Numerical scales for Pharo
# Numeric Scales
[](https://github.com/ObjectProfile/NumericScales/actions/workflows/runTests.yml)
Simple scales for numbers, points and colors.
NumericScales is an essential component used by [Roassal3](https://github.com/ObjectProfile/Roassal3).
- [Installation](#installation)
- [Quick start](#quick-start)
- [Contact](#contact)
## Installation
Execute the following incantation in a Playground:
```Smalltalk
Metacello new
baseline: 'NumericScales';
repository: 'github://ObjectProfile/NumericScales/src';
load.
```
To add NumericScales to your baseline:
```Smalltalk
spec package: 'NumericScales'with: [
spec repository: 'github://ObjectProfile/NumericScales/src' ].
```
## Quick start
The entry point is `NSScale` the package `NumericScales` contains a collection of Scales that you can use to your project, like: linear, log, pow, ordinal and polylinear.
```Smalltalk
scale := NSScale linear
domain: { 0. 100};
range: { 'red'. 'blue' }.
scale scale: 100.
"Color blue"
scale scale: 0.
"Color red"
scale scale: 50.
"Half way between red and blue"
```
## Documentation
You can find more information here
* [User documentation](documentation/UserGuide.md)
## Contact
If you have any questions or problems do not hesitate to open an issue.