Tekla Structures drawings are associative. The objects in the drawing are linked to model objects, which means that most objects in the drawing are automatically updated when the corresponding model objects change. For example, if a model object is resized, the dimension points move with the corresponding object in the drawing, and the dimensions are recalculated. Still you do not lose any manual changes that you have made in the drawing. This applies to all drawing types.
Tekla Structures updates the following drawing objects to reflect the changes in the model:
Parts
Marks
Dimensions
Welds
Views
Section marks
Detail marks
Associative notes
Lines and other shapes
Tables
Tekla Structures retains the following manual changes made to drawings:
Base points of objects; for example, if you drag an object to a new location
Object properties; for example, color, font, and line type
Advanced options related to associativity
XS_ASSOCIATIVE_CHANGE_HIGHLIGHT_SIZE
XS_ASSOCIATIVE_CHANGE_HIGHLIGHT_SYMBOL
XS_HIGHLIGHT_ASSOCIATIVE_DIMENSION_CHANGES