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Xamarin RealTime 3D Surface Mesh
// Xamarin Chart Examples
Please note! These examples are new to SciChart Mobile v3 release! SciChart iOS & Android ship with Xamarin.iOS and Xamarin.Android bindings around our native iOS & Android Chart controls, allowing you to create fast & feature rich charts to your Xamarin applications. We include ~90 native iOS examples and 90 Android examples, but now also ~60 Xamarin Chart Examples to help you get started with SciChart. You can download the source for our Xamarin Chart Examples from Github, or browse the source code below.
This example demonstrates how to create high performance realtime Surface Mesh in SciChart with Xamarin bindings.
See more in Documentation for the Surface Mesh and realtime updates: Plotting realtime Data in Xamarin.iOS 3DPlotting realtime Data in Xamarin.Android 3D
// Source Code
The C#/Xamarin.iOS/Xamarin.Android source code for the Xamarin Create Free Surface Chart 3D Chart example is included below (Scroll down!).
Did you know you can also view the source code from one of the following sources as well?
- Clone the SciChart.Xamarin.Examples from Github.
- Also, the SciChart for Xamarin Trial contains the full source code for the Xamarin chart examples (link below).
The SciChart Examples source code is available on Github and viewable in-app for some platforms
// RealtimeUniformMesh3DChartViewController.cs (Xamarin.iOS)
using System;
using System.Timers;
using SciChart.iOS.Charting;
using Xamarin.Examples.Demo.Utils;
namespace Xamarin.Examples.Demo.iOS
{
[Example3DDefinition("Realtime 3D Surface Mesh", description: "Update a Uniform Mesh in real-time", icon: ExampleIcon.RealTime)]
public class RealtimeUniformMesh3DChartViewController : SingleChartViewController<SCIChartSurface3D>
{
private const int Width = 30;
private const int Height = 30;
private const int TimerInterval = 33;
private volatile bool _isRunning = false;
private int _frames = 0;
private Timer _timer;
private readonly UniformGridDataSeries3D<double, double, double> _dataSeries3D = new UniformGridDataSeries3D<double, double, double>(Width, Height);
private readonly SCIDoubleValues _buffer = new SCIDoubleValues(Width * Height);
protected override void InitExample()
{
var rSeries3D = new SCISurfaceMeshRenderableSeries3D
{
DataSeries = _dataSeries3D,
Stroke = 0x7FFFFFFF,
StrokeThickness = 1f,
DrawSkirt = false,
Minimum = 0,
Maximum = 0.5,
Shininess = 64,
MeshColorPalette = new SCIGradientColorPalette(
new[] { ColorUtil.Sapphire, ColorUtil.Blue, ColorUtil.Cyan, ColorUtil.GreenYellow, ColorUtil.Yellow, ColorUtil.Red, ColorUtil.DarkRed },
new[] { 0, .1f, .3f, .5f, .7f, .9f, 1 })
};
using (Surface.SuspendUpdates())
{
Surface.XAxis = new SCINumericAxis3D { AutoRange = SCIAutoRange.Always };
Surface.YAxis = new SCINumericAxis3D { VisibleRange = new SCIDoubleRange(0, 1) };
Surface.ZAxis = new SCINumericAxis3D { AutoRange = SCIAutoRange.Always };
Surface.RenderableSeries.Add(rSeries3D);
Surface.ChartModifiers.Add(CreateDefault3DModifiers());
Surface.Camera = new SCICamera3D();
}
Start();
}
private void Start()
{
if (_isRunning) return;
_isRunning = true;
_timer = new Timer(TimerInterval);
_timer.Elapsed += OnTick;
_timer.AutoReset = true;
_timer.Start();
}
private void OnTick(object sender, ElapsedEventArgs e)
{
InvokeOnMainThread(() =>
{
if (!_isRunning) return;
var wc = Width * 0.5;
var hc = Height * 0.5;
var freq = Math.Sin(_frames++ * 0.1) * 0.1 + 0.1;
using (Surface.SuspendUpdates())
{
var calc = _dataSeries3D.IndexCalculator;
_buffer.Count = Width * Height;
for (int i = 0; i < Height; i++)
{
for (int j = 0; j < Width; j++)
{
double radius = Math.Sqrt((wc - i) * (wc - i) + (hc - j) * (hc - j));
double d = Math.PI * radius * freq;
double value = Math.Sin(d) / d;
var index = calc.GetIndexAt(j, i);
_buffer.Set(double.IsNaN(value) ? 1 : value, index);
}
}
_dataSeries3D.CopyFrom(_buffer);
}
});
}
private void Pause()
{
if (!_isRunning) return;
_isRunning = false;
_timer.Stop();
_timer.Elapsed -= OnTick;
_timer = null;
}
public override void ViewDidDisappear(bool animated)
{
base.ViewDidDisappear(animated);
Pause();
}
}
}// CreateRealtimeUniformMesh3DChartFragment.cs (Xamarin.Android)
using SciChart.Charting.Visuals.Axes;
using SciChart.Charting3D.Model;
using SciChart.Charting3D.Model.DataSeries.Grid;
using SciChart.Charting3D.Modifiers;
using SciChart.Charting3D.Visuals;
using SciChart.Charting3D.Visuals.Axes;
using SciChart.Charting3D.Visuals.Camera;
using SciChart.Charting3D.Visuals.RenderableSeries.Data;
using SciChart.Charting3D.Visuals.RenderableSeries.SurfaceMesh;
using SciChart.Core.Model;
using SciChart.Data.Model;
using Xamarin.Examples.Demo;
using System;
using System.Drawing;
using System.Timers;
using Xamarin.Examples.Demo.Droid.Extensions;
using Xamarin.Examples.Demo.Droid.Fragments.Base;
namespace Xamarin.Examples.Demo.Droid.Fragments.Examples3D
{
[Example3DDefinition("Realtime 3D Surface Mesh", description: "Update a Uniform Mesh in real-time", icon: ExampleIcon.RealTime)]
public class CreateRealtimeUniformMesh3DChartFragment : ExampleBaseFragment
{
private const int Width = 30;
private const int Height = 30;
public SciChartSurface3D Surface => View.FindViewById<SciChartSurface3D>(Resource.Id.chart3d);
public override int ExampleLayoutId => Resource.Layout.Example_Single_3D_Chart_Fragment;
private const int TimerInterval = 33;
private volatile bool _isRunning = false;
private readonly object _syncRoot = new object();
private Timer _timer;
private readonly UniformGridDataSeries3D<double, double, double> _dataSeries3D = new UniformGridDataSeries3D<double, double, double>(Width, Height);
private readonly DoubleValues _buffer = new DoubleValues(Width * Height);
private int _frames = 0;
protected override void InitExample()
{
var renderableSeries3D = new SurfaceMeshRenderableSeries3D()
{
DataSeries = _dataSeries3D,
Stroke = 0x7FFFFFFF,
StrokeThickness = 1f.ToDip(Activity),
DrawSkirt = false,
Minimum = 0,
Maximum = 0.5,
Shininess = 64,
MeshColorPalette = new GradientColorPalette(
new Color[] { Color.FromArgb(0xFF, 0x1D, 0x2C, 0x6B), Color.Blue, Color.Cyan, Color.GreenYellow, Color.Yellow, Color.Red, Color.DarkRed },
new float[] { 0, .1f, .3f, .5f, .7f, .9f, 1 })
};
using (Surface.SuspendUpdates())
{
Surface.XAxis = new NumericAxis3D() { AutoRange = AutoRange.Always };
Surface.YAxis = new NumericAxis3D() { VisibleRange = new DoubleRange(0, 1) };
Surface.ZAxis = new NumericAxis3D() { AutoRange = AutoRange.Always };
Surface.Camera = new Camera3D();
Surface.RenderableSeries.Add(renderableSeries3D);
Surface.ChartModifiers = new ChartModifier3DCollection
{
new PinchZoomModifier3D(),
new OrbitModifier3D(),
new ZoomExtentsModifier3D()
};
}
Start();
}
private void Start()
{
if (_isRunning) return;
_isRunning = true;
_timer = new Timer(TimerInterval);
_timer.Elapsed += OnTick;
_timer.AutoReset = true;
_timer.Start();
}
private void OnTick(object sender, ElapsedEventArgs e)
{
lock (_syncRoot)
{
if (!_isRunning) return;
var wc = Width * 0.5;
var hc = Height * 0.5;
var freq = Math.Sin(_frames++ * 0.1) * 0.1 + 0.1;
using (Surface.SuspendUpdates())
{
var calc = _dataSeries3D.IndexCalculator;
_buffer.SetSize(Width * Height);
for (int i = 0; i < Height; i++)
{
for (int j = 0; j < Width; j++)
{
double radius = Math.Sqrt((wc - i) * (wc - i) + (hc - j) * (hc - j));
double d = Math.PI * radius * freq;
double value = Math.Sin(d) / d;
var index = calc.GetIndex(j, i);
_buffer.Set(index, double.IsNaN(value) ? 1 : value);
}
}
_dataSeries3D.CopyFrom(_buffer);
}
}
}
public override void OnDestroyView()
{
base.OnDestroyView();
Pause();
}
private void Pause()
{
if (!_isRunning) return;
_isRunning = false;
_timer.Stop();
_timer.Elapsed -= OnTick;
_timer = null;
}
}
}