# Category Archives: geometry

## Find rectangles defined by a side and aspect ratio in C#

You probably haven’t needed to make your program draw rectangles that are defined by specifying one of its sides. I haven’t either, but I want this for another program that I plan to write. Of course a single side isn’t … Continue reading

Posted in drawing, geometry, graphics | | 3 Comments

## Fill a target area found by trilateration in C#

The post Perform trilateration in C# explains how a C# program can use trilateration to find an area where a target point lies. This post explains how you can draw that area. The Target Area The target area found by … Continue reading

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## Perform trilateration in C#

This post explains how a C# program can use trilateration to locate a point that is known distances from three other points. Trilateration is somewhat similar to triangulation, so following two sections begin by explaining what triangulation and trilateration are. … Continue reading

Posted in algorithms, geometry, mathematics | | 7 Comments

## Find the angle between two vectors in C#

This example shows how you can find the angle between two vectors. The program has three main parts: selecting the points that define the vectors, drawing the vectors, and calculating the angle between them. The last task is the most … Continue reading

Posted in algorithms, geometry, mathematics | | 3 Comments

## Find hexes a certain distance from a target hex in C#

My post Draw a hexagonal grid in C# shows how you can draw a grid made up of hexagons. This post shows how you can find the hexes that are a given distance N from a target hex. Basic Idea … Continue reading

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## Make a pie slice drawing extension in WPF and C#

This example shows how to make an extension method to draw a pie slice easily in WPF and C#. My post Make an intuitive extension method to draw an elliptical arc in WPF and C# shows how to make an … Continue reading

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## Make an intuitive extension method to draw an elliptical arc in WPF and C#

In my previous post Draw an elliptical arc in WPF and XAML, I explained how WPF makes you define an elliptical arc. Their method almost makes sense if you want draw an arc as part of a path. however, if … Continue reading

Posted in drawing, geometry, graphics, mathematics, wpf, XAML | | 2 Comments

## Draw an elliptical arc in WPF and XAML

This example shows how to use XAML code to draw an elliptical arc in a WPF. The following sections explain how to specify an elliptical arc and how to draw one in XAML. Specifying an Elliptical Arc WPF provides several … Continue reading

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## Solve Geometric Problems with C#

[This is a promo piece by Packt, the publisher of my book The Modern C# Challenge. It includes two of the 100 example problems and solutions in the book.] Solve Geometric Problems with C# Learn how to solve C# geometric … Continue reading

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## Review posted: “The Modern C# Challenge”

The Modern C# Challenge: Become an expert C# programmer by solving interesting programming problems Clock End Gooner has posted a review of my latest book, The Modern C# Challenge: Become an expert C# programmer by solving interesting programming problems. Please … Continue reading

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