Sketching and Primitive Tools

Sketching Fundamentals

  • Learn the essentials of sketching accurate curves, snapping to points, and using temporary construction guides. See Sketching Essentials for a full overview.

Curves and Lines

  • Tools to create, bridge, and manipulate curves.
NameDescription
LineDraw straight lines between two points.
Spline CurveDraw a smooth curve by placing points that the curve passes through.
Control Point CurveDraw a curve using control points that influence its shape without lying on it.
Bridge CurveConnect two existing curves with a smooth bridging curve.
Split Curve At PointSplit a curve into two separate curves at a specified point.
Insert CV At PointAdd a control vertex to an existing curve for finer shape control.
TrimTrim curves at their intersections to clean up geometry.

Circle Tools

  • Tools to create circles using different construction methods.
NameDescription
Center CircleDraw a circle by defining its center point and radius.
Two Point CircleDraw a circle by defining two points on its diameter.
Three Point CircleDraw a circle passing through three specified points.
Tangent CircleDraw a circle tangent to existing curves or edges.
EllipseCreate an ellipse by defining its center and two radii.

Arc Tools

  • Tools to create arcs using different construction methods.
NameDescription
Center Point ArcDraw an arc by defining a center point, radius, and angle.
Three Point ArcDraw an arc passing through three specified points.
Tangent ArcDraw an arc that begins tangent to an existing curve or edge.

Polygons and Spirals

  • Tools to create regular polygons and spiral curves.
NameDescription
Regular PolygonDraw a polygon with a defined number of sides.
SpiralDraw a spiral curve with a defined pitch and number of turns.

Rectangle Tools

  • Tools to create rectangles using different construction methods.
NameDescription
Corner RectangleDraw a rectangle by defining two opposite corner points.
Center RectangleDraw a rectangle from its center point outward.
Three Point RectangleDraw a rotated rectangle using three points to define its orientation and size.

3D Primitives

  • Tools to create basic 3D solid shapes as a starting point for modeling.
NameDescription
SphereCreate a sphere by defining its center and radius.
Corner BoxCreate a box by defining two opposite corner points.
Center BoxCreate a box from its center point outward.
Three Point BoxCreate a rotated box using three points to define its orientation and size.
CylinderCreate a cylinder by defining its base center, radius, and height.

Measurement and Analysis

  • Tools to evaluate curve and surface quality.
NameDescription
Measure ContinuityAnalyze the continuity between two curves or surfaces.
Measure DistanceMeasure the distance between two points.
Measure RadiusMeasure the radius of a curve or circular edge.
Toggle CurvatureDisplay curvature combs on curves to visualize and evaluate their smoothness.