40 lines
1.3 KiB
Markdown
40 lines
1.3 KiB
Markdown
# Plot Bar Graph
|
|
|
|
Displays a bar graph of the numbers you say.
|
|
A bar graph is a kind of chart that shows numbers as lines with different lengths.
|
|
|
|
```sig
|
|
led.plotBarGraph(2, 20);
|
|
```
|
|
|
|
### Parameters
|
|
|
|
* ``value`` is a [number](/types/number) that means what you
|
|
are measuring or trying to show. For example, if you are measuring
|
|
the temperature of ice with the @boardname@, ``value`` might be `0`
|
|
because the temperature might be 0 degrees centigrade.
|
|
* ``high`` is a [number](/types/number) that means the highest
|
|
possible number that the ``value`` parameter can be. This number is
|
|
also the tallest that the lines in the bar chart can be.
|
|
|
|
### Example: chart acceleration
|
|
|
|
This program shows a bar graph of the [acceleration](/reference/input/acceleration)
|
|
in the `x` direction of the @boardname@.
|
|
The @boardname@'s `x` direction is from left to right (or right to left).
|
|
The more you speed up moving the @boardname@ in this direction,
|
|
the taller the lines in the bar graph will be,
|
|
until they are as tall as the parameter `high` says they can be.
|
|
|
|
```blocks
|
|
basic.forever(() => {
|
|
let a = input.acceleration(Dimension.X);
|
|
led.plotBarGraph(a, 1023)
|
|
})
|
|
```
|
|
|
|
### See also
|
|
|
|
[brightness](/reference/led/brightness), [fade in](/reference/led/fade-in), [fade out](/reference/led/fade-out), [LED screen](/device/screen), [stop animation](/reference/led/stop-animation)
|
|
|