 src/table.h \
200 src/tables.h \
201 src/text.h \
202 src/thumbnail.h \
203 src/tolerance.h \
204 src/trace.h \
205 src/ucs.h \
206 src/util.h \
207 src/vertex.h \
208 src/view.h \
209 src/viewport.h \ac reactor
210 src/vport.h \
211 src/xline.h \
212 src/xrecord.h
213 unix {
214 target.path = /usr/lib
215 INSTALLS += target
216 }
217
218 DISTFILES += \
219 src/Makefile.am \
220 src/libdxf.pc.in
构建⽣成静态库⽂件libdxf.a
同样滴，例⼦tests.pro
1 QT -= gui
2
3 CONFIG += c++11 console
4 CONFIG -= app_bundle
5
6 # The following define makes your compiler emit warnings if you use
7 # any Qt feature that has been marked deprecated (the exact warnings
8 # depend on your compiler). Please consult the documentation of the
9 # deprecated API in order to know how to port your code away from it.
10 DEFINES += QT_DEPRECATED_WARNINGS
11
12 # You can also make your code fail to compile if it uses deprecated APIs.
13 # In order to do so, uncomment the following line.
14 # You can also select to disable deprecated APIs only up to a certain version of Qt.
15 #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0 16
17 SOURCES += \
18 test_point.c \
19 tests.c
20
21 # Default rules for deployment.
22 qnx: target.path = /tmp/$${TARGET}/bin
23else: unix:!android: target.path = /opt/$${TARGET}/bin
24 !isEmpty(target.path): INSTALLS += target
25
26 HEADERS += \
27 includes.h
28
29 INCLUDEPATH +=../
30
31 win32: LIBS += -L$$PWD/../build/bin/MinGW_32_Debug/debug/ -llibdxf
32
33 INCLUDEPATH += $$PWD/../build/bin/MinGW_32_Debug/debug
34 DEPENDPATH += $$PWD/../build/bin/MinGW_32_Debug/debug
35
36 win32:!win32-g++: PRE_TARGETDEPS += $$PWD/../build/bin/MinGW_32_Debug/debug/libdxf.lib
37else:win32-g++: PRE_TARGETDEPS += $$PWD/../build/bin/MinGW_32_Debug/debug/liblibdxf.a
Qt构建成功！test.c⽤于读取dxf⽂件，test_point.c是⼀个写操作例⼦。
1/*!
2 * \brief Reads a dxf file using libdxf form examples dir.
3 *
4 * \version According to DXF R2000.
5*/
6int main (void)
7 {
8if (dxf_file_read ("../../examples/qcad-example_R2000.dxf"))
9 fprintf (stdout, "TESTS: R2000 exited with error\n");
10else
11 fprintf (stdout, "TESTS: R2000 exited with no error\n");
12
13return1;
14 }
但是运⾏时，读取dxf⽂件⼀直错误，看来这个库确实还存在不少bug，这就是所谓的“work in progress”。期待不断完善！
版权声明：本站内容均来自互联网，仅供演示用，请勿用于商业和其他非法用途。如果侵犯了您的权益请与我们联系QQ:729038198，我们将在24小时内删除。
发表评论