igds_type: igds_line
Dimensions elements are represented in FME with an igds_type of igds_line but the fact that they are dimensions can be detected from the igds_element_type which is type 33. However, the attributes of dimension features from the reader contain all the information to define a dimension element. So features with such attributes may have null geometry and still be passed to the DGNV8 writer to create dimension elements.
The directive EXPLODE_DIMENSION_ELEM controls the way the dimensions are imported. When it is set to yes, the dimensions are exploded into its pieces; when it is set to no, it is imported as an aggregate. The default is yes.
When dimensions are imported as aggregates, the arcs are stroked and text features are output as list attributes only. Therefore, when performing a DGN-to-DGN translation with the option EXPLODE_DIMENSION_ELEM set to no, the text features will be lost. When reading dimensions from a V7 dataset, the dimensions are ignored if they are part of a cell. If the directive READ_BYTE_OFFSET is set to true, then the dimensions will also be ignored.
A dimension element has the following attributes:
|
Attribute Name |
Contents |
|
igds_dim_text{#}.font igds_dim_text{#}.original_justification igds_dim_text{#}.text_size igds_dim_text{#}.text_width_multiplier igds_dim_text{#}.text_used_string_len igds_dim_text{#}.text_rotation igds_dim_text{#}.text_insertion_x igds_dim_text{#}.text_insertion_y igds_dim_text{#}.text_string |
Stores the standard attributes of the text member of the dimension. For example, font, original justification, size and width, etc. Reprojectable: Yes (text insertion x/y) |
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igds_dim_refx{#}.pt.x igds_dim_refx{#}.pt.y igds_dim_refx{#}.pt.z igds_dim_refx{#}.base_offset igds_dim_refx{#}.base_offset_y igds_dim_refx{#}.segment_text_offset igds_dim_refx{#}.flags igds_dim_refx{#}.primary_text_string igds_dim_refx{#}.rxflags.associative igds_dim_refx{#}.rxflags.justification igds_dim_refx{#}.rxflags.upperText igds_dim_refx{#}.rxflags.lowerText igds_dim_refx{#}.rxflags.relative igds_dim_refx{#}.rxflags.mode igds_dim_refx{#}.rxflags.hide_extension (deprecated) igds_dim_refx{#}.rxflags.use_text_margin (deprecated) igds_dim_refx{#}.rxflags.primary_text_exists (deprecated) igds_dim_refx{#}.rxflags.display_primary_plus_tolerance (deprecated) igds_dim_refx{#}.rxflags.display_primary_minus_tolerance (deprecated) igds_dim_refx{#}.rxflags.secondary_text_exists (deprecated) igds_dim_refx{#}.rxflags.display_secondary_plus_tolerance (deprecated) igds_dim_refx{#}.rxflags.display_secondary_minus_tolerance (deprecated) |
Stores the attributes of reference points as list attributes of the dimension. Among these, the primary text string may exist as the text for the dimension, as an alternative to the measured distance. The relative flag indicates that additional refx points for the dimension are stored as relative to the first point. However, they are made absolute when reading in FME, and converted back to relative on write, if the flag attribute is set to > 0. |
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igds_dim_type |
Type of dimension to draw. Range: 1..53 Default: No default |
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igds_dim_scale
|
Scale of dimension Range: Any real number > 0 Default: No default |
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igds_dim_style |
Style of dimension Range: Any real number > 0 Default: No default |
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igds_dimstyle_center_mark |
Range: 1/0 (1 bit) Default: 0 |
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igds_dimstyle_center_bottom |
Range: 1/0 (1 bit) Default: 0 |
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igds_dimstyle_center_left |
Range: 1/0 (1 bit) Default: 0 |
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igds_dimstyle_center_right
|
Range: 1/0 (1 bit) Default: 0 |
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igds_dimstyle_center_top |
Range: 1/0 (1 bit) Default: 0 |
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igds_dimstyle_first_term
|
The style of the terminator at the beginning of the dimension text. Range: 0..7 Default: 0 |
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igds_dimstyle_left_term |
The style of the terminator at left end of the dimension lines. Range: 0..7 Default: 0 |
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igds_dimstyle_right_term |
The style of the terminator at right end of the dimension lines. Range: 0..7 Default: 0 |
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igds_dimstyle_left_witness
|
If set, a witness line is placed at the left or start of the dimension line. Range: 1/0 (1 bit) Default: 0 |
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igds_dimstyle_right_witness
|
If set, a witness line is placed at the right or end of the dimension line. Range: 1/0 (1 bit) Default: 0 |
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igds_dimstyle_prefix_symbol
|
The style of the symbol optionally placed before the dimension text. Range: 0..7 Default: 0 |
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igds_dimstyle_postfix_symbol
|
The style of the symbol optionally placed after the dimension text. Range: 0..7 Default: 0 |
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igds_dimstyle_vertical_text
|
Specifies that the dimension text should be vertical. That is in line with and above the witness line. Range: 1/0 (1 bit) Default: 0 |
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igds_dimstyle_nofit_vertical
|
Specifies that the dimension text should be vertical if it does not fit horizontally in the dimension line. Range: 1/0 (1 bit) Default: 0 |
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igds_dim_weight |
Weight of dimension Range: 0..31 Default: 0 |
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igds_dim_color |
Color of dimension Range: 0..254 Default: 0 |
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igds_dim_primary_accuracy |
Primary accuracy of dimension Range: Unsigned 16-bit integer Default: None |
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igds_dim_secondary_accuracy |
Secondary accuracy of dimension Range: Unsigned 16-bit integer Default: None |
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igds_witness_line_offset |
Offset distance of witness lines from the dimension line. Range: Real Number >0 Default: None |
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igds_witness_line_extension |
Witness line extension distance Range: Real Number >0 Default: None |
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igds_base_to_text_dist |
Base to text distance Range: Real Number >0 Default: None |
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igds_leader_to_text_dist |
Leader to text distance Range: Real Number >0 Default:None |
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igds_text_min_leader |
Text minimum leader size Range: Real Number >0 Default:None |
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igds_arrow_width |
Dimension arrow width Range: Real Number >0 Default:None |
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igds_arrow_height |
Dimension arrow height Range: Real Number >0 Default:None |
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igds_center_mark_size |
Center mark size Range: Real Number >0 |
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igds_base_line_cos_value |
Cosine value of bearing angle of base line. Range: Real Number, -1..1 |
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igds_witness_line_cos_value |
Cosine value for bearing angle of witness line. Range: Real Number, -1..1 |
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igds_base_line_sin_value |
Sine value of bearing angle of base line. Range: Real Number, -1..1 |
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igds_witness_line_sin_value |
Sine value of bearing angle of witness line. Range: Real Number, -1..1 |
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igds_quat.w igds_quat.x igds_quat.y igds_quat.z |
Components of quaternion for 3D orientation Range: Any real number |
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igds_view_id |
To allow to align by view Range: 1 character (1 byte) |
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igds_num_ref_points |
Number of reference points Range: Any real number |
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igds_options_count |
Count of options Range: Any real number |
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igds_dim_text_width |
Width of text member Range: Real number > 0 |
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igds_dim_text_height |
Height of text member Range: Real number > 0 |
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igds_text_font |
Font of text member. See Text Nodes and Text Strings: igds_font. Range: 0 |
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igds_text_color |
Color of text member Range: 0..254 |
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igds_text_weight |
Weight of text member Range: 0..31 |
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igds_use_text_color |
Use text color and not the dimension element color Range: 1/0 (1 bit) |
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igds_use_text_weight |
Use text weight and not the dimension element weight Range: 1/0 (1 bit) |
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igds_dim_textstyle_id
|
The ID of the textstyle used for the text portion of a dimension element. Range: Integer Default: None |
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igds_dim_freezegroup
|
Set to non-zero to freeze a dimension so that it will not draw. Range: Unsigned 32-bit integer Default: None |
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igds_dim_stack_offset
|
The distance between the dimension lines in a stacked dimension. Range: Real number Default: 0.0 |
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igds_dim_version
|
The version of the dimension. Range: 8-bit integer Default: None |
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igds_dual_format
|
Sets the dual format of the dimension. Range: 0..3 (2 bits) Default: 0 |
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igds_use_comma_not_point
|
Set to 1 to use a comma instead of a period for metric dimension text. Range: 1/0 (1 bit) Default: 0 |
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igds_measure_angle |
Specifies that a dimension element measures an angle, instead of a distance. Range: 1/0 (1 bit) |