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Monthly Archives: December 2019
Make an improved diagonal picture montage in C#
My earlier example Make a Pinterest-style diagonal picture montage in C# showed how you could make a picture montage showing parts of images rotated by a desired angle. While using that program today I found a small bug. The areas … Continue reading
Posted in drawing, graphics, image processing, tools
Tagged C#, C# programming, drawing, example, example program, graphics, image processing, montage, picture montage, pictures, Pinterest, rotate images, tools, Windows Forms programming
1 Comment
Use VBA to randomize Excel selections
The post Use VBA to randomize cells in Excel explains how you can randomize a simple selection’s rows. Unfortunately that method cannot randomize Excel selections in general. In particular it doesn’t work if the current selection includes multiple areas on … Continue reading
Posted in Excel, VBA
Tagged C#, C# programming, example, example program, Excel, Excel range areas, Excel selection, randomize Excel selections, range areas, VBA, Windows Forms programming
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Understand range areas in Excel VBA
Most of my VBA examples assume that the current selection is a single block of cells. If the selection includes a single area, then you can easily loop through the cells that it contains. Unfortunately if the selection includes multiple … Continue reading
Posted in Excel, VBA
Tagged C#, C# programming, example, example program, Excel, Excel range areas, Excel selection, range areas, VBA, Windows Forms programming
1 Comment
Let the user draw rotated skewed polygons in C#
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
Let the user draw rotated polygons with right angles in C#
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
Let the user save an image of a smooth curve in C#
The post Let the user draw a smooth curve in C# shows how you can let the user draw a smooth curve. This example extends that one to let you save the curve in an image file. There are a … Continue reading
Posted in drawing, graphics
Tagged C#, C# programming, DrawCurve, drawing, example, example program, graphics, SaveImage, smooth curve, spline, Windows Forms programming
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