ntx_type: ntx_symbol
NTX symbol features consist of a 2D or 3D position and a reference to a symbol as specified in an external pattern file. The format of the pattern file is outside the scope of the NTX format definition as users have the freedom to design their own formats. The position of the symbol is the optical centre. Symbol features may have the following attributes:
|
Attribute Name |
Contents |
|
ntx_scale |
The denominator of the largest scale for which the data is valid. A value of zero means the scale indicator is undefined. Range: signed 32-bit integer Default: 0 |
|
ntx_weight |
The line weight of the object, in steps of 0.001 inches at map scale. A positive value indicates that a rectangular slit should be used to plot the line. A negative value indicates that a round dot should be used to plot the line. Range: signed 32-bit integer Default: 0 |
|
ntx_cogo_weight_x ntx_cogo_weight_y ntx_cogo_weight_z |
The weight for each coordinate of COGO points. These are provided for interfacing to external COGO packages. The interpretation of the coordinate weights is left to the user. Range: signed 32-bit integer Default: 0 |
|
ntx_symbol_size |
If this value is positive, it represents the size of the symbol in ground units. Negative values mean a magnification, relative to the size defined for the symbol in the external pattern file. External pattern files are beyond the scope of this software and therefore users are expected to interpret negative values in the way that they find most appropriate. Range: signed real number Default: 1 |
|
ntx_symbol_key |
This is an alphanumeric string that may be used as a cross-reference to additional symbol attributes held elsewhere. The symbol key must be in uppercase, left-justified, and padded with blanks to the right. Range: Maximum size is 12 characters. Default: <blank> |
|
ntx_symbol_rotation |
The angle of the symbol, in degrees. Range: -360.0 to +360.0 Default: 0.0 |