rubber band
ruler on cp.com
- .Paul wiki page
- [RESOLVED] Rubberband Lines
- Inspirational Visual Basic.Net
- Maths Revision V1.0
- Maths Revision V2.0
- OOP - Transformations
- Using Forms + Controls
- Solving Triangles
- OOP Areas and Volumes
- OOP Statistical Functions
- VB.Net - Pascal's Pyramid
- VB.Net - Vertex (Game)
- VB.Net - Random Maze Games
- C# - OOP Sudoku
- Rubberband Lines
- [RESOLVED] Rubberband Lines
- Resize and Rotate Shapes in GDI+
- A Resizable Graphical Rectangle
- GDI+ Basics
- Bitmap.LockBits Method
- ControlPaint.DrawReversibleFrame(Rectangle, Color, FrameStyle) Method
- Microsoft KB Archive/314945- How to draw a rubber band rectangle or a focus rectangle in Visual C#
- ControlPaint.DrawReversibleFrame - How am I supposed to erase drawn rectangle?
- a good example to use this ControlPaint.DrawReversibleFrame method
- Combining GDI and GDI+ to Draw Rubber Band Rectangles
- C# Rubber Rectangle
- Drawing rubber-band lines and shapes
- Rotate a point around another point
- How to Draw a Rubber Band Selection Rectangle accurately on a Rotated Canvas?
- C# How to Draw a Rubber Band Selection Rectangle on Panel, like one used in Windows Explorer?
- Thursday, December 16, 2010 Draw Rubber Band like Explorer using C# .NET
- Drawing a Line Chart in GDI+
- Draw Line in C#
- Applied cryptography Part 2: a tool to encrypt files on your HDD
- C# ControlPaint Draws a reversible frame on the screen within the specified bounds, with the specified background color, and in the specified state.
- Control.PointToScreen(Point) Method
- Control PointToClient() vs PointToScreen()
- c#: PointToClient与PointToScreen
- Customizing Windows Forms In C#
- WSSizer, a .NET re-size control
- A C# Sample Code/Article Extending the Capabilities of GDI+ in C# (.NET) - Part I
- A C# Sample Code/Article Extending the Capabilities of GDI+ in C# (.NET) - Part II
- Smooth Resize and Reposition
- Drawing Lines And Rectangles Using the Mouse
- Drawing Rich Text with GDI+
- Introduction to Numerical Methods
- An introduction to numerical programming in C#
- Numerical Laplace Transforms and Inverse Transforms in C#
- Maintenance and Updating of Legacy Code
Must download
good links and need to absorb...
I am using a modified version of chimeric69 Rubberband Lines example from CodeProject . I have posted there but then i released he hasn't visited since Jun '08 . chimeric69's example disposes of the drawlines/string in the mouse up event some how. I have tried to comment out various pieces of the code to stop the dimensions "label" from being disposed of with out any luck.
Many good thoughts and need to absorb...
This is a suite of 22 revision aid programs + tools I wrote... You can download the compiled version (msInstaller) here + the zipped source code for the 22 applications here.
This is my second suite of 22 revision aid programs + tools I wrote...
Mathematical transformations are usually drawn on hard copy graph paper. This application demonstrates simple transformations. There are four types of transformation shown here, which are Enlargement, which can be positive or negative, Reflection, with a variable line of symmetry, Rotation with a variable centre of rotation and positive and negative angles of rotation, and the fourth transformation is Translation. These are the type of transformations that you're often asked to draw in maths exams...
Forms in VB.Net are used as containers for Controls. Both Forms + Controls have Properties, Events, + Methods.
This is a wizard style app. that through a series of questions determines which type of Triangle Solver you need. The solution is given to your chosen number of Decimal Places or Significant Figures, both in the solver form and as an HTML page where step by step solutions are shown, along with a scale diagram and an area calculation.
This is an OOP Areas and Volumes Calculator. It consists of a core containing ten classes representing different geometric shapes. These shapes fall into two categories - 2D and 3D. All of the 2D Shape Classes implement the Shape2D Interface. All of the 3D Classes extend one of the 2D Classes, therefore, they indirectly implement the Shape2D Interface. Additionally, all of the 3D Classes implement the Shape3D Interface.
This is an OOP example that focuses on Statistical Functions, with input via a NumericUpDown Control, and displaying output in a PropertyGrid Control. The OOP part is simple. There's a Class for each of these...
Pascal's Pyramid is an original card game, played with an irregular deck of cards. The game board (or pyramid) is loosely based on Pascal's Triangle, which is a triangular array of the binomial coefficients. Each deck contains 20 aces, 4 each of numbers 2 to 10 inclusive, and 2 sets of face cards, which is 80 cards in total. The aim of the game is to build the pyramid with cards in a predefined order. It isn't possible to play an illegal move - the hexagon cells in the pyramid will only allow legal moves. Each deal from the deck gives you three new cards that you can either use or discard.
This is an original strategy game, written in VB2008 (for wider platform compatibility).
This is a maze solving game, with a maze overlay drawn on an extended (restricted) DataGridView. The DataGridView only accepts arrow key input. The mazes are created in conjunction with a 2D array, and arrow key movement through the DataGridView is limited to clear paths. Navigation is blocked where walls are drawn. The solver part of the game finds and draws a path from the start cell to the end cell.
Sudoku is a number puzzle game, played on a nine by nine cell grid. Within that grid, there are nine sub-regions consisting of three cells by three cells. In this version, there are three levels of difficulty, which are Most clues, Medium clues, and Least clues.
Good rubber band demo
Using the rubberband line as a ruler.
Some discussion on above article.
the problem with the original program is that it draws directly to the form, which isn't persistent. as soon as the form is repainted, it erases the line. i changed it to draw to a bitmap that is then used as the forms backgroundimage.
More Papers
Draw a shape-like editor implementing the use of anchors to resize and rotate a selection rectangle
An object associated with a pictureBox managing callback to manipulate the rectangle area.
The ControlPaint Class Technically, the ControlPaint class isn't a part of GDI+. However, it's an extremely useful tool for custom control developers who use GDI+. It is also a well kept .NET secret. Essentially, the ControlPaint class offers methods for drawing standard Windows interface elements, like scroll buttons, borders, focus rectangles, and check boxes.
Best solution
Locks a Bitmap into system memory.
Draws a reversible frame on the screen within the specified bounds, with the specified background color, and in the specified state.
this is the authoritive information. I only need to use this technique.
Tips:Note that this solution is available only for output on the screen. To draw reversible lines on a graphics object, you need to either interoperate with GDI or call Bitmap::LockBits() and manipulate the image bits directly.
good discussion
System.Windows.Forms.ControlPaint.DrawReversibleFrame(System.Drawing.Rectangle, System.Drawing.Color, System.Windows.Forms.FrameStyle)
More Examples
Demonstrates drawng rubber band rectangles using GDI in a .NET GDI app
Implements a Rubber Rectangle in C#.
Rubber Band
The lack of XOR Drawing feature in GDI+ was not certainly welcome in the programmer's community. I guess it will be hard to survive with this handicap.
I have a task to draw a specific graphic. As part of this task I need to rotate some dot's on 45 degrees.
I have one Flow Layout Panel with some User Controls in it. I Want to Select these controls using rectangle selection using Mouse,like one used in windows file explorer . I have tried these : https://support.microsoft.com/en-us/kb/314945 But it was very flickering and not useful (I might be wrong,please correct me). Any good examples please.
Charts are useful for representing numeric data in a graphical way. There are several different types o charts, including pie, line, and bar charts. In this section we will learn how to use GDI+ and ASP.NET to draw a line chart from data entered by a user.
The DrawLine method draws a line between two points specified by a pair of coordinates. DrawLines draws a series of lines using an array of points.
This tutorial shows how to use C# ControlPaint type DrawReversibleFrame(System.Drawing.Rectangle rectangle, System.Drawing.Color backColor, System.Windows.Forms.FrameStyle style) method.
Computes the location of the specified client point into screen coordinates.
The MSDN does not provide, IMHO, a clear difference between Control.PointToScreen(link) and Control.PointToClient(link) methods.
很早就见过这两个方法，却未曾深入研究，偶尔一用，却纠结于其转换方法，遂写Demo以求验证，记录认知以做备忘。
I wanted to create Custom windows forms in C#. Before working on this code, i started to find any code that could help me to create custom windows forms in C# on internet. but unfortunately i couldn't find any simple and useful also looks good form code. I found some code but they all are complicated. I also found some codes that are simple but not useful. When i started working on solving this problem, i thought to use Custom Panel/Panel as a border of a Frame for change the size of Form such as Width, Height etc and use Custom Buttons as a Control Box of a Frame.
A .NET control meant to accomplish a task similar to MFC’s CRectTacker().
The article is about extending the capabilities of GDI+ in C# , When programmers look to develop serious imaging applications, a surprising shortcoming is noticed in GDI+. The shortcoming is the absence of an API which is useful in selecting regions within an image in a user interactive way.
This article is a continuation to my previous article where I present two more methods to do the same
A demo on how to smoothly change the size or position of a Windows Form while holding down a button.
Simple program utilizing the mouse to draw lines and rectangles.
GDI+ does not support rendering of Rich Text and this has always represented a challenge for developers. The approach described in this article offers a solution to such limitation by tapping into the power of API hooking.
Introduction to Numerical Methods and Updated Polynomial Class
Some of the first things you need to know when writing numerical software in C#.
Presents a C# class for calculating Laplace tranforms and inverse transforms.
A collection of tips to help you maintain your legacy code more efficiently
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