Autodesk 15606-011408-9320 User Guide - Page 107

Discrepancies in the Data Conversion, Working with Other Types of Spatial Data

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Discrepancies in the Data Conversion This section provides additional information about how VISION* features are converted and displayed in Autodesk MapGuide. Differences in the Feature Geometry and Symbology Models Because of differences in the feature geometry model between VISION* and Autodesk MapGuide, there are small differences in the way features are drawn. These differences include the following:  Each VISION* polypolyline and polypolygon can contain up to 2048 indi- vidual polylines or polygons, with maximum total vertices of 16384. If the total vertices in a polypolyline or polypolygon exceeds 16384, the feature will be generalized, and the number of vertices will be reduced to save space.  VISION* symbols are drawn as polylines.  VISION* markers are drawn as polylines.  VISION* circles are drawn as polylines. Likewise, because of differences in the symbology models between the two products, there are small differences in the way features are styled when drawn. These include the following:  VISION* colors are mapped to the closest available Autodesk MapGuide color.  Text drawn using the VISION* PostScript and TrueType fonts that are not available to the Autodesk MapGuide clients are drawn using the default SYSTEM font.  Complex VISION* line styles are drawn using the closest available Autodesk MapGuide line style.  Complex polygon hatch styles are filled using the closest available Autodesk MapGuide hatch style or a series of polylines. To improve performance, you can choose colors, line styles, and hatch styles in your VISION* themes that map directly to those in Autodesk MapGuide, and use common TrueType fonts instead of the VISION* vector fonts. Working with Other Types of Spatial Data | 107

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Working with Other Types of Spatial Data
|
107
Discrepancies in the Data Conversion
This section provides additional information about how VISION* features are
converted and displayed in Autodesk MapGuide.
Differences in the Feature Geometry and Symbology Models
Because of differences in the feature geometry model between VISION* and
Autodesk MapGuide, there are small differences in the way features are
drawn. These differences include the following:
Each VISION* polypolyline and polypolygon can contain up to 2048 indi-
vidual polylines or polygons, with maximum total vertices of 16384. If the
total vertices in a polypolyline or polypolygon exceeds 16384, the feature
will be generalized, and the number of vertices will be reduced to save
space.
VISION* symbols are drawn as polylines.
VISION* markers are drawn as polylines.
VISION* circles are drawn as polylines.
Likewise, because of differences in the symbology models between the two
products, there are small differences in the way features are styled when
drawn. These include the following:
VISION* colors are mapped to the closest available Autodesk MapGuide
color.
Text drawn using the VISION* PostScript and TrueType fonts that are not
available to the Autodesk MapGuide clients are drawn using the default
SYSTEM font.
Complex VISION* line styles are drawn using the closest available
Autodesk MapGuide line style.
Complex polygon hatch styles are filled using the closest available
Autodesk MapGuide hatch style or a series of polylines.
To improve performance, you can choose colors, line styles, and hatch styles
in your VISION* themes that map directly to those in Autodesk MapGuide,
and use common TrueType fonts instead of the VISION* vector fonts.