C H A P T E R 2
Family Collage: Manipulating Programmer-defined Objects on a Canvas
In this chapter, you will learn about
- Creating and manipulating object-oriented programming for drawing on canvas
- Handling mouse events, including double-click
- Saving the canvas to an image
- Using try and catch to trap errors
- Browser differences involving the location of the code
- Using algebra and geometry to construct shapes and determine when the cursor is over a specific object
- Controlling the icon used for the cursor
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