LEADTOOLS Primitive Basic Data Types

Data Type

Definition and Usage

L_POINTD

Stores two double numbers that represent the coordinates of a point (X and Y).

L_RECTD

Describes the width, height, and location of a rectangle in double numbers.

L_SIZED

Stores two double numbers that represent the size of an object.

L_MATRIX

Represents a 3x3 affine transformation matrix used for transformations in 2-D space.

L_LENGTHD

Defines a double length value.

Functions

Description

L_LengthD_IsEqual

Tests the specified L_SIZED structures for equality.

L_LengthD_Make

Sets the values of the specified L_LENGTHD structure.

L_RectD_ToRect

Sets the values of the specified L_RECT structure using the values from the specified L_RECTD structure.

L_RectD_Transform

Transforms the specified L_RECTD by applying the specified matrix.

L_RectD_Scale

Multiplies the size of the L_RECTD by the specified x and y values.

L_RectD_Offset

Adjusts the location of the specified L_RECTD by the specified amount.

L_RectD_Intersect

Sets the value of the rect to the intersection of two L_RECTD structures.

L_RectD_IntersectsWith

Determines whether the L_RECTD structure testRect intersects with the L_RECTD structure rect.

L_RectD_Inflate

Inflates the specified L_RECTD structure by the specified amount.

L_RectD_ContainsPoint

Determines whether the L_POINTD structure testRect is contained within the L_RECTD structure rect.

L_RectD_ContainsRect

Determines whether the L_RECTD structure testRect is contained within the L_RECTD structure rect.

L_RectD_Size

Gets the size of the specified L_RECTD structure.

L_RectD_Location

Gets the coordinates of the upper-left corner of the specified L_RECTD structure.

L_RectD_BottomLeft

Gets the bottom, left value of the specified L_RECTD structure.

L_RectD_BottomRight

Gets the bottom, right value of the specified L_RECTD structure.

L_RectD_TopRight

Gets the top, right value of the specified L_RECTD structure.

L_RectD_TopLeft

Gets the top, left value of the specified L_RECTD structure.

L_RectD_Bottom

Gets the bottom value of the specified L_RECTD structure.

L_RectD_Top

Gets the top value of the specified L_RECTD structure.

L_RectD_Right

Gets the right value of the specified L_RECTD structure.

L_RectD_Left

Gets the left value of the specified L_RECTD structure.

L_RectD_IsEmpty

Tests the specified L_RECTD structure for empty values.

L_RectD_IsEqual

Tests the specified L_RECTD structures for equality.

L_RectD_Empty

Sets the values of the specified L_RECTD structure to empty values.

L_RectD_FromLTRB

Sets the values of the specified L_RECTD structure.

L_RectD_Make

Sets the values of the specified L_RECTD structure.

L_RectD_Union

Sets the value of the rect to the union of two L_RECTD structures.

L_Size_Empty

Sets the values of the specified L_SIZE structure to empty values.

L_Size_IsEmpty

Tests the specified L_SIZE structure for empty values.

L_Size_IsEqual

Tests the specified L_SIZE structures for equality.

L_Size_Make

Sets the values of the specified L_SIZE structure.

L_Size_ToSizeD

Sets the value of the specified L_SIZED structure using the values from the specified L_SIZE structure.

L_SizeD_ToSize

Sets the value of the specified L_SIZE structure using the values from the specified L_SIZED structure.

L_SizeD_IsEmpty

Tests the specified L_SIZED structure for empty values.

L_SizeD_IsEqual

Tests the specified L_SIZED structures for equality.

L_SizeD_Empty

Sets the values of the specified L_SIZED structure to empty values.

L_SizeD_Make

Sets the values of the specified L_SIZED structure.

L_Point_Empty

Sets the values of the specified L_POINT structure to empty values.

L_Point_IsEmpty

Tests the specified L_POINT structure for empty values.

L_Point_IsEqual

Tests the specified L_POINT structures for equality.

L_Point_Make

Sets the values of the specified L_POINT structure.

L_Point_ToPointD

Sets the value of the specified L_POINTD structure using the values from the specified L_POINT structure.

L_PointD_Multiply

Transforms the specified L_POINTD structure by the specified L_MATRIX structure.

L_PointD_ToPoint

Sets the value of the specified L_POINT structure using the values from the specified L_POINTD structure.

L_PointD_IsEqual

Tests the specified L_POINTD structures for equality.

L_PointD_IsEmpty

Tests the specified L_POINTD structure for empty values.

L_PointD_Make

Sets the values of the specified L_POINTD structure.

L_PointD_Empty

Sets the values of the specified L_POINTD structure to empty values.

L_Rect_Union

Sets the value of the rect to the union of two L_RECT structures.

L_Rect_ContainsPoint

Determines whether the L_POINT structure testRect is contained within the L_RECT structure rect.

L_Rect_ToRectD

Sets the values of the specified L_RECTD structure using the values from the specified L_RECT structure.

L_Rect_Offset

Adjusts the location of the specified L_RECT by the specified amount.

L_Rect_Intersect

Sets the value of the rect to the intersection of two L_RECT structures.

L_Rect_IntersectsWith

Determines whether the L_RECT structure testRect intersects with the L_RECT structure rect.

L_Rect_Inflate

Inflates the specified L_RECT structure by the specified amount.

L_Rect_ContainsRect

Determines whether the L_RECT structure testRect is contained within the L_RECT structure rect.

L_Rect_Size

Gets the size of the specified L_RECT structure.

L_Rect_Location

Gets the coordinates of the upper-left corner of the specified L_RECT structure.

L_Rect_BottomRight

Gets the bottom, right value of the specified L_RECT structure.

L_Rect_TopLeft

Gets the top, left value of the specified L_RECT structure.

L_Rect_TopRight

Gets the top, Right value of the specified L_RECT structure.

L_Rect_Height

Gets the height of the specified L_RECT structure.

L_Rect_Width

Gets the widths of the specified L_RECT structure.

L_Rect_BottomLeft

Gets the bottom, left value of the specified L_RECT structure.

L_Rect_IsEqual

Tests the specified L_RECT structures for equality.

L_Rect_IsEmpty

Tests the specified L_RECT structure for empty values.

L_Rect_Empty

Sets the values of the specified L_RECT structure to empty values.

L_Rect_FromLTRB

Sets the values of the specified L_RECT structure.

L_Rect_Make

Sets the values of the specified L_RECT structure.

L_Matrix_Append

Appends the L_MATRIX specified by matrix to the L_MATRIX specified by result and stores the values in result.

L_Matrix_IsEqual

Tests the specified L_MATRIX structures for equality.

L_Matrix_Invert

Inverts specified L_MATRIX.

L_Matrix_Prepend

Prepends the L_MATRIX specified by matrix to the L_MATRIX specified by result and stores the values in result.

L_Matrix_TransformRect

Transforms the specified L_RECTD by the specified L_MATRIX.

L_Matrix_TransformVector

Transforms the specified L_POINTD structure by the specified L_MATRIX.

L_Matrix_TransformPoints

Transforms the specified array of L_POINTD structures by the specified L_MATRIX.

L_Matrix_TransformPoint

Transforms the specified L_POINTD structure by the specified L_MATRIX.

L_Matrix_Translate

Appends the specified scale vector to the specified L_MATRIX.

L_Matrix_TranslatePrepend

Prepends a translation of the specified offsets to the specified L_MATRIX.

L_Matrix_Skew

Appends a skew of the specified degrees in the x and y dimensions to the specified L_MATRIX.

L_Matrix_SkewPrepend

Prepends a skew of the specified degrees in the x and y dimensions to the specified L_MATRIX.

L_Matrix_Rotate

Applies a rotation of the specified angle about the origin of the specified L_MATRIX.

L_Matrix_RotateAt

Applies a rotation of the specified angle about the origin of the specified L_MATRIX.

L_Matrix_RotateAtPrepend

Prepends a rotation of the specified angle at the specified point to the specified L_MATRIX.

L_Matrix_RotatePrepend

Prepends a rotation of the specified angle to the specified L_MATRIX.

L_Matrix_Scale

Appends the specified scale vector to the specified L_MATRIX.

L_Matrix_ScaleAt

Prepends the specified scale vector to the specified L_MATRIX.

L_Matrix_ScaleAtPrepend

Prepends the specified scale about the specified point of the specified L_MATRIX.

L_Matrix_ScalePrepend

Prepends the specified scale vector to the specified L_MATRIX.

L_Matrix_Multiply

Multiplies two L_MATRIX structures.

L_Matrix_SetOffsetX

Sets the value of the third row and first column of the specified L_MATRIX.

L_Matrix_SetOffsetY

Sets the value of the third row and second column of the specified L_MATRIX.

L_Matrix_GetM22

Gets the value of the second row and second column of the specified L_MATRIX.

L_Matrix_GetM11

Gets the value of the first row and first column of the specified L_MATRIX.

L_Matrix_GetM12

Gets the value of the first row and second column of the specified L_MATRIX.

L_Matrix_GetM21

Gets the value of the second row and first column of the specified L_MATRIX.

L_Matrix_SetM11

Sets the value of the first row and first column of the specified L_MATRIX.

L_Matrix_SetM12

Sets the value of the first row and second column of the specified L_MATRIX.

L_Matrix_SetM21

Sets the value of the second row and first column of the specified L_MATRIX.

L_Matrix_SetM22

Sets the value of the second row and second column of the specified L_MATRIX.

L_Matrix_GetOffsetY

Gets the value of the third row and second column of the specified L_MATRIX.

L_Matrix_GetOffsetX

Gets the value of the third row and first column of the specified L_MATRIX.

L_Matrix_HasInverse

Indicates whether the specified L_MATRIX is invertible.

L_Matrix_Determinant

Gets the determinant of the specified L_MATRIX.

L_Matrix_IsIdentity

Indicates whether the specified L_MATRIX is an identity matrix.

L_Matrix_Identity

Sets the values of the specified L_MATRIX structure to identity.

L_Matrix_Set

Sets the values of the specified L_MATRIX structure.