Mercurial > dive4elements > river
changeset 4749:3028037c6293
W80Parser: addPoint and lastIdx functions to add a point and find last points index.
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
---|---|
date | Thu, 03 Jan 2013 09:59:41 +0100 (2013-01-03) |
parents | ea8c3e6c9614 |
children | 60398ab6129a |
files | flys-backend/src/main/java/de/intevation/flys/importer/parsers/W80Parser.java |
diffstat | 1 files changed, 41 insertions(+), 0 deletions(-) [+] |
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--- a/flys-backend/src/main/java/de/intevation/flys/importer/parsers/W80Parser.java Thu Jan 03 09:58:49 2013 +0100 +++ b/flys-backend/src/main/java/de/intevation/flys/importer/parsers/W80Parser.java Thu Jan 03 09:59:41 2013 +0100 @@ -138,6 +138,47 @@ public void reset() { data.clear(); currentLine = new ArrayList<XY>(); + anchor = null; + } + + + /** + * Get the Index of the last cross-section lines point. + * @return last points index, -1 if not available. + */ + private int lastPointIdx() { + if (currentLine == null || currentLine.isEmpty()) { + return -1; + } + XY lastPoint = this.currentLine.get(currentLine.size()-1); + return lastPoint.getIndex(); + } + + /** + * Add a Point (YZ,Index) to the current cross section line. + * @param y The y coordinate of new point. + * @param z The z coordinate of new point. + * @param idx Ignored, the parameter of new point. + * @return true if point could been added, false otherwise (e.g. not + * parsable y or z values. + */ + private boolean addPoint(double gkr, double gkh, double height, String idx) { + // Calculate distance between this and anchor-point. + double dx = gkr - anchor.getCoordinate().getX(); + double dy = gkh - anchor.getCoordinate().getY(); + double d = Math.sqrt(dx * dx + dy * dy); + + // We ignore idx, and increment instead. + int index; + int lastPointIdx = lastPointIdx(); + if (lastPointIdx <= 0) { + index = 1; + } else { + index = lastPointIdx + 1; + } + + currentLine.add(new XY(d, height/1000d, index)); + return true; }