ZoomBox: restrictPointsToLimits(xInput, yInput, xLimits, yLimits) - File Exchange

Code covered by the BSD License

Highlights from
ZoomBox

[]=expandaxis(perleft, perrig... EXPANDAXIS Extends the current axis in any or all directions.
moveCorner(hPoint, updateOnly... MOVECORNER allows one corner of a box to be moved.
refreshAxesAndZoomBoxFromAppD... refreshAxesAndZoomBoxFromAppData refreshes screen elements.
restrictPointsToLimits(xInput... restrictPointsToLimits Keeps the points inside the limits plus margin.
siblings(hChild, type); SIBLINGS - returns handles of children of parent of input.
span(input); SPAN finds the range of a vector.
zoomBox(hParentAxes, hChildAx... ZOOMBOX creates a resizable zoom box.
zoomBoxButtonDownFcn(updateOn... zoomBoxButtonDownFcn Gets cursor position, sets new callbacks.
zoomBoxWindowButtonMotionFcn(... zoomBoxWindowButtonMotionFcn Calculates movement of zoom box.
zoomBoxWindowButtonUpFcn zoomBoxWindowButtonUpFcn Removes callbacks when button released.
example.m
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from ZoomBox by Doug Hull
Movable, stretchable zoom box in parent axes controls axes limits in all children axes.

restrictPointsToLimits(xInput, yInput, xLimits, yLimits)

function [xOutput, yOutput] = restrictPointsToLimits(xInput, yInput, xLimits, yLimits)
%restrictPointsToLimits Keeps the points inside the limits plus margin.
%
% Helper function for ZOOMBOX

%Needed to keep zoom box selectable (Axes gets priority if overlap)
horizontalMargin = 0.001 * span(xLimits);
verticalMargin   = 0.020 * span(yLimits);


leftOverhang   = max([0 ((xLimits(1) + horizontalMargin)) - xInput']);
rightOverhang  = max([0 (xInput' - (xLimits(2) - horizontalMargin))]);
topOverhang    = max([0 (yInput' - (yLimits(2) -   verticalMargin))]);
bottomOverhang = max([0 ((yLimits(1) +   verticalMargin)) - yInput']);

xOutput        = xInput - rightOverhang + leftOverhang;
yOutput        = yInput - topOverhang + bottomOverhang;

% Copyright 2007 - 2009 The MathWorks, Inc.

Highlights from ZoomBox

Highlights from
ZoomBox