From 6e959ea0583810a5f93f8f0d03ee7d5200562c2e Mon Sep 17 00:00:00 2001
From: Tomasz Golinski <tomaszg@math.uwb.edu.pl>
Date: Tue, 27 Jul 2021 23:47:06 +0200
Subject: [PATCH] Fix for heatmap powiaty making output colored

Background image was grayscale and IM needed to be told to promote it to color.
---
 heat.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/heat.cpp b/heat.cpp
index caf7817..e75f1f6 100644
--- a/heat.cpp
+++ b/heat.cpp
@@ -44,6 +44,7 @@ void Heat::generate(const std::string& filename, const pCaches& points, int stam
 	Magick::Image contour(MAPS_DIR / mp->map_file);
 	Magick::Image heatmap(mp->size_x, mp->size_y, "RGBA", Magick::CharPixel, &image[0]);
 
+	contour.type(Magick::TrueColorType);
 	contour.composite(heatmap, 0, 0, Magick::OverCompositeOp);
 	contour.write(filename);
 	// heatmap.write("geostat_heat.png");