finish practiceDraw4

CrazyPudding · May 22, 2018 · 225739f · 225739f
1 parent 673e9ff
commit 225739f
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Showing 4 changed files with 22 additions and 5 deletions.
diff --git a/...ain/java/com/hencoder/hencoderpracticedraw4/practice/Practice12CameraRotateFixedView.java b/...ain/java/com/hencoder/hencoderpracticedraw4/practice/Practice12CameraRotateFixedView.java
@@ -44,23 +44,28 @@ protected void onDraw(Canvas canvas) {
 
         float centerX1 = point1.x + bitmap.getWidth() / 2;
         float centerY1 = point1.y + bitmap.getHeight() / 2;
-        float centerX2 = point2.y + bitmap.getHeight() / 2;
+        float centerX2 = point2.x + bitmap.getHeight() / 2;
         float centerY2 = point2.y + bitmap.getHeight() / 2;
 
         canvas.save();
         camera.save();
-        matrix.reset();
-        matrix.postTranslate(-centerX1, -centerY1);
         camera.rotateX(30);
+        canvas.translate(centerX1, centerY1);
+        camera.applyToCanvas(canvas);
+        canvas.translate(-centerX1, -centerY1);
         camera.restore();
         canvas.drawBitmap(bitmap, point1.x, point1.y, paint);
         canvas.restore();
 
         canvas.save();
+        matrix.reset();
         camera.save();
         camera.rotateY(30);
-        camera.applyToCanvas(canvas);
+        camera.getMatrix(matrix);
         camera.restore();
+        matrix.postTranslate(centerX2, centerY2);
+        matrix.preTranslate(-centerX2, -centerY2);
+        canvas.concat(matrix);
         canvas.drawBitmap(bitmap, point2.x, point2.y, paint);
         canvas.restore();
     }

diff --git a/...pp/src/main/java/com/hencoder/hencoderpracticedraw4/practice/Practice14FlipboardView.java b/...pp/src/main/java/com/hencoder/hencoderpracticedraw4/practice/Practice14FlipboardView.java
@@ -73,12 +73,17 @@ protected void onDraw(Canvas canvas) {
         int y = centerY - bitmapHeight / 2;
 
         canvas.save();
+        canvas.clipRect(0, 0, getWidth(), centerY);
+        canvas.drawBitmap(bitmap, x, y, paint);
+        canvas.restore();
 
+        canvas.save();
         camera.save();
         camera.rotateX(degree);
         canvas.translate(centerX, centerY);
         camera.applyToCanvas(canvas);
         canvas.translate(-centerX, -centerY);
+        canvas.clipRect(0, centerY, getWidth(), getHeight());
         camera.restore();
 
         canvas.drawBitmap(bitmap, x, y, paint);

diff --git a/README.md b/README.md
@@ -20,4 +20,11 @@ fork 自 [HenCoder](https://github.com/hencoder) 的练习题集合，学习自
 原项目 [README](/PracticeDraw3/README.md)
 
 完成效果：
-![](/images/practice2.jpg)
+![](/images/practice2.jpg)
+
+## 4.Canvas绘制辅助
+
+原项目 [READE](/PracticeDraw4/README.md)
+
+完成效果：
+![](/images/practice4.jpg)
diff --git a/images/practice4.jpg b/images/practice4.jpg