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Parametric Constraint System

The constraint system is the core of the parametric sketcher, allowing you to define precise geometric relationships:

Geometric Constraints​

  • Coincident: Forces two points to occupy the same location
  • Vertical: Constrains a line to be perfectly vertical
  • Horizontal: Constrains a line to be perfectly horizontal
  • Tangent: Makes a line tangent to a circle or arc
  • Perpendicular: Forces two lines, a line and an arc/circle, or two arcs/circles to meet at 90 degrees
  • Point on Line/Shape: Constrains a point to lie on a line, arc, or circle
  • Collinear: Forces two or more lines to lie on the same infinite line
  • Symmetry: Creates symmetrical relationships between elements. Supports two modes:
    • Point Symmetry: Select 3 points (first is the center)
    • Line Symmetry: Select 2 points and 1 line (the line is the axis)

Dimensional Constraints​

  • Distance: Sets the exact distance between two points or along a line
  • Diameter: Defines the diameter of a circle
  • Radius: Sets the radius of a circle or arc
  • Angle: Enforces a specific angle between two lines
  • Aspect Ratio: Forces the ratio between two distances to be equal to a specified value
  • Equal Length/Radius: Forces multiple elements (lines, arcs, ellipses, or circles) to have the same length or radius
  • Equal Distance: Makes two line segments the same length (different from Equal Length/Radius, which can also apply to arcs and circles)