Web Programming with html5, css, and JavaScript

623
12.12 Case Study: Solar Shadowing Dynamics

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Review Questions
12.1 Introduction
1. 
For applets, Flash, and canvas, is each one built into modern browsers?
12.3 rectangles Web page
2. 
What is method call chaining?
3. 
Does a color gradient apply to one specified shape or to all of the shapes drawn with the 
context object?
12.4 Drawing text with 
fillText
 and 
strokeText
4. 
If you want to display characters in a normal fashion (as you see them in this sentence), 
should you use 
strokeText
or 
fillText
?
12.5 Formatting text
5. 
What context object property should you use to specify font size for a text string?
6. 
If you use the context object’s 
font
property, what granular font values are you required to 
provide?
7. 
What context object property is for specifying horizontal alignment for text?
12.6 Drawing arcs and Circles
8. 
What kind of arc is created if you call the 
arc
method with starting and ending angle values 
of 0 and 3
π
?
9. 
What kind of arc is created if you call the 
arc
method with starting and ending angle values 
of 0 and 0?
10. 
What happens if you call the 
fill
method for an arc whose ends are not closed?
12.7 Drawing Lines and paths
11. 
What does the 
moveTo
method do?
12. 
What are the two methods that establish the start of a subpath?
13. 
What method should you call to draw a line that connects the end of the most recently 
drawn line segment or arc to the start of the current subpath?