Package mil.nga.geopackage.tiles.features

Class FeaturePreview

  • public class FeaturePreview
extends Object
    Feature Preview for drawing a preview tile from a feature table
    Since:
    3.5.0
    Author:
    osbornb

    • Constructor Detail

      • FeaturePreview

        public FeaturePreview​(GeoPackage geoPackage,
                      String featureTable)
        Constructor
        Parameters:
        geoPackage - GeoPackage
        featureTable - feature table

      • FeaturePreview

        public FeaturePreview​(GeoPackage geoPackage,
                      FeatureDao featureDao)
        Constructor
        Parameters:
        geoPackage - GeoPackage
        featureDao - feature DAO

      • FeaturePreview

        public FeaturePreview​(GeoPackage geoPackage,
                      FeatureTiles featureTiles)
        Constructor
        Parameters:
        geoPackage - GeoPackage
        featureTiles - feature tiles

    • Method Detail

      • getGeoPackage

        public GeoPackage getGeoPackage()
        Get the GeoPackage
        Returns:
        GeoPackage

      • getFeatureTiles

        public FeatureTiles getFeatureTiles()
        Get the feature tiles
        Returns:
        feature tiles

      • isManual

        public boolean isManual()
        Is manual bounding box query enabled for non indexed and empty contents bounds feature tables
        Returns:
        manual flag

      • setManual

        public void setManual​(boolean manual)
        Set the manual bounding box query flag for non indexed and empty contents bounds feature tables
        Parameters:
        manual - manual flag

      • getBufferPercentage

        public double getBufferPercentage()
        Get the buffer percentage for drawing empty non features edges (i.e. 0.1 equals 10% buffer edges)
        Returns:
        buffer percentage (greater than or equal to 0.0 and less than 0.5)

      • setBufferPercentage

        public void setBufferPercentage​(double bufferPercentage)
        Set the buffer percentage for drawing empty non features edges (i.e. 0.1 equals 10% buffer edges)
        Parameters:
        bufferPercentage - buffer percentage (greater than or equal to 0.0 and less than 0.5)

      • getColumns

        public Set<String> getColumns()
        Get the query columns
        Returns:
        columns

      • addColumns

        public void addColumns​(Collection<String> columns)
        Add query columns
        Parameters:
        columns - columns

      • addColumns

        public void addColumns​(String[] columns)
        Add query columns
        Parameters:
        columns - columns

      • addColumn

        public void addColumn​(String column)
        Add a query column
        Parameters:
        column - column

      • getWhere

        public String getWhere()
        Get the where clause
        Returns:
        where

      • setWhere

        public void setWhere​(String where)
        Set the where clause
        Parameters:
        where - where

      • appendWhere

        public void appendWhere​(String where)
        Append to the where clause
        Parameters:
        where - where

      • getWhereArgs

        public String[] getWhereArgs()
        Get the where arguments
        Returns:
        where args

      • setWhereArgs

        public void setWhereArgs​(String[] whereArgs)
        Set the where arguments
        Parameters:
        whereArgs - where arguments

      • getLimit

        public Integer getLimit()
        Get the feature query limit
        Returns:
        limit

      • setLimit

        public void setLimit​(Integer limit)
        Set the feature query limit
        Parameters:
        limit - limit

      • draw

        public BufferedImage draw()
        Draw a preview image
        Returns:
        preview image