Android的：如何缩放和平移后得到坐标x，图像ÿ [英] Android : How to get Coordinates X,Y of Image after Zoom and Pan

问题描述

我发展缩放和平移Image..Now的应用程序，我需要得到坐标x，y图像的每一个用户时的触摸图像（后缩放和平移），屏幕的坐标不是如法event.getX和event.getX..help me..Thank你了。

I'm developing an application with Zoom and Pan Image..Now, i need to get Coordinates X,y Of Image Each when User Touch Image ( after Zoom and Pan ), Not coordinates of Screen such as method event.getX and event.getX..help me..Thank you very much

推荐答案

请使用此formulla来actaull坐标转换

please use this formulla to convert actaull coordinates

   float curX = (event.getX() / scale) - (left * scale);
    float curY = (event.getY() / scale) - (top * scale);

     mCanvas.drawCircle(((curX / scale)), ((curY / scale)),
                    width / 2 / scale, mPaint);

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