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Tag Archives: line
Calculate where a line segment and an ellipse intersect in C#
Finding the intersection between a line segment and an ellipse requires a lot of mathematics. It’s not particularly hard mathematics, but if you’d rather skip it, you can use the following links to jump to the other parts of this … Continue reading
Posted in algorithms, drawing, geometry, graphics, mathematics
Tagged algorithms, C#, C# programming, drawing, ellipse, ellipse line intersection, ellipse/line intersection, example, example program, geometry, graphics, intersection, line, line ellipse intersection, line segment, line/ellipse intersection, mathematics, Windows Forms programming
7 Comments
Find the tangent lines between two circles in C#
This example shows how you can find the tangent lines between two circles. Depending on how the circles are arranged, they can have 0, 2, or 4 tangent lines. If the circles don’t intersect, as on the left in Figure … Continue reading
Find the tangent lines between a point and a circle in C#
Finding the tangent lines between a point and a circle isn’t too hard if you’re familiar with the example Determine where two circles intersect in C#. Consider the figure on the right. R is the radius of the circle. You … Continue reading
Posted in algorithms, geometry, graphics, mathematics
Tagged algorithms, C#, C# programming, circle, circleline tangent, example, example program, geometry, graphics, line, linecircle tangent, mathematics, tangent, Windows Forms programming
1 Comment
Determine where a line intersects a circle in C#
The FindLineCircleIntersections method shown shortly finds the points where line intersects a circle. It takes as parameters a circle’s center point and radius, and two points on the line. It uses out parameters to return the coordinates of the points … Continue reading
Posted in algorithms, geometry, graphics, mathematics
Tagged algorithms, C#, C# programming, circle, circle line intersection, circle line segment intersection, example, example program, geometry, graphics, line, line circle intersection, line intersects circle, line segment, line segment circle intersection, mathematics, point of intersection, Windows Forms programming
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