PointExtensionMethods

public static class PointExtensionMethods
Extension methods for Eto.Drawing.Point and Eto.Drawing.PointF

Methods

Angle

#Example
public static float Angle(this SizeF size)
Gets the angle (in degrees, measured anti-clockwise) of a size, assuming it represents a vector.
Parameters:
size (SizeF)

Average

#Example
public static Plane Average(this Plane plane, Plane other)
Create a plane halfway this plane and another.
Parameters:
plane (Plane)This plane.
other (Plane)Other plane.
Returns: Average plane.

DistanceTo

#Example
public static double DistanceTo(this Point point, Point other)
Measure the distance between this point and another.
Parameters:
point (Point)Point to measure distance from.
other (Point)Point to measure distance to.
Returns: Distance between points.

DistanceTo

#Example
public static double DistanceTo(this Point point, Point segmentA, Point segmentB, LineExtent extent)
Measure the distance between this point and a line.
Parameters:
point (Point)Point to measure distance to.
segmentA (Point)Tier start point.
segmentB (Point)Tier end point.
extent (LineExtent)Line treatment.
Returns: Distance to finite line segment.

DistanceTo

#Example
public static double DistanceTo(this Point point, Rectangle rectangle)
Measure the distance between this point and a rectangle.
Parameters:
point (Point)Point to measure distance to.
rectangle (Rectangle)Rectangle for distance measurement.
Returns: Distance to finite line segment.

DistanceTo

#Example
public static double DistanceTo(this PointF point, CircleF circle)
Measure the distance between this point and a disc.
Parameters:
point (PointF)Point to measure distance to.
circle (CircleF)Circle.
Returns: Distance to circle.

DistanceTo

#Example
public static double DistanceTo(this PointF point, PointF other)
Measure the distance between this point and another.
Parameters:
point (PointF)Point to measure distance from.
other (PointF)Point to measure distance to.
Returns: Distance between points.

DistanceTo

#Example
public static double DistanceTo(this PointF point, PointF segmentA, PointF segmentB, LineExtent extent)
Measure the distance between this point and a line.
Parameters:
point (PointF)Point to measure distance to.
segmentA (PointF)Tier start point.
segmentB (PointF)Tier end point.
extent (LineExtent)Line treatment.
Returns: Distance to finite line segment.

DistanceTo

#Example
public static double DistanceTo(this PointF point, RectangleF rectangle)
Measure the distance between this point and a rectangle.
Parameters:
point (PointF)Point to measure distance to.
rectangle (RectangleF)Rectangle for distance measurement.
Returns: Distance to finite line segment.

FindTangents

#Example
public static bool FindTangents(this Point3d point, Circle circle, out Line tan0, out Line tan1, out string failure)
Find the tangent lines from this point to a circle.
Parameters:
point (Point3d)Point.
circle (Circle)Circle.
tan0 (out Line)First tangent line.
tan1 (out Line)Second tangent line.
failure (out string)Description in case of failure.
Returns: True if tangents could be found.

FindTangentsEx

#Example
public static bool FindTangentsEx(this Circle circleA, Circle circleB, out Line tan0, out Line tan1, out string failure)
Parameters:
circleA (Circle)
circleB (Circle)
tan0 (out Line)
tan1 (out Line)
failure (out string)

FindTangentsIn

#Example
public static bool FindTangentsIn(this Circle circleA, Circle circleB, out Line tan0, out Line tan1, out string failure)
Parameters:
circleA (Circle)
circleB (Circle)
tan0 (out Line)
tan1 (out Line)
failure (out string)

Incidence

#Example
public static bool Incidence(this Circle a, Circle b, out Point3d p, out Point3d q)
Find the incidence points between two circles.
Parameters:
a (Circle)First circle.
b (Circle)Second circle.
p (out Point3d)First incidence point.
q (out Point3d)Second incidence point.

Incidence

#Example
public static bool Incidence(this Circle circle, Line line, out Point3d point)
Find the incidence point between a line and a circle. The incidence is the average of all intersections, or the point in the circle closest to the line.
Parameters:
circle (Circle)Circle.
line (Line)Line.
point (out Point3d)Incidence point.

IsCoincident

#Example
public static bool IsCoincident(this PointF point, PointF other, float threshold)
Test two points for standard coincidence. Points that are very close together are considered to be coincident.
Parameters:
point (PointF)Point.
other (PointF)Other point.
threshold (float)Coincidence threshold.
Returns: Coincidence.

IsCoincident

#Example
public static bool IsCoincident(this PointF point, PointF other)
Test two points for standard coincidence. Points that are very close together are considered to be coincident.
Parameters:
point (PointF)Point.
other (PointF)Other point.
Returns: Coincidence.

IsValid

#Example
public static bool IsValid(this PointF point)
Tests whether the coordinates are valid numbers.
Parameters:
point (PointF)Point to test.
Returns: True if both the x and y coordinates are valid numbers.

IsValid

#Example
public static bool IsValid(this SizeF size)
Tests whether the dimensions are valid numbers.
Parameters:
size (SizeF)Size to test.
Returns: True if both the Width and Height dimensions are valid numbers.

Length

#Example
public static float Length(this SizeF size)
Gets the length of a size, assuming the size represents a vector.
Parameters:
size (SizeF)Size to measure.
Returns: Length of size.

Move

#Example
public static Plane Move(this Plane plane, double amount)
Move a plane along its normal.
Parameters:
plane (Plane)
amount (double)

Move

#Example
public static Plane Move(this Plane plane, Vector3d amount)
Move a plane along a vector.
Parameters:
plane (Plane)
amount (Vector3d)

Move

#Example
public static Point Move(this Point point, int dx, int dy)
Move a point in x and y.
Parameters:
point (Point)Point to move.
dx (int)Motion along X.
dy (int)Motion along Y.
Returns: Moved point.

Move

#Example
public static PointF Move(this PointF point, float dx, float dy)
Move a point in x and y.
Parameters:
point (PointF)Point to move.
dx (float)Motion along X.
dy (float)Motion along Y.
Returns: Moved point.

Move

#Example
public static PointF Move(this PointF point, SizeF motion)
Move a point in x and y.
Parameters:
point (PointF)Point to move.
motion (SizeF)Motion in X and Y.
Returns: Moved point.

MoveTo

#Example
public static PointF MoveTo(this PointF point, PointF target, float parameter)
Move a point in x and y.
Parameters:
point (PointF)Point to move.
target (PointF)Target point.
parameter (float)Motion factor.
Returns: Moved point.

Perpendicular

#Example
public static SizeF Perpendicular(this SizeF size)
Create a perpendicular size, assuming the size represents a vector.
Parameters:
size (SizeF)Size to rotate.
Returns: Perpendicular to size.

Perpendiculars

#Example
public static SizeF[] Perpendiculars(this PointF[] points)
Create an array of unit perpendicular vectors.
Parameters:
points (PointF[])Points to operate on.
Returns: Array of perpendicular vectors (one per input point).

ProjectTo

#Example
public static Point ProjectTo(this Point point, PointF segmentA, PointF segmentB, LineExtent extent)
Project this point onto a finite line segment.
Parameters:
point (Point)Point to project.
segmentA (PointF)Tier start point.
segmentB (PointF)Tier end point.
extent (LineExtent)Line treatment.
Returns: Projected point.

ProjectTo

#Example
public static PointF ProjectTo(this PointF point, PointF segmentA, PointF segmentB, LineExtent extent)
Project this point onto a finite line segment.
Parameters:
point (PointF)Point to project.
segmentA (PointF)Tier start point.
segmentB (PointF)Tier end point.
extent (LineExtent)Line treatment.
Returns: Projected point.

QuadranceTo

#Example
public static double QuadranceTo(this Point2d point, Point2d other)
Compute the quadrance between two points.
Parameters:
point (Point2d)Point.
other (Point2d)Other point.
Returns: Quadrance (or distance squared).

QuadranceTo

#Example
public static double QuadranceTo(this Point3d point, Point3d other)
Compute the quadrance between two points.
Parameters:
point (Point3d)Point.
other (Point3d)Other point.
Returns: Quadrance (or distance squared).

QuadranceTo

#Example
public static float QuadranceTo(this PointF point, PointF other)
Compute the quadrance between two points.
Parameters:
point (PointF)Point.
other (PointF)Other point.
Returns: Quadrance (or distance squared).

Rotate

#Example
public static SizeF Rotate(this SizeF size, float angle)
Rotate a SizeF assuming it represents a vector.
Parameters:
size (SizeF)Size to rotate.
angle (float)Rotation angle (in degrees, anti-clockwise).
Returns: Rotated size.

Round

#Example
public static Point3d Round(this Point3d point, int digits)
Round the coordinates in a point to a number of decimal places.
Parameters:
point (Point3d)Point to round.
digits (int)Number of digits (0, 15).
Returns: Rounded point.

Round

#Example
public static PointF Round(this PointF point, int decimals)
Round the coordinates of a point.
Parameters:
point (PointF)Point to modify.
decimals (int)Number of decimals.
Returns: Point with coordinates rounded to a specific number of decimal places.

Round

#Example
public static PointF Round(this PointF point)
Round a point to integer coordinates.
Parameters:
point (PointF)Point to modify.
Returns: Point with coordinates rounded to nearest integers.

Round

#Example
public static Vector3d Round(this Vector3d vector, int digits)
Round the components in a vector to a number of decimal places.
Parameters:
vector (Vector3d)Vector to round.
digits (int)Number of digits (0, 15).
Returns: Rounded vector.

ScaleFactor

#Example
public static float ScaleFactor(this Graphics graphics)
Gets the scaling factor of a graphics object as implied by its transform matrix.
Parameters:
graphics (Graphics)Graphics object to inspect.
Returns: Implied scaling factor.

ScaleFactor

#Example
public static float ScaleFactor(this IMatrix matrix)
Gets the scaling factor implied by a matrix.
Parameters:
matrix (IMatrix)Matrix to parse.
Returns: Implied scaling factor.

SizeTo

#Example
public static Size SizeTo(this Point point, Point other)
Create a size structure between two points.
Parameters:
point (Point)Start point.
other (Point)end point.

SizeTo

#Example
public static SizeF SizeTo(this PointF point, PointF other)
Create a size structure between two points.
Parameters:
point (PointF)Start point.
other (PointF)end point.

To2d

#Example
public static Point2d To2d(this Point3d point)
Convert a Point3d into a Point2d.
Parameters:
point (Point3d)Point.
Returns: Point.

To2d

#Example
public static Point2d To2d(this PointF point)
Convert a PointF into a Point2d.
Parameters:
point (PointF)Point.
Returns: Point.

To2d

#Example
public static Point2d[] To2d(this Point3d[] points)
Convert an array of Point3d instances to Point2d instances by removing the z-coordinates.
Parameters:
points (Point3d[])Points.
Returns: Two-dimensional points.

To3d

#Example
public static Point3d To3d(this Point2d point)
Convert a Point2d into a Point3d.
Parameters:
point (Point2d)Point.
Returns: Point.

To3d

#Example
public static Point3d To3d(this PointF point)
Convert a PointF into a Point3d.
Parameters:
point (PointF)Point.
Returns: Point.

To3d

#Example
public static Point3d[] To3d(this Point2d[] points, double[] elevationData)
Convert an array of Point2d instances to Point3d instances.
Parameters:
points (Point2d[])Points.
elevationData (double[])Z values.
Returns: Three-dimensional points.

To3d

#Example
public static Point3d[] To3d(this Point2d[] points, Point3d[] elevationData)
Convert an array of Point2d instances to Point3d instances.
Parameters:
points (Point2d[])Points.
elevationData (Point3d[])Point array for extracting z values.
Returns: Three-dimensional points.

To3d

#Example
public static Point3d[] To3d(this Point2d[] points)
Convert an array of Point2d instances to Point3d instances.
Parameters:
points (Point2d[])Points.
Returns: Three-dimensional points.

To3f

#Example
public static Point3f To3f(this Point3d point)
Convert a Point3d into a Point3f.
Parameters:
point (Point3d)Point.
Returns: Point.

ToGdiPoint

#Example
public static PointF ToGdiPoint(this PointF point)
Convert an Eto point to a GDI point.
Parameters:
point (PointF)

ToPoint

#Example
public static Point ToPoint(this PointF point)
Convert a PointF into a Point.
Parameters:
point (PointF)Point to convert.
Returns: Point.

ToPointF

#Example
public static PointF ToPointF(this Point2d point)
Convert a Point2d to a PointF.
Parameters:
point (Point2d)Point.
Returns: XY projection of point.

ToPointF

#Example
public static PointF ToPointF(this Point3d point)
Convert a Point3d to a PointF.
Parameters:
point (Point3d)Point.
Returns: XY projection of point.

ToPointF

#Example
public static PointF[] ToPointF(this IEnumerable<Point3d> points)
Convert a collection of points into a PointF array.
Parameters:
points (IEnumerable<Point3d>)

ToPointFArray

#Example
public static PointF[] ToPointFArray(this float[] array)
Convert an array of consecutive (x,y) coordinates into a PointF array.
Parameters:
array (float[])

Unitize

#Example
public static SizeF Unitize(this SizeF size)
Unitize a size structure, assuming the size represents a vector.
Parameters:
size (SizeF)Size to unitize.
Returns: Unitized size.

Widen

#Example
public static void Widen(this PointF[] points, out PointF[] side0, out PointF[] side1, params LineProfile[] profiles)
Thicken a polyline curve.
Parameters:
points (PointF[])Polyline points.
side0 (out PointF[])Points along the left side of the widened path will be returned here.
side1 (out PointF[])Points along the right side of the widened path will be returned here.
profiles (params LineProfile[])Sorted array of profiles. Collection may not contain two or more profiles with the same index, but this is not checked for.