📄 boundary_path_data_al_u05_c.htm
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<font face=Arial color=#003399 size=3><b> <a href="dxf_group_codes.htm">DXF Group Codes</a>
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<font face=Arial color=#003399 size=3><b><a href="entities_section_al_u05_c.htm"><img src=images/book2.gif border=0> ENTITIES Section</a>
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<font face=Arial color=#003399 size=3><b><a href="hatch_al_u05_c.htm"><img src=images/bk_space.gif border=0> <img src=images/book2.gif border=0> HATCH</a>
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<font face=Arial color=#003399 size=3><b><img src=images/bk_space.gif border=0> <img src=images/bk_space.gif border=0> <img src=images/book2.gif border=0> Boundary Path Data
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<p><font face="MS Sans Serif,Arial" size=2>The boundary of each hatch object is defined by a path (or <font face=Arial><i>loop</i></font>) that consists of one or more segments. Path segment data varies depending on the entity type (or types) that make up the path. Each path segment is defined by its own set of group codes.
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<font face=Arial size=2><i>Hatch boundary path data group codes
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<TABLE border=0 cellpadding=2 cellspacing=4><TR VALIGN=TOP><TD bgcolor=#F9F6ED><font face="MS Sans Serif,Arial" size=2><b>Group codes</b></font></td>
<TD bgcolor=#F9F6ED><font face="MS Sans Serif,Arial" size=2><b>Description</b></font></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>92</font></p></td>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>Boundary path type flag (bit coded)<br>0 = default<br>1 = external<br>2 = polyline<br>4= derived<br>8 = textbox<br>16 = outermost</font></p></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2><font face=Arial><i>varies</i></font> </font></p><font face=Arial><i><br></i></font></TD>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>Polyline boundary type data (only if boundary = polyline)<br>See Polyline boundary data table below.</font></p></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>93</font></p></td>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>Number of edges in this boundary path (only if boundary is not a polyline)</font></p></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>72</font></p></td>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>Edge type (only if boundary is not a polyline)<br>1 = line<br>2 = circular arc<br>3 = elliptic arc<br>4 = spline</font></p></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2><font face=Arial><i>varies</i></font> </font></p><font face=Arial><i><br></i></font></TD>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>Edge type data (only if boundary is not a polyline). See appropriate Edge data table below.</font></p></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>97</font></p></td>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>Number of source boundary objects</font></p></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>330</font></p></td>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>Reference to source boundary objects (multiple entries)</font></p></td></TR>
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<font face=Arial size=2><i>Polyline boundary data group codes
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<TABLE border=0 cellpadding=2 cellspacing=4><TR VALIGN=TOP><TD bgcolor=#F9F6ED><font face="MS Sans Serif,Arial" size=2><b>Group codes</b></font></td>
<TD bgcolor=#F9F6ED><font face="MS Sans Serif,Arial" size=2><b>Description</b></font></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>72</font></p></td>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>Has bulge flag</font></p></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>73</font></p></td>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>Is closed flag</font></p></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>93</font></p></td>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>Number of polyline vertices</font></p></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>10</font></p></td>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>Vertex location (in OCS). DXF: <FONT FACE=ARIAL><I>X</I></FONT> value; APP: 2D point (multiple entries)</font></p></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>20</font></p></td>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>DXF: <FONT FACE=ARIAL><I>Y</I></FONT> value of vertex location (in OCS). (multiple entries)</font></p></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>42</font></p></td>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>Bulge (optional, default = 0)</font></p></td></TR>
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<font face=Arial size=2><i>Line edge data group codes
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<TABLE border=0 cellpadding=2 cellspacing=4><TR VALIGN=TOP><TD bgcolor=#F9F6ED><font face="MS Sans Serif,Arial" size=2><b>Group codes</b></font></td>
<TD bgcolor=#F9F6ED><font face="MS Sans Serif,Arial" size=2><b>Description</b></font></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>10</font></p></td>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>Start point (in OCS). DXF: <FONT FACE=ARIAL><I>X</I></FONT> value; APP: 2D point </font></p></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>20</font></p></td>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>DXF: <FONT FACE=ARIAL><I>Y</I></FONT> value of start point (in OCS). </font></p></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>11</font></p></td>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>End point (in OCS). DXF: <FONT FACE=ARIAL><I>X</I></FONT> value; APP: 2D point </font></p></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>21</font></p></td>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>DXF: <FONT FACE=ARIAL><I>Y</I></FONT> value of end point (in OCS). </font></p></td></TR>
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<font face=Arial size=2><i>Arc edge data group codes
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<TABLE border=0 cellpadding=2 cellspacing=4><TR VALIGN=TOP><TD bgcolor=#F9F6ED><font face="MS Sans Serif,Arial" size=2><b>Group codes</b></font></td>
<TD bgcolor=#F9F6ED><font face="MS Sans Serif,Arial" size=2><b>Description</b></font></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>10</font></p></td>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>Center point (in OCS). DXF: <FONT FACE=ARIAL><I>X</I></FONT> value; APP: 2D point </font></p></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>20</font></p></td>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>DXF: <FONT FACE=ARIAL><I>Y</I></FONT> value of center point (in OCS). </font></p></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>40</font></p></td>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>Radius</font></p></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>50</font></p></td>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>Start angle</font></p></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>51</font></p></td>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>End angle</font></p></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>73</font></p></td>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>Is counterclockwise flag</font></p></td></TR>
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<font face=Arial size=2><i>Ellipse edge data group codes
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<TABLE border=0 cellpadding=2 cellspacing=4><TR VALIGN=TOP><TD bgcolor=#F9F6ED><font face="MS Sans Serif,Arial" size=2><b>Group codes</b></font></td>
<TD bgcolor=#F9F6ED><font face="MS Sans Serif,Arial" size=2><b>Description</b></font></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>10</font></p></td>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>Center point (in OCS). DXF: <FONT FACE=ARIAL><I>X</I></FONT> value; APP: 2D point </font></p></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>20</font></p></td>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>DXF: <FONT FACE=ARIAL><I>Y</I></FONT> value of center point (in OCS). </font></p></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>11</font></p></td>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>End point of major axis relative to center point (in OCS). DXF: <FONT FACE=ARIAL><I>X</I></FONT> value; APP: 2D point </font></p></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>21</font></p></td>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>DXF: <FONT FACE=ARIAL><I>Y</I></FONT> value of end point of major axis (in OCS). </font></p></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>40</font></p></td>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>Length of minor axis (percentage of major axis length)</font></p></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>50</font></p></td>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>Start angle</font></p></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>51</font></p></td>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>End angle</font></p></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>73</font></p></td>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>Is counterclockwise flag</font></p></td></TR>
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<font face=Arial size=2><i>Spline edge data group codes
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<TABLE border=0 cellpadding=2 cellspacing=4><TR VALIGN=TOP><TD bgcolor=#F9F6ED><font face="MS Sans Serif,Arial" size=2><b>Group codes</b></font></td>
<TD bgcolor=#F9F6ED><font face="MS Sans Serif,Arial" size=2><b>Description</b></font></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>94</font></p></td>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>Degree</font></p></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>73</font></p></td>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>Rational</font></p></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>74</font></p></td>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>Periodic</font></p></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>95</font></p></td>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>Number of knots</font></p></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>96</font></p></td>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>Number of control points</font></p></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>40</font></p></td>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>Knot values (multiple entries)</font></p></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>10</font></p></td>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>Control point (in OCS). DXF: <FONT FACE=ARIAL><I>X</I></FONT> value; APP: 2D point </font></p></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>20</font></p></td>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>DXF: <FONT FACE=ARIAL><I>Y</I></FONT> value of control point (in OCS). </font></p></td></TR>
<TR VALIGN=TOP><TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>42</font></p></td>
<TD bgcolor=#F9F6ED><p><font face="MS Sans Serif,Arial" size=2>Weights (optional, default = 1) </font></p></td></TR>
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