Project Detail

Description

StrokeMapper Silverlight UserControl

Task:
Create a Silverlight UserControl that exposes a method named DrawImage that takes string input containing instructions for the creation of a vector image, and then creates that image on a sizeable canvas.

Details:
The StrokeMapper user control will receive input commands resembling the following:

New
Down|black|0.109927|0.236045
Move|black|0.109927|0.236045
Move|black|0.109971|0.236334
Move|black|0.109911|0.236417
Up

The input will contain a single command per line, and often more than 1 command will be sent at a time. Commands may be sent with long delays (many minutes), but state should be maintained at all times. There are 4 core commands: New, Down, Move, and Up.

The New command clears any strokes within the vector image displayed.

The Down command represents a pen being pressed against the writing surface of a given color at a given coordinate point on the drawing surface. This is the beginning of a stroke.

The Move command represents a pen being moved around the writing surface of a given color at a specific coordinate point. This is the continuation of a stroke.

The Down, and Move commands have additional metadata provided. They have a color, an x coordinate, and a y coordinate, each separated by a pipe character (|). Valid colors are black, red, green, blue, and erase. erase is a special color. Any strokes that are of color erase, remove portions of any other strokes that they overlap.

The Up command represents a pen being removed from the writing surface. This is the completion of a stroke.

The drawing surface is a coordinate plane that stretches from (0,0) to (1,1). The drawing surface is what the user control will display. Its state will be maintained until a New command is encountered.

The width of all strokes should be configurable, or exposed as properties of the User Control. The background Fill color should be exposed as a property. The image should be infinitely scaleable.

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Your bid must provide samples of similiar work or show an example of how you would accomplish this task.


Additional files submitted:
StrokeMapperInput.txt
StrokeMapper UserControl.docx