HATCH

100

Subclass marker (AcDbHatch)

10

Elevation point (in OCS)

DXF: X value = 0; APP: 3D point (X and Y always equal 0, Z represents the elevation)

20, 30

DXF: Y and Z values of elevation point (in OCS)

Y value = 0, Z represents the elevation

210

Extrusion direction (optional; default = 0, 0, 1)

DXF: X value; APP: 3D vector

220, 230

DXF: Y and Z values of extrusion direction

2

Hatch pattern name

70

Solid fill flag (solid fill = 1; pattern fill = 0); for MPolygon, the version of MPolygon

63

For MPolygon, pattern fill color as the ACI

71

Associativity flag (associative = 1; non-associative = 0); for MPolygon, solid-fill flag (has solid fill = 1; lacks solid fill = 0)

91

Number of boundary paths (loops)

varies

Boundary path data. Repeats number of times specified by code 91. See Boundary Path Data

75

Hatch style:

0 = Hatch “odd parity” area (Normal style)

1 = Hatch outermost area only (Outer style)

2 = Hatch through entire area (Ignore style)

76

Hatch pattern type:

0 = User-defined; 1 = Predefined; 2 = Custom

52

Hatch pattern angle (pattern fill only)

41

Hatch pattern scale or spacing (pattern fill only)

73

For MPolygon, boundary annotation flag (boundary is an annotated boundary = 1; boundary is not an annotated boundary = 0)

77

Hatch pattern double flag (pattern fill only):

0 = not double; 1 = double

78

Number of pattern definition lines

varies

Pattern line data. Repeats number of times specified by code 78. See Pattern Data

47

Pixel size used to determine the density to perform various intersection and ray casting operations in hatch pattern computation for associative hatches and hatches created with the Flood method of hatching

98

Number of seed points

11

For MPolygon, offset vector

99

For MPolygon, number of degenerate boundary paths (loops), where a degenerate boundary path is a border that is ignored by the hatch

10

Seed point (in OCS)

DXF: X value; APP: 2D point (multiple entries)

20

DXF: Y value of seed point (in OCS); (multiple entries)

450

Indicates solid hatch or gradient; if solid hatch, the values for the remaining codes are ignored but must be present. Optional; if code 450 is in the file, then the following codes must be in the file: 451, 452, 453, 460, 461, 462, and 470. If code 450 is not in the file, then the following codes must not be in the file: 451, 452, 453, 460, 461, 462, and 470

0 = Solid hatch

1 = Gradient

451

Zero is reserved for future use

452

Records how colors were defined and is used only by dialog code:

0 = Two-color gradient

1 = Single-color gradient

453

Number of colors:

0 = Solid hatch

2 = Gradient

460

Rotation angle in radians for gradients (default = 0, 0)

461

Gradient definition; corresponds to the Centered option on the Gradient Tab of the Boundary Hatch and Fill dialog box. Each gradient has two definitions, shifted and unshifted. A Shift value describes the blend of the two definitions that should be used. A value of 0.0 means only the unshifted version should be used, and a value of 1.0 means that only the shifted version should be used.

462

Color tint value used by dialog code (default = 0, 0; range is 0.0 to 1.0). The color tint value is a gradient color and controls the degree of tint in the dialog when the Hatch group code 452 is set to 1.

463

Reserved for future use:

0 = First value

1 = Second value

470

String (default = LINEAR)