HTML and CSS Reference
In-Depth Information
Figure 1-2. Graphing calculator interface in Safari for Mac
<input type="button" id="y_equals_two_x" value="y = 2x" style="color: blue;"/>
<input type="button" id="y_equals_one_half_x" value="y = 0.5x" style="color: brown"/>
<input type="button" id="reset_grid" value="Reset Grid"/>
To construct the grid on the <canvas> and graph lines, we'll make use of a few new
Canvas API functions:
moveTo( x , y )
Move the Canvas “cursor” to the ( x , y ) location specified. Subsequent drawing
operations you perform will use this location as the starting point.
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