GridGeometry2D к сеточной функции перевода неправильно

Question

Использование GeoTools версии 11,2

import java.awt.Rectangle 


import com.vividsolutions.jts.geom.Envelope 
import org.geotools.coverage.grid.{GeneralGridEnvelope, GridGeometry2D} 
import org.geotools.geometry.jts.ReferencedEnvelope 
import org.geotools.referencing.crs.DefaultGeographicCRS.WGS84 

val minX = -78.523 
val minY = 38.010 
val maxX = -78.451 
val maxY = 38.069 
val width = 400 
val height = 300 

val bounds = new ReferencedEnvelope(new Envelope(minX, maxX, minY, maxY), WGS84) 
val rect = new Rectangle(0, 0, width, height) 
val ggEnvelope = new GeneralGridEnvelope(rect, bounds.getDimension) 
val gm = new GridGeometry2D(ggEnvelope, bounds) 
////////////////// This should be [0, 299] but is [-1, 299]////////////////////////////// 
gm.worldToGrid(bounds.getLowerCorner) 

Answer 1

Законченное с помощью этой функции. Вы можете увидеть что-то подобное для maxX и minY в исходном коде для функции GridGeometry2D.java worldToGrid

val TOL = 1.0E-6 
    val values = Array(0.0) 

    def safeWorldAccess(grid: GridCoverage2D, point: DirectPosition2D): Double = { 
    val trPoint = point.clone() 
    val gridGeom = grid.getGridGeometry 
    if (Math.abs(trPoint.getX - gridGeom.getEnvelope2D.getMinX) <= TOL) { 
     trPoint.setLocation(trPoint.getX + TOL, trPoint.getY) 
    } 

    if (Math.abs(trPoint.getY - gridGeom.getEnvelope2D.getMaxY) <= TOL) { 
    trPoint.setLocation(trPoint.getX, trPoint.getY - TOL) 
    } 
    val gc: GridCoordinates2D = gridGeom.worldToGrid(trPoint) 
    grid.evaluate(gc, values).head 
    }