■ ICanvas 인터페이스의 ConcatenateTransform 메소드를 사용해 변환하는 방법을 보여준다.
▶ GraphicsDrawable.cs
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using System.Numerics; namespace TestProject; /// <summary> /// 그래픽스 그리기 가능형 /// </summary> public class GraphicsDrawable : IDrawable { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 그리기 - Draw(canvas, dirtyRectangle) /// <summary> /// 그리기 /// </summary> /// <param name="canvas">캔버스</param> /// <param name="dirtyRectangle">더티 사각형</param> public void Draw(ICanvas canvas, RectF dirtyRectangle) { PathF path = new PathF(); for(int i = 0; i < 11; i++) { double angle = 5 * i * 2 * Math.PI / 11; PointF point = new PointF(100 * (float)Math.Sin(angle), -100 * (float)Math.Cos(angle)); if(i == 0) { path.MoveTo(point); } else { path.LineTo(point); } } Matrix3x2 matrix = new Matrix3x2 ( 1, // M11, ScaleX 1, // M12, ShearY 0, // M21, ShearX 1, // M22, SacleY 150, // M31, TranslateX 150 // M32, TranslateY ); canvas.ConcatenateTransform(matrix); canvas.FillColor = Colors.Yellow; canvas.FillRectangle(dirtyRectangle); canvas.Translate(175, 175); canvas.FillColor = Colors.Red; canvas.FillPath(path); } #endregion } |
▶ MainPage.xaml
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<?xml version="1.0" encoding="utf-8" ?> <ContentPage x:Class="TestProject.MainPage" xmlns="http://schemas.microsoft.com/dotnet/2021/maui" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" xmlns:local="clr-namespace:TestProject"> <ContentPage.Resources> <local:GraphicsDrawable x:Key="GraphicsDrawableKey" /> </ContentPage.Resources> <GraphicsView HorizontalOptions="Center" VerticalOptions="Center" WidthRequest="350" HeightRequest="350" Drawable="{StaticResource GraphicsDrawableKey}" /> </ContentPage> |
