Snap GPT Resample, Subset, MathBand

Resample a 10m, Subset su finestra geografica, calcolo NDVI

 

<graph id="Graph">
  <version>1.0</version>
  <node id="Read">
    <operator>Read</operator>
    <sources/>
    <parameters class="com.bc.ceres.binding.dom.XppDomElement">
      <useAdvancedOptions>false</useAdvancedOptions>
      <file>${ingresso}</file>
      <copyMetadata>true</copyMetadata>
      <bandNames/>
      <pixelRegion>0,0,10980,10980</pixelRegion>
      <maskNames/>
    </parameters>
  </node>
  <node id="Resample">
    <operator>Resample</operator>
    <sources>
      <sourceProduct refid="Read"/>
    </sources>
    <parameters class="com.bc.ceres.binding.dom.XppDomElement">
      <referenceBand/>
      <targetWidth>10980</targetWidth>
      <targetHeight>10980</targetHeight>
      <targetResolution/>
      <upsampling>Nearest</upsampling>
      <downsampling>First</downsampling>
      <flagDownsampling>First</flagDownsampling>
      <resamplingPreset/>
      <bandResamplings/>
      <resampleOnPyramidLevels>true</resampleOnPyramidLevels>
    </parameters>
  </node>
  <node id="Subset">
    <operator>Subset</operator>
    <sources>
      <sourceProduct refid="Resample"/>
    </sources>
    <parameters class="com.bc.ceres.binding.dom.XppDomElement">
      <sourceBands>B4,B8</sourceBands>
      <tiePointGrids/>
      <region>0,0,0,0</region>
      <referenceBand/>
      <geoRegion>POLYGON ((11.141773223876953 43.80547332763672, 11.368977546691895 43.80547332763672, 11.368977546691895 43.664669036865234, 11.141773223876953 43.664669036865234, 11.141773223876953 43.80547332763672, 11.141773223876953 43.80547332763672))</geoRegion>
      <subSamplingX>1</subSamplingX>
      <subSamplingY>1</subSamplingY>
      <fullSwath>false</fullSwath>
      <copyMetadata>true</copyMetadata>
    </parameters>
  </node>
  <node id="BandMaths">
    <operator>BandMaths</operator>
    <sources>
      <sourceProduct refid="Subset"/>
    </sources>
    <parameters class="com.bc.ceres.binding.dom.XppDomElement">
      <targetBands>
        <targetBand>
          <name>newBand</name>
          <type>float32</type>
          <expression>(B8 - B4) / (B8 + B4)</expression>
          <description/>
          <unit/>
          <noDataValue>0.0</noDataValue>
        </targetBand>
      </targetBands>
      <variables/>
    </parameters>
  </node>
  <node id="Write">
    <operator>Write</operator>
    <sources>
      <sourceProduct refid="BandMaths"/>
    </sources>
    <parameters class="com.bc.ceres.binding.dom.XppDomElement">
      <file>/home/luca/sentinel/Subset_resampled_BandMath.tif</file>
      <formatName>GeoTIFF</formatName>
    </parameters>
  </node>
  <applicationData id="Presentation">
    <Description/>
    <node id="Read">
            <displayPosition x="37.0" y="134.0"/>
    </node>
    <node id="Resample">
      <displayPosition x="148.0" y="141.0"/>
    </node>
    <node id="Subset">
      <displayPosition x="264.0" y="142.0"/>
    </node>
    <node id="BandMaths">
      <displayPosition x="359.0" y="144.0"/>
    </node>
    <node id="Write">
            <displayPosition x="455.0" y="135.0"/>
    </node>
  </applicationData>
</graph>