vector2d QML Value Type
A vector2d type has x and y attributes. More...
Detailed Description
A vector2d
type has x
and y
attributes, otherwise it is similar to the vector3d
type.
Properties of type vector2d
have a zero vector as their default value. This has both x
and y
set to 0
.
See the documentation about the vector3d
type for more information.
To create a vector2d
value, specify it as a "x,y" string, or define the components individually, or compose it with the Qt.vector2d() function.
The vector2d type has the following idempotent functions which can be invoked in QML:
Function Signature | Description | Example |
---|---|---|
real dotProduct(vector2d other) | Returns the scalar real result of the dot product of this vector2d with the other vector2d | |
vector2d times(vector2d other) | Returns the vector2d result of multiplying this vector2d with the other vector2d | |
vector2d times(real factor) | Returns the vector2d result of multiplying this vector2d with the scalar factor | var a = Qt.vector2d(1,2); var b = 4.48; var c = a.times(b); console.log(c.toString()); // QVector2D(4.48, 8.96) |
vector2d plus(vector2d other) | Returns the vector2d result of the addition of this vector2d with the other vector2d | |
vector2d minus(vector2d other) | Returns the vector2d result of the subtraction of other vector2d from this vector2d | |
vector2d normalized() | Returns the normalized form of this vector | var a = Qt.vector2d(1,2); var b = a.normalized(); console.log(b.toString()); // QVector2D(0.447214, 0.894427) |
real length() | Returns the scalar real value of the length of this vector2d | var a = Qt.vector2d(1,2); var b = a.length(); console.log(b.toString()); // 2.23606797749979 |
vector3d toVector3d() | Returns the vector3d result of converting this vector2d to a vector3d | var a = Qt.vector2d(1,2); var b = a.toVector3d(); console.log(b.toString()); // QVector3D(1, 2, 0) |
vector4d toVector4d() | Returns the vector4d result of converting this vector2d to a vector4d | var a = Qt.vector2d(1,2); var b = a.toVector4d(); console.log(b.toString()); // QVector4D(1, 2, 0, 0) |
bool fuzzyEquals(vector2d other, real epsilon) | Returns true if this vector2d is approximately equal to the other vector2d. The approximation will be true if each attribute of this is within epsilon of other . Note that epsilon is an optional argument, the default epsilon is 0.00001. |
This value type is provided by the QtQuick import.
See also QML Value Types.
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