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Category Archives: transformations
Test graphical transformations in C#
This example draws several pictures to let you test graphical transformations. The general approach is the same for each picture. The following section explains how the program draws the pictures that demonstrate the various graphical transformations. The sections after that … Continue reading
Posted in drawing, graphics, transformations
Tagged C#, C# programming, drawing, example, example program, graphical transformations, graphics, Matrix, rotation, scaling, shear, skew, transformations, translation, Windows Forms programming
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Rotate images to straighten them in C#
I’ve written a couple of examples that show how to rotate images. I made many of them because I wanted to adjust a picture I had taken that was slightly crooked. Those examples work well, but they can be fairly … Continue reading
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
Map device coordinates to world coordinates in C#
Sometimes it’s convenient to draw in one coordinate system (called world coordinates) and map those coordinates to the screen’s device coordinates. The example Map points between coordinate systems in C# shows how to do this in C#. For example, the … Continue reading
Draw improved text on a curve in C#
This example shows how to draw improved text along a curved path. The example Draw text on a curve in C# shows how to draw text along a curved path. Unfortunately the spacing between the letters is pretty mediocre in … Continue reading
Interactively rotate images in C#
The example Rotate images by an arbitrary angle in C# explains how you can rotate an image by a angle specified in a TextBox. This example lets you click and drag around the image’s center to specify the angle of … Continue reading