NAME¶
MoveCmd, RotateCmd, ScaleCmd - coordinate transformation commands
SYNOPSIS¶
#include <Unidraw/Commands/transforms.h>
DESCRIPTION¶
The Unidraw library predefines three purely interpretive commands for performing
coordinate transformations: MoveCmd defines a translation, RotateCmd defines a
rotation, and ScaleCmd defines a two-dimensional scaling.
MOVECMD PUBLIC OPERATIONS¶
- MoveCmd(ControlInfo*, float dx = 0, float dy =
0)
- MoveCmd(Editor* = nil, float = 0, float = 0)
- Construct a new MoveCmd, specifying the translation
distances in the horizontal ( dx) and vertical (dy)
dimensions.
- void GetMovement(float&, float&)
- Return the translation distances specified in the
constructor.
ROTATECMD PUBLIC OPERATIONS¶
- RotateCmd(ControlInfo*, float = 0)
- RotateCmd(Editor* = nil, float = 0)
- Construct a new RotateCmd, specifying the rotation angle in
degrees.
- float GetRotation()
- Return the rotation angle specified in the
constructor.
SCALECMD PUBLIC OPERATIONS¶
- ScaleCmd(
- ControlInfo*, float sx = 1, float sy = 1, Alignment =
Center
- )
- ScaleCmd(Editor* = nil, float = 1, float = 1, Alignment
= Center)
- Construct a new ScaleCmd, specifying the scaling factors in
the horizontal ( sx) and vertical (sy) dimensions and an
alignment suggesting the point about which the component should be
scaled.
- void GetScaleing(float&, float&)
- Alignment GetAlignment()
- Return the scaling factors and alignment specified in the
constructor.
SEE ALSO¶
Command(3U)