From c353dd0befea615adf233afa33c47dd9be6b94a0 Mon Sep 17 00:00:00 2001
From: Anton Khirnov <anton@khirnov.net>
Date: Thu, 23 May 2019 10:42:08 +0200
Subject: transfer: allow optional extrapolation

---
 transfer.h | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'transfer.h')

diff --git a/transfer.h b/transfer.h
index 0a10f3a..2ed4aea 100644
--- a/transfer.h
+++ b/transfer.h
@@ -85,6 +85,12 @@ typedef struct GridTransferContext {
      * Destination grid geometry, must be filled by the caller.
      */
     RegularGrid2D dst;
+
+    /**
+     * Allow extrapolating this many points beyond the source rectangle.
+     * Defaults to 0: forbid extrapolation.
+     */
+    int extrapolate_distance;
 } GridTransferContext;
 
 /**
-- 
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