A dimensioning consists of several related feature classes. When you add the Dimension Extension to an industry model, the dimensioning feature classes are created, as shown in the following illustration.
Data Model: A dimensioning feature class consists of several related feature classes.
Dimension Parent: This attribute table does not store any geometry.
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Dimension Table |
Description |
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<dimension> |
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FID |
Primary key |
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DIMENSION_TYPE |
Type of dimensioning: AA = Aligned Abscissa Only AT = Aligned Text Only AC = Aligned Complete OC = Orthogonal Complete OE = Orthogonal Extension Baseline |
Dimension Children: These tables store the geometry.
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Dimension Point Child |
Description |
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<dimension>_P |
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Stores the points at the start and endpoints of the measure line, such as abscissas and ordinates. |
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FID |
Primary key |
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GEOM |
For more information, see Oracle Spatial Users Guide and Reference. |
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FID_PARENT |
Foreign key to dimension parent table. |
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POINT_TYPE |
AS = Start of orthogonal abscissa. AE = End of orthogonal abscissa. AE_ = End of orthogonal abscissa, not to be displayed. OS = Start of orthogonal ordinate. OE = End of orthogonal ordinate. S = Start of aligned line, abscissa. E = End of aligned line, abscissa. |
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Dimension Line Child |
Description |
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<dimension>_L |
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Stores the measure line. |
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FID |
Primary key |
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GEOM |
For more information, see Oracle Spatial Users Guide and Reference. |
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FID_PARENT |
Foreign key to dimension parent table. |
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LENGTH |
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LINE_TYPE |
AL = Aligned line, abscissa. AL_ = Aligned line, abscissa, not to be displayed. HL = Help line for dimension. HL_ = Help line for dimension, not to be displayed. OO = Orthogonal ordinate. OA = Orthogonal abscissa. OAE = Orthogonal abscissa extension. OAB = Orthogonal baseline abscissa. |
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OFFSET |
Stores the offset of the measure line. |
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MEASURED_A |
Measured dimension of aligned line or orthogonal abscissa. |
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MEASURED_O |
Measured dimension of orthogonal ordinate. |
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CALCULATED_A |
Calculated dimension of aligned line or orthogonal abscissa. |
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CALCULATED_O |
Calculated dimension of orthogonal ordinate. |
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Label |
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<dimension>_TBL |
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The label feature class stores the measure label texts. See also Feature Class Type: Label |
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Dimension Label Line |
Description |
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<dimension>_HL |
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Stores lines that are related to labels, for example lines that point to the feature where the label belongs to. |
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FID |
Primary key |
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GEOM |
For more information, see Oracle Spatial Users Guide and Reference. |
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FID_PARENT |
Foreign key to dimension label table. |