| layout | default-layout |
|---|---|
| title | class CPoint - Dynamsoft Core Module C++ Edition API Reference |
| description | This page shows the C++ edition of the class CPoint in Dynamsoft Core Module. |
| keywords | point, c++ |
| needAutoGenerateSidebar | true |
The CPoint class represents a point in 2D space. It contains an array of two integers, which represent the coordinates of the point.
Namespace: dynamsoft::basic_structures
Assembly: DynamsoftCore
typedef DMPoint_<int> CPoint;| Method | Description |
|---|---|
Set |
Sets the coordinates of a point. |
operator[] |
Gets the element at the specified index in the CPoint. |
DistanceTo |
Calculates the distance between the current point and the specified target point. |
TransformCoordinates |
Transforms the coordinates of a point using a given transformation matrix. |
Sets the coordinates of a point.
void Set(int x, int y)Parameters
[in] x The x coordinate of a point.
[in] y The y coordinate of a point.
Gets the element at the specified index in the CPoint.
int& operator[](int i)Parameters
[in] i An integer index used to access the element of the CPoint.
Return Value
A reference to the element at the specified index in the CPoint.
Calculates the distance between the current point and the specified target point.
double DistanceTo(const CPoint& pt) const;Parameters
[in] pt The target point to which the distance is calculated.
Return Value
A floating-point value representing the distance between the current point and the specified target point.
Transforms the coordinates of a point using a given transformation matrix.
static CPoint TransformCoordinates(CPoint originalPoint, double transformationMatrix[9])Parameters
[in] originalPoint The original point to transform.
[in] transformationMatrix The transformation matrix to apply to the coordinates.
Return value
Returns a new CPoint object with the transformed coordinates.
Code Snippet
CPoint originalPoint;
originalPoint.Set(10, 20);
double transformationMatrix[9] = {1, 0, 0, 0, 2, 0, 0, 0, 1};
CPoint transformedPoint = CPoint::TransformCoordinates(originalPoint, transformationMatrix);