Add BP Seismic color map

Author: dcwhite

src/Core/Datatypes/ColorMap.cc

@@ -85,6 +85,12 @@ class Darkhue : public ColorMapStrategy
 public:
   virtual Core::Datatypes::ColorRGB getColorMapVal(double v) const override;
 };
+
+class BPSeismic : public ColorMapStrategy
+{
+public:
+  virtual Core::Datatypes::ColorRGB getColorMapVal(double v) const override;
+};
 }
 
 ColorMapHandle StandardColorMapFactory::create(const std::string& name, const size_t &res,
@@ -110,6 +116,9 @@ ColorMapHandle StandardColorMapFactory::create(const std::string& name, const si
     else if (name == "Darkhue") {
       color.reset(new detail::Darkhue);
     }
+    else if (name == "BP Seismic") {
+      color.reset(new detail::BPSeismic);
+    }
     else
       THROW_INVALID_ARGUMENT("Color map name not implemented/recognized.");
 
@@ -291,6 +300,18 @@ ColorRGB detail::OrangeBlackLime::getColorMapVal(double f) const
   return col;
 }
 
+// This color scheme sets a transition of color that goes
+// Blue -> White -> Red
+ColorRGB detail::BPSeismic::getColorMapVal(double f) const
+{
+  ColorRGB col;
+  if (f < 0.5)
+    col = ColorRGB(f*2, f*2, 1);
+  else
+    col = ColorRGB(1, (1-f)*2, (1-f)*2);
+  return col;
+}
+
 ColorRGB detail::Darkhue::getColorMapVal(double f) const
 {
   ColorRGB col;

src/Interface/Modules/Visualization/CreateStandardColorMap.ui

@@ -90,6 +90,11 @@
           <string>Orange,Black,Lime</string>
          </property>
         </item>
+        <item>
+         <property name="text">
+          <string>BP Seismic</string>
+         </property>
+        </item>
        </widget>
       </item>
       <item>