Tag Archives: mathematics

Arrange images on the corners of a polygon in C#

Posted on January 5, 2020 by RodStephens

This post shows a way to arrange images on top of a background image as shown in the image above. How to Use the Program Enter the names of the background and foreground image files, or use the File menu’s … Continue reading →

Posted in graphics, image processing, mathematics | Tagged arrange images, C#, C# programming, example, example program, graphics, image processing, images, mathematics, Windows Forms programming | Leave a comment

Let the user draw rotated skewed polygons in C#

Posted on December 13, 2019 by RodStephens

The example Let the user draw rotated polygons with right angles in C# draws polygons with edges that are parallel or perpendicular to a baseline. This example is very similar except its polygons have edges that are parallel to one … Continue reading →

Posted in algorithms, drawing, graphics, mathematics, transformations | Tagged algorithms, C#, C# programming, drawing, example, example program, graphics, mathematics, rotated polygons, rotated skewed polygons, skewed polygons, transformations, Windows Forms programming | Leave a comment

Let the user draw rotated polygons with right angles in C#

Posted on December 8, 2019 by RodStephens

This example lets the user draw rotated polygons where all edges are either parallel or perpendicular to a defined baseline direction. As a result, all of the polygon’s angles are right angles. (And yes, I know that the polygons aren’t … Continue reading →

Posted in algorithms, drawing, graphics, mathematics, transformations | Tagged algorithms, C#, C# programming, drawing, example, example program, graphics, mathematics, right angle polygons, right angled polygons, rotated polygons, transformations, Windows Forms programming | Leave a comment

Draw interlocked circles in C#

Posted on November 19, 2019 by RodStephens

This example draws a set of interlocked circles so they alternate between above and below each other. As you can see from the picture, the circles are made up of colored lines with black outlines so it’s easy to see … Continue reading →

Posted in algorithms, drawing, graphics, mathematics | Tagged algorithms, C#, C# programming, drawing, example, example program, graphics, interlocked circles, mathematics, Windows Forms programming | Leave a comment

Draw arc wedges in C#

Posted on November 8, 2019 by RodStephens

This example defines several extension methods that draw various interesting items including the one that I originally set out to draw: arc wedges. The extension methods let you easily draw arc wedges, arcs with tic marks, line segments with tic … Continue reading →

Posted in drawing, graphics, mathematics | Tagged arc wedges, arrow heads, arrowheads, C#, C# programming, drawing, example, example program, graphics, line segments, mathematics, tic marks, Windows Forms programming | 2 Comments

Make an Apollonian gasket filled with images in C#

Posted on November 4, 2019 by RodStephens

This example shows how to draw an Apollonian gasket filled with images of a cat. (I promise that this will be my last cat fractal for a while, although I may have one other cat image post coming up. ;-)) … Continue reading →

Posted in algorithms, drawing, graphics, mathematics | Tagged algorithms, Apollonian gasket, Apollonian packing, C#, C# programming, circles, drawing, example, example program, graphics, mathematics, Windows Forms programming | 2 Comments

Draw an image spiral in C#

Posted on October 27, 2019 by RodStephens

This example lets you draw image spirals similar to the one shown above. This example lets you draw image spirals similar to the one shown above. It’s mostly just for fun, although it does include a useful exercise in graphics … Continue reading →

Posted in drawing, graphics, image processing, mathematics | Tagged C#, C# programming, drawing, example, example program, graphics, image processing, image spiral, mathematics, spiral, Windows Forms programming | 1 Comment

Let the user draw, move, and modify an arc in C#, Part 2

Posted on June 7, 2019 by RodStephens

My previous post Let the user draw, move, and modify an arc in C#, Part 1 describes an Arc class that allows a program to draw arcs. This post explains how the example program uses that class to let the … Continue reading →

Posted in drawing, graphics, mathematics | Tagged arc, arc parts, C#, C# programming, drawing, example, example program, graphics, mathematics, point above arc, Windows Forms programming | Leave a comment

Let the user draw, move, and modify an arc in C#, Part 1

Posted on June 6, 2019 by RodStephens

The example See whether a point is above an arc in C# shows how you can find the part of an arc at a particular position. This example uses the techniques described in that one to allow the user to … Continue reading →

Posted in drawing, graphics, mathematics | Tagged arc, arc parts, C#, C# programming, drawing, example, example program, graphics, mathematics, point above arc, Windows Forms programming | 1 Comment

See whether a point is above an arc in C#

Posted on June 5, 2019 by RodStephens

This example shows how you can determine which part of an arc is at a particular position. If you move the mouse over the arc’s start or end point, the program changes its cursor to the PanWest and PanEast cursors. … Continue reading →