Improve markers rendering.

This commit is contained in:
Holt59 2018-03-03 23:25:48 +01:00
parent 2f1fa81a58
commit 55dfcbd0fe
3 changed files with 53 additions and 88 deletions

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res/marker_mask.bin Normal file

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@ -91,19 +91,20 @@ public class BasicDrawing extends JPanel implements Drawing {
private class BasicMarkerOverlay extends BasicOverlay implements MarkerOverlay { private class BasicMarkerOverlay extends BasicOverlay implements MarkerOverlay {
// Default marker width
private static final int DEFAULT_MARKER_WIDTH = 20;
// Point of the marker. // Point of the marker.
private Point point; private Point point;
// Color of the marker. // Color of the marker.
private final Color color; private final Color color;
// Image to draw
private final BufferedImage image;
public BasicMarkerOverlay(Point point, Color color) { public BasicMarkerOverlay(Point point, Color color) {
super(); super();
this.point = point; this.point = point;
this.color = color; this.color = color;
this.image = MarkerUtils.getMarkerForColor(color);
} }
@Override @Override
@ -128,12 +129,8 @@ public class BasicDrawing extends JPanel implements Drawing {
int px = BasicDrawing.this.projx(getPoint().getLongitude()); int px = BasicDrawing.this.projx(getPoint().getLongitude());
int py = BasicDrawing.this.projy(getPoint().getLatitude()); int py = BasicDrawing.this.projy(getPoint().getLatitude());
BufferedImage img = MarkerUtils.getMarkerForColor(color); graphics.drawImage(this.image, px - this.image.getWidth() / 2, py - this.image.getHeight(),
Graphics2D gr = img.createGraphics(); BasicDrawing.this);
double scale = DEFAULT_MARKER_WIDTH / (double) img.getHeight();
gr.scale(scale, scale);
graphics.drawImage(img, px - img.getWidth() / 2, py - img.getHeight(), BasicDrawing.this);
} }
}; };

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@ -1,19 +1,15 @@
package org.insa.graphics.drawing.overlays; package org.insa.graphics.drawing.overlays;
import java.awt.Color; import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.image.BufferedImage; import java.awt.image.BufferedImage;
import java.io.DataInputStream;
import java.io.FileInputStream;
public class MarkerUtils { public class MarkerUtils {
/** private static final String MARKER_MASK_FILE = "res/marker_mask.bin";
* Return a color mapping with the given color as the main color.
*
* @param color
* @return
*/
protected static Color[] getColorMapping(Color color) {
return new Color[] { new Color(0, 0, 0, 0), color, Color.BLACK };
}
/** /**
* Create a Bitmap representing a marker of the given color. * Create a Bitmap representing a marker of the given color.
@ -23,83 +19,55 @@ public class MarkerUtils {
*/ */
public static BufferedImage getMarkerForColor(Color color) { public static BufferedImage getMarkerForColor(Color color) {
// create image // create image
BufferedImage image = new BufferedImage(MARKER_MASK[0].length, MARKER_MASK.length, int[][] mask = readMarkerMask();
BufferedImage.TYPE_4BYTE_ABGR); BufferedImage image = new BufferedImage(mask[0].length, mask.length, BufferedImage.TYPE_4BYTE_ABGR);
Color[] map = getColorMapping(color); // Color[] map = getColorMapping(color);
int rgb = color.getRGB() & 0x00ffffff;
for (int i = 0; i < image.getHeight(); ++i) { for (int i = 0; i < image.getHeight(); ++i) {
for (int j = 0; j < image.getWidth(); ++j) { for (int j = 0; j < image.getWidth(); ++j) {
image.setRGB(j, i, map[MARKER_MASK[i][j]].getRGB()); // image.setRGB(j, i, map[MARKER_MASK[i][j]].getRGB());
image.setRGB(j, i, rgb | (mask[i][j] << 24));
} }
} }
BufferedImage scaleImage = new BufferedImage(28, 48, BufferedImage.TYPE_4BYTE_ABGR);
Graphics2D graphics = scaleImage.createGraphics();
graphics.drawImage(image.getScaledInstance(28, 48, Image.SCALE_SMOOTH), 0, 0, null);
graphics.dispose();
// Create Bitmap and return it. // Create Bitmap and return it.
return image; return scaleImage;
}
// Mask cache
private static int[][] MASK_CACHE = null;
/**
* @return Retrieve the mask from the mask file or from the cache.
*/
private static int[][] readMarkerMask() {
if (MASK_CACHE == null) {
try {
DataInputStream dis = new DataInputStream(new FileInputStream(MARKER_MASK_FILE));
int nrows = dis.readInt();
int ncols = dis.readInt();
MASK_CACHE = new int[nrows][ncols];
for (int i = 0; i < nrows; ++i) {
for (int j = 0; j < ncols; ++j) {
MASK_CACHE[i][j] = dis.readUnsignedByte();
}
}
dis.close();
}
catch (Exception e) {
e.printStackTrace();
MASK_CACHE = null;
}
}
return MASK_CACHE;
} }
// Mask
private static byte[][] MARKER_MASK = new byte[][] {
// @formatter:off
{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
{0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0},
{0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0},
{0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0},
{0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0},
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};
} }