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@beauof beauof commented Feb 28, 2020

This feature branch implements functionality to convert tile x/y indices to quadkey and vice-versa.

More features:

  • tile x/y from tile number and vice-versa
  • get midpoint between NDSCoordinate and supplied point
  • flood fill algorithm to get map tiles covered by a given polygon
  • NDSEnvelope to get master tile that fully encloses a given polygon

@rondiplomatico
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Rebase with squash to 1 commit please

…nd quadkey

- add new functionality and a whole bunch of unit tests
- add polygon refinement functionality
- add polygon refinement and polygon to map test
@beauof beauof force-pushed the feature-tiles-xy-quadkey branch from 6c81ecb to 1a3ca83 Compare February 28, 2020 11:59
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Still a way to go :-)

* Get flood filled image
*
*/
public int[][] getFloodFill(){
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if i run

 floodFill f = new floodFill();
 int[][] ff = f.getFloodFill();
 int a = ff.length; //-> NullPointerException.

Always return useful values for public access methods or state what to expect. what needs to be called first before this contains useful values? et

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The first line will cause a compile-time error because there's not constructor without arguments. So this should never happen? I've added a comment in the constructor that we expect a non-empty image to be supplied.

import java.util.Map;
import java.util.stream.IntStream;

public class polygon {
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CamelCase! -> Polygon.
Also, if this is a polygon composed of NDSCoordinates, it should be named "NDSPolygon"
also, it has a main method. add a separate Class "NDSPolyFillDemo" with it, and put the polygon logic into the NDSPolygon class

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I've moved the demo away from the class - still not sure if that's organized well. Might have to revisit the files later.

}
}

@Test
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What is the test coverage of these tests?

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NDSTile - 94 %.
nds-tiles repo - 82.9 %.

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Repeated Review with current rebase

beauof added a commit to beauof/nds-tiles that referenced this pull request Feb 28, 2020
@beauof beauof force-pushed the feature-tiles-xy-quadkey branch from b7423fb to e82a2b5 Compare March 2, 2020 09:11
@beauof beauof requested a review from rondiplomatico March 2, 2020 09:11
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2 participants