/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2016, Open Source Geospatial Foundation (OSGeo)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*/
package org.geotools.renderer.style;
import java.awt.Graphics2D;
import java.awt.Shape;
import java.awt.geom.AffineTransform;
import java.awt.geom.Arc2D;
import java.awt.geom.GeneralPath;
import java.awt.geom.Rectangle2D;
import java.awt.geom.Rectangle2D.Double;
import java.util.logging.Logger;
import org.geotools.renderer.style.shape.ExplicitBoundsShape;
import org.opengis.feature.Feature;
import org.opengis.filter.expression.Expression;
/**
* Factory with additional "well known" marks for compatibility with other applications.
* <p>
* We are doubling up on these providing an aleais to make things easier:
* <ul>
* <li>qgis://star</li>
* <li>qgis://regular_star and regular_star</li>
* </ul>
*
*
* @author Jonathan Moules (LightPear)
*
* @source $URL$
*/
public class QGISMarkFactory implements MarkFactory {
/** QGIS prefix for explicit reference to QGIS wellknown marks */
private static final String PREFIX = "qgis://";
/** The logger for the rendering module. */
private static final Logger LOGGER = org.geotools.util.logging.Logging
.getLogger("org.geotools.rendering");
/** Tall star for QGIS compatibility */
private static Shape star = star();
/** Tall triangle for QGIS compatibility */
private static Shape triangle = triangle();
/** Upward facing arrow for QGIS compatibility */
private final static Shape arrow = arrow();
private static Shape arrowhead = arrowHead();
private static Shape filled_arrowhead = filledArrowHead();
/** diamond */
private static Shape diamond;
/** pentagon */
private static Shape pentagon;
private static Shape crossFill = crossFill();
private static Shape diagonalHalfSquare = diagonalHalfSquare();
private static Shape halfSquare = halfSquare();
private static Shape hexagon = hexagon();
private static Shape leftHalfTriangle = leftHalfTriangle();
private static Shape rightHalfTriangle = rightHalfTriangle();
private static Shape quarterCricle = quarterCircle();
private static Shape semiCircle = semiCircle();
private static Shape thirdCircle = thirdCircle();
private static Shape quarterSquare = quarterSquare();
static {
// Diamond
GeneralPath diamondPath = new GeneralPath(GeneralPath.WIND_EVEN_ODD);
diamondPath.moveTo(0f, 1f);
diamondPath.lineTo(1f, 0f);
diamondPath.lineTo(0f, -1f);
diamondPath.lineTo(-1f, 0f);
diamondPath.lineTo(0f, 1f);
AffineTransform at = new AffineTransform();
at.scale(.5, .5);
diamondPath.transform(at);
diamond = new ExplicitBoundsShape(diamondPath);
((ExplicitBoundsShape) diamond).setBounds(new Rectangle2D.Double(-.5, .5, 1., 1.));
// Pentagon
GeneralPath pentagonPath = new GeneralPath(GeneralPath.WIND_EVEN_ODD);
pentagonPath.moveTo(0f, 1f);
pentagonPath.lineTo(0.9511f, 0.3090f);
pentagonPath.lineTo(0.5878f, -0.8090f);
pentagonPath.lineTo(-0.5878f, -0.8090f);
pentagonPath.lineTo(-0.9511f, 0.3090f);
pentagonPath.lineTo(0f, 1f);
at = new AffineTransform();
at.scale(.5, .5);
pentagonPath.transform(at);
pentagon = new ExplicitBoundsShape(pentagonPath);
((ExplicitBoundsShape) pentagon).setBounds(new Rectangle2D.Double(-.5, .5, 1., 1.));
}
public Shape getShape(Graphics2D graphics, Expression symbolUrl, Feature feature)
throws Exception {
// cannot handle a null url
if (symbolUrl == null)
return null;
String wellKnownName = symbolUrl.evaluate(feature, String.class);
LOGGER.finer("fetching mark of name " + wellKnownName);
if (wellKnownName.equalsIgnoreCase(PREFIX + "cross")) {
LOGGER.finer("returning qgis cross");
return ShapeMarkFactory.shapes.get("plus");
}
if (wellKnownName.equalsIgnoreCase(PREFIX + "circle")) {
LOGGER.finer("returning qgis circle");
return WellKnownMarkFactory.circle;
}
if (wellKnownName.equalsIgnoreCase(PREFIX + "triangle")) {
LOGGER.finer("returning qgis triangle");
return triangle;
}
if (wellKnownName.equalsIgnoreCase(PREFIX + "equilateral_triangle")
|| wellKnownName.equalsIgnoreCase("equilateral_triangle")) {
LOGGER.finer("returning qgis triangle");
return WellKnownMarkFactory.triangle;
}
// Direct conflict with WellKnownMarkFactory star
if (wellKnownName.equalsIgnoreCase(PREFIX + "star")) {
LOGGER.finer("returning qgis star");
return star;
}
if (wellKnownName.equalsIgnoreCase(PREFIX + "cross2")
|| wellKnownName.equalsIgnoreCase("cross2")) {
LOGGER.finer("returning qgis cross2");
return ShapeMarkFactory.shapes.get("times");
}
// This arrow points up, conflicts with WellKnownMarkFactory.arrow pointing right.
if (wellKnownName.equalsIgnoreCase(PREFIX + "arrow")) {
LOGGER.finer("returning qgis arrow");
return arrow;
}
if (wellKnownName.equalsIgnoreCase(PREFIX + "diamond")
|| wellKnownName.equalsIgnoreCase("diamond")) {
LOGGER.finer("returning qgis diamond");
return diamond;
}
if (wellKnownName.equalsIgnoreCase(PREFIX + "pentagon")
|| wellKnownName.equalsIgnoreCase("pentagon")) {
LOGGER.finer("returning qgis pentagon");
return pentagon;
}
if (wellKnownName.equalsIgnoreCase(PREFIX + "rectangle")
|| wellKnownName.equalsIgnoreCase("rectangle")) {
LOGGER.finer("returning qgis rectangle");
return WellKnownMarkFactory.square;
}
if (wellKnownName.equalsIgnoreCase(PREFIX + "regular_star")
|| wellKnownName.equalsIgnoreCase("regular_star")) {
LOGGER.finer("returning qgis regular_star");
return WellKnownMarkFactory.star;
}
if (wellKnownName.equalsIgnoreCase(PREFIX + "line")
|| wellKnownName.equalsIgnoreCase("line")) {
LOGGER.finer("returning qgis line");
return ShapeMarkFactory.shapes.get("vertline");
}
if (wellKnownName.equalsIgnoreCase(PREFIX + "arrowhead")
|| wellKnownName.equalsIgnoreCase("arrowhead")) {
LOGGER.finer("returning qgis arrowhead");
return arrowhead;
}
if (wellKnownName.equalsIgnoreCase(PREFIX + "filled_arrowhead")
|| wellKnownName.equalsIgnoreCase("filled_arrowhead")) {
LOGGER.finer("returning qgis filled_arrowhead");
return filled_arrowhead;
}
if (wellKnownName.equalsIgnoreCase(PREFIX + "crossfill")
|| wellKnownName.equalsIgnoreCase("crossfill")) {
LOGGER.finer("returning qgis filled cross");
return crossFill;
}
if (wellKnownName.equalsIgnoreCase(PREFIX + "diagonalhalfsquare")
|| wellKnownName.equalsIgnoreCase("diagonalhalfsquare")) {
LOGGER.finer("returning qgis diagonal half square");
return diagonalHalfSquare;
}
if (wellKnownName.equalsIgnoreCase(PREFIX + "HalfSquare")
|| wellKnownName.equalsIgnoreCase("HalfSquare")) {
LOGGER.finer("returning qgis half square");
return halfSquare;
}
if (wellKnownName.equalsIgnoreCase(PREFIX + "hexagon")
|| wellKnownName.equalsIgnoreCase("hexagon")) {
LOGGER.finer("returning qgis hexagon");
return hexagon;
}
if (wellKnownName.equalsIgnoreCase(PREFIX + "lefthalftriangle")
|| wellKnownName.equalsIgnoreCase("lefthalftriangle")) {
LOGGER.finer("returning qgis lefthalftriangle");
return leftHalfTriangle;
}
if (wellKnownName.equalsIgnoreCase(PREFIX + "righthalftriangle")
|| wellKnownName.equalsIgnoreCase("righthalftriangle")) {
LOGGER.finer("returning qgis righthalftriangle");
return rightHalfTriangle;
}
if (wellKnownName.equalsIgnoreCase(PREFIX + "quartercircle")
|| wellKnownName.equalsIgnoreCase("quartercircle")) {
LOGGER.finer("returning qgis quartercircle");
return quarterCricle;
}
if (wellKnownName.equalsIgnoreCase(PREFIX + "semicircle")
|| wellKnownName.equalsIgnoreCase("semicircle")) {
LOGGER.finer("returning qgis semicircle");
return semiCircle;
}
if (wellKnownName.equalsIgnoreCase(PREFIX + "thirdcircle")
|| wellKnownName.equalsIgnoreCase("thirdcircle")) {
LOGGER.finer("returning qgis thirdcircle");
return thirdCircle;
}
if (wellKnownName.equalsIgnoreCase(PREFIX + "quartersquare")
|| wellKnownName.equalsIgnoreCase("quartersquare")) {
LOGGER.finer("returning qgis quartersquare");
return quarterSquare;
}
return null;
}
private static Shape arrow() {
GeneralPath arrowPath = new GeneralPath(GeneralPath.WIND_EVEN_ODD);
arrowPath.moveTo(.3f, -.3f);
arrowPath.lineTo(.5f, .0f);
arrowPath.lineTo(.3f, .3f);
arrowPath.lineTo(.3f, .1f);
arrowPath.lineTo(-.5f, .1f);
arrowPath.lineTo(-.5f, -.1f);
arrowPath.lineTo(.3f, -.1f);
arrowPath.lineTo(.3f, -.3f);
AffineTransform at = new AffineTransform();
at.rotate(Math.PI / 2.0);
arrowPath.transform(at);
ExplicitBoundsShape shape = new ExplicitBoundsShape(arrowPath);
shape.setBounds(new Rectangle2D.Double(-.5, .5, 1., 1.));
return shape;
}
private static Shape star() {
GeneralPath starPath = new GeneralPath(GeneralPath.WIND_EVEN_ODD);
starPath.moveTo(0f, 0.5f);
starPath.lineTo(0.2f, 0.1f);
starPath.lineTo(0.5f, 0.1f);
starPath.lineTo(0.2f, -0.1f);
starPath.lineTo(0.5f, -0.5f);
starPath.lineTo(0f, -0.2f);
starPath.lineTo(-0.5f, -0.5f); // max = 7.887
starPath.lineTo(-0.2f, -0.1f);
starPath.lineTo(-0.5f, 0.1f);
starPath.lineTo(-0.2f, 0.1f);
starPath.lineTo(0f, 0.5f);
ExplicitBoundsShape shape = new ExplicitBoundsShape(starPath);
shape.setBounds(new Rectangle2D.Double(-.5, .5, 1., 1.));
return shape;
}
private static Shape arrowHead() {
GeneralPath gp = new GeneralPath();
gp.moveTo(-0.5f, 0.4f);
gp.lineTo(0, 0);
gp.lineTo(-0.5f, -0.4f);
ExplicitBoundsShape arrowHead = new ExplicitBoundsShape(gp);
arrowHead.setBounds(new Rectangle2D.Double(-0.5, -0.5, 1, 1));
return arrowHead;
}
private static Shape filledArrowHead() {
GeneralPath gp = new GeneralPath();
gp.moveTo(-0.5f, 0.4f);
gp.lineTo(0, 0);
gp.lineTo(-0.5f, -0.4f);
gp.closePath();
ExplicitBoundsShape filledArrowHead = new ExplicitBoundsShape(gp);
filledArrowHead.setBounds(new Rectangle2D.Double(-0.5, -0.5, 1, 1));
return filledArrowHead;
}
private static Shape triangle() {
GeneralPath trianglePath = new GeneralPath(GeneralPath.WIND_EVEN_ODD);
trianglePath.moveTo(0f, 1f);
trianglePath.lineTo(0.866f, -.8f);
trianglePath.lineTo(-0.866f, -.8f);
trianglePath.lineTo(0f, 1f);
AffineTransform at = new AffineTransform();
at.translate(0, -.10);
at.scale(.5, .5);
trianglePath.transform(at);
ExplicitBoundsShape shape = new ExplicitBoundsShape(trianglePath);
shape.setBounds(new Rectangle2D.Double(-.5, .5, 1., 1.));
return shape;
}
private static Shape crossFill() {
GeneralPath path = new GeneralPath(GeneralPath.WIND_EVEN_ODD);
path.moveTo(-.5f, -0.1f);
path.lineTo(-.5f, -0.1f);
path.lineTo(-.5f, 0.1f);
path.lineTo(-0.1f, 0.1f);
path.lineTo(-0.1f, .5f);
path.lineTo(0.1f, .5f);
path.lineTo(0.1f, 0.1f);
path.lineTo(.5f, 0.1f);
path.lineTo(.5f, -0.1f);
path.lineTo(0.1f, -0.1f);
path.lineTo(0.1f, -.5f);
path.lineTo(-0.1f, -.5f);
path.lineTo(-0.1f, -0.1f);
path.lineTo(-.5f, -0.1f);
ExplicitBoundsShape shape = new ExplicitBoundsShape(path);
shape.setBounds(new Rectangle2D.Double(-.5, .5, 1., 1.));
return shape;
}
private static Shape diagonalHalfSquare() {
// (bottom-left half)
GeneralPath path = new GeneralPath(GeneralPath.WIND_EVEN_ODD);
path.moveTo(-.5f, -.5f);
path.lineTo(.5f, -.5f);
path.lineTo(-.5f, .5f);
path.lineTo(-.5f, -.5f);
ExplicitBoundsShape shape = new ExplicitBoundsShape(path);
shape.setBounds(new Rectangle2D.Double(-.5, .5, 1., 1.));
return shape;
}
private static Shape hexagon() {
GeneralPath path = new GeneralPath(GeneralPath.WIND_EVEN_ODD);
path.moveTo(-0.4330f, -0.25f);
path.lineTo(-0.4330f, 0.25f);
path.lineTo(0f, .5f);
path.lineTo(0.4330f, 0.25f);
path.lineTo(0.4330f, -0.25f);
path.lineTo(0f, -.5f);
path.lineTo(-0.4330f, -0.25f);
ExplicitBoundsShape shape = new ExplicitBoundsShape(path);
shape.setBounds(new Rectangle2D.Double(-.5, .5, 1., 1.));
return shape;
}
private static Shape leftHalfTriangle() {
GeneralPath path = new GeneralPath(GeneralPath.WIND_EVEN_ODD);
path.moveTo(0f, -.5f);
path.lineTo(0f, .5f);
path.lineTo(.5f, -.5f);
path.lineTo(0f, -.5f);
ExplicitBoundsShape shape = new ExplicitBoundsShape(path);
shape.setBounds(new Rectangle2D.Double(-.5, .5, 1., 1.));
return shape;
}
private static Shape rightHalfTriangle() {
GeneralPath path = new GeneralPath(GeneralPath.WIND_EVEN_ODD);
path.moveTo(0f, -.5f);
path.lineTo(0f, .5f);
path.lineTo(-.5f, -.5f);
path.lineTo(0f, -.5f);
ExplicitBoundsShape shape = new ExplicitBoundsShape(path);
shape.setBounds(new Rectangle2D.Double(-.5, .5, 1., 1.));
return shape;
}
private static Shape quarterCircle() {
// Top-left quarter
Shape d = new Arc2D.Double(new Rectangle2D.Double(-.5, -.5, 1., 1.), 180, 90, Arc2D.PIE);
ExplicitBoundsShape shape = new ExplicitBoundsShape(d);
shape.setBounds(new Rectangle2D.Double(-.5, .5, 1., 1.));
return shape;
}
private static Shape semiCircle() {
// Top half
Arc2D.Double d = new Arc2D.Double(new Rectangle2D.Double(-.5, -.5, 1., 1.), 180., 180.,
Arc2D.PIE);
ExplicitBoundsShape shape = new ExplicitBoundsShape(d);
shape.setBounds(new Rectangle2D.Double(-.5, .5, 1., 1.));
return shape;
}
private static Shape thirdCircle() {
// Top-left third
Arc2D.Double d = new Arc2D.Double(new Rectangle2D.Double(-.5, -.5, 1., 1.), 150., 120.,
Arc2D.PIE);
ExplicitBoundsShape shape = new ExplicitBoundsShape(d);
shape.setBounds(new Rectangle2D.Double(-.5, .5, 1., 1.));
return shape;
}
private static Shape halfSquare() {
// Left half
Shape s = new Double(-.5, -.5, .5, 1.);
ExplicitBoundsShape shape = new ExplicitBoundsShape(s);
shape.setBounds(new Rectangle2D.Double(-.5, -.5, 1., 1.));
return shape;
}
private static Shape quarterSquare() {
// Top-left quarter
Shape s = new Double(-.5, 0, .5, .5);
ExplicitBoundsShape shape = new ExplicitBoundsShape(s);
shape.setBounds(new Rectangle2D.Double(-.5, .5, 1., 1.));
return shape;
}
}