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Topic: Location of the axes origin
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Martin van Gelderen

Posts: 2
Registered: 12/7/04
Location of the axes origin
Posted: Jul 9, 1996 6:15 AM
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I was trying to use the rbbox function to zoom define interactively
a zoomwindow in a 2D-plot (more or less the same as the zoomrb function
of Dean Redelinghuys located in the pub/contrib/graphics of the Matlab
ftp-server). The point is that I have is that I get the coordinates of the
zoom window in pixel and I have to convert them into axes values.
This can be done by using the 'position' properties of the current axes
and figure window. As long as I don't touch the 'AspectRatio' property of the
axes it works fine, but if I put 'AspectRatio' to a certain value, the
left-under corner of the axes as indicated by the 'Position' property of
the axes does not coincide anymore with the axes' origin and I can't find
a way to get hold of the origin of the axes expressed in pixels. Does
anyone have an alternative to the zooming or is there an algorithm to
compute the axes origin?

Martin van Gelderen

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Martin van Gelderen Delft University of Technology
Delft institute of Earth Oriented
Space Research (DEOS) /
Faculty of Geodetic Engineering
Thijsseweg 11
Phone: (31) 15 2782562 NL-2629 JA DELFT
Fax: (31) 15 2783711 The Netherlands



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