org.tinfour.demo.examples

Class ExampleGridAndHillshade

java.lang.Object

org.tinfour.demo.examples.ExampleGridAndHillshade

All Implemented Interfaces:

IDevelopmentTest

public class ExampleGridAndHillshade
extends Object
implements IDevelopmentTest

Provides an example of code to build a GRID from an LAS file

Constructor Summary

Constructors

Constructor and Description
ExampleGridAndHillshade()

Method Summary

Modifier and Type	Method and Description
static void	main(String[] args) Provides the main method for an example application that develops raster elevation files in Esri's ASCII format and image files in PNG format.
void	runTest(PrintStream ps, String[] args) Run the example code accepting an input LAS file and writing an output grid in Esri's ASCII raster format.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ExampleGridAndHillshade

public ExampleGridAndHillshade()

Method Detail

runTest

public void runTest(PrintStream ps,
                    String[] args)
             throws IOException

Run the example code accepting an input LAS file and writing an output grid in Esri's ASCII raster format.

Specified by:

runTest in interface IDevelopmentTest

Parameters:

ps - a valid print-stream for recording results of processing.

args - a set of arguments for configuring the processing.

Throws:

IOException - if unable to read input or write output files.

main

public static void main(String[] args)

Provides the main method for an example application that develops raster elevation files in Esri's ASCII format and image files in PNG format.

Data is accepted from an LAS file. For best results, the file should be in a projected coordinate system rather than a geographic coordinate system. In general, geographic coordinate systems are a poor choice for Lidar data processing since they are non-isotropic, however many data sources provide them in this form.

Command line arguments include the following:

   -in <file path>    input LAS file
   -out <file path>   output file path to be used for processing.
   -cellSize <value > 0, default 1>    the cell size for the output
                      grids. cell size should be consistent with
                      nominal pulse spacing of LAS file ground points
   -method [Linear, NaturalNeighbor, Regression] default NaturalNeighbor
                      Interpolation method used for modeling elevations.

    Other arguments used by Tinfour test programs are supported
 

Parameters:

args - command line arguments indicating the input LAS file for processing and various output options.