private void traceContour(
float[][] grid,
int[] cell,
double level,
double west,
double north,
double cellSize,
GeoSet levelGeoSet) {
GeoPath geoPath = traceContour(grid, cell, level, west, north, cellSize);
if (geoPath != null && geoPath.getPointsCount() > 1) {
levelGeoSet.add(geoPath);
}
}
public GeoObject operate(GeoGrid geoGrid, double firstContourLevel, double lastContourLevel) {
flags = new boolean[geoGrid.getRows()][geoGrid.getCols()];
GeoSet geoSet = new GeoSet();
final int nlevels = (int) ((lastContourLevel - firstContourLevel) / interval) + 1;
if (treatDegreeJump) {
GeoSet levelGeoSet = new GeoSet();
this.contourLevel(geoGrid, 0.f, levelGeoSet);
levelGeoSet.setName(Float.toString(0.f));
geoSet.add(levelGeoSet);
}
for (int i = 0; i < nlevels; ++i) {
final double contourLevel = firstContourLevel + i * interval;
GeoSet levelGeoSet = new GeoSet();
this.contourLevel(geoGrid, contourLevel, levelGeoSet);
levelGeoSet.setName(Double.toString(contourLevel));
geoSet.add(levelGeoSet);
}
return geoSet;
}
/**
* Exports map features to a file. The user is asked to select a file path to a new file. This is
* designed for vector data.
*
* @param exporter The GeoSetExporter to export the exporterMap. If null, the user is asked to
* select a GeoSetExporter from a list.
* @param geoSet The GeoSet to export.
* @param fileName A default file name without extension. If null, the name of the GeoSet is used.
* @param frame The Frame for which the dialog for selecting a file is displayed.
* @param pageFormat The page format for exporting to vector graphics formats (not georeferenced
* formats). If null and the exporter is a VectorGraphicsExporter, the page format of the
* exporter is used. If this is also null, a default page format is used that includes the
* whole GeoSet to export.
* @param askScale If true and if exporting to a vector graphics format (not a georeferenced GIS
* format), the user is asked for a scale that is applied to the data prior to export.
*/
public static void export(
GeoSetExporter exporter,
GeoSet geoSet,
String fileName,
Frame frame,
PageFormat pageFormat,
boolean askScale,
String applicationName,
String documentName,
String documentAuthor,
String documentSubject,
String documentKeyWords,
ProgressIndicator progressIndicator) {
try {
if (exporter == null) {
exporter = GeoExportGUI.askExporter(frame);
}
if (exporter == null) {
return; // user cancelled
}
// construct a message for the file selection dialog
exporter.setApplicationName(applicationName);
exporter.setDocumentName(documentName);
exporter.setDocumentAuthor(documentAuthor);
exporter.setDocumentSubject(documentSubject);
exporter.setDocumentKeyWords(documentKeyWords);
String msg = "Save " + exporter.getFileFormatName() + " File";
// construct a file name
if (fileName == null) {
fileName = geoSet.getName();
}
String ext = exporter.getFileExtension();
fileName = FileUtils.forceFileNameExtension(fileName, ext);
// ask the user for a file.
String filePath = FileUtils.askFile(frame, msg, fileName, false, ext);
if (filePath == null) {
return; // user canceled
}
// ask the user for a scale for graphics file formats if the exporter
// does not have a valid page format. Don't do this for georeferenced
// GIS export formats.
if (exporter instanceof VectorGraphicsExporter) {
VectorGraphicsExporter gExporter = (VectorGraphicsExporter) exporter;
if (pageFormat == null) {
pageFormat = gExporter.getPageFormat();
}
if (pageFormat == null) {
pageFormat = new PageFormat();
pageFormat.setAutomatic(true);
Rectangle2D box = geoSet.getBounds2D(GeoObject.UNDEFINED_SCALE);
pageFormat.setPageWorldCoordinates(box);
}
if (askScale) {
if (!GeoExportGUI.askScale(exporter, pageFormat, geoSet, frame)) {
return;
}
} else {
gExporter.setPageFormat(pageFormat);
}
} else if (exporter instanceof RasterImageExporter) {
String rasterSizeMsg = "Please enter the width of the image in pixels:";
String rasterTitle = "Image Width";
String widthStr =
(String)
JOptionPane.showInputDialog(
frame,
rasterSizeMsg,
rasterTitle,
JOptionPane.QUESTION_MESSAGE,
null,
null,
new Integer(1000));
if (widthStr == null) {
return; // user canceled
}
try {
int width = (int) Double.parseDouble(widthStr);
((RasterImageExporter) exporter).setImageWidth(width);
} catch (NumberFormatException exc) {
ErrorDialog.showErrorDialog("Please enter a valid number for the image width.");
return;
}
}
if (progressIndicator == null) {
GeoExportGUI.export(exporter, geoSet, filePath, null);
} else {
new GeoExportTask(exporter, geoSet, filePath, progressIndicator).execute();
}
} catch (Exception e) {
// show an error message.
String msg = "The data could not be exported.";
ika.utils.ErrorDialog.showErrorDialog(msg, "Export Error", e, frame);
e.printStackTrace();
}
}
