Point is a structured type used to represent a position (X, Y) in 2 dimensions.
MyPoint is Point
MyPoint.X = 280
MyPoint.Y = 54
Syntax
<Point name>:
Name of the Point variable to declare.
Remarks
WLanguage properties that can be used with the Point type
The initial value of a point is set to (0,0).
The following properties can be used to handle a Point variable:
| |
| Property name | Effect |
|---|
| X | X-coordinate of the point. This coordinate corresponds to a signed 4-byte integer. |
| Y | Y-coordinate of the point. This coordinate corresponds to a signed 4-byte integer. |
Assigning values to a Point variable
The following values can be assigned to a Point variable:
- another point.
For example:
MyPoint is Point
MyPoint.X = 280
MyPoint.Y = 54
MyPoint1 is Point = MyPoint
- an array of two values that can be converted to integers.
For example:
MyPoint is Point
MyPoint = [280, 54]
Assigning values to an array of Points
The following values can be assigned to an array of Points:
- an array of values containing points.
For example:
ArrayOfPoints is array of Point
ArrayOfPoints = [MyPoint1, MyPoint2]
- an array of two values that can be converted to integers.
For example:
ArrayOfPoints is array of Point
ArrayOfPoints = [[1,2],[3,4]]
Comparison and serialization
- Comparison: The = and <> comparison operators are available.
- Serialization: The binary, XML and JSON serializations are available.
Caution: In an XML serialization, xmlAttribute cannot be used on a structure or class member of type Point.
Notes
- A Point variable can be stored in a variant.
- A Point variable cannot hold Null values:
- The "PointVariable = NULL" condition always returns False.
- The "PointVariable <> NULL" condition always returns True.
- You cannot reference a Point variable.
The "PointVariable2 <- PointVariable1" syntax triggers an error. - You cannot force the copy of a Point variable.
The "PointVariable2 <= PointVariable1" syntax triggers an error. - You can add and subtract two Point variables.
- Point variables can be passed to the system APIs.
- Point variables are used to define the points of Polygon variables.