fix usage of bY -> numX, make raster example use unequal sizes

timotheecour · Jun 28, 2020 · 9bbc3b8 · 9bbc3b8
1 parent a6f7d9d
commit 9bbc3b8
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Showing 2 changed files with 3 additions and 3 deletions.
diff --git a/src/ginger/backendCairo.nim b/src/ginger/backendCairo.nim
@@ -276,7 +276,7 @@ proc drawRaster*(img: var BImage, left, bottom, width, height: float,
       for x in 0 ..< wImg:
         var tX = (x.float / blockSizeX).floor.int
         var tY = (y.float / blockSizeY).floor.int
-        data[y * wImg + x] = toDraw[tY * bY + tX]
+        data[y * wImg + x] = toDraw[tY * numX + tX]
     pngSurface.markDirty()
     # apply the new surface to the image surface
     ctx.set_source(pngSurface, left, bottom)

diff --git a/tests/tRaster.nim b/tests/tRaster.nim
@@ -4,7 +4,7 @@ var
   ys = newSeq[float]()
   zs = newSeq[float]()
 for x in 0 ..< 28:
-  for y in 0 ..< 28:
+  for y in 0 ..< 14:
     xs.add x.float
     ys.add y.float
     zs.add rand(1.0)
@@ -41,7 +41,7 @@ view1.background()
 let raster = view1.initRaster(c(0.0, 0.0),
                               width = quant(1.0, ukRelative),
                               height = quant(1.0, ukRelative),
-                              numX = 28, numY = 28,
+                              numX = 28, numY = 14,
                               drawCb = drawCb)
 
 let grdlines = view1.initGridLines(some(xticks), some(yticks))