• Bentley MicroStation Design Reader/Writer
  • Design File Quick Facts
  • Geometry Support
  • V7 Reader Parameters
  • V8 Reader Parameters
  • V7 Writer Parameters
  • V8 Writer Parameters
  • Writing Levels in V8 (DEF Line Parameters)
  • Feature Representation
    • Attribute Linkages
      • Attribute Lists – all linkages
        • Example
      • Attribute Lists – string linkage
      • Attribute Lists – user linkage
      • User Linkages – userId of 22234 and 39030 (Extended entity data linkage)
      • Attribute Lists – dbase, odbc, oracle, ris, dmrs, informix linkages
      • Attribute Lists – framme linkage
      • Attribute Lists – incosada linkage
      • Custom Line Styles
      • XAttribute Attributes
      • Attribute Lists – XFM Linkages
      • Attribute Lists – XFM XAttributes
    • Arcs
    • Cells
    • Cells (Shared)
    • Complex Shapes Strings
    • Curves
    • BSpline Curves
    • External Reference Files
    • Multilines
    • Dimensions
    • Ellipses
    • Lines
    • Non-Geometric Collections
    • Points
    • Polygon Collections
    • Shapes
    • Solids
    • 3D Solids
    • Tags
    • Multi-text Strings
    • Text Nodes
    • Text Strings
    • XFM Feature Stores

BSpline Curves

igds_type: igds_line

This is stored as an IGDS type 27 element. The information of the poles, knots and weights of a spline are stored in element types 21, 26 and 28 respectively. Currently, only reading of bsplines is supported. The bsplines are read and stroked into segments (which is why its igds_type is stored as igds_line).