CrossCanvas.Views.WPF
1.0.0
Replaced with mode stable version - Canvas.Views.WPF
dotnet add package CrossCanvas.Views.WPF --version 1.0.0
NuGet\Install-Package CrossCanvas.Views.WPF -Version 1.0.0
<PackageReference Include="CrossCanvas.Views.WPF" Version="1.0.0" />
paket add CrossCanvas.Views.WPF --version 1.0.0
#r "nuget: CrossCanvas.Views.WPF, 1.0.0"
// Install CrossCanvas.Views.WPF as a Cake Addin
#addin nuget:?package=CrossCanvas.Views.WPF&version=1.0.0
// Install CrossCanvas.Views.WPF as a Cake Tool
#tool nuget:?package=CrossCanvas.Views.WPF&version=1.0.0
Canvas and Open GL Stock and Financial Charts
Generic real-time charts for WPF apps.
The main purpose of this app is to be used as a charting tool for real-time financial applications, e.g. backtesters for trading strategies. Here is the most comprehensive guide dedicated to charting in .NET that I have seen so far. Nevertheless, trying various options from that guide I wasn't able to find anything flexible enough for my needs, so created my own. Available in Nuget. Usage sample.
Drawing Methods
Currently available controls.
- CanvasControl - extended WPF
Canvas
control exposingDrawingContext
used withShapes
andGeometries
- CanvasImageControl - a wrapper around SkiaSharp and Open GL
In order to add a different type of panel, e.g. GDI+
or Direct 2D
, you need to implement ICanvasControl
interface.
Chart Types
At the moment, there are four built-in chart types.
- Line - line
- Bar - polygon
- Area - polygon
- Candle - OHLC box, a mix of a line and a rectangle polygon
If there is a need to create a new chart type, then you need to implement IShape
interface.
Pan and Zoom
The chart is completely data-centric, thus in order to scale the chart you need to change the data source.
By default, the chart displays last 100 data points, as defined in IndexCount
property.
MinIndex = Items.Count - IndexCount
MaxIndex = Items.Count
To pan the chart to the left, subtract arbitrary value from both MinIndex
and MaxIndex
.
MinIndex -= 1
MaxIndex -= 1
To pan the chart to the left, do the opposite.
MinIndex += 1
MaxIndex += 1
To zoom in, increase MinIndex
and decrease MaxIndex
to decrease number of visible points.
MinIndex += 1
MaxIndex -= 1
To zoom out, do the opposite.
MinIndex -= 1
MaxIndex += 1
Data source structure
To simplify sycnhronization of multiple charts, data source has format of a list where each entry point has a time stamp and a set of Areas and Series that will be rendered in the relevant viewport.
[
DateTime
{
Area A
{
Line Series => double,
Candle Series => OHLC
},
Area B
{
Line Series => double,
Line Series => double
},
Area C
{
Bar Series => double
}
},
DateTime { ... },
DateTime { ... },
DateTime { ... }
]
- Area is a viewport, an actual chart, each viewport can show several types of series, e.g. a mix of candles and lines.
- Series is a single chart type to be displayed in the viewport, e.g. lines.
- Model is a data point of
dynamic
type, can accept different type of inputs, e.g. double or OHLC box.
At this moment, Painter
supports only horizontal orientation, so the axis X is used as an index scale that picks data points from the source list and axis Y is a value scale that represents the actual value of each data point.
Preview
Notes and Roadmaps
The app is currently implemented as WPF, so it depends on Direct 2D
and Windows API under the hood. In order to make it cross-platform, and use it e.g. in Linux, it's possible to switch to Avalonia
and make AxisDecorator
use SkiaSharp
and Open GL
for drawing. No estimate for when it will happen, but collaborators willing to speed up migration to the cross-platform version are very welcomed.
Product | Versions Compatible and additional computed target framework versions. |
---|---|
.NET | net6.0-windows7.0 is compatible. net7.0-windows was computed. net8.0-windows was computed. |
-
net6.0-windows7.0
- CrossCanvas (>= 1.0.0)
- SkiaSharp.Views.WPF (>= 2.88.0-preview.155)
NuGet packages
This package is not used by any NuGet packages.
GitHub repositories
This package is not used by any popular GitHub repositories.
Version | Downloads | Last updated |
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