Category Archives: drawing

Make numbered buttons in C#

Posted on January 19, 2021 by RodStephens

This program lets you create a sequence of images that look like numbered buttons. It’s another program that I seem to recreate periodically. Click the Background and Foreground color swatches to change those colors. Use the numeric up/down controls to … Continue reading →

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Enlarge a polygon that has colinear vertices in C#

Posted on December 1, 2020 by RodStephens

The example Enlarge a polygon in C# shows how you can expand a polygon. The basic idea is to offset each of the polygon’s edges away from the polygon’s center and then see where adjacent edges intersect as shown in … Continue reading →

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Use the mouse wheel to scale images while cropping them to a desired aspect ratio in C#

Posted on November 19, 2020 by RodStephens

This example adds mouse wheel support to the example Crop scaled images to a desired aspect ratio in C#. Some social media platforms work best with a 4:3 aspect ratio, so I use that example almost every day to crop … Continue reading →

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Allow scrolling while making a hexagonal montage in C#

Posted on November 16, 2020 by RodStephens

The example Make a hexagonal montage of pictures in C# shows how to make a hexagonal montage similar to the one shown above. I sometimes want to make a montage that is much bigger, and that example doesn’t let you … Continue reading →

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Print product signs in C#

Posted on October 31, 2020 by RodStephens

This is a program I recently wrote to print product signs for my bakery The Enchanted Oven. You can modify the code to use your product names and prices. In the program’s main form (upper left in the picture), select … Continue reading →

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Allow scrolling while making a diagonal picture montage in C#

Posted on October 9, 2020 by RodStephens

The post Make an improved diagonal picture montage in C# describes a program that lets you make a diagonal picture montage similar to the one shown above. I recently wanted to make a picture montage that was much bigger. There … Continue reading →

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Let the user scribble on a background image in C#

Posted on September 23, 2020 by RodStephens

The post Let the user scribble on a PictureBox in C# shows how you can let the user draw with the mouse. This example lets you load a background image. It also lets you save the result into an image … Continue reading →

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Draw a radar chart in C#

Posted on September 20, 2020 by RodStephens

A radar chart shows measurements along several axes that all radiate out from a common center. This lets you compare several properties for different objects at the same time. in a way, you can think of a radar chart as … Continue reading →

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Revised: Graph world total COVID-19 cases, deaths, and recoveries in C#

Posted on September 17, 2020 by RodStephens

This post revises the example Graph world total COVID-19 cases, deaths, and recoveries in C#. Ulrich Rosin left a comment on that post. He added a seven-day average. He also displayed tick marks for the beginning of each month instead … Continue reading →

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Crop scaled images to a desired aspect ratio in C#

Posted on August 19, 2020 by RodStephens

I often need to crop images and sometimes I want a specific aspect ratio. (In case you haven’t heard this term before, the aspect ratio is the ratio of the image’s width to height. As an equation, it’s width / … Continue reading →

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