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リビジョン 972d1973

高徹 高橋 徹 さんが約9年前に追加

シェープファイルからポリラインデータを読み込み表示

  • ファイルダイアログで選択したシェープファイルを読み込む
  • 緯度経度座標系を1度100kmで換算したメートル直交座標系に投影

差分を表示:

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&laquo; <a href="http://www.naturalearthdata.com/downloads/10m-physical-vectors/">1:10m Physical Vectors</a>&nbsp;
&laquo; <a href="http://www.naturalearthdata.com/downloads/">Downloads</a>&nbsp;
<div class="post" id="post-449">
<h2>Coastline</h2>
<div class="entry">
<div class="downloadPromoBlock" style="float: left;">
<div style="float: left; width: 170px;"><img class="downloadPromoImage" title="coast_thumb" src="http://www.naturalearthdata.com/wp-content/uploads/2009/09/coast_thumb.gif" alt="coast_thumb" width="150" height="97" align="left" /></div>
<div style="float: left; width: 410px;"><em>Includes major islands. </em></p>
<div class="download-link-div">
<a class="download-link" rel="nofollow" title="Downloaded 14037 times (Shapefile, geoDB, or TIFF format)" onclick="if (window.urchinTracker) urchinTracker ('http://www.naturalearthdata.com/http//www.naturalearthdata.com/download/10m/physical/ne_10m_coastline.zip');" href="http://www.naturalearthdata.com/http//www.naturalearthdata.com/download/10m/physical/ne_10m_coastline.zip" onclick="javascript:_gaq.push(['_trackEvent','download','http://www.naturalearthdata.com/http//www.naturalearthdata.com/download/10m/physical/ne_10m_coastline.zip']);">Download coastline</a> <span class="download-link-span">(2.92 MB) version 2.0.0</span>
</div>
<p><span id="more-449"></span></div>
</div>
<div class="downloadMainBlock" style="float: left;"><strong>About</strong></p>
<p>Ocean coastline, including major islands. Coastline is matched to land and water polygons. The Caspian Sea, which is technically a lake, is included. The ocean coastline, the foundation for building all of NEV, primarily derives from World Data Bank 2 with modest generalization applied via line simplification in Adobe Illustrator. The Antarctica coast derives from NASA Mosaic of Antarctica.</p>
<p><em>(below) Yucatan peninsula, Cuba, and Hispaniola.</em></p>
<p><img class="alignnone size-full wp-image-1056" title="coast_banner" src="http://www.naturalearthdata.com/wp-content/uploads/2009/09/coast_banner.gif" alt="coast_banner" width="580" height="150" /></p>
<p><strong>Issues</strong></p>
<p>World Data Bank 2 coastlines have suspect accuracy for certain parts of the world, including northern Russia, southern Chile, and most egregiously, the west coast of the United States extending to the Baja Peninsula, Mexico, where the coast was approximately 7 km east of where it should be. The west coast of the US was corrected on NEV; other areas were not.</p>
<p>Does not include rank 6, 7, or 8 coastlines from the <a href="http://www.naturalearthdata.com/downloads/10m-physical-vectors/10m-minor-islands/" >minor islands</a>. Some rank 5 coastline should be reclassified as rank 6.</p>
<p><strong>Resources</strong></p>
<ul>
<li><a href="http://www.evl.uic.edu/pape/data/WDB/" onclick="javascript:_gaq.push(['_trackEvent','outbound-article','http://www.evl.uic.edu/pape/data/WDB/']);">World Data Bank 2</a></li>
<li><a href="http://nsidc.org/data/docs/agdc/nsidc0280_scambos/" onclick="javascript:_gaq.push(['_trackEvent','outbound-article','http://nsidc.org/data/docs/agdc/nsidc0280_scambos/']);">Mosaic of Antarctica</a></li>
</ul>
<p><strong>Version History</strong></p>
<ul>
<li>
<a rel="nofollow" title="Download version 2.0.0 of ne_10m_coastline.zip" href="http://www.naturalearthdata.com/http//www.naturalearthdata.com/download/10m/physical/ne_10m_coastline.zip" onclick="javascript:_gaq.push(['_trackEvent','download','http://www.naturalearthdata.com/http//www.naturalearthdata.com/download/10m/physical/ne_10m_coastline.zip']);">2.0.0</a>
</li>
<li>
1.3.0
</li>
<li>
1.1.0
</li>
<li>
1.0.0
</li>
</ul>
<p><a href="https://github.com/nvkelso/natural-earth-vector/blob/master/CHANGELOG" onclick="javascript:_gaq.push(['_trackEvent','outbound-article','http://github.com/nvkelso/natural-earth-vector/blob/master/CHANGELOG']);">The master changelog is available on Github »</a>
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map/ne10m/ne_10m_coastline.VERSION.txt
3.0.0
map/ne10m/ne_10m_coastline.prj
GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]
nbproject/project.properties
annotation.processing.enabled=true
annotation.processing.enabled.in.editor=false
annotation.processing.processor.options=
annotation.processing.processors.list=
annotation.processing.run.all.processors=true
annotation.processing.source.output=${build.generated.sources.dir}/ap-source-output
......
dist.javadoc.dir=${dist.dir}/javadoc
endorsed.classpath=
excludes=
file.reference.shapefilereader-1.0.jar=lib/shapefilereader-1.0.jar
includes=**
# Non-JavaFX jar file creation is deactivated in JavaFX 2.0+ projects
jar.archive.disabled=true
jar.compress=false
javac.classpath=\
${javafx.classpath.extension}
${javafx.classpath.extension}:\
${file.reference.shapefilereader-1.0.jar}
# Space-separated list of extra javac options
javac.compilerargs=
javac.deprecation=false
javac.external.vm=false
javac.modulepath=
javac.processormodulepath=\
${javac.modulepath}
javac.processorpath=\
${javac.classpath}
javac.source=1.8
......
manifest.custom.permissions=
manifest.file=manifest.mf
meta.inf.dir=${src.dir}/META-INF
mkdist.disabled=false
platform.active=default_platform
run.classpath=\
${dist.jar}:\
src/com/torutk/tinymap/TinyMapException.java
/*
* © 2016 Toru Takahashi
*/
package com.torutk.tinymap;
/**
*
* @author Toru Takahashi
*/
public class TinyMapException extends Exception {
/**
* Creates a new instance of <code>TinyMapException</code> without detail
* message.
*/
public TinyMapException() {
}
/**
* Constructs an instance of <code>TinyMapException</code> with the
* specified detail message.
*
* @param msg the detail message.
*/
public TinyMapException(String msg) {
super(msg);
}
public TinyMapException(String message, Throwable cause) {
super(message, cause);
}
public TinyMapException(Throwable cause) {
super(cause);
}
}
src/com/torutk/tinymap/TinyMapModel.java
*/
package com.torutk.tinymap;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import java.util.function.Function;
import java.util.stream.Stream;
import javafx.geometry.Point2D;
import org.nocrala.tools.gis.data.esri.shapefile.ShapeFileReader;
import org.nocrala.tools.gis.data.esri.shapefile.ValidationPreferences;
import org.nocrala.tools.gis.data.esri.shapefile.exception.InvalidShapeFileException;
import org.nocrala.tools.gis.data.esri.shapefile.shape.AbstractShape;
import org.nocrala.tools.gis.data.esri.shapefile.shape.PointData;
import org.nocrala.tools.gis.data.esri.shapefile.shape.ShapeType;
import org.nocrala.tools.gis.data.esri.shapefile.shape.shapes.PolylineShape;
/**
*
......
*/
public class TinyMapModel {
private File mapFile;
private List<TinyMapPolyline> polylines;
private List<TinyMapPolyline> polylines = new ArrayList<>();
private Function<PointData, Point2D> projection;
public TinyMapModel(File selected) {
mapFile = selected;
projection = p -> new Point2D(p.getX() * 100_000, p.getY() * 100_000); // 1度100kmとした直交座標変換
}
public void setProjection(Function<PointData, Point2D> projection) {
this.projection = projection;
}
public Stream<TinyMapPolyline> stream() {
return polylines.stream();
}
public void loadLines() {
polylines = new ArrayList<>();
loadTestPattern();
public void loadLines() throws TinyMapException {
polylines.clear();
ValidationPreferences preferences = new ValidationPreferences();
preferences.setAllowUnlimitedNumberOfPointsPerShape(true);
try (InputStream inStream = new BufferedInputStream(new FileInputStream(mapFile))) {
ShapeFileReader reader = new ShapeFileReader(inStream, preferences);
AbstractShape shape = reader.next();
while (shape != null) {
if (shape.getShapeType() != ShapeType.POLYLINE) {
continue;
}
PolylineShape polyline = (PolylineShape) shape;
for (int i = 0; i < polyline.getNumberOfParts(); i++) {
TinyMapPolyline mapPolyline = createMapPolylineFrom(polyline, i);
polylines.add(mapPolyline);
}
shape = reader.next();
}
} catch (IOException | InvalidShapeFileException ex) {
throw new TinyMapException("シェープファイル読み込み時に例外発生", ex);
}
}
TinyMapPolyline createMapPolylineFrom(PolylineShape shape, int part) {
PointData[] gcsPoints = shape.getPointsOfPart(part);
double[] xArray = new double[gcsPoints.length];
double[] yArray = new double[gcsPoints.length];
for (int i = 0; i < gcsPoints.length; i++) {
Point2D pcsPoint = projection.apply(gcsPoints[i]);
xArray[i] = pcsPoint.getX();
yArray[i] = pcsPoint.getY();
}
return new TinyMapPolyline(xArray, yArray);
}
private void loadTestPattern() {
for (int lat = -90; lat <= 90; lat += 10) {
double[] xs = new double[36];
src/com/torutk/tinymap/TinyMapViewController.java
*/
package com.torutk.tinymap;
import java.io.File;
import java.net.URL;
import java.nio.file.Paths;
import java.util.ResourceBundle;
import javafx.beans.property.DoubleProperty;
import javafx.beans.property.SimpleDoubleProperty;
......
import javafx.geometry.Point2D;
import javafx.scene.canvas.Canvas;
import javafx.scene.canvas.GraphicsContext;
import javafx.scene.control.Alert;
import javafx.scene.control.ComboBox;
import javafx.scene.control.Label;
import javafx.scene.layout.Pane;
import javafx.scene.paint.Color;
import javafx.scene.transform.Affine;
import javafx.stage.FileChooser;
import javafx.stage.Screen;
/**
......
private TinyMapModel mapModel;
/**
* 地図データを読み込む。
* ファイル選択ダイアログを表示し、ユーザーが指定したシェープファイルから地図データを読み込む。
*
* @param event
*/
@FXML
private void loadShapefile(ActionEvent event) {
System.out.println("You clicked me!");
mapModel = new TinyMapModel();
mapModel.loadLines();
FileChooser chooser = new FileChooser();
chooser.setTitle("シェープファイルを選択してね");
chooser.setInitialDirectory(Paths.get(System.getProperty("user.dir")).toFile());
chooser.getExtensionFilters().add(new FileChooser.ExtensionFilter("Shapefile", "*.shp"));
File selected = chooser.showOpenDialog(mapCanvas.getScene().getWindow());
mapModel = new TinyMapModel(selected);
try {
mapModel.loadLines();
} catch (TinyMapException ex) {
showError("シェープファイルの読み込みでエラーが発生しました。", ex);
}
drawMapCanvas();
}
......
*/
private void drawMapCanvas() {
clearMapCanvas();
if (mapModel == null) return;
GraphicsContext gc = mapCanvas.getGraphicsContext2D();
gc.setTransform(mapTransform);
gc.setStroke(Color.LIGHTGREEN);
......
scaleLabel.setText(String.format("1/%,d", (int) (1 / (newValue.doubleValue() * dotPitchInMeter))));
});
// 初期縮尺の設定
scaleProperty.set(1 / mapToScale(5_000));
scaleProperty.set(1 / mapToScale(200_000_000));
// ウィンドウサイズの変更に合わせて地図表示用Canvasの大きさを連動
mapCanvas.widthProperty().bind(rootPane.widthProperty().subtract(120));
mapCanvas.heightProperty().bind(rootPane.heightProperty());
......
});
}
/**
* 地図縮尺（例： 1 / 10,000）をAffineのscaleに変換する.
*
......
double mapToScale(double reduce) {
return reduce * dotPitchInMeter;
}
private void showError(String message, Throwable ex) {
Alert alert = new Alert(Alert.AlertType.ERROR);
alert.setTitle("Tiny Map Viewer Message");
alert.setContentText(String.format("%s%n%s", message, ex.getLocalizedMessage()));
alert.showAndWait();
}
}

他の形式にエクスポート: Unified diff