The usual objective of dimensioning is to convert a CAD-construction into a
manufacturing-ready drawing. In a parametric system, dimensioning
additionally controls the geometry through the changing of dimension values.
In order to keep these two totally different uses for dimensioning
transparent for the user, SISCAD-P offers two separate types of dimensions:
The important difference in the functionality of the two types of dimensioning is underlined by SISCAD-P in that it puts the two types on separate layers and assigns them different colors:
Parametric dimensions are yellow, reference dimensions are green.
You switch between the two types of dimensioning using the icon in the info parametric window of the main menu. The color of that icon informs you on
the current state of dimensioning.
Dimensioning uses the WYSIWYG principle.
That means that as soon as the objects to be dimensioned are selected, the
dimension can be positioned in the desired place with the cursor. The entering
of further parameters is immediately taken into account in the look of the
dimension.