BeginUpdate and EndUpdate work to defer OnChanged events while a path is being modified. Use the BeginUpdate method to defer OnChanged events until an equal number of EndUpdate methods have been called.

protected method

CalculateDistances

Calculates the distance to every point in the path. Returns the length of the path.

Note
It is recommended to Flatten the path before calling this method.

public method

Clone

Creates a copy of the path data object.

Note
It is the responsibility of the calling routine to free the new TRSPathData object.

public method

DrawPath(TCanvas,Single)

Draws a path on the current TCanvas.

DrawPath draw a TRSPathData, with the current Stroke or Pen.

If the path is empty, DrawPath does nothing. In this case, DrawPath does not raise any errors.

public method

EndUpdate

Reenables OnChanged events after BeginUpdate has been called.

public method

FillPath(TCanvas,Single)

Fills a path on the current TCanvas.

FillPath fills a TRSPathData, with the current Stroke or Pen.

If the path is empty, FillPath does nothing. In this case, FillPath does not raise any errors.

public method

GetLength

Returns the length of the path.

Note
It is recommended to Flatten the path before calling this method.

protected method

PathChange(TObject)

Represents method PathChange(TObject).

public method

PointInPath(Single,Single)

Overloaded. Returns true if the point specified by X and Y is inside the path

public method

PointInPath(TRSPoint)

Overloaded. Returns true if the specified point is inside the path

public method

PointInPathOutline(Single,Single,Single)

Overloaded. Returns true if the point specified by X and Y is inside the path outline (i.e., the stroke of the path). The StrokeWidth specifies the width of the path outline.

public method

PointInPathOutline(TRSPoint,Single)

Overloaded. Returns true if the specified point is inside the path outline (i.e., the stroke of the path). The StrokeWidth specifies the width of the path outline.

public method

SmoothCurveTo(TRSPoint,TRSPoint)

Appends a smooth curve to the current TRSPathData.

The smooth curve is defined by 4 points:

• A start point--the last point of the TPathData.

• Two control points. If Points has more than two items, the first control point coincides with the start point of the curve, otherwise it is equal to the second control point. The Control2 parameter specifies the second control point.

• An end point, specified by the EndPoint parameter.

SmoothCurveTo adds the control points and the end point of the curve to the Points array. The added points are of type ppCurveTo.

To move the start point of the curve, call the MoveTo or MoveToRel method before calling SmoothCurveTo.

To find the end point of the TRSPathData, call the LastPoint method.

public method

SmoothCurveToRel(TRSPoint,TRSPoint)

Appends a smooth curve to the current TRSPathData.

The smooth curve is defined by 4 points that depend on the last point of the current TRSPathData.

The start point of the curve is the end point of the TRSPathData.

If Points has more than 2 items, the first control point coincides with the start point, otherwise it is equal to the second control point.

The ControlPoint2 parameter's coordinates specify the distances to the last point of the current TRSPathData, on each axis, for the second control point of the curve.

The EndPoint parameter's coordinates specify the distances to the last point of the current TRSPathData, on each axis, for the end point of the curve.

SmoothCurveToRel adds the control points and the end point of the curve to the Points array. The coordinates for each point are equal to the sum between the coordinates of the last point of the current TRSPathData and the coordinates of the corresponding points specified by the parameters. The added points are of type ppCurveTo.

To move the start point of the curve, call the MoveTo or MoveToRel method before calling SmoothCurveToRel.

To find the end point of the TRSPathData, call the LastPoint method.

public method

SplitDataByLength(Integer,String)

Returns the string representation of the path data. The string representation is split every Len characters using the specified delimiter.

SplitDataByLength returns a string that can be multiple lines of no more than Len length.

public method

ToPolygons

Converts the path data into an array of polygons.

Note
It is recommended that Flatten is called before calling ToPolygons

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