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Motiejus Jakštys 2020-12-16 09:06:27 +02:00
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contours/README.md
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@ -3,20 +3,22 @@ Countour line generator from LIDAR data
This accepts two kinds of contour data:
*2009 variant*: x, y, z, separated by one or more spaces:
```
501991.670 6150000.000 57.689
```
*Non-gridded*, therefore significantly slower (`gdal_grid` must be used before making contours, which is slow).
*2017*: y, x, z, separated by commas:
**2017 variant**: y, x, z, separated by commas:
```
6062999.75,584000.75,88.07
```
This is *gridded*, so quite fast.
Recommended whenever available. It is more dense, gridded (thus much faster),
but not available outside major cities.
**2009 variant**: x, y, z, separated by one or more spaces:
```
501991.670 6150000.000 57.689
```
**Non-gridded**, therefore significantly slower (`gdal_grid` must be used
before making contours, which is slow). However, available throughout the
country.
Usage: