Changeset 2751 for trunk/stac/src/stacTransform.c

Timestamp:

Dec 17, 2004, 11:39:39 AM (22 years ago)

Author:

Paul Price

Message:

Working well, and timing OK, but can yet be optimised.

File:

• trunk/stac/src/stacTransform.c (modified) (3 diffs)

trunk/stac/src/stacTransform.c

@@ -176 +176 @@
         psImage *outError = psImageAlloc(nx, ny, PS_TYPE_F32);
         psTrace("stac.transform", 5, "Allocating space for transformed image, %dx%d\n", nx, ny);
+
+#if 0
+        // No need for initialisation, since we iterate over the entire output image.
         for (int y = 0; y < ny; y++) {
             for (int x = 0; x < nx; x++) {
@@ -182 +185 @@
             }
         }
+#endif
 
         // Mask
@@ -201 +205 @@
             for (int x = 0; x < nx; x++) {
                 // Transform!
-                // Could no doubt make this quicker by calculating derivatives and incrementing by those.
                 sky->x = (double)x + 0.5;
                 sky->y = (double)y + 0.5;