- ZoomIn( <Scale Factor> )
- Zooms the Graphics View in by given factor with respect to current zoom, center of the screen is used as center point for the zoom.
ZoomIn(1)doesn't change the view, but does remove traces
ZoomIn(2)zooms the view in
ZoomIn(0.5)is equivalent to
ZoomOut(2), i.e. it zooms the view out.
- ZoomIn( <Scale Factor>, <Center Point> )
- Zooms the Graphics View in by given factor with respect to current zoom, second parameter specifies center point for the zoom.
ZoomIn(2, (0, 0))
- ZoomIn( <Min x>, <Min y>, <Max x>, <Max y> )
- Zooms the graphics view to the rectangle given by vertices (Min x, Min y), (Max x, Max y).
ZoomIn(0, 1, 5, 6)
- Note: If any of these parameters are dependent or has label set, the bounds of the view become dynamic. To avoid this behaviour, use CopyFreeObject Command.
- Example:If a is a slider,
ZoomIn(-a, -a, a, a)makes the zoom of the view dependent on slider a.
Idea of Use
Linear aproximation of a function by its tangent
Create a function f with a point A on it and a button with the code
ZoomIn(2,A) to see that the function looks equal to the tangent for a big "magnification". Another button with ZoomOut let you be able to prove this at other positions of the point A.