我有一个名为“drawCanvas”的画布来显示包含在名为“CanvasContainInkCanvas”的画布中的图像和inkcanvas。我可以使用 MatrixTransform 进行缩小。
//Get the image that's being manipulation.
Canvas element = (Canvas)e.Source;
//Ues the matrix of the transform to manipulation the element's appearance.
Matrix matrix = ((MatrixTransform)drawCanvas.RenderTransform).Matrix;
//Get the ManipulationDelta object.
ManipulationDelta deltaManipulation = e.DeltaManipulation;
//Find the old center, and apply any previous manipulations.
Point center = new Point(element.ActualWidth / 2, element.ActualHeight / 2);
//Apply new move manipulation (if it exists).
center = matrix.Transform(center);
//Apply new zoom manipulation (if it exists).
matrix.ScaleAt(deltaManipulation.Scale.X, deltaManipulation.Scale.Y, center.X, center.Y);
//Translation (pan)
matrix.Translate(e.DeltaManipulation.Translation.X, e.DeltaManipulation.Translation.Y);
//Set the final matrix.
((MatrixTransform)drawCanvas.RenderTransform).Matrix = matrix;
// set the matrix of canvas that contain inkcanvas
((MatrixTransform)CanvasContainInkCanvas.RenderTransform).Matrix = matrix;
如果我缩小，我可以看到画布外的图像。
我想将图像从画布复制到 inkcanvas 以使用选择。我的问题是图像无法在inkcanvas 之外显示。
如何在 inkcanvas 之外显示图像？
谢谢
更新：如何在 inkcanvas 之外使用选择？