Posted by dxli on Mar 30, 2012; 9:53am
URL: https://forum.librecad.org/Tangent-arcs-circles-or-ellips-tp5604952p5606211.html

Hi Allen,

Here's the expanded list:


1, draw a circle tangential to a given circle/arc/ellipse by specifying the center of the new circle.

2, draw a circle tangential to a given circle/arc/ellipse by specifying two points on the circle.

3, draw an ellipse tangential to a given circle/arc/ellipse by specifying the ellipse center and two points on the ellipse.

4, draw an ellipse tangential to a given circle/arc/ellipse by specifying the ellipse center, major axis direction/radius.

5, draw a circle tangential to two given arcs/circles/ellipses by specifying the radius of the circle to be generated.

6, draw a circle tangential to two given arcs/circles/ellipses by specifying a point on the circle to be generated.

7, draw an ellipse tangential to two given arcs/circles/ellipses by specifying the major and minor radiuses.

I'm not sure about the algorithm to do feature 7 yet, and also various complexity levels are involved for those features. I will start from the easier ones.

Thanks,

dxli