INSA/be-graphes
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Code Issues 4 Releases Wiki Activity

Add bounding-box in GraphStatistics.

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This commit is contained in:
Holt59 2018-03-10 20:00:27 +01:00
parent 2a77c2d271
commit 84f01ce47e
3 changed files with 82 additions and 24 deletions
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50
src/main/org/insa/graph/GraphStatistics.java
View File

@ -10,6 +10,46 @@ package org.insa.graph;
*/
public class GraphStatistics {
/**
* Class representing a bounding box for a graph (a rectangle that contains all
* nodes in the graph).
*
*/
public static class BoundingBox {
private final Point topLeft, bottomRight;
/**
* Create a new BoundingBox represented by the given top-left and bottom-right
* points.
*
* @param topLeft Top left corner of the bounding box.
* @param bottomRight Bottom right corner of the bounding box.
*/
public BoundingBox(Point topLeft, Point bottomRight) {
this.topLeft = topLeft;
this.bottomRight = bottomRight;
}
/**
* @return Bottom-right point of this boundin box.
*/
public Point getBottomRightPoint() {
return bottomRight;
}
/**
* @return Top-left point of this bounding box.
*/
public Point getTopLeftPoint() {
return topLeft;
}
}
// Bounding box for this graph.
private final BoundingBox boundingBox;
// Maximum speed on this graph (in kmph).
private final int maximumSpeed;
@ -23,11 +63,19 @@ public class GraphStatistics {
* be used to indicate that this graph has no maximum limitation.
* @param maximumLength Maximum length of any arc of the graph.
*/
public GraphStatistics(int maximumSpeed, float maximumLength) {
public GraphStatistics(BoundingBox boundingBox, int maximumSpeed, float maximumLength) {
this.boundingBox = boundingBox;
this.maximumLength = maximumLength;
this.maximumSpeed = maximumSpeed;
}
/**
* @return The bounding box for this graph.
*/
public BoundingBox getBoundingBox() {
return this.boundingBox;
}
/**
* @return Maximum speed of any arc in the graph, or 0 if some road have no
* speed limitations.

18
src/main/org/insa/graph/io/BinaryGraphReader.java
View File

@ -12,6 +12,7 @@ import org.insa.graph.AccessRestrictions.AccessRestriction;
import org.insa.graph.Arc;
import org.insa.graph.Graph;
import org.insa.graph.GraphStatistics;
import org.insa.graph.GraphStatistics.BoundingBox;
import org.insa.graph.Node;
import org.insa.graph.Point;
import org.insa.graph.RoadInformation;
@ -179,12 +180,25 @@ public class BinaryGraphReader extends BinaryReader implements GraphReader {
ArrayList<Node> nodes = new ArrayList<Node>(nbNodes);
// Read nodes.
float minLongitude = Float.POSITIVE_INFINITY, minLatitude = Float.POSITIVE_INFINITY,
maxLongitude = Float.NEGATIVE_INFINITY, maxLatitude = Float.NEGATIVE_INFINITY;
observers.forEach((observer) -> observer.notifyStartReadingNodes(nbNodes));
for (int node = 0; node < nbNodes; ++node) {
// Read longitude / latitude.
float longitude = ((float) dis.readInt()) / 1E6f;
float latitude = ((float) dis.readInt()) / 1E6f;
// Update minimum / maximum.
minLongitude = Math.min(longitude, minLongitude);
minLatitude = Math.min(latitude, minLatitude);
maxLongitude = Math.max(longitude, maxLongitude);
maxLatitude = Math.max(latitude, maxLatitude);
// Update information.
nbSuccessors[node] = dis.readUnsignedByte();
nbTotalSuccessors += nbSuccessors[node];
// Create node.
final Node aNode = new Node(node, new Point(longitude, latitude));
nodes.add(aNode);
observers.forEach((observer) -> observer.notifyNewNodeRead(aNode));
@ -270,7 +284,9 @@ public class BinaryGraphReader extends BinaryReader implements GraphReader {
this.dis.close();
return new Graph(mapId, mapName, nodes, new GraphStatistics(maxSpeed, maxLength));
return new Graph(mapId, mapName, nodes,
new GraphStatistics(new BoundingBox(new Point(minLongitude, maxLatitude),
new Point(maxLongitude, minLatitude)), maxSpeed, maxLength));
}
/**

28
src/main/org/insa/graphics/drawing/components/BasicDrawing.java
View File

@ -23,6 +23,7 @@ import javax.swing.JPanel;
import org.insa.graph.Arc;
import org.insa.graph.Graph;
import org.insa.graph.GraphStatistics.BoundingBox;
import org.insa.graph.Node;
import org.insa.graph.Path;
import org.insa.graph.Point;
@ -394,6 +395,7 @@ public class BasicDrawing extends JPanel implements Drawing {
/*
* (non-Javadoc)
*
* @see org.insa.graphics.drawing.Drawing#clear()
*/
@Override
@ -409,6 +411,7 @@ public class BasicDrawing extends JPanel implements Drawing {
/*
* (non-Javadoc)
*
* @see org.insa.graphics.drawing.Drawing#clearOverlays()
*/
@Override
@ -469,6 +472,7 @@ public class BasicDrawing extends JPanel implements Drawing {
/*
* (non-Javadoc)
*
* @see
* org.insa.graphics.drawing.Drawing#addDrawingClickListener(org.insa.graphics.
* drawing.DrawingClickListener)
@ -480,6 +484,7 @@ public class BasicDrawing extends JPanel implements Drawing {
/*
* (non-Javadoc)
*
* @see org.insa.graphics.drawing.Drawing#removeDrawingClickListener(org.insa.
* graphics.drawing.DrawingClickListener)
*/
@ -561,24 +566,13 @@ public class BasicDrawing extends JPanel implements Drawing {
// Clear everything.
this.clear();
BoundingBox box = graph.getGraphInformation().getBoundingBox();
// Find minimum/maximum longitude and latitude.
double minLon = Double.POSITIVE_INFINITY, minLat = Double.POSITIVE_INFINITY,
maxLon = Double.NEGATIVE_INFINITY, maxLat = Double.NEGATIVE_INFINITY;
for (Node node: graph.getNodes()) {
Point pt = node.getPoint();
if (pt.getLatitude() < minLat) {
minLat = pt.getLatitude();
}
if (pt.getLatitude() > maxLat) {
maxLat = pt.getLatitude();
}
if (pt.getLongitude() < minLon) {
minLon = pt.getLongitude();
}
if (pt.getLongitude() > maxLon) {
maxLon = pt.getLongitude();
}
}
double minLon = box.getTopLeftPoint().getLongitude(),
maxLon = box.getBottomRightPoint().getLongitude(),
minLat = box.getBottomRightPoint().getLatitude(),
maxLat = box.getTopLeftPoint().getLatitude();
// Add a little delta to avoid drawing on the edge...
double diffLon = maxLon - minLon, diffLat = maxLat - minLat;