From 7a0c16a0e6cb9af436aa1c4a810e6d974d16a9f3 Mon Sep 17 00:00:00 2001
From: Emmanuel Christophe <emmanuel.christophe@orfeo-toolbox.org>
Date: Wed, 20 May 2009 18:22:16 +0800
Subject: [PATCH] ENH: add overlay option (change background behaviour)
---
Code/Common/otbVectorDataToImageFilter.h | 12 ++++++++++++
Code/Common/otbVectorDataToImageFilter.txx | 15 +++++++++++----
2 files changed, 23 insertions(+), 4 deletions(-)
diff --git a/Code/Common/otbVectorDataToImageFilter.h b/Code/Common/otbVectorDataToImageFilter.h
index 80bdeda3cb..afc5d0025d 100644
--- a/Code/Common/otbVectorDataToImageFilter.h
+++ b/Code/Common/otbVectorDataToImageFilter.h
@@ -129,6 +129,13 @@ template <class TVectorData, class TImage>
m_StyleList.clear();
}
+ /** Specify if the output image is to be uses as an overlar
+ * (with transparent background) or not (with blue background).
+ */
+ itkSetMacro(UseAsOverlay, bool);
+ itkGetMacro(UseAsOverlay, bool);
+ itkBooleanMacro(UseAsOverlay)
+
protected:
/** Constructor */
VectorDataToImageFilter();
@@ -169,9 +176,14 @@ template <class TVectorData, class TImage>
//style list
std::vector<std::string> m_StyleList;
+ //Overlay option: change the backgroup (blue or transparent)
+ bool m_UseAsOverlay;
+
//Projection in the proj.4 format (for mapnik)
std::string m_VectorDataProjectionProj4;
+
+
}; // end class
} // end namespace otb
diff --git a/Code/Common/otbVectorDataToImageFilter.txx b/Code/Common/otbVectorDataToImageFilter.txx
index 25eb26a640..eb2ea34d95 100644
--- a/Code/Common/otbVectorDataToImageFilter.txx
+++ b/Code/Common/otbVectorDataToImageFilter.txx
@@ -47,7 +47,8 @@ namespace otb
template <class TVectorData, class TImage>
VectorDataToImageFilter<TVectorData, TImage>
::VectorDataToImageFilter() :
- m_StyleList()
+ m_StyleList(),
+ m_UseAsOverlay(true)
{
this->SetNumberOfRequiredInputs( 1 );
m_Spacing.Fill(1.0);
@@ -214,9 +215,15 @@ namespace otb
mapnik::freetype_engine::register_font("/usr/share/fonts/truetype/ttf-dejavu/DejaVuSans.ttf");
- //Set the default backgroup to transparent
- m_Map.set_background(mapnik::color(255,255,255,0));
-
+ if(m_UseAsOverlay)
+ {
+ //Set the default backgroup to transparent
+ m_Map.set_background(mapnik::color(255,255,255,0));
+ }
+ else
+ {
+ m_Map.set_background(mapnik::color("#b5d0d0"));
+ }
//Load the OSM styles using helper class
otb::VectorDataStyle::Pointer styleLoader = otb::VectorDataStyle::New();
styleLoader->SetScaleFactor(m_ScaleFactor);
--
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