[leveller] Leveller 2.6 alpha build 2372 available

  • From: Ray Gardener <rayg@xxxxxxxxxxxxxxxxxx>
  • To: leveller@xxxxxxxxxxxxx
  • Date: Tue, 05 Sep 2006 17:50:23 -0700

Changes are:

- JDEM import driver enabled (untested).
- Gridlines vanishing when middle mouse button went down; fixed.
- Brush tools not responding during plain mousemove after
  using context menu on map; fixed.
- Some mappane methods strictly for brush tools were letting any
  tool call them; fixed.
- Polar rotation bug on sphere section UV map fixed; lets
  latitude of small section be away from equator.
- Coordsys option in sphere section UV mapping added.
- Coordsys option in planar UV mapping added.

The last two items make the "Use coordinate system" checbox
in the View, Base Shape... dialog work. e.g., if you import
a DEM with a geo coordsys, opt for sphere section UV mapping,
and check "Use coordsys", the section parameters will be
auto-computed to curve the DEM using Earth radius. Typical
DEMs (around 10km wide) will barely show the curvature, but
a GTOPO30 section easily will. Earth is the only planet whose
radius is used, but the ability to easily use other radii may
be added, time permitting.

For planar UV mapping, the coordsys option will make the Z axis
scale correspond to any nonsquare aspect the groundplane may have;
e.g., if the heightfield cells are 10m x 15m, the heightfield will
appear 1.5 times longer along the Z axis.

Ray

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