<?xml version="1.0" encoding="UTF-8"?>


<neuroml xmlns="http://morphml.org/neuroml/schema"  
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:net="http://morphml.org/networkml/schema"
    xmlns:mml="http://morphml.org/morphml/schema"
    xmlns:meta="http://morphml.org/metadata/schema"
    xmlns:bio="http://morphml.org/biophysics/schema"  
    xmlns:cml="http://morphml.org/channelml/schema"  
    xsi:schemaLocation="http://morphml.org/neuroml/schema http://www.neuroml.org/NeuroMLValidator/NeuroMLFiles/Schemata/v1.8.1/Level3/NeuroML_Level3_v1.8.1.xsd"
    length_units="micrometer">
                        

    <meta:notes>A network of cells connected in NeuroML Level 3. Extra tags are included to give an
      idea how the standard can be extended. Note most NeuroML compliant applications will ignore this extra
      data, but will still be able to extract the essential physiological information.
      
        ***************
        This file is still in development and more suggestions for possible extension will be added later
        ***************
    </meta:notes>

    
    <cells>
        <cell name="CellA">
            
            <meta:notes>Test cell for showing how channels can be placed on a cell</meta:notes>
            
            <meta:properties>
                <meta:property tag="type" value="artificial cell"/>   <!-- A property of the cell-->
            </meta:properties>
        
            <segments xmlns="http://morphml.org/morphml/schema">
                
                <segment id ="0" name="Soma"  cable="0">
                    <proximal x="0" y="0" z="0" diameter="10"/>
                    <distal x="10" y="0" z="0" diameter="10"/>
                </segment>
                
                <segment id ="1" name="Dendrite" parent="0" cable="1">
                    <proximal x="10" y="0" z="0" diameter="3"/>
                    <distal x="20" y="0" z="0" diameter="3"/>
                </segment>
                
            </segments>

            <cables xmlns="http://morphml.org/morphml/schema">
                <cable id="0" name="SomaCable">
                    <meta:properties>
                        <meta:property tag="display:colour" value="red"/>          <!-- Colour for displaying the cable -->
                    </meta:properties>
                    <meta:group>soma_group</meta:group>
                </cable>
                <cable id="1" name="DendriteCable">
                    <meta:properties>
                        <meta:property tag="display:colour" value="green"/>
                    </meta:properties>
                    <meta:group>dendrite_group</meta:group>
                </cable>
            </cables>
                    
            <biophysics  units="Physiological Units" >  
                <bio:mechanism name="pas"  type="Channel Mechanism">
                    <bio:parameter name="gmax" value="0.0330033">
                        <bio:group>all</bio:group>
                    </bio:parameter>
                </bio:mechanism>
                <bio:spec_capacitance>
                    <bio:parameter value="1.0">
                        <bio:group>all</bio:group>
                    </bio:parameter>
                </bio:spec_capacitance>
                <bio:spec_axial_resistance>
                    <bio:parameter value="0.1">
                        <bio:group>all</bio:group>
                    </bio:parameter>
                </bio:spec_axial_resistance>
              
            </biophysics>
        </cell>
    </cells>
                       <!-- The biophysical mechanisms present in the network-->
    
    <channels units="Physiological Units">

        <channel_type name="pas" density="yes"   xmlns="http://morphml.org/channelml/schema">
            <meta:notes>Simple example of a leak/passive conductance.</meta:notes>
        
            <current_voltage_relation cond_law="ohmic" ion="non_specific" default_erev="-54.3" default_gmax="0.3"/>
        </channel_type>
        
        <synapse_type name="DoubExpSynA"  xmlns="http://morphml.org/channelml/schema">
            
            <meta:properties>
                <meta:property tag="Impl requirement" value="dt less than 0.02 ms"/> <!-- Suggestions for implementation of model -->
            </meta:properties>
            
            <doub_exp_syn max_conductance="1.0E-5" rise_time=".1" decay_time="2" reversal_potential="0"/>
        </synapse_type>

    </channels>
    
    
                       <!-- The cell populations present in the network-->

    <populations  xmlns="http://morphml.org/networkml/schema">
        <population name="CellGroupA" cell_type="CellA">
            <instances size="3">
                <instance id="0">
                    <meta:properties>
                        <meta:property tag="display:transparency" value="0.9"/>    <!-- Transparency of the the cell -->
                    </meta:properties>
                    <location x="0" y="0" z="0"/>
                </instance>
                <instance id="1">
                    <meta:properties>
                        <meta:property tag="colour" value="red"/>
                    </meta:properties>
                    <location x="0" y="10" z="0"/>
                </instance>
                <instance id="2">
                    <meta:properties>
                        <meta:property tag="colour" value="green"/>
                    </meta:properties>
                    <location x="0" y="20" z="0"/>
                </instance>
            </instances>
        </population>
        <population name="CellGroupB" cell_type="CellA">
            <instances size="2">
                <instance id="0"><location x="0" y="100" z="0"/></instance>
                <instance id="1"><location x="20" y="100" z="0"/></instance>
            </instances>
        </population>
    </populations>
    
    
                       <!-- The projections between populations in the network-->
    
    <projections units="Physiological Units" xmlns="http://morphml.org/networkml/schema">
        <projection name="NetworkConnection" source="CellGroupA" target="CellGroupB">
            
            <synapse_props synapse_type="DoubExpSynA" internal_delay="5" weight="1" threshold="-20"/>
            
            <connections>
                <connection id="0" pre_cell_id="0" pre_segment_id = "0" pre_fraction_along="0.5" post_cell_id="1" post_segment_id = "1">
                    
                    <meta:properties>
                        <meta:property tag="display:weight" value="bold"/>   <!-- A flag to highlight this connection -->
                    </meta:properties>
                    
                </connection>
                <connection id="1" pre_cell_id="2" pre_segment_id = "0" post_cell_id="1" post_segment_id = "0"/>
                <connection id="2" pre_cell_id="3" pre_segment_id = "0" post_cell_id="1" post_segment_id = "1"/>
            </connections>
        </projection>
    </projections>
    
                  


</neuroml>