Merge pull request #2031 from snoe925/master

Tile columns cannot be zero when rounding
locationtech · Feb 28, 2017 · 3517ac2 · 3517ac2
2 parents b8605e6 + 7201045
commit 3517ac2
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/raster/src/main/scala/geotrellis/raster/GridExtent.scala b/raster/src/main/scala/geotrellis/raster/GridExtent.scala
@@ -41,8 +41,8 @@ class GridExtent(val extent: Extent, val cellwidth: Double, val cellheight: Doub
     *       types.
     */
   def toRasterExtent(): RasterExtent = {
-    val targetCols = math.round(extent.width / cellwidth).toLong
-    val targetRows = math.round(extent.height / cellheight).toLong
+    val targetCols = math.max(1L, math.round(extent.width / cellwidth).toLong)
+    val targetRows = math.max(1L, math.round(extent.height / cellheight).toLong)
     if(targetCols > Int.MaxValue) {
       throw new GeoAttrsError(s"Cannot convert GridExtent into a RasterExtent: number of columns exceeds maximum integer value ($targetCols > ${Int.MaxValue})")
     }