E
I have a program that computes a set of points to generate an airfoil in accordance with NACA equations and can print a rib for a model airplane wing on an ordinary printer. It also generates a simple .DXF file that used to work in AutoCAD and other drawing programs, but the current versions of AutoCAD are not backward compatible and the files I generate are no longer readable with AutoCAD 2000 through 2004. The following error message is displayed:
Invalid or incomplete DXF input -- drawing discarded.
I can read my files in AutoCAD 14 and export them in a DXF format that is compatible, but that won't satisfy users' needs. A sample file is attached and simply has the form as shown below (The ellipsis represents the remaining data points with just the first and last included).
What is the minimum I must add to generate files compatible with the new versions of AutoCAD?
0
SECTION
2
ENTITIES
0
LINE
8
0
10
0
20
0
11
0
21
. . .
0
LINE
8
0
10
0.949508007812073
20
-4.85612389832622E-03
11
0.999916185907668
21
-1.25720928962784E-03
0
ZOOMALL
0
ENDSEC
0
EOF
Invalid or incomplete DXF input -- drawing discarded.
I can read my files in AutoCAD 14 and export them in a DXF format that is compatible, but that won't satisfy users' needs. A sample file is attached and simply has the form as shown below (The ellipsis represents the remaining data points with just the first and last included).
What is the minimum I must add to generate files compatible with the new versions of AutoCAD?
0
SECTION
2
ENTITIES
0
LINE
8
0
10
0
20
0
11
0
21
. . .
0
LINE
8
0
10
0.949508007812073
20
-4.85612389832622E-03
11
0.999916185907668
21
-1.25720928962784E-03
0
ZOOMALL
0
ENDSEC
0
EOF
