Re: Text/Shape Question

• To: Luke Matthews <l.matthews@xxxxxxxxxx>
• Subject: Re: Text/Shape Question
• From: Bill Hibbard <billh@xxxxxxxxxxxxx>
• Date: Tue, 14 Oct 2003 07:34:12 -0500 (CDT)

Hi LUke,

> At the moment we have a need to determine the bounding box of text
> rendered on the display. At the moment I have explored
> PlotText.render_font(). But I have got stuck converting the shape
> coordinates back into lat/lons. So my question is this, Is there any way
> to convert a coordinate in a VisADGeometryArray to the coordinate system
> used on the display?

There's an example of doing this in the getLongitudes() method
of visad/VisADGeometryArray.java. But note this isn't for the
most general case, which may include a CoordinateSystem on the
data side (it does show how to deal with a CoordinateSystem on
the display side, and how to deal with ScalarMap scaling). But
usually (lat, lon) are the reference of a data side
CoordinateSystem, in which case it isn't necessary to deal
with the data side CoordinateSystem.

Cheers,
Bill

• Follow-Ups:
  • Re: Text/Shape Question
    • From: Luke Matthews

• References:
  • Text/Shape Question
    • From: Luke Matthews