Difference between revisions of "83Plus:Basic:Graphics:Shade("
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'''Token size:''' 1 byte | '''Token size:''' 1 byte | ||
| − | '''Syntax:''' Shade( | + | '''Syntax:''' Shade(''lower_equation'',''upper equation''[,left_x_limit,right_x_limit[,pattern,pixel_frequency]]) |
| − | Shades in an area | + | Shades in an area between two equations. |
| + | |||
| + | == Outputs: == | ||
| + | |||
| + | The area between ''lower_equation'' and ''upper_equation'' is shaded on the graph screen. The width can be specified with ''left_x_limit'' and ''right_x_limit''. ''pattern'' and ''pixel_frequency'' can also be supplied to control the pattern used for shading. | ||
Patterns are: | Patterns are: | ||
* 1: vertical | * 1: vertical | ||
* 2: horizontal | * 2: horizontal | ||
| − | * 3: slanted (top left to | + | * 3: slanted (top left to bottom right) |
| − | * 4: slanted ( | + | * 4: slanted (bottom left to top right) |
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
== Comments == | == Comments == | ||
| − | * | + | * If ''left_x_limit'' and ''right_x_limit'' are left out, the entire area on the screen between the equations is filled |
| + | * Both equations are drawn on the graph screen along with the shading | ||
| + | * ERR:DOMAIN if ''pattern'' isn't a valid pattern number or ''pixel_frequency'' is too large | ||
| + | * If ''pattern'' and ''pixel_frequency'' are left out, the area will be filled with solid black | ||
== Examples == | == Examples == | ||
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:Shade(−X^2-2,−X^2+7,−10,10,3,2 | :Shade(−X^2-2,−X^2+7,−10,10,3,2 | ||
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Latest revision as of 12:29, 18 September 2006
Contents
Synopsis
Token size: 1 byte
Syntax: Shade(lower_equation,upper equation[,left_x_limit,right_x_limit[,pattern,pixel_frequency]])
Shades in an area between two equations.
Outputs:
The area between lower_equation and upper_equation is shaded on the graph screen. The width can be specified with left_x_limit and right_x_limit. pattern and pixel_frequency can also be supplied to control the pattern used for shading.
Patterns are:
- 1: vertical
- 2: horizontal
- 3: slanted (top left to bottom right)
- 4: slanted (bottom left to top right)
Comments
- If left_x_limit and right_x_limit are left out, the entire area on the screen between the equations is filled
- Both equations are drawn on the graph screen along with the shading
- ERR:DOMAIN if pattern isn't a valid pattern number or pixel_frequency is too large
- If pattern and pixel_frequency are left out, the area will be filled with solid black
Examples
To make a sort of Star Trek: Voyager logo:
:Shade(−X^2-2,−X^2+7,−10,10,3,2
