restrict adding points that not belong to `heat map area`
prevent RMagick double require 

prevent

```
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:44: warning: already initialized constant Magick::PercentGeometry
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:44: warning: previous definition of PercentGeometry was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:45: warning: already initialized constant Magick::AspectGeometry
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:45: warning: previous definition of AspectGeometry was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:46: warning: already initialized constant Magick::LessGeometry
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:46: warning: previous definition of LessGeometry was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:47: warning: already initialized constant Magick::GreaterGeometry
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:47: warning: previous definition of GreaterGeometry was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:48: warning: already initialized constant Magick::AreaGeometry
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:48: warning: previous definition of AreaGeometry was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:49: warning: already initialized constant Magick::MinimumGeometry
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:49: warning: previous definition of MinimumGeometry was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:52: warning: already initialized constant Magick::Geometry::FLAGS
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:52: warning: previous definition of FLAGS was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:53: warning: already initialized constant Magick::Geometry::RFLAGS
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:53: warning: previous definition of RFLAGS was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:92: warning: already initialized constant Magick::Geometry::W
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:92: warning: previous definition of W was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:93: warning: already initialized constant Magick::Geometry::H
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:93: warning: previous definition of H was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:94: warning: already initialized constant Magick::Geometry::X
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:94: warning: previous definition of X was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:95: warning: already initialized constant Magick::Geometry::Y
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:95: warning: previous definition of Y was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:96: warning: already initialized constant Magick::Geometry::RE
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:96: warning: previous definition of RE was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:147: warning: already initialized constant Magick::Draw::ALIGN_TYPE_NAMES
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:147: warning: previous definition of ALIGN_TYPE_NAMES was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:152: warning: already initialized constant Magick::Draw::ANCHOR_TYPE_NAMES
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:152: warning: previous definition of ANCHOR_TYPE_NAMES was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:157: warning: already initialized constant Magick::Draw::DECORATION_TYPE_NAMES
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:157: warning: previous definition of DECORATION_TYPE_NAMES was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:163: warning: already initialized constant Magick::Draw::FONT_WEIGHT_NAMES
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:163: warning: previous definition of FONT_WEIGHT_NAMES was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:170: warning: already initialized constant Magick::Draw::GRAVITY_NAMES
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:170: warning: previous definition of GRAVITY_NAMES was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:181: warning: already initialized constant Magick::Draw::PAINT_METHOD_NAMES
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:181: warning: previous definition of PAINT_METHOD_NAMES was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:188: warning: already initialized constant Magick::Draw::STRETCH_TYPE_NAMES
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:188: warning: previous definition of STRETCH_TYPE_NAMES was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:200: warning: already initialized constant Magick::Draw::STYLE_TYPE_NAMES
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:200: warning: previous definition of STYLE_TYPE_NAMES was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:673: warning: already initialized constant Magick::IPTC::Envelope::Model_Version
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:673: warning: previous definition of Model_Version was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:674: warning: already initialized constant Magick::IPTC::Envelope::Destination
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:674: warning: previous definition of Destination was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:675: warning: already initialized constant Magick::IPTC::Envelope::File_Format
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:675: warning: previous definition of File_Format was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:676: warning: already initialized constant Magick::IPTC::Envelope::File_Format_Version
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:676: warning: previous definition of File_Format_Version was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:677: warning: already initialized constant Magick::IPTC::Envelope::Service_Identifier
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:677: warning: previous definition of Service_Identifier was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:678: warning: already initialized constant Magick::IPTC::Envelope::Envelope_Number
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:678: warning: previous definition of Envelope_Number was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:679: warning: already initialized constant Magick::IPTC::Envelope::Product_ID
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:679: warning: previous definition of Product_ID was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:680: warning: already initialized constant Magick::IPTC::Envelope::Envelope_Priority
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:680: warning: previous definition of Envelope_Priority was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:681: warning: already initialized constant Magick::IPTC::Envelope::Date_Sent
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:681: warning: previous definition of Date_Sent was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:682: warning: already initialized constant Magick::IPTC::Envelope::Time_Sent
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:682: warning: previous definition of Time_Sent was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:683: warning: already initialized constant Magick::IPTC::Envelope::Coded_Character_Set
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:683: warning: previous definition of Coded_Character_Set was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:684: warning: already initialized constant Magick::IPTC::Envelope::UNO
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:684: warning: previous definition of UNO was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:685: warning: already initialized constant Magick::IPTC::Envelope::Unique_Name_of_Object
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:685: warning: previous definition of Unique_Name_of_Object was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:686: warning: already initialized constant Magick::IPTC::Envelope::ARM_Identifier
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:686: warning: previous definition of ARM_Identifier was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:687: warning: already initialized constant Magick::IPTC::Envelope::ARM_Version
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:687: warning: previous definition of ARM_Version was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:691: warning: already initialized constant Magick::IPTC::Application::Record_Version
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:691: warning: previous definition of Record_Version was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:692: warning: already initialized constant Magick::IPTC::Application::Object_Type_Reference
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:692: warning: previous definition of Object_Type_Reference was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:693: warning: already initialized constant Magick::IPTC::Application::Object_Name
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:693: warning: previous definition of Object_Name was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:694: warning: already initialized constant Magick::IPTC::Application::Title
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:694: warning: previous definition of Title was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:695: warning: already initialized constant Magick::IPTC::Application::Edit_Status
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:695: warning: previous definition of Edit_Status was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:696: warning: already initialized constant Magick::IPTC::Application::Editorial_Update
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:696: warning: previous definition of Editorial_Update was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:697: warning: already initialized constant Magick::IPTC::Application::Urgency
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:697: warning: previous definition of Urgency was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:698: warning: already initialized constant Magick::IPTC::Application::Subject_Reference
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:698: warning: previous definition of Subject_Reference was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:699: warning: already initialized constant Magick::IPTC::Application::Category
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:699: warning: previous definition of Category was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:700: warning: already initialized constant Magick::IPTC::Application::Supplemental_Category
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:700: warning: previous definition of Supplemental_Category was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:701: warning: already initialized constant Magick::IPTC::Application::Fixture_Identifier
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:701: warning: previous definition of Fixture_Identifier was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:702: warning: already initialized constant Magick::IPTC::Application::Keywords
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:702: warning: previous definition of Keywords was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:703: warning: already initialized constant Magick::IPTC::Application::Content_Location_Code
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:703: warning: previous definition of Content_Location_Code was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:704: warning: already initialized constant Magick::IPTC::Application::Content_Location_Name
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:704: warning: previous definition of Content_Location_Name was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:705: warning: already initialized constant Magick::IPTC::Application::Release_Date
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:705: warning: previous definition of Release_Date was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:706: warning: already initialized constant Magick::IPTC::Application::Release_Time
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:706: warning: previous definition of Release_Time was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:707: warning: already initialized constant Magick::IPTC::Application::Expiration_Date
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:707: warning: previous definition of Expiration_Date was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:708: warning: already initialized constant Magick::IPTC::Application::Expiration_Time
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:708: warning: previous definition of Expiration_Time was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:709: warning: already initialized constant Magick::IPTC::Application::Special_Instructions
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:709: warning: previous definition of Special_Instructions was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:710: warning: already initialized constant Magick::IPTC::Application::Action_Advised
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:710: warning: previous definition of Action_Advised was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:711: warning: already initialized constant Magick::IPTC::Application::Reference_Service
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:711: warning: previous definition of Reference_Service was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:712: warning: already initialized constant Magick::IPTC::Application::Reference_Date
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:712: warning: previous definition of Reference_Date was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:713: warning: already initialized constant Magick::IPTC::Application::Reference_Number
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:713: warning: previous definition of Reference_Number was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:714: warning: already initialized constant Magick::IPTC::Application::Date_Created
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:714: warning: previous definition of Date_Created was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:715: warning: already initialized constant Magick::IPTC::Application::Time_Created
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:715: warning: previous definition of Time_Created was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:716: warning: already initialized constant Magick::IPTC::Application::Digital_Creation_Date
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:716: warning: previous definition of Digital_Creation_Date was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:717: warning: already initialized constant Magick::IPTC::Application::Digital_Creation_Time
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:717: warning: previous definition of Digital_Creation_Time was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:718: warning: already initialized constant Magick::IPTC::Application::Originating_Program
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:718: warning: previous definition of Originating_Program was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:719: warning: already initialized constant Magick::IPTC::Application::Program_Version
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:719: warning: previous definition of Program_Version was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:720: warning: already initialized constant Magick::IPTC::Application::Object_Cycle
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:720: warning: previous definition of Object_Cycle was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:721: warning: already initialized constant Magick::IPTC::Application::By_Line
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:721: warning: previous definition of By_Line was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:722: warning: already initialized constant Magick::IPTC::Application::Author
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:722: warning: previous definition of Author was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:723: warning: already initialized constant Magick::IPTC::Application::By_Line_Title
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:723: warning: previous definition of By_Line_Title was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:724: warning: already initialized constant Magick::IPTC::Application::Author_Position
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:724: warning: previous definition of Author_Position was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:725: warning: already initialized constant Magick::IPTC::Application::City
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:725: warning: previous definition of City was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:726: warning: already initialized constant Magick::IPTC::Application::Sub_Location
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:726: warning: previous definition of Sub_Location was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:727: warning: already initialized constant Magick::IPTC::Application::Province
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:727: warning: previous definition of Province was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:728: warning: already initialized constant Magick::IPTC::Application::State
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:728: warning: previous definition of State was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:729: warning: already initialized constant Magick::IPTC::Application::Country_Primary_Location_Code
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:729: warning: previous definition of Country_Primary_Location_Code was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:730: warning: already initialized constant Magick::IPTC::Application::Country_Primary_Location_Name
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:730: warning: previous definition of Country_Primary_Location_Name was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:731: warning: already initialized constant Magick::IPTC::Application::Original_Transmission_Reference
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:731: warning: previous definition of Original_Transmission_Reference was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:732: warning: already initialized constant Magick::IPTC::Application::Headline
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:732: warning: previous definition of Headline was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:733: warning: already initialized constant Magick::IPTC::Application::Credit
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:733: warning: previous definition of Credit was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:734: warning: already initialized constant Magick::IPTC::Application::Source
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:734: warning: previous definition of Source was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:735: warning: already initialized constant Magick::IPTC::Application::Copyright_Notice
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:735: warning: previous definition of Copyright_Notice was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:736: warning: already initialized constant Magick::IPTC::Application::Contact
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:736: warning: previous definition of Contact was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:737: warning: already initialized constant Magick::IPTC::Application::Abstract
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:737: warning: previous definition of Abstract was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:738: warning: already initialized constant Magick::IPTC::Application::Caption
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:738: warning: previous definition of Caption was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:739: warning: already initialized constant Magick::IPTC::Application::Editor
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:739: warning: previous definition of Editor was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:740: warning: already initialized constant Magick::IPTC::Application::Caption_Writer
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:740: warning: previous definition of Caption_Writer was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:741: warning: already initialized constant Magick::IPTC::Application::Rasterized_Caption
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:741: warning: previous definition of Rasterized_Caption was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:742: warning: already initialized constant Magick::IPTC::Application::Image_Type
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:742: warning: previous definition of Image_Type was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:743: warning: already initialized constant Magick::IPTC::Application::Image_Orientation
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:743: warning: previous definition of Image_Orientation was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:744: warning: already initialized constant Magick::IPTC::Application::Language_Identifier
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:744: warning: previous definition of Language_Identifier was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:745: warning: already initialized constant Magick::IPTC::Application::Audio_Type
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:745: warning: previous definition of Audio_Type was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:746: warning: already initialized constant Magick::IPTC::Application::Audio_Sampling_Rate
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:746: warning: previous definition of Audio_Sampling_Rate was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:747: warning: already initialized constant Magick::IPTC::Application::Audio_Sampling_Resolution
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:747: warning: previous definition of Audio_Sampling_Resolution was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:748: warning: already initialized constant Magick::IPTC::Application::Audio_Duration
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:748: warning: previous definition of Audio_Duration was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:749: warning: already initialized constant Magick::IPTC::Application::Audio_Outcue
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:749: warning: previous definition of Audio_Outcue was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:750: warning: already initialized constant Magick::IPTC::Application::ObjectData_Preview_File_Format
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:750: warning: previous definition of ObjectData_Preview_File_Format was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:751: warning: already initialized constant Magick::IPTC::Application::ObjectData_Preview_File_Format_Version
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:751: warning: previous definition of ObjectData_Preview_File_Format_Version was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:752: warning: already initialized constant Magick::IPTC::Application::ObjectData_Preview_Data
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:752: warning: previous definition of ObjectData_Preview_Data was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:756: warning: already initialized constant Magick::IPTC::Pre_ObjectData_Descriptor::Size_Mode
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:756: warning: previous definition of Size_Mode was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:757: warning: already initialized constant Magick::IPTC::Pre_ObjectData_Descriptor::Max_Subfile_Size
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:757: warning: previous definition of Max_Subfile_Size was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:758: warning: already initialized constant Magick::IPTC::Pre_ObjectData_Descriptor::ObjectData_Size_Announced
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:758: warning: previous definition of ObjectData_Size_Announced was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:759: warning: already initialized constant Magick::IPTC::Pre_ObjectData_Descriptor::Maximum_ObjectData_Size
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:759: warning: previous definition of Maximum_ObjectData_Size was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:763: warning: already initialized constant Magick::IPTC::ObjectData::Subfile
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:763: warning: previous definition of Subfile was here
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/rmagick.rb:767: warning: already initialized constant Magick::IPTC::Post_ObjectData_Descriptor::Confirmed_ObjectData_Size
/.rvm/gems/ruby-2.0.0-p247/gems/rmagick-2.13.2/lib/RMagick.rb:767: warning: previous definition of Confirmed_ObjectData_Size was here
```
Update map.rb

fix typo
Merge pull request #1 from kapkaev/master

restrict adding points that not belong to `heat map area`