Introduction to the
The Path can be viewed as the Path of the brush to move,or the Path to draw. You can preset the Path of a custom shape for Paint to draw directly.
Commonly used functions
| methods | function | note |
|---|---|---|
| moveTo(float x,float y) | The pen moves to the point x,y | No canvas is touched, no drawing result is generated |
| rMoveTo(float x,float y) | Move the brush to the point (x0+x,y0+y) based on the current pen position (x0,y0) by moving x and y, respectively | No canvas is touched, no drawing result is generated |
| setLastPoint(float x,float y) | Changes the end point of the previous operation | No drawing |
| lineTo(float x,float y) | Draw a line from the current point to x and y | When the pen touches the canvas, it has the actual drawing effect |
| rLineTo(float x,float y) | From the current point (x0,y0), underline to the point (x0+x,y0+y) | Have drawn |
| addPath(Path src) | Add a path | |
| addPath(path src,float x,float y) | SRC moves (x,y) distances before adding | |
| addPath(Path src,Matrix matrix) | Use Matrix to transform and then add | |
| close() | Connect the starting point and end point of Path to form a closed graph | |
| set(Path src) | Set/replace path | |
| offset(float dx,float dy) | Path shift (x,y) | |
| offset(float dx,float dy,Path dst) | The status after path translation is saved to DST. The original path is not used. If DST is null, the original path is used | |
| quadTo(float x1,float y1,float x2,float y2) | (x1,y1) is the control point and (x2,y2) is the end point | |
| rQuadTo(float x1,float y1,float x2,float y2) | (x1,y1) is the offset from the control point to the starting point, and (x2,y2) is the offset from the end point to the starting point | |
| cubicTo(float x1,float y1,float x2,float y2,float x3,float y3) | Draw the third-order Bessel curve (x1,y1)(x2,y2) as the control point (x3,y3) as the end point | |
| rCubicTo(float x1,float y1,float x2,float y2,float x3,float y3) | The third-order Bessel curve (X1,y1)(x2,y2) is the offset of the control point from the starting point, and (x3,y3) is the offset of the end point from the starting point | |
| addRect(RecF rect,Path.Direction dir) | Draw a rectangular | |
| addRect(float left,float top,float right,float bottom,Path.Direction dir) | Draw a rectangular | |
| addRoundRect(RectF rect,float rx,float ry,Path.Direction dir) | Draw a rounded rectangle | |
| addRoundRect(float left,float top,float right,float bottom,float rx,float ry,Path.Direction dir) | Draw a rounded rectangle | |
| addRoundRect(RectF rect,float[] radii,Path.Direction dir) | Draw a rounded rectangle | |
| addRoundRect(float left,float top,float right,float bottom,float[] radii,Path.Direction dir) | Draw a rounded rectangle | |
| addArc(RectF oval,float startAngle,float sweepAngle) | Draw arc | |
| addArc(float left,float top,float right,float bottom,float startAngle,float sweepAngle) | Draw arc | |
| arcTo(RectF oval,float startAngle,float sweepAngle,boolean forceMoveTo) | Draw arc | |
| arcTo(RectF oval,float startAngle,float sweepAngle) | ||
| arcTo(float left,float top,float right,float bottom,float startAngle,float sweepAngle,boomean forceMoveTo) | ||
| addCircle(float x,float y,float radius,Path.Direction dir) | A circle | |
| addOval(RectF oval,Path.Direction dir) | Draw the ellipse | |
| addOval(float left,float top,float right,float bottom,Path.Direction dir) | The ellipse | |