[GRASS5] v.out.ascii truncation
Greg Sepesi
sepesi at eduneer.com
Sat Aug 9 08:55:45 EDT 2003
With the talk of publishing a stable 5.0.3, maybe someone can fix a
v.out.ascii truncation bug I've been working around in 5.0.2.
The problem, apparently in G_format_easting although I have not looked
at that code, causes v.out.ascii in some cases to print out fewer
significant digits for longitude than latitude. Below is a portion of
v.out.ascii output showing latitude is given six fractional digits but
longitude only five. Having six fractional digits (i.e., "%.6f") for
both longitude and latitude is necessary when the data source is U.S.
Census Bureau TIGER data and the latitude/longitude location is used to
lookup further attributes from the TIGER data files. (I've been using
the output of v.out.ascii in the development of a stand alone vector
library, which I will offer for inclusion into GRASS.)
Maybe there is a similar problem in G_format_northing that occurs for
southern hemisphere latitudes.
- - -
WEST EDGE: -79.26619
EAST EDGE: -79.08578
SOUTH EDGE: 37.340556
NORTH EDGE: 37.469409
MAP THRESH: 0
VERTI:
A 2
37.444541 -79.16844
37.448141 -79.17404
A 11
37.448141 -79.17404
37.448963 -79.17539
37.449241 -79.17584
37.453221 -79.17876
37.453741 -79.17914
37.458141 -79.18474
37.458477 -79.18525
37.458893 -79.18563
37.459341 -79.18582
37.459661 -79.18592
37.460845 -79.18638
- - -
Greg
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