[leveller] Leveller 2.6 beta build 6871 available
- From: Ray Gardener <rayg@xxxxxxxxxxxxxxxxxx>
- To: leveller@xxxxxxxxxxxxx
- Date: Fri, 15 Jun 2007 07:28:44 -0700
Changes are:
- On Import Subsection dialog, one could define the section area
wholly outside the overview image; fixed.
- Can import georeffed current Leveller files through GDAL driver
- 'From max. possible' checkbox added to import dialog, supports
mapping total span of file (e.g., 0-255 for 8-bit) to specified
span, instead of using the span subset the pixels occupy. Makes
it easier to treat max. possible span as vertcs for PNG, etc.
- Changing ground extents didn't update grid sometimes; fixed.
- Colormap and shading wrong on import overviews; fixed.
- Axes confused with each other in ground extents dialog; fixed.
- Don't allow "wrong direction" extents for Lat/lon cs.
- Don't allow lat/lon to exceed 89 or 180, respectively, for
either side of HF
- Forced elev units to meters for GDAL datasets that have
ground units but not elev units
- Default import format set to SRTM30 instead of BMP.
- Last used import format saved in preferences.
- Last used export format saved in document.
- Reprojected textures didn't handle off-texture sampling well; fixed.
- Ground extents dialog allowed zero extent distance; fixed.
- Paste Positionally stops artifacting if pasted area has same
pixel size as area on clipboard
- Opening legacy 2.x document did not convert worldscale properly
nor set gridlines correctly; fixed.
- Using a resample preset from the Resample submenu forgot to
prompt if doc memory limit exceeded; fixed.
- OGC WCS driver support added, lets one import terrain from
remote servers over TCP/IP. For example, save the following six
lines as 'test.xml', and then specify test.xml as the dataset file.
<WCS_GDAL>
<ServiceURL>http://geodata.telascience.org/cgi-bin/mapserv_dem?
</ServiceURL>
<CoverageName>srtmplus_raw</CoverageName>
<Timeout>75</Timeout>
</WCS_GDAL>
Import process will try to build overview from the smallest overview
the server has. A whole-Earth map should appear in the Subsection
dialog, it's critical to choose a _small_ area because the dataset
is very large. Downsampling occurs locally, so regardless of
downsample choice, all the original pixels in the selection area
will be read from the server. Grabbing all of Australia, e.g., takes
about 2-3 minutes on average cable broadband speed.
The download is available at
http://www.daylongraphics.com/products/leveller/download/lev26b_6871.zip
Ray
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