71 lines
2.2 KiB
Java
71 lines
2.2 KiB
Java
|
package ch.epfl.alpano;
|
||
|
|
|
||
|
|
import java.io.File;
|
||
|
|
|
||
|
|
import javax.imageio.ImageIO;
|
||
|
|
|
||
|
|
import ch.epfl.alpano.dem.ContinuousElevationModel;
|
||
|
|
import ch.epfl.alpano.dem.DiscreteElevationModel;
|
||
|
|
import ch.epfl.alpano.dem.HgtDiscreteElevationModel;
|
||
|
|
|
||
|
|
import static java.lang.Math.max;
|
||
|
|
import static java.lang.Math.min;
|
||
|
|
import static java.lang.Math.toRadians;
|
||
|
|
|
||
|
|
import java.awt.image.BufferedImage;
|
||
|
|
|
||
|
|
final class DrawPanorama {
|
||
|
|
final static File HGT_FILE = new File("HGT"+File.separatorChar+"N46E007.hgt");
|
||
|
|
|
||
|
|
final static int IMAGE_WIDTH = 500;
|
||
|
|
final static int IMAGE_HEIGHT = 200;
|
||
|
|
|
||
|
|
final static double ORIGIN_LON = toRadians(7.65);
|
||
|
|
final static double ORIGIN_LAT = toRadians(46.73);
|
||
|
|
final static int ELEVATION = 600;
|
||
|
|
final static double CENTER_AZIMUTH = toRadians(180);
|
||
|
|
final static double HORIZONTAL_FOV = toRadians(60);
|
||
|
|
final static int MAX_DISTANCE = 100_000;
|
||
|
|
|
||
|
|
final static PanoramaParameters PARAMS =
|
||
|
|
new PanoramaParameters(new GeoPoint(ORIGIN_LON,
|
||
|
|
ORIGIN_LAT),
|
||
|
|
ELEVATION,
|
||
|
|
CENTER_AZIMUTH,
|
||
|
|
HORIZONTAL_FOV,
|
||
|
|
MAX_DISTANCE,
|
||
|
|
IMAGE_WIDTH,
|
||
|
|
IMAGE_HEIGHT);
|
||
|
|
|
||
|
|
public static void main(String[] as) throws Exception {
|
||
|
|
try (DiscreteElevationModel dDEM =
|
||
|
|
new HgtDiscreteElevationModel(HGT_FILE)) {
|
||
|
|
ContinuousElevationModel cDEM =
|
||
|
|
new ContinuousElevationModel(dDEM);
|
||
|
|
Panorama p = new PanoramaComputer(cDEM)
|
||
|
|
.computePanorama(PARAMS);
|
||
|
|
|
||
|
|
BufferedImage i =
|
||
|
|
new BufferedImage(IMAGE_WIDTH,
|
||
|
|
IMAGE_HEIGHT,
|
||
|
|
BufferedImage.TYPE_INT_RGB);
|
||
|
|
|
||
|
|
for (int x = 0; x < IMAGE_WIDTH; ++x) {
|
||
|
|
for (int y = 0; y < IMAGE_HEIGHT; ++y) {
|
||
|
|
float d = p.distanceAt(x, y);
|
||
|
|
int c = (d == Float.POSITIVE_INFINITY)
|
||
|
|
? 0x87_CE_EB
|
||
|
|
: gray((d - 2_000) / 15_000);
|
||
|
|
i.setRGB(x, y, c);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
ImageIO.write(i, "png", new File("tests/ch/epfl/alpano/niesen.png"));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
private static int gray(double v) {
|
||
|
|
double clampedV = max(0, min(v, 1));
|
||
|
|
int gray = (int) (255.9999 * clampedV);
|
||
|
|
return (gray << 16) | (gray << 8) | gray;
|
||
|
|
}
|
||
|
|
}
|