Examples with PieSectionDataModel org.knime.base.node.viz.pie.datamodel.PieSectionDataModel used on opensource projects

Example 1 with PieSectionDataModel

use of org.knime.base.node.viz.pie.datamodel.PieSectionDataModel in project knime-core by knime.

the class InteractivePieVizModel method addRows2Sections.

/**
 * Adds all rows to the available sections.
 * @throws TooManySectionsException if more sections are created than
 * supported
 */
private void addRows2Sections() throws TooManySectionsException {
    final int pieColIdx = m_model.getColIndex(m_pieColSpec.getName());
    final int aggrColIdx;
    if (m_aggrColSpec == null) {
        aggrColIdx = -1;
    } else {
        aggrColIdx = m_model.getColIndex(m_aggrColSpec.getName());
    }
    for (final DataRow row : m_model) {
        final DataCell pieCell = row.getCell(pieColIdx);
        final DataCell aggrCell;
        if (aggrColIdx < 0) {
            aggrCell = null;
        } else {
            aggrCell = row.getCell(aggrColIdx);
        }
        final Color rowColor = m_model.getRowColor(row);
        PieSectionDataModel section;
        if (pieCell.isMissing()) {
            section = getMissingSection();
        } else {
            section = getSection(pieCell);
            if (section == null) {
                if (m_sections.size() >= PieColumnFilter.MAX_NO_OF_SECTIONS) {
                    throw new TooManySectionsException("Selected pie column contains more than " + PieColumnFilter.MAX_NO_OF_SECTIONS + " unique values.");
                }
                // throw new IllegalArgumentException("No section found for: "
                // + pieCell.toString());
                section = new PieSectionDataModel(pieCell.toString(), Color.BLACK, m_model.supportsHiliting());
                m_sections.add(section);
            }
        }
        section.addDataRow(rowColor, row.getKey(), aggrCell);
    }
}

Example 2 with PieSectionDataModel

use of org.knime.base.node.viz.pie.datamodel.PieSectionDataModel in project knime-core by knime.

the class PiePlotter method setPieSections.

/**
 * Calculates the size of all pie sections.
 * @param vizModel the {@link PieVizModel} that provides visualisation
 * information and the sections
 */
private void setPieSections(final PieVizModel vizModel) {
    final Rectangle2D pieArea = vizModel.getPieArea();
    final Rectangle2D explodedArea = vizModel.getExplodedArea();
    final boolean explode = vizModel.explodeSelectedSections();
    // final double explodePercentage = vizModel.getExplodeMargin();
    final double totalVal = vizModel.getAbsAggregationValue();
    final double arcPerVal = 360 / totalVal;
    final AggregationMethod method = vizModel.getAggregationMethod();
    final PieHiliteCalculator calculator = vizModel.getCalculator();
    final List<PieSectionDataModel> pieSections = vizModel.getSections2Draw();
    final int noOfSections = pieSections.size();
    double startAngle = 0;
    for (int i = 0; i < noOfSections; i++) {
        final PieSectionDataModel section = pieSections.get(i);
        final double value = Math.abs(section.getAggregationValue(method));
        double arcAngle = value * arcPerVal;
        // avoid a rounding gap
        if (i == noOfSections - 1) {
            arcAngle = 360 - startAngle;
        }
        if (arcAngle < PieVizModel.MINIMUM_ARC_ANGLE) {
            LOGGER.debug("Pie section: " + vizModel.createLabel(section) + " angle " + arcAngle + " to small to display." + " Angle updated to set to minimum angle " + PieVizModel.MINIMUM_ARC_ANGLE);
            arcAngle = PieVizModel.MINIMUM_ARC_ANGLE;
        // skip this section
        // section.setPieSection(null, calculator);
        // continue;
        }
        final Rectangle2D bounds;
        // explode selected sections
        if (explode && section.isSelected()) {
            bounds = GeometryUtil.getArcBounds(pieArea, explodedArea, startAngle, arcAngle, 1.0);
        } else {
            bounds = pieArea;
        }
        final Arc2D arc = new Arc2D.Double(bounds, startAngle, arcAngle, Arc2D.PIE);
        section.setPieSection(arc, calculator);
        startAngle += arcAngle;
    }
}

Example 3 with PieSectionDataModel

use of org.knime.base.node.viz.pie.datamodel.PieSectionDataModel in project knime-core by knime.

the class FixedPieDataModel method getClonedSections.

/**
 * @return a real copy of all sections
 */
@SuppressWarnings("unchecked")
public List<PieSectionDataModel> getClonedSections() {
    LOGGER.debug("Entering getClonedSections() of class " + "FixedPieDataModel.");
    final long startTime = System.currentTimeMillis();
    List<PieSectionDataModel> binClones = null;
    try {
        final ByteArrayOutputStream baos = new ByteArrayOutputStream();
        new ObjectOutputStream(baos).writeObject(getSections());
        final ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
        binClones = (List<PieSectionDataModel>) new ObjectInputStream(bais).readObject();
    } catch (final Exception e) {
        final String msg = "Exception while cloning pie sections: " + e.getMessage();
        LOGGER.debug(msg);
        throw new IllegalStateException(msg);
    }
    final long endTime = System.currentTimeMillis();
    final long durationTime = endTime - startTime;
    LOGGER.debug("Time for cloning. " + durationTime + " ms");
    LOGGER.debug("Exiting getClonedSections() of class " + "FixedPieDataModel.");
    return binClones;
}

Example 4 with PieSectionDataModel

use of org.knime.base.node.viz.pie.datamodel.PieSectionDataModel in project knime-core by knime.

the class FixedPieDataModel method loadFromFile.

/**
 * @param directory the directory to write to
 * @param exec the {@link ExecutionMonitor} to provide progress messages
 * @return the data model
 * wasn't valid
 * @throws IOException if a file exception occurs
 * @throws CanceledExecutionException if the operation was canceled
 * @throws InvalidSettingsException if the file is invalid
 */
@SuppressWarnings("unchecked")
public static FixedPieDataModel loadFromFile(final File directory, final ExecutionMonitor exec) throws IOException, CanceledExecutionException, InvalidSettingsException {
    if (exec != null) {
        exec.setProgress(0.0, "Start reading data from file");
    }
    final File settingsFile = new File(directory, CFG_DATA_FILE);
    final FileInputStream is = new FileInputStream(settingsFile);
    final GZIPInputStream inData = new GZIPInputStream(is);
    final ConfigRO config = NodeSettings.loadFromXML(inData);
    final String pieCol = config.getString(CFG_PIE_COL);
    final boolean numericPieCol = config.getBoolean(CFG_NUMERIC_PIE_COL);
    final String aggrCol = config.getString(CFG_AGGR_COL);
    final boolean supportHiliting = config.getBoolean(CFG_HILITING);
    final boolean detailsAvailable = config.getBoolean(CFG_DETAILS);
    if (exec != null) {
        exec.setProgress(0.3, "Loading sections...");
        exec.checkCanceled();
    }
    final Config sectionsConf = config.getConfig(CFG_SECTIONS);
    final int counter = sectionsConf.getInt(CFG_SECTION_COUNT);
    final List<PieSectionDataModel> sections = new ArrayList<PieSectionDataModel>(counter);
    for (int i = 0; i < counter; i++) {
        final Config sectionConf = sectionsConf.getConfig(CFG_SECTION + i);
        sections.add(PieSectionDataModel.loadFromFile(sectionConf, exec));
    }
    if (exec != null) {
        exec.setProgress(0.9, "Loading missing section...");
        exec.checkCanceled();
    }
    final Config missingConf = sectionsConf.getConfig(CFG_MISSING_SECTION);
    final PieSectionDataModel missingSection = PieSectionDataModel.loadFromFile(missingConf, exec);
    final boolean isColorColumn;
    if (config.containsKey(CFG_IS_COLOR_COLUMN)) {
        isColorColumn = config.getBoolean(CFG_IS_COLOR_COLUMN);
    } else {
        isColorColumn = false;
        // reset the color of all elements
        for (final PieSectionDataModel section : sections) {
            section.setColor(Color.BLACK);
        }
    }
    if (exec != null) {
        exec.setProgress(1.0, "Pie data model loaded ");
    }
    // close the stream
    inData.close();
    is.close();
    return new FixedPieDataModel(pieCol, numericPieCol, aggrCol, sections, missingSection, supportHiliting, detailsAvailable, isColorColumn);
}

Example 5 with PieSectionDataModel

use of org.knime.base.node.viz.pie.datamodel.PieSectionDataModel in project knime-core by knime.

the class FixedPieDataModel method getClonedMissingSection.

/**
 * @return a real copy of the missing section
 */
public PieSectionDataModel getClonedMissingSection() {
    LOGGER.debug("Entering getClonedMissingSection() of class " + "FixedPieDataModel.");
    final long startTime = System.currentTimeMillis();
    PieSectionDataModel missingClone = null;
    try {
        final ByteArrayOutputStream baos = new ByteArrayOutputStream();
        new ObjectOutputStream(baos).writeObject(m_missingSection);
        final ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
        missingClone = (PieSectionDataModel) new ObjectInputStream(bais).readObject();
    } catch (final Exception e) {
        final String msg = "Exception while cloning pie sections: " + e.getMessage();
        LOGGER.debug(msg);
        throw new IllegalStateException(msg);
    }
    final long endTime = System.currentTimeMillis();
    final long durationTime = endTime - startTime;
    LOGGER.debug("Time for cloning. " + durationTime + " ms");
    LOGGER.debug("Exiting getClonedMissingSection() of class " + "FixedPieDataModel.");
    return missingClone;
}