Path

java.lang.Object
- ohos.agp.render.Path

```
public class Path
extends Object
```
Represents a multiple-contoured path as a geometric compound of straight line segments, quadratic curves, and cubic curves.
A path can be used by Canvas#drawPath(Path, Paint) in Canvas, and can also be used for clipping.

从以下版本开始:

3

嵌套类概要

嵌套类
限定符和类型	类	说明
`static class`	`Path.AddPathMode`	Enumerates the modes of adding a path to another path.
`static class`	`Path.ArcSize`	Enumerates the modes of adding an arc.
`static class`	`Path.Direction`	Enumerates drawing directions of a `Path` object.
`static class`	`Path.FillType`	Enumerates filling types of a `Path` object.

构造器概要

构造器
构造器说明

Path()
Default constructor used to create a Path instance.

Path(Path path)
A constructor used to create a Path instance with a specified path.

构造器
构造器	说明
`Path()`	Default constructor used to create a `Path` instance.
`Path(Path path)`	A constructor used to create a `Path` instance with a specified path.

方法概要

所有方法实例方法具体方法
限定符和类型	方法	说明
`void`	`addArc(RectFloat rect, float startAngle, float sweepAngle)`	Adds an arc to this `Path` with a specified start angle and sweep angle.
`void`	`addCircle(float xCoor, float yCoor, float radius, Path.Direction direction)`	Adds a circle to this `Path`.
`void`	`addCircle(Point centerPoint, float radius, Path.Direction direction)`	Adds a circle with a specified radius to this `Path` object.
`void`	`addOval(RectFloat rect, Path.Direction direction)`	Adds an oval to this `Path` object.
`void`	`addOval(RectFloat rectFloat, Path.Direction direction, int start)`	Adds an oval to this `Path`.
`void`	`addPath(Path path)`	Adds a specified path to this `Path` object without any connection action.
`void`	`addPath(Path src, float dx, float dy, Path.AddPathMode mode)`	Adds a specified path to this `Path` with an offset.
`void`	`addPath(Path src, Path.AddPathMode mode)`	Adds a specified path to this `Path`.
`void`	`addPath(Path src, Matrix matrix, Path.AddPathMode mode)`	Adds a specified path to this `Path`, transformed by matrix.
`void`	`addRect(float left, float top, float right, float bottom, Path.Direction direction)`	Adds a rectangle to this `Path`.
`void`	`addRect(RectFloat rect, Path.Direction direction)`	Adds a rounded rectangle with a specified corner radius to this `Path` object.
`void`	`addRect(RectFloat rectFloat, Path.Direction direction, int start)`	Adds a rectangle to this `Path` starting with a specified corner.
`void`	`addRoundRect(RectFloat rect, float[] radius, Path.Direction direction)`	Add a round rect with specified corner radius to the `Path`.
`void`	`addRoundRect(RectFloat rectFloat, float xRadius, float yRadius, Path.Direction direction)`	Adds a rounded rectangle to this `Path`.
`void`	`arcTo(float xCoor0, float yCoor0, float xCoor1, float yCoor1, float radius)`	Adds an arc to this `Path`.
`void`	`arcTo(Point radius, float xAxisRotate, Path.ArcSize largeArc, Path.Direction sweep, Point xy)`	Adds an arc implemented by one or more conics.
`void`	`arcTo(Point point0, Point point1, float radius)`	Adds an arc.
`void`	`arcTo(RectFloat rect, float startAngle, float sweepAngle)`	Adds an arc.
`void`	`arcTo(RectFloat rect, float startAngle, float sweepAngle, boolean forceMoveTo)`	Adds an arc.
`void`	`close()`	Connects the start point and end point of the path to form a closed path.
`void`	`computeBounds(RectFloat bounds)`	Computes the bounds of this `Path` object, that is, the minimum enclosing rectangle of this path.
`RectFloat`	`computeTightBounds()`	Computes the tight bounds of this `Path`.
`void`	`conicTo(float xCoor0, float yCoor0, float xCoor1, float yCoor1, float weight)`	Adds a conic curve based on the absolute position.
`void`	`conicTo(Point point0, Point point1, float weight)`	Adds a conic curve.
`boolean`	`conservativelyContainsRect(RectFloat rectFloat)`	Checks whether this `Path` contains a specified rectangle area.
`boolean`	`contains(float xCoor, float yCoor)`	Checks whether a specified point is contained in the area enclosed by this `Path`.
`int`	`countPoints()`	Obtains the number of points in this `Path`.
`int`	`countVerbs()`	Obtains the length of the verb array contained in this `Path`.
`void`	`cubicTo(float x1, float y1, float x2, float y2, float x3, float y3)`	Adds a cubic bezier curve.
`void`	`cubicTo(Point point0, Point point1, Point point2)`	Adds a cubic Bezier curve.
`Path.FillType`	`getFillType()`	Obtains the filling type of this `Path` object.
`boolean`	`getLastPoint(Point point)`	Obtains the last point in the point array of this `Path`.
`void`	`incReserve(int extraPointCount)`	Adds a specified length to the verb and point arrays of this `Path`.
`boolean`	`interpolate(Path ending, float weight, Path out)`	Performs interpolation between this `Path` and a path with the same length of point array.
`boolean`	`isConvex()`	Checks whether this path is convex.
`boolean`	`isEmpty()`	Checks whether this `Path` object is empty.
`boolean`	`isFinite()`	Checks whether the values in the point array in this `Path` are finite.
`boolean`	`isInterpolatable(Path compare)`	Checks whether the interpolation operation is allowed.
`boolean`	`isInverseFillType()`	Checks whether the filling area is outside this `Path`.
`boolean`	`isLastContourClosed()`	Checks whether the last contour added to this `Path` is closed.
`boolean`	`isOval(RectFloat bounds)`	Checks whether this `Path` is identified as an oval or circle.
`boolean`	`isValid()`	Checks whether this `Path` is valid.
`boolean`	`isVolatile()`	Checks whether this `Path` is volatile.
`void`	`lineTo(float xCoor, float yCoor)`	Adds a line to the `Path` object.
`void`	`lineTo(Point point)`	Adds a line from the last point of this `Path` to `point`.
`void`	`moveTo(float xCoor, float yCoor)`	Sets the start point of this path.
`void`	`moveTo(Point point)`	Adds a point to this `Path` as the start point of the next contour.
`void`	`offset(float offsetX, float offsetY)`	Offsets this `Path` by a specified coordinate.
`void`	`offset(float offsetX, float offsetY, Path dst)`	Offsets this `Path` by a specified distance.
`void`	`quadTo(float xCoor0, float yCoor0, float xCoor1, float yCoor1)`	Adds a smooth quadratic bezier curve from the last point of this `Path` to (xCoor1, yCoor1) based on the absolute position.
`void`	`quadTo(Point point0, Point point1)`	Adds a smooth quadratic Bezier curve.
`void`	`rConicTo(float xCoor0, float yCoor0, float xCoor1, float yCoor1, float weight)`	Adds a conic curve based on the relative position.
`void`	`reset()`	Clears the `Path` object.
`void`	`reverseAddPath(Path src)`	Adds a specified path to this `Path` in a reverse direction.
`void`	`rewind()`	Sets this `Path` object to its initial state.
`void`	`rLineTo(float xCoor, float yCoor)`	Adds a straight line segment to this `Path` object.
`void`	`rMoveTo(float dx, float dy)`	Adds a point to this `Path` as the start point of the next contour, the coordinates of which are relative to the last point of this `Path`.
`void`	`rQuadTo(float dx1, float dy1, float dx2, float dy2)`	Adds a smooth quadratic bezier curve based on the relative position.
`void`	`set(Path path)`	Replaces this `Path` object with a specified path.
`void`	`setFillType(Path.FillType fillType)`	Sets the filling type for this `Path` object.
`void`	`setIsVolatile(boolean isVolatile)`	Sets whether this `Path` is volatile.
`void`	`setLastPoint(float dx, float dy)`	Sets the last point for this `Path` based on specified coordinates.
`void`	`setLastPoint(Point point)`	Sets the last point for this `Path`.
`void`	`shrinkToFit()`	Releases the memory unused in the verb and point arrays of this `Path`.
`void`	`swap(Path other)`	Swaps this `Path` for a specified path.
`void`	`toggleInverseFillType()`	Replaces the fill type with its inverse one for this `Path`.
`void`	`transform(Matrix matrix)`	Transforms this `Path` by matrix.
`void`	`transformToNewPath(Matrix matrix, Path newPath)`	Transforms this `Path` to a new one by matrix.
`void`	`updateBoundsCache()`	Updates the bounds cache of this `Path`.

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 构造器详细资料
  - Path
```
public Path()
```
    Default constructor used to create a Path instance.
    
    从以下版本开始:
    
    3
  - Path
```
public Path(Path path)
```
    A constructor used to create a Path instance with a specified path.
    
    参数:
    
    path - Indicates the target path used to create a new path.
    
    从以下版本开始:
    
    3
- 方法详细资料
  - moveTo
```
public void moveTo(float xCoor,
                   float yCoor)
```
    Sets the start point of this path.
    After a path is created, you can call this method to specify its start point. Otherwise, the start point is at the origin (0, 0).
    
    参数:
    
    xCoor - Indicates the X-axis coordinate of the start point.
    
    yCoor - Indicates the Y-axis coordinate of the start point.
    
    从以下版本开始:
    
    3
  - lineTo
```
public void lineTo(float xCoor,
                   float yCoor)
```
    Adds a line to the Path object.
    The line starts from the end point of the path, and ends at the point specified by xCoor and yCoor.
    
    参数:
    
    xCoor - Indicates the X-axis coordinate of the end point of the line to add.
    
    yCoor - Indicates the Y-axis coordinate of the end point of the line to add.
    
    从以下版本开始:
    
    3
  - quadTo
```
public void quadTo(Point point0,
                   Point point1)
```
    Adds a smooth quadratic Bezier curve.
    The new quadratic Bezier curve starts from the current last point of this path, goes towards the control point point0, and ends at point1.
    
    参数:
    
    point0 - Indicates the coordinates of the control point of the quadratic Bezier curve to add.
    
    point1 - Indicates the coordinates of the end point of the quadratic Bezier curve to add.
    
    从以下版本开始:
    
    3
  - cubicTo
```
public void cubicTo(Point point0,
                    Point point1,
                    Point point2)
```
    Adds a cubic Bezier curve.
    The new cubic Bezier curve starts from the current last point of this path and ends at point2 with control points point0 and point1 used to provide directional information.
    
    参数:
    
    point0 - Indicates the coordinates of the first control point of the cubic Bezier curve to add.
    
    point1 - Indicates the coordinates of the second control point of the cubic Bezier curve to add.
    
    point2 - Indicates the coordinates of the end point of the cubic Bezier curve to add.
    
    从以下版本开始:
    
    3
  - cubicTo
```
public void cubicTo(float x1,
                    float y1,
                    float x2,
                    float y2,
                    float x3,
                    float y3)
```
    Adds a cubic bezier curve.
    
    参数:
    
    x1 - Indicates the x-coordinate of the first control point on the curve to add.
    
    y1 - Indicates the y-coordinate of the first control point on the curve to add.
    
    x2 - Indicates the x-coordinate of the second control point on the curve to add.
    
    y2 - Indicates the y-coordinate of the second control point on the curve to add.
    
    x3 - Indicates the x-coordinate of the third control point on the curve to add.
    
    y3 - Indicates the y-coordinate of the third control point on the curve to add.
    
    从以下版本开始:
    
    5
  - arcTo
```
public void arcTo(Point point0,
                  Point point1,
                  float radius)
```
    Adds an arc.
    Assuming that the current last point of this path is a, the arc to add is a part of the circle whose radius is radius and is tangential to line (point0, a) and line (point0, point1), and the start and end points of the arc are the two tangential points. If point a is not the start point of the arc, a line segment from point a to the arc's start point will first be added to this path before the arc is added.
    
    参数:
    
    point0 - Indicates the coordinates of the arc's first control point.
    
    point1 - Indicates the coordinates of the arc's control point controlling the direction to the end point.
    
    radius - Indicates the arc's radius.
    
    从以下版本开始:
    
    3
  - arcTo
```
public void arcTo(RectFloat rect,
                  float startAngle,
                  float sweepAngle)
```
    Adds an arc.
    If the end point of the path is not the start point of the arc, a line segment from the end point of the path to the start point of the arc will be added.
    
    参数:
    
    rect - Indicates the enclosing rectangle of the arc.
    
    startAngle - Indicates the start angle of the arc.
    
    sweepAngle - Indicates the sweep angle of the arc, that is, the central angle of the arc center.
    
    从以下版本开始:
    
    3
  - arcTo
```
public void arcTo(RectFloat rect,
                  float startAngle,
                  float sweepAngle,
                  boolean forceMoveTo)
```
    Adds an arc.
    
    参数:
    
    rect - Indicates the enclosing rectangle of the arc.
    
    startAngle - Indicates the start angle of the arc.
    
    sweepAngle - Indicates the sweep angle of the arc, that is, the central angle of the arc center.
    
    forceMoveTo - Specifies whether to forcibly move the end point of the path to the start point of the arc. If the value is false and the end point of the path is not the start point of the arc, a line segment from the end point of the path to the start point of the arc is added. If the value is true, the specified arc is added to the path.
    
    从以下版本开始:
    
    3
  - conicTo
```
public void conicTo(Point point0,
                    Point point1,
                    float weight)
```
    Adds a conic curve.
    If weight is greater than 1, a hyperbola will be added. If weight is 1, a parabola will be added, and this method has the same effect as Path#quadTo(Point, Point). If weight is less than 1, a part of an ellipse will be added.
    
    参数:
    
    point0 - Indicates the coordinates of the control point of the conic curve to add.
    
    point1 - Indicates the coordinates of the end point of the conic curve to add.
    
    weight - Indicates the weight of the conic curve.
    
    从以下版本开始:
    
    3
  - close
```
public void close()
```
    Connects the start point and end point of the path to form a closed path.
    
    从以下版本开始:
    
    3
  - reset
```
public void reset()
```
    Clears the Path object.
    This method does not retain the internal data structure of this path, but its FillType will not change.
    
    从以下版本开始:
    
    3
  - addPath
```
public void addPath(Path path)
```
    Adds a specified path to this Path object without any connection action.
    For example, if the current path in this Path object has a line segment from p0 to p1, and the path to add has a line segment from p2 to p3, then there will be two line segments (p0, p1) and (p2, p3) in this Path object after this method is called.
    
    参数:
    
    path - Indicates the path to add.
    
    从以下版本开始:
    
    3
  - addArc
```
public void addArc(RectFloat rect,
                   float startAngle,
                   float sweepAngle)
```
    Adds an arc to this Path with a specified start angle and sweep angle.
    The difference between this method and Path#arcTo is that arcTo will connect the current last point of this Path to the start point of the arc if the two points are different.
    
    参数:
    
    rect - Indicates the enclosing rectangle of the arc to add.
    
    startAngle - Indicates the start angle of the arc to add.
    
    sweepAngle - Indicates the sweep angle of the arc to add.
    
    从以下版本开始:
    
    3
  - addCircle
```
public void addCircle(Point centerPoint,
                      float radius,
                      Path.Direction direction)
```
    Adds a circle with a specified radius to this Path object.
    
    参数:
    
    centerPoint - Indicates the coordinate of the circle's center point.
    
    radius - Indicates the circle's radius.
    
    direction - Indicates the circle's drawing direction. For details about available values, see Path.Direction.
    
    从以下版本开始:
    
    3
  - addOval
```
public void addOval(RectFloat rect,
                    Path.Direction direction)
```
    Adds an oval to this Path object.
    
    参数:
    
    rect - Indicates the enclosing rectangle of the oval to add.
    
    direction - Indicates the oval's drawing direction. For details about available values, see Path.Direction.
    
    从以下版本开始:
    
    3
  - isEmpty
```
public boolean isEmpty()
```
    Checks whether this Path object is empty.
    A Path object is considered empty if no data structure is added to it.
    
    返回:
    
    Returns true if this Path is empty; returns false otherwise.
    
    从以下版本开始:
    
    3
  - computeBounds
```
public void computeBounds(RectFloat bounds)
```
    Computes the bounds of this Path object, that is, the minimum enclosing rectangle of this path.
    If this path is empty or there is only one point in the path, the bound is (0, 0, 0, 0).
    
    参数:
    
    bounds - Indicates the object for saving the bounds returned by this path. The initial value is (0, 0, 0, 0).
    
    从以下版本开始:
    
    3
  - addRect
```
public void addRect(RectFloat rect,
                    Path.Direction direction)
```
    Adds a rounded rectangle with a specified corner radius to this Path object.
    
    参数:
    
    rect - Indicates the position and size of the rounded rectangle to add.
    
    direction - Indicates the rectangle's drawing direction. For details about available values, see Path.Direction.
    
    从以下版本开始:
    
    3
  - addRoundRect
```
public void addRoundRect(RectFloat rect,
                         float[] radius,
                         Path.Direction direction)
```
    Add a round rect with specified corner radius to the Path.
    
    参数:
    
    rect - Indicates the position and size of the rounded rectangle to add.
    
    radius - Indicates the corner radius of the rounded rectangle, the radius array length is 8.
    
    direction - Indicates the rounded rectangle's drawing direction. For details about available values, see Path.Direction.
    
    从以下版本开始:
    
    3
  - rLineTo
```
public void rLineTo(float xCoor,
                    float yCoor)
```
    Adds a straight line segment to this Path object.
    The difference between this method and Path#lineTo is that lineTo directly connects the last point (px, py) and the point (xCoor, yCoor) of the path, but rLinetTo adds a straight line segment from the point (px, py) to (xCoor+px, yCoor+py).
    
    参数:
    
    xCoor - Indicates the X-axis coordinate of the end point of the line to add, relative to (px, py).
    
    yCoor - Indicates the Y-axis coordinate of the end point of the line to add, relative to (px, py).
    
    从以下版本开始:
    
    3
  - offset
```
public void offset(float offsetX,
                   float offsetY)
```
    Offsets this Path by a specified coordinate.
    
    参数:
    
    offsetX - Indicates the offset added to the X-axis, in pixels.
    
    offsetY - Indicates the offset added to the Y-axis, in pixels.
    
    从以下版本开始:
    
    3
  - rewind
```
public void rewind()
```
    Sets this Path object to its initial state.
    This method is different from Path#reset. The reset method clears only the original data structure of the path and does not change the filling type, and this method resets only the filling type of the path to the default value WINDING_ORDER and keeps the original data structure. The rewinding speed varies with data structures.
    
    从以下版本开始:
    
    3
  - transform
```
public void transform(Matrix matrix)
```
    Transforms this Path by matrix.
    
    参数:
    
    matrix - Indicates the matrix used to transform this path.
    
    从以下版本开始:
    
    3
  - transformToNewPath
```
public void transformToNewPath(Matrix matrix,
                               Path newPath)
```
    Transforms this Path to a new one by matrix.
    
    参数:
    
    matrix - Indicates the matrix used to transform this Path.
    
    newPath - Indicates the new path. If this parameter is null, then this Path is modified.
    
    从以下版本开始:
    
    3
  - set
```
public void set(Path path)
```
    Replaces this Path object with a specified path.
    
    参数:
    
    path - Indicates the target Path object used to replace this path.
    
    从以下版本开始:
    
    3
  - setFillType
```
public void setFillType(Path.FillType fillType)
```
    Sets the filling type for this Path object.
    The filling type affects the display effect of a path.
    
    参数:
    
    fillType - Indicates the new filling type to be set. The default value is WINDING_ORDER. For details about available values, see FillType.
    
    从以下版本开始:
    
    3
  - getFillType
```
public Path.FillType getFillType()
```
    Obtains the filling type of this Path object.
    
    返回:
    
    Returns the filling type of this path.
    
    从以下版本开始:
    
    3
  - setLastPoint
```
public void setLastPoint(float dx,
                         float dy)
```
    Sets the last point for this Path based on specified coordinates.
    
    参数:
    
    dx - Indicates the x-coordinate of the last point to set.
    
    dy - Indicates the y-coordinate of the last point to set.
    
    从以下版本开始:
    
    4
  - isConvex
```
public boolean isConvex()
```
    Checks whether this path is convex.
    
    返回:
    
    Returns true if this path is convex; returns false otherwise.
    
    从以下版本开始:
    
    4
  - isInterpolatable
```
public boolean isInterpolatable(Path compare)
```
    Checks whether the interpolation operation is allowed.
    Interpolation can be performed only when the parameters of this Path are equal to those of compare. The parameters include the verb array and weight (if a cone is added) of paths.
    
    参数:
    
    compare - Indicates the specified path used for comparison.
    
    返回:
    
    Returns true if the parameters of this Path are equal to those of the specified path; returns false otherwise.
    
    从以下版本开始:
    
    4
  - interpolate
```
public boolean interpolate(Path ending,
                           float weight,
                           Path out)
```
    Performs interpolation between this Path and a path with the same length of point array.
    Generally, isInterpolatable(ohos.agp.render.Path) is called first to check whether the interpolation operation is allowed.
    
    参数:
    
    ending - Indicates the path whose length of point array is compared with that of this Path.
    
    weight - Indicates the weight of the point array of this Path.
    
    out - Used to save the interpolation result.
    
    返回:
    
    Returns true if the point array length of this Path is the same as that of ending; returns false otherwise (out remains unchanged).
    
    从以下版本开始:
    
    4
  - isInverseFillType
```
public boolean isInverseFillType()
```
    Checks whether the filling area is outside this Path.
    
    返回:
    
    Returns true if the filling area is outside this Path, that is, the value of FillType for this Path is INVERSE_WINDING or INVERSE_EVEN_ODD; returns false otherwise.
    
    从以下版本开始:
    
    4
  - toggleInverseFillType
```
public void toggleInverseFillType()
```
    Replaces the fill type with its inverse one for this Path.
    
    从以下版本开始:
    
    4
  - isOval
```
public boolean isOval(RectFloat bounds)
```
    Checks whether this Path is identified as an oval or circle.
    
    参数:
    
    bounds - Used to save the bounds of the minimum rectangle holding the oval or circle.
    
    返回:
    
    Returns true if this Path is identified as an oval or circle; returns false otherwise (bounds remains unchanged).
    
    从以下版本开始:
    
    4
  - isLastContourClosed
```
public boolean isLastContourClosed()
```
    Checks whether the last contour added to this Path is closed.
    A path may contain multiple contours. If the last operation is close(), the last contour added to this Path is considered to be closed.
    
    返回:
    
    Returns true if the last contour added to this Path is closed, that is, the last value of the verb array is CLOSE_VERB; returns false otherwise.
    
    从以下版本开始:
    
    4
  - isFinite
```
public boolean isFinite()
```
    Checks whether the values in the point array in this Path are finite.
    
    返回:
    
    Returns true if all values in the point array are finite (between positive and negative 3.402823466e+38f); returns false otherwise.
    
    从以下版本开始:
    
    4
  - isVolatile
```
public boolean isVolatile()
```
    Checks whether this Path is volatile.
    If this Path is modified after being drawn, the path is considered to be volatile. By default, a path is set nonvolatile for speeding up repeated drawings.
    
    返回:
    
    Returns true if this Path is modified after being drawn; returns false otherwise.
    
    从以下版本开始:
    
    4
  - setIsVolatile
```
public void setIsVolatile(boolean isVolatile)
```
    Sets whether this Path is volatile.
    
    参数:
    
    isVolatile - Specifies whether this Path is volatile. The value true indicates this Path is volatile, and false indicates the opposite case.
    
    从以下版本开始:
    
    4
  - countPoints
```
public int countPoints()
```
    Obtains the number of points in this Path.
    
    返回:
    
    Returns the number of points.
    
    从以下版本开始:
    
    4
  - swap
```
public void swap(Path other)
```
    Swaps this Path for a specified path.
    
    参数:
    
    other - Indicates the specified path.
    
    从以下版本开始:
    
    4
  - computeTightBounds
```
public RectFloat computeTightBounds()
```
    Computes the tight bounds of this Path.
    
    返回:
    
    Returns the tight bounds.
    
    从以下版本开始:
    
    4
  - conservativelyContainsRect
```
public boolean conservativelyContainsRect(RectFloat rectFloat)
```
    Checks whether this Path contains a specified rectangle area.
    The item to be checked may be a line, point, or rectangle.
    
    参数:
    
    rectFloat - Indicates the specified rectangle area.
    
    返回:
    
    Returns true if this Path contains the specified rectangle area; returns false otherwise.
    
    从以下版本开始:
    
    4
  - incReserve
```
public void incReserve(int extraPointCount)
```
    Adds a specified length to the verb and point arrays of this Path.
    This method helps improve performance and use less memory by reducing the number and size of allocations when creating a path.
    
    参数:
    
    extraPointCount - Indicates the specified length to add.
    
    从以下版本开始:
    
    4
  - shrinkToFit
```
public void shrinkToFit()
```
    Releases the memory unused in the verb and point arrays of this Path.
    This method allows this Path to reduce its heap overhead.
    
    从以下版本开始:
    
    4
  - moveTo
```
public void moveTo(Point point)
```
    Adds a point to this Path as the start point of the next contour.
    
    参数:
    
    point - Indicates the point to add.
    
    从以下版本开始:
    
    4
  - rMoveTo
```
public void rMoveTo(float dx,
                    float dy)
```
    Adds a point to this Path as the start point of the next contour, the coordinates of which are relative to the last point of this Path.
    
    参数:
    
    dx - Indicates the x-axis offset relative to the last point of this Path.
    
    dy - Indicates the y-axis offset relative to the last point of this Path.
    
    从以下版本开始:
    
    4
  - lineTo
```
public void lineTo(Point point)
```
    Adds a line from the last point of this Path to point.
    
    参数:
    
    point - Indicates the last point of the line to add.
    
    从以下版本开始:
    
    4
  - quadTo
```
public void quadTo(float xCoor0,
                   float yCoor0,
                   float xCoor1,
                   float yCoor1)
```
    Adds a smooth quadratic bezier curve from the last point of this Path to (xCoor1, yCoor1) based on the absolute position.
    
    参数:
    
    xCoor0 - Indicates the x-coordinate of the quadratic bezier curve's control point.
    
    yCoor0 - Indicates the y-coordinate of the quadratic bezier curve's control point.
    
    xCoor1 - Indicates the x-coordinate of the quadratic bezier curve's last point.
    
    yCoor1 - Indicates the y-coordinate of the quadratic bezier curve's last point.
    
    从以下版本开始:
    
    4
  - rQuadTo
```
public void rQuadTo(float dx1,
                    float dy1,
                    float dx2,
                    float dy2)
```
    Adds a smooth quadratic bezier curve based on the relative position.
    
    参数:
    
    dx1 - Indicates the x-axis offset of the quadratic bezier curve's control point.
    
    dy1 - Indicates the y-axis offset of the quadratic bezier curve's control point.
    
    dx2 - Indicates the x-axis offset of the quadratic bezier curve's last point.
    
    dy2 - Indicates the y-axis offset of the quadratic bezier curve's last point.
    
    从以下版本开始:
    
    4
  - conicTo
```
public void conicTo(float xCoor0,
                    float yCoor0,
                    float xCoor1,
                    float yCoor1,
                    float weight)
```
    Adds a conic curve based on the absolute position.
    If weight is greater than 1, the conic is a hyperbola. If weight is 1, the conic is a parabola and this method is equivalent to quadTo(ohos.agp.utils.Point, ohos.agp.utils.Point). If weight is less than 1, the conic is a part of an oval.
    
    参数:
    
    xCoor0 - Indicates the x-coordinate of the conic curve's control point.
    
    yCoor0 - Indicates the y-coordinate of the conic curve's control point.
    
    xCoor1 - Indicates the x-coordinate of the conic curve's last point.
    
    yCoor1 - Indicates the y-coordinate of the conic curve's last point.
    
    weight - Indicates the weight of the conic curve.
    
    从以下版本开始:
    
    4
  - rConicTo
```
public void rConicTo(float xCoor0,
                     float yCoor0,
                     float xCoor1,
                     float yCoor1,
                     float weight)
```
    Adds a conic curve based on the relative position.
    
    参数:
    
    xCoor0 - Indicates the x-coordinate of the conic curve's control point.
    
    yCoor0 - Indicates the y-coordinate of the conic curve's control point.
    
    xCoor1 - Indicates the x-axis offset of the conic curve's last point.
    
    yCoor1 - Indicates the y-axis offset of the conic curve's last point.
    
    weight - Indicates the weight of the conic curve.
    
    从以下版本开始:
    
    4
  - arcTo
```
public void arcTo(float xCoor0,
                  float yCoor0,
                  float xCoor1,
                  float yCoor1,
                  float radius)
```
    Adds an arc to this Path.
    Assume that the last point of this Path is a. The arc to add is a part of an inscribed circle whose radius is radius and two tangent lines are determined by ((xCoor0, yCoor0), a) and ((xCoor0, yCoor0), xCoor1, yCoor), respectively. The tangent points are the arc's start and last point, respectively. If the start point of the arc to add is not the current path's last point a, then a line from a to the start point of the arc should be added first.
    
    参数:
    
    xCoor0 - Indicates the x-coordinate of the arc's control point.
    
    yCoor0 - Indicates the y-coordinate of the arc's control point.
    
    xCoor1 - Indicates the x-coordinate of the point controlling the arc's last point.
    
    yCoor1 - Indicates the y-coordinate of the point controlling the arc's last point.
    
    radius - Indicates the arc's radius.
    
    从以下版本开始:
    
    4
  - arcTo
```
public void arcTo(Point radius,
                  float xAxisRotate,
                  Path.ArcSize largeArc,
                  Path.Direction sweep,
                  Point xy)
```
    Adds an arc implemented by one or more conics.
    You can rotate an oval of the specified radius by xAxisRotate degrees, and then scale it around xy (coordinates of the arc's last point), and finally add an arc from the last point of this Path to xy.
    
    参数:
    
    radius - Indicates the x-axis and y-axis radiuses of the oval.
    
    xAxisRotate - Indicates the rotation angle of the oval of a specified size.
    
    largeArc - Indicates the specified arc of the oval.
    
    sweep - Indicates the sweep mode of the arc to add.
    
    xy - Indicates the coordinates of the arc's last point.
    
    从以下版本开始:
    
    4
  - addRect
```
public void addRect(RectFloat rectFloat,
                    Path.Direction direction,
                    int start)
```
    Adds a rectangle to this Path starting with a specified corner.
    In actual implementation, the coordinates of the rectangle's four corners are added to the point array of this Path. You can specify the corner to be first drawn based on start.
    
    参数:
    
    rectFloat - Indicates the rectangle to add.
    
    direction - Indicates the rectangle's drawing direction, as enumerated in Direction.
    
    start - Indicates the rectangle's corner to be first drawn.
    
    从以下版本开始:
    
    4
  - addRect
```
public void addRect(float left,
                    float top,
                    float right,
                    float bottom,
                    Path.Direction direction)
```
    Adds a rectangle to this Path.
    
    参数:
    
    left - Indicates the x-coordinate of the rectangle's upper left corner.
    
    top - Indicates the y-coordinate of the rectangle's upper left corner.
    
    right - Indicates the x-coordinate of the rectangle's lower right corner.
    
    bottom - Indicates the x-coordinate of the rectangle's lower right corner.
    
    direction - Indicates the rectangle's drawing direction, as enumerated in Direction.
    
    从以下版本开始:
    
    4
  - addOval
```
public void addOval(RectFloat rectFloat,
                    Path.Direction direction,
                    int start)
```
    Adds an oval to this Path.
    
    参数:
    
    rectFloat - Indicates the external rectangle holding the oval.
    
    direction - Indicates the oval's drawing direction, as enumerated in Direction.
    
    start - Indicates the index of the oval's start point. The default value is rectFloat.right, (rectFloat.bottom + rectFloat.top) / 2 representing the oval's right boundary point.
    
    从以下版本开始:
    
    4
  - addCircle
```
public void addCircle(float xCoor,
                      float yCoor,
                      float radius,
                      Path.Direction direction)
```
    Adds a circle to this Path.
    
    参数:
    
    xCoor - Indicates the x-coordinate of the circle's center point.
    
    yCoor - Indicates the y-coordinate of the circle's center point.
    
    radius - Indicates the circle's radius.
    
    direction - Indicates the rectangle's drawing direction, as enumerated in Direction.
    
    从以下版本开始:
    
    4
  - addRoundRect
```
public void addRoundRect(RectFloat rectFloat,
                         float xRadius,
                         float yRadius,
                         Path.Direction direction)
```
    Adds a rounded rectangle to this Path.
    
    参数:
    
    rectFloat - Indicates the position and size of the rounded rectangle.
    
    xRadius - Indicates the radius of the four rounded corners in the x-axis direction.
    
    yRadius - Indicates the radius of the four rounded corners in the y-axis direction.
    
    direction - Indicates the rectangle's drawing direction, as enumerated in Direction.
    
    从以下版本开始:
    
    4
  - addPath
```
public void addPath(Path src,
                    Path.AddPathMode mode)
```
    Adds a specified path to this Path.
    The mode of adding a path can be AddPathMode#APPEND_ADD_PATH_MODE or AddPathMode#EXTEND_ADD_PATH_MODE. The former one indicates no connection between any points, and the latter one indicates that a straight line is added between the last point of this Path and the start point of src.
    
    参数:
    
    src - Indicates the specified path to add.
    
    mode - Indicates the mode of adding a path.
    
    从以下版本开始:
    
    4
  - addPath
```
public void addPath(Path src,
                    float dx,
                    float dy,
                    Path.AddPathMode mode)
```
    Adds a specified path to this Path with an offset.
    The mode of adding a path can be AddPathMode#APPEND_ADD_PATH_MODE or AddPathMode#EXTEND_ADD_PATH_MODE. The former one indicates no connection between any points, and the latter one indicates that a straight line is added between the last point of this Path and the start point of src.
    
    参数:
    
    src - Indicates the specified path to add.
    
    dx - Indicates the horizontal offset of the specified path.
    
    dy - Indicates the vertical offset of the specified path.
    
    mode - Indicates the mode of adding a path.
    
    从以下版本开始:
    
    4
  - addPath
```
public void addPath(Path src,
                    Matrix matrix,
                    Path.AddPathMode mode)
```
    Adds a specified path to this Path, transformed by matrix.
    The mode of adding a path can be AddPathMode#APPEND_ADD_PATH_MODE or AddPathMode#EXTEND_ADD_PATH_MODE. The former one indicates no connection between any points, and the latter one indicates that a straight line is added between the last point of this Path and the start point of src.
    
    参数:
    
    src - Indicates the specified path to add.
    
    matrix - Indicates the matrix used to transform the specified path.
    
    mode - Indicates the mode of adding a path.
    
    从以下版本开始:
    
    4
  - reverseAddPath
```
public void reverseAddPath(Path src)
```
    Adds a specified path to this Path in a reverse direction.
    
    参数:
    
    src - Indicates the specified path to add.
    
    从以下版本开始:
    
    4
  - offset
```
public void offset(float offsetX,
                   float offsetY,
                   Path dst)
```
    Offsets this Path by a specified distance.
    
    参数:
    
    offsetX - Indicates the horizontal offset of this Path.
    
    offsetY - Indicates the vertical offset of this Path.
    
    dst - Indicates the destination path after the offset.
    
    从以下版本开始:
    
    4
  - getLastPoint
```
public boolean getLastPoint(Point point)
```
    Obtains the last point in the point array of this Path.
    
    参数:
    
    point - Indicates the obtained point. If the operation fails, this parameter is null.
    
    返回:
    
    Returns true if the last point is obtained; returns false otherwise.
    
    从以下版本开始:
    
    4
  - setLastPoint
```
public void setLastPoint(Point point)
```
    Sets the last point for this Path.
    
    参数:
    
    point - Indicates the coordinates of the last point to set.
    
    从以下版本开始:
    
    4
  - contains
```
public boolean contains(float xCoor,
                        float yCoor)
```
    Checks whether a specified point is contained in the area enclosed by this Path.
    
    参数:
    
    xCoor - Indicates the x-coordinate of the point.
    
    yCoor - Indicates the y-coordinate of the point.
    
    返回:
    
    Returns true if the specified point is contained in the area enclosed by this Path; returns false otherwise.
    
    从以下版本开始:
    
    4
  - isValid
```
public boolean isValid()
```
    Checks whether this Path is valid.
    A path is considered to be valid if the data value regarding this Path is within the specified range, the storage and dimension of the point array are matched and it is so with the verb array.
    
    返回:
    
    Returns true if this Path is valid; returns false otherwise.
    
    从以下版本开始:
    
    4
  - countVerbs
```
public int countVerbs()
```
    Obtains the length of the verb array contained in this Path.
    A verb array is an internal structure of a path. The array stores the points in the point array for performing operations. For example, a point array includes two points a and b, which are described as Move_Verb and Line_Verb, respectively in the verb array, then the drawing result is a straight line from a to b.
    
    返回:
    
    Returns the verb array length.
    
    从以下版本开始:
    
    4
  - updateBoundsCache
```
public void updateBoundsCache()
```
    Updates the bounds cache of this Path.
    You can use this method to improve the efficiency of calculating path bounds.
    
    从以下版本开始:
    
    4

类 Path

嵌套类概要

构造器概要

方法概要

从类继承的方法 java.lang.Object

构造器详细资料

Path

Path

方法详细资料

moveTo

lineTo

quadTo

cubicTo

cubicTo

arcTo

arcTo

arcTo

conicTo

close

reset

addPath

addArc

addCircle

addOval

isEmpty

computeBounds

addRect

addRoundRect

rLineTo

offset

rewind

transform

transformToNewPath

set

setFillType

getFillType

setLastPoint

isConvex

isInterpolatable

interpolate

isInverseFillType

toggleInverseFillType

isOval

isLastContourClosed

isFinite

isVolatile

setIsVolatile

countPoints

swap

computeTightBounds

conservativelyContainsRect

incReserve

shrinkToFit

moveTo

rMoveTo

lineTo

quadTo

rQuadTo

conicTo

rConicTo

arcTo

arcTo

addRect

addRect

addOval

addCircle

addRoundRect

addPath

addPath

addPath

reverseAddPath

offset

getLastPoint

setLastPoint

contains

isValid

countVerbs

updateBoundsCache