Tag Archives: graphics

Flow words around obstacles for document layout in C#

The example Flow blocks around obstacles for document layout in C# implements a document layout algorithm that flows blocks around obstacles. Moving from there to flowing words around obstacles is relatively simple. The following sections describe the two main places … Continue reading

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Flow blocks around obstacles for document layout in C#

The following two document layout examples draw “illuminated” text by using an initial or drop cap. Draw different styles of “illuminated” text in C# Draw “illuminated” text in C# Martin asked how we could do something similar when the text … Continue reading

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Draw text with colors reversed along a sine wave in C#

The post Draw text with colors reversed along a diagonal line in C# demonstrated a general technique for splitting text (or any other image) into pieces that are drawn differently. That example showed how to draw text with some areas … Continue reading

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Draw text with colors reversed along a diagonal line in C#

The post Draw text with colors reversed in its upper and lower halves in C# showed how you can draw text that has upper and lower halves with colors switched. This example uses a similar technique to switch the colors … Continue reading

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Draw text with colors reversed in its upper and lower halves in C#

This example and the two that follow show how to draw text with an interesting visual effect. The idea is quite simple. Make two bitmaps showing the text with its different color schemes. Then use those images to fill different … Continue reading

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Draw random rectangles in C#

This example simply draws random rectangles on top of each other. It’s mostly straightforward, although it does contain a couple of techniques that are useful if you do a lot of graphics programming. When it starts, the following code performs … Continue reading

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Save a bitmap showing user drawn line segments in C#

The example Draw, move, and delete line segments in C# lets the user draw line segments, but it doesn’t include a way to save a bitmap showing the result. This example provides the same features as the previous one, plus … Continue reading

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Give an image an improved transparent background in C#

This example lets you make some pixels in an image part of a transparent background. Use the File menu to open an image file. When you click on the original image on the left, the program converts pixels that have … Continue reading

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Make an image with rounded corners and a transparent background in C#

Recently I wanted to make an image for a gift card that had rounded corners. Unfortunately the Graphics class does not have a method to draw rectangles with rounded corners. Fortunately, I have already described the key method in my … Continue reading

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Add a watermark to all of the files in a directory in C#

I recently wanted to make a slide show where each picture displayed a logo or watermark. File Explorer can easily play a slide show. Simply follow these steps: Browse to the folder containing the images. Click one of the image … Continue reading

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