You can create circular arc by several construction types. Click View, Geom Curve to toggle the display of individual curve.
To create a circular arc:
Click Circular Arc (Curve toolbar) or click Geometry, Curve, Circular Arc .
In the dialog , select the type of you want to create the circular arc:
Parameters. Create a circular arc by center, normal, radius, start and end angle. You can also sketch circular arcs when "Sketch on Plane" is checked.
Point/Axis. Create a circular arc by select a center point, an axis and define the radius, start and end angle. "Rotate" option will make the selected point rotate with the axis.
Coordinate Sys . Create a circular arc by selecting a coordinate system, and define the radius, start and end angle.
3 Points. Create a circular arc by 3 points. "Center/Start/End" will make a circle by different meaning. Suppose the three points are P1, P2 and P3. P1 will be the center of the circle, and P2 will locate at one end of the circular arc. That means the radius will be |P2-P1|. P3 will be used to calculate the axis vector and the end point of the circular arc. The axis vector is (P2-P1)*(P3-P1).
Tangent Two Lines. Create a circular arc which is tangent with two selected lines and the radius is given firstly. If two lines are parallel with each other, the radius of the tangent circular arc will be calculated automatically. "Ref Position" will make the circular arc pass through the selected point.
a. Select two lines |
b. Create tangent arc using one end of red line as the reference position |
Two Pnts/One Line. Create a circular arc which tangent with the selected line and pass two selected points.
a. Select one line and two points |
b. Create tangent arc |
Two Pnts/Radius. Create circular arcs passing two selected points and using defined radius. The circular arcs will located at a default plane calculated by two points.
a. Select two points |
b. Create circular arcs using radius 1.0 |