C# Corner

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  • Scalable Vector Graphics - RectangleJul 12, 2015. This article is about a detailed explanation of SVG rectangles of various types.
  • Windows Phone: Image Crop With RectangleNov 27, 2014. In this article you will learn how to crop a image with a rectangle in Windows Phone.
  • Create Various Shapes Using Backbone.jsJan 23, 2014. In this article we will create a Backbone application for creating various shapes. Here we create a rectangle and circle and we can change the color and drag these shapes around.
  • Learn How to Draw Text in Canvas In AndroidSep 02, 2013. This article explains how to draw text inside a rectangle using the canvas in Android. Android Studio is used for the sample..
  • Learn About How to Draw Rectangle Using Canvas in AndroidAug 30, 2013. In this Article you willLearn About how to draw rectangle using Canvas in Android using Android Studio
  • Drawing and Type Tools in PhotoshopMar 29, 2013. In this article you will learn about Drawing and type tools in Photoshop.
  • Animation in WPFMar 19, 2013. In the following example we will see how to animate the rectangle so that it appears and disappears from view.
  • SVG Element in HTML5Feb 26, 2013. In this article I am going to describe How to create User Interface Element Implementation of rectangle and polygon with SVG in HTML5.
  • Draw Rectangle Using Web Application In TypeScriptFeb 24, 2013. In this article I explain how to draw a rectangle in a web application using TypeScript.
  • GDI+ Samples - Rectangles, Ellipses, and 3D in VB.NETNov 10, 2012. The sample code in this article shows you how to use GDI+ and VB.NET to draw rectangles, ellipses, and 3D graphics objects.
  • Power pack drawing primitives for VB.NETNov 09, 2012. This kit contains a collection of drawing primitive controls in the form of an oval, rectangle and a line shape.
  • GDI+ Application in VB.NETNov 08, 2012. In this article we move to the more practical aspects of writing graphics applications using GDI+ in the .NET Framework.
  • Windows Store Style Paint ApplicationJul 24, 2012. In this Metro style application you will learn to draw basic shapes like line, rectangle, circle, ellipse, free hand shapes, eraser, and clear screen.
  • Use of Pen Tool, Text Block, Shapes and Opacity in Expression Blend 4Jul 10, 2012. Pen Tool is a Drawing Tool. Shortcut is "P". Generally we can Draw Shapes by using Default Tool's like Rectangle, Ellipse, Line Tool etc but here we can also Draw Shapes by using Pen Tool.
  • Image Reflection in Windows Store AppJul 03, 2012. To day we will talk about the reflection effect in windows store application. This effect is implemented through Render Transform and Transform Group tag in Xaml page applied on the target control where you want to make effect.
  • Canvas Rotating Rectangles Animation Using HTML 5Mar 27, 2012. This article is very helpful to learn about rotating rectangles using the HTML 5 canvas.
  • Canvas Horizontal and Vertical Drag Using HTML 5Mar 24, 2012. In this article we are going to understand horizontal and vertical dragging using the HTML 5 canvas. In this section, drag and drop the the yellow rectangle and observe that it can only move horizontally. Drag and drop the white rectangle and observe that it can only move vertically while the application is running in the browser.
  • Simple Animation in Windows Phone 7Mar 06, 2012. In this article we will create a simple animation in a Windows Phone 7 application. In this animation we will click on a door, then the door will be open and show a dream home.
  • Create an Animated Rotating Rectangle on Canvas Using HTML5Mar 03, 2012. This is a simple application for beginners that shows how to create an animated rotating rectangle on canvas using HTML5.
  • Typography in WPFFeb 27, 2012. In this article I have discussed Typography in WPF, which is basically used to change the size and design of the text and various graphical pictures like rectangle and ellipse etc.
  • Animation in WPF ApplicationFeb 13, 2012. Animation is one of the finest features in a WPF application which give us the ability to create many types of animations. Here we will make a rectangle that will rotate at a fixed position.
  • Load XML File Data in DataGridView & Print DataGridView DataFeb 09, 2012. Using this article you can understand how to load the XML file's record into the DataGridView & then you can print that DataGridView.
  • How to implement a Colorizer application in WPF using F#Aug 26, 2011. This article is a demonstration regarding how you can edit more color in a colorizer in WPF using FSharp. Take a quick review to learn
  • Draw a gradient ellipse in different-different gradient size.Apr 22, 2011. This article shows how you can draw an ellipse in a different-different size of gradient. This size you can give when creating a rectangle.
  • Draw A Vertical Gradient StringApr 20, 2011. This article explains some fundamentals of graphics; Fonts, Brushes, Rectangles, Points etc. basic things. The main topic is how to draw a string into the gradient & vertical direction.
  • Silverlight- Slider Control Part 3Dec 06, 2010. In this article we will be seeing how to create Silverlight Slider control to change the color of the rectangle using SolidColorBrush.
  • Using Tools and Windows in Expression Blend 2.0Sep 14, 2010. This article is a basic introduction of Expression Blend 2 and how to use various tools in Expression Blend. I am using Expression Blend version 2.0.
  • Understanding FramesAug 25, 2010. Frames allow you to divide the page into several rectangular areas and to display a separate document in each rectangle.
  • How to use Rectangle in XNAAug 10, 2010. In this mini-article I will be showing how to use Rectangle.
  • Select Method carefully in GDI+Jul 14, 2010. In this article you will learn how to Select Method carefully in GDI+.
  • Your First Graphics Web Application in GDI+Jun 15, 2010. In this application we will draw a few simple graphics objects, including lines and rectangles.
  • Drawing Other Graphics Shapes by Applying Cap and Dashed Line Styles in GDI+ Feb 08, 2010. In this article I will explain about Drawing Other Graphics Shapes by Applying Cap and Dashed Line Styles in GDI+.
  • Path in WPFFeb 03, 2010. A graphics path is a set of connected lines, curves, and other simple graphics objects, including rectangles, ellipses, and text. This article demonstrates how to create and use paths in WPF and XAML.
  • Rectangle in WPFFeb 03, 2010. The Rectangle object represents a rectangle shape and draws a rectangle with the given height and width. This article demonstrates how to create rectangles in WPF and XAML.
  • Gradient Brushes in GDI+ Feb 02, 2010. In this article I will explain about working with Gradient Brushes in GDI+.
  • The Complement, Exclude, and Union Methods in GDI+Jan 17, 2010. In this article I will explain about the the Complement, Exclude, and Union Methods in GDI+.
  • The Region Class in GDI+Jan 14, 2010. In this article I will explain about the Region Class in GDI+.
  • The Contains Method and Hit Test in GDI+Jan 13, 2010. In this article I will explain about the Contains Method and Hit Test in GDI+.
  • Constructing a Rectangle Object in GDI+Jan 11, 2010. In this article I will explain about Constructing a Rectangle Object in GDI+.
  • Rectangle and Regions in GDI+Jan 08, 2010. In this article I will explain about Rectangle and Regions in GDI+.
  • The GDI+Painter ApplicationJan 06, 2010. In this article I will explain about the GDI+Painter Application.
  • Fill Methods in GDI+Dec 13, 2009. In this article I will explain about Fill Methods in GDI+.
  • Drawing Rectangles in GDI+Nov 17, 2009. In this article I will explain you how to draw rectangles in GDI+.
  • Basic GDI+ ObjectsNov 09, 2009. In this article we will discuss some basic GDI+ objects, such as the color-point-, and rectangle-related structures provided by the .NET Framework library. Understanding these structures is very important because they are used throughout.
  • Drawing Graphics ShapesNov 05, 2009. In this article I will explain about Drawing Graphics Shapes in GDI+.
  • GDI+ ApplicationNov 01, 2009. In this article we move to the more practical aspects of writing graphics applications using GDI+ in the .NET Framework.
  • Silverlight FAQ part 2 (Animations and Transformations)Jun 23, 2009. This FAQ is completed dedicated to animations and transformations using Silverlight. The tutorial starts with animation basics like timelines and storyboard. Later the article moves ahead to talk about different animations supported and we finally end the tutorial with a simple rectangle animation.
  • Implementing Opacity Masks in WPFJan 29, 2009. Opacity masks allow us to make portions of an object transparent or semi transparent. This article demonstrates how to implement opacity masks feature in WPF objects such as a Rectangle and an Image.
  • Rectangle in SilverlightDec 11, 2008. This article demonstrates how to create and use a Rectangle control in Silverlight using XAML and C#.
  • Implementing Opacity Masks in SilverlightNov 05, 2008. Opacity masks allow us to make portions of an object transparent or semi transparent. This article demonstrates how to implement opacity masks feature in Silverlight objects such as a Rectangle and an Image.
  • Cropping or Clipping in SilverlightNov 04, 2008. This article demonstrates how to implement clipping feature in Silverlight such as a Rectangle and an Image.
  • Dynamic and static Rectangle in WPFAug 29, 2008. This article shows how to create dynamic and static rectangle in WPF and XAML with various drawing effects.
  • Drawing Shapes in WPF Jul 31, 2008. This article is an introduction to graphics programming in XAML and WPF. In this article, I discuss various graphics objects including lines, rectangles, ellipses, and paths and how to draw them using XAML and WPF.
  • Drawing Graphics Shapes in XAML Apr 12, 2007. This article describes the drawing model in XAML and how to draw various objects such as line, rectangle, ellipse, and paths using XAML.
  • ASP.NET 2.0 BulletedList ControlOct 09, 2005. ASP.NET 2.0 BulletedList control is used to create a list of items formatted with bullets such as circular and rectangle bullets. This tutorial shows how to use BulletedList control in ASP.NET 2.0 and C#.
  • Drawing XY Plot Graph in C#Sep 30, 2005. The attached code is an update of Mike Gold's XY Plot graph.
  • Enhanced XP Button ControlDec 12, 2003. The enhanced XP style button is very easy to use and it supports rectangle, circle or ellipse shape with image and different colors. This control also inherit most of the properties from the Forms.Button.
  • Drawing Shapes using ThreadingOct 25, 2002. This is simple multi-threading program that draws circles and rectangles. Each shape is handle by individual thread that created every time you press start button. Using sleep method on each thread we can change the speed of each shape.
  • GDI+ Samples: Rectangle, 3D, and EllipseJun 07, 2001. This article has three sample examples on GDI+ - Rectangle, Ellipse, and 3D.

About Rectangle

For the record label, see Rectangle (label).
Rectangle
Rectangle Geometry Vector.svg
Rectangle
Type quadrilateral, parallelogram, orthotope
Edges and vertices 4
Schläfli symbol { } × { }
Coxeter diagram CDel node 1.pngCDel 2.pngCDel node 1.png
Symmetry group Dih2, [2], (*22), order 4
Dual polygon rhombus
Properties convex, isogonal, cyclic Opposite angles and sides are congruent

In Euclidean plane geometry, a rectangle is a quadrilateral with four right angles. It can also be defined as an equiangular quadrilateral, since equiangular means that all of its angles are equal (360°/4 = 90°). It can also be defined as a parallelogram containing a right angle. A rectangle with four sides of equal length is a square. The term oblong is occasionally used to refer to a non-square rectangle. A rectangle with vertices ABCD would be denoted as Rectanglen.PNG ABCD.

The word rectangle comes from the Latin rectangulus, which is a combination of rectus (right) and angulus (angle).

A so-called crossed rectangle is a crossed (self-intersecting) quadrilateral which consists of two opposite sides of a rectangle along with the two diagonals. It is a special case of an antiparallelogram, and its angles are not right angles. Other geometries, such as spherical, elliptic, and hyperbolic, have so-called rectangles with opposite sides equal in length and equal angles that are not right angles.

Rectangles are involved in many tiling problems, such as tiling the plane by rectangles or tiling a rectangle by polygons.

  1. ^ http://www.cimt.plymouth.ac.uk/resources/topics/art002.pdf
  2. ^ Definition of Oblong. Mathsisfun.com. Retrieved 2011-11-13.
  3. ^ Oblong – Geometry – Math Dictionary. Icoachmath.com. Retrieved 2011-11-13.
  4. ^ Coxeter, Harold Scott MacDonald; Longuet-Higgins, M.S.; Miller, J.C.P. (1954). "Uniform polyhedra". Philosophical Transactions of the Royal Society of London. Series A. Mathematical and Physical Sciences (The Royal Society) 246 (916): 401–450. doi:10.1098/rsta.1954.0003. ISSN 0080-4614. JSTOR 91532. MR 0062446. 

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