Class ChartMath

Provides constants and static methods for mathematical functions.

Inheritance

System.Object

ChartMath

Inherited Members

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.ToString()

Namespace: Syncfusion.Windows.Forms.Chart

Assembly: Syncfusion.Chart.Base.dll

Syntax

public static class ChartMath

Fields

DblPI

A double PI.

Declaration

public const double DblPI = 6.2831853071795862

Field Value

Type
System.Double

Epsilon

A the minimal value of System.Double (magical number).

Declaration

public const double Epsilon = 1E-05

Field Value

Type
System.Double

HlfPI

A half of PI.

Declaration

public const double HlfPI = 1.5707963267948966

Field Value

Type
System.Double

ToDegrees

A ratio of degrees to radials.

Declaration

public const double ToDegrees = 57.295779513082323

Field Value

Type
System.Double

ToRadians

A ratio of radials to degrees.

Declaration

public const double ToRadians = 0.017453292519943295

Field Value

Type
System.Double

Methods

AddPoint(PointF, Size)

Translates a given System.Drawing.PointF by a specified System.Drawing.Size.

Declaration

public static PointF AddPoint(PointF pt, Size sz)

Parameters

Type	Name	Description
System.Drawing.PointF	pt	The point.
System.Drawing.Size	sz	The size.

Returns

Type
System.Drawing.PointF

AddPoint(PointF, SizeF)

Translates a given System.Drawing.PointF by a specified System.Drawing.SizeF.

Declaration

public static PointF AddPoint(PointF pt, SizeF sz)

Parameters

Type	Name	Description
System.Drawing.PointF	pt	The point.
System.Drawing.SizeF	sz	The size.

Returns

Type
System.Drawing.PointF

Bisection(ChartMath.DoubleFunc, Double, Double, Double, Int32)

Computes the bisections by the specified function.

Declaration

public static double Bisection(ChartMath.DoubleFunc fnc, double x1, double x2, double xAccuracy, int maxIterationCount)

Parameters

Type	Name	Description
ChartMath.DoubleFunc	fnc	The function handler.
System.Double	x1	The x1.
System.Double	x2	The x2.
System.Double	xAccuracy	The x accuracy.
System.Int32	maxIterationCount	The max iteration count.

Returns

Type
System.Double

CenterRotatedRectangleBounds(RectangleF, Double)

Compute the bounds of center rotated rectangle.

Declaration

public static RectangleF CenterRotatedRectangleBounds(RectangleF r, double angle)

Parameters

Type	Name	Description
System.Drawing.RectangleF	r	The rectangle.
System.Double	angle	The rotation angle.

Returns

Type
System.Drawing.RectangleF

CorrectRect(RectangleF)

Corrects the size of the specified rectangle.

Declaration

public static RectangleF CorrectRect(RectangleF rect)

Parameters

Type	Name	Description
System.Drawing.RectangleF	rect	The rect.

Returns

Type
System.Drawing.RectangleF

CorrectRect(Single, Single, Single, Single)

Creates the System.Drawing.RectangleF by the specified points and corrects the size.

Declaration

public static RectangleF CorrectRect(float x1, float y1, float x2, float y2)

Parameters

Type	Name	Description
System.Single	x1	The x1.
System.Single	y1	The y1.
System.Single	x2	The x2.
System.Single	y2	The y2.

Returns

Type
System.Drawing.RectangleF

Determinant(PointF, PointF)

Computes the determinant by the specified matrix.

Declaration

public static float Determinant(PointF p1, PointF p2)

Parameters

Type	Name	Description
System.Drawing.PointF	p1	The first row of matrix.
System.Drawing.PointF	p2	The second row of matrix.

Returns

Type
System.Single

DistanceBetweenPoints(PointF, PointF)

Calculates distance between two points.

Declaration

public static float DistanceBetweenPoints(PointF p1, PointF p2)

Parameters

Type	Name	Description
System.Drawing.PointF	p1	The point to calculate distance from.
System.Drawing.PointF	p2	The point to calculate distance to.

Returns

Type	Description
System.Single	Distance between to point.

GetCenter(RectangleF)

Returns the center of specified rectangle.

Declaration

public static PointF GetCenter(RectangleF rect)

Parameters

Type	Name	Description
System.Drawing.RectangleF	rect	The rect.

Returns

Type
System.Drawing.PointF

GetNormal(Vector3D, Vector3D, Vector3D)

Gets the normal.

Declaration

public static Vector3D GetNormal(Vector3D v1, Vector3D v2, Vector3D v3)

Parameters

Type	Name	Description
Vector3D	v1	The start point of plane.
Vector3D	v2	The v2.
Vector3D	v3	The v3.

Returns

Type
Vector3D

GetPointByAngle(RectangleF, Double, Boolean)

Gets the point by angle.

Declaration

public static PointF GetPointByAngle(RectangleF rect, double angle, bool isCircle)

Parameters

Type	Name	Description
System.Drawing.RectangleF	rect	The rect.
System.Double	angle	The angle.
System.Boolean	isCircle	if set to true [is circle].

Returns

Type
System.Drawing.PointF

GetRadius(RectangleF)

Returns the half size of rectangle.

Declaration

public static SizeF GetRadius(RectangleF rect)

Parameters

Type	Name	Description
System.Drawing.RectangleF	rect

Returns

Type
System.Drawing.SizeF

GetRectByCenter(PointF, SizeF)

Creates the System.Drawing.RectangleF by specified center and radius.

Declaration

public static RectangleF GetRectByCenter(PointF center, SizeF radius)

Parameters

Type	Name	Description
System.Drawing.PointF	center	The center.
System.Drawing.SizeF	radius	The radius.

Returns

Type
System.Drawing.RectangleF

GetTwoClosestPoints(Double[], Double, out Int32, out Int32)

Gets the indices of two closest points by the specified value.

Declaration

public static void GetTwoClosestPoints(double[] xs, double point, out int index1, out int index2)

Parameters

Type	Name	Description
System.Double[]	xs	The array of double.
System.Double	point	The specified value.
System.Int32	index1	The index of first point.
System.Int32	index2	The index of second point.

LeftCenterRotatedRectangleBounds(RectangleF, Double)

Compute the bounds of left-center rotated rectangle.

Declaration

public static RectangleF LeftCenterRotatedRectangleBounds(RectangleF r, double angle)

Parameters

Type	Name	Description
System.Drawing.RectangleF	r	The rectangle.
System.Double	angle	The rotation angle.

Returns

Type
System.Drawing.RectangleF

LineSegmentIntersectionPoint(PointF, PointF, PointF, PointF)

Computes the point of lines intersection.

Declaration

public static PointF LineSegmentIntersectionPoint(PointF a, PointF b, PointF c, PointF d)

Parameters

Type	Name	Description
System.Drawing.PointF	a	The start point of first line.
System.Drawing.PointF	b	The end point of first line.
System.Drawing.PointF	c	The start point of second line.
System.Drawing.PointF	d	The end point of second line.

Returns

Type
System.Drawing.PointF

Max(Double[])

Returns the maximal value from array.

Declaration

public static double Max(double[] values)

Parameters

Type	Name	Description
System.Double[]	values	The array of values.

Returns

Type	Description
System.Double	The maximal value.

Min(Double[])

Returns the minimal value from array.

Declaration

public static double Min(double[] values)

Parameters

Type	Name	Description
System.Double[]	values	The array of values.

Returns

Type	Description
System.Double	The minimal value.

MinMax(Double, Double, Double)

Checks whether specified value is inside of specified range.

Declaration

public static double MinMax(double value, double min, double max)

Parameters

Type	Name	Description
System.Double	value	The value.
System.Double	min	The minimal value.
System.Double	max	The maximal value.

Returns

Type
System.Double

MinMax(Double, Double, out Double, out Double)

Mins the max.

Declaration

public static void MinMax(double value1, double value2, out double min, out double max)

Parameters

Type	Name	Description
System.Double	value1	The value1.
System.Double	value2	The value2.
System.Double	min	The min.
System.Double	max	The max.

MinMax(Int32, Int32, Int32)

Checks whether specified value is inside of specified range.

Declaration

public static int MinMax(int value, int min, int max)

Parameters

Type	Name	Description
System.Int32	value	The value.
System.Int32	min	The minimal value.
System.Int32	max	The maximal value.

Returns

Type
System.Int32

MinMax(Single, Single, Single)

Checks whether specified value is inside of specified range.

Declaration

public static float MinMax(float value, float min, float max)

Parameters

Type	Name	Description
System.Single	value	The value.
System.Single	min	The minimal value.
System.Single	max	The maximal value.

Returns

Type
System.Single

RectangleIntersectsWithLine(RectangleF, PointF, PointF)

Indicates whether specified rectangle is intersects with the line.

Declaration

public static bool RectangleIntersectsWithLine(RectangleF r, PointF a, PointF b)

Parameters

Type	Name	Description
System.Drawing.RectangleF	r	The rectangle.
System.Drawing.PointF	a	The start of line.
System.Drawing.PointF	b	The end of line.

Returns

Type
System.Boolean

RectanlgeIntersectsWithLine(RectangleF, PointF, PointF)

Indicates whether specified rectangle is intersects with the line.

Declaration

[Obsolete("Use RectangleIntersectsWithLine")]
public static bool RectanlgeIntersectsWithLine(RectangleF r, PointF a, PointF b)

Parameters

Type	Name	Description
System.Drawing.RectangleF	r	The rectangle.
System.Drawing.PointF	a	The start of line.
System.Drawing.PointF	b	The end of line.

Returns

Type
System.Boolean

RotatedRectangleBounds(RectangleF, Double)

Compute the bounds of rotated rectangle.

Declaration

public static RectangleF RotatedRectangleBounds(RectangleF r, double angle)

Parameters

Type	Name	Description
System.Drawing.RectangleF	r	The rectangle.
System.Double	angle	The rotation angle.

Returns

Type
System.Drawing.RectangleF

Round(Double, Double)

Rounds the specified value.

Declaration

public static double Round(double value, double div)

Parameters

Type	Name	Description
System.Double	value	The value to round.
System.Double	div	The div.

Returns

Type
System.Double

Round(Double, Double, Boolean)

Rounds the specified value.

Declaration

public static double Round(double value, double div, bool up)

Parameters

Type	Name	Description
System.Double	value	The value.
System.Double	div	The div.
System.Boolean	up	if set to true value will be rounded to greater value.

Returns

Type
System.Double

SmartBisection(ChartMath.DoubleFunc, Double, Double, Double, Int32, Int32)

Computes the bisections by the specified function.

Declaration

public static double SmartBisection(ChartMath.DoubleFunc fnc, double x1, double x2, double xAccuracy, int maxIterationCount, int tabulCount)

Parameters

Type	Name	Description
ChartMath.DoubleFunc	fnc	The function handler.
System.Double	x1	The x1.
System.Double	x2	The x2.
System.Double	xAccuracy	The x accuracy.
System.Int32	maxIterationCount	The max iteration count.
System.Int32	tabulCount	The table count.

Returns

Type
System.Double