About Creating Conic Curves

This topic provides information needed to create conic curves.

This page discusses:

Conic Options

Tools Palette displays the following options for defining the conic curve.

Conic curve creation type options are:


Icon	Tooltip	Description
	Two Points Type	Allows you to create a conic curve from two points (the start and end points), two tangencies at these points and either a parameter or a passing point. This type is activated by default.
	Four Points Type	Allows you to create a conic curve from four points (the start and end points, and two intermediate passing points) and one tangency at one of these points. Intermediates passing points have to be selected in logical order.
	Five Points Type	Allows you to create a conic curve from five passing points (the start and end points, and three intermediate passing points). You cannot define a tangency at any of these points. Intermediates passing points have to be selected in logical order.

Conic creation mode options are:


Icon	Tooltip	Description
	Nearest End Point	Lets you create a conic based on existing curves. If the selected points belong to a curve the tangent direction is directly read on the curve. This mode is activated by default.
	Start and End Tangent	Lets you to define: The tangencies at start and end points for Two Points type. For Two Points type, this mode is activated by default. The tangency at one point only for Four Points type, if you deactivate this mode for the three first created points, a tangency must be automatically defined for the last point. Each time you redefine a tangency at one point, the previous defined tangency is removed. For Four Points type, this mode is activated by default. This mode is available with Two Points and Four Points types only, and for these types activated by default.
	Tangent Intersection Point	Available with Two Points type only, allows you to define the intersection point of the start and end tangents. The start and end tangents are defined from this point and the start and end points respectively. This mode deactivates the Start and End Tangent mode.

The conic is varying and associative with the geometrical inputs. You cannot trim nor break conic curves.

When using Conic , remember the following:

The conic is varying and associative with the geometrical inputs, which means that it will be updated after every modification of a geometry input.
You cannot trim nor break conic curves. To work around this, you can project the conic curve of interest onto another sketch, then trim the projected elements.

If you want to trim the conic curve you can isolate it from the rest of the feature.

If you want to isolate the conic curve from the rest of the feature, to trim it, you can right-click the conic curve and select xxx.object > Isolate.