3 files changed, 24 insertions, 8 deletions
diff --git a/src/ee/part/common_fact_types.py b/src/ee/part/common_fact_types.py
index 10ba1eb..7474437 100644
--- a/src/ee/part/common_fact_types.py
+++ b/src/ee/part/common_fact_types.py
@@ -5,5 +5,6 @@ footprint = FactType(fact_keys.footprint, "Footprint")
 
 resistance = EeValueFactType(fact_keys.resistance, "Resistance", ee.resistance_type)
 capacitance = EeValueFactType(fact_keys.capacitance, "Capacitance", ee.capacitance_type)
+inductance = EeValueFactType(fact_keys.inductance, "Inductance", ee.inductance_type)
 
 ee_component_type = EeValueFactType(fact_keys.ee_component_type, "EE component type", ee.capacitance_type)
diff --git a/src/ee/part/fact_keys.py b/src/ee/part/fact_keys.py
index 9617b9c..668a197 100644
--- a/src/ee/part/fact_keys.py
+++ b/src/ee/part/fact_keys.py
@@ -1,5 +1,6 @@
 ee_component_type = "http://purl.org/ee/fact-type/ee-component-type"
 capacitance = "http://purl.org/ee/fact-type/capacitance"
+inductance = "http://purl.org/ee/fact-type/inductance"
 max_voltage = "http://purl.org/ee/fact-type/voltage"
 # https://en.wikipedia.org/wiki/Ceramic_capacitor#Class_2_ceramic_capacitors
 rs_198_class_2 = "http://purl.org/ee/fact-type/rs-198 class 2"
diff --git a/src/ee/part/requirement.py b/src/ee/part/requirement.py
index a9381df..297727b 100644
--- a/src/ee/part/requirement.py
+++ b/src/ee/part/requirement.py
@@ -1,6 +1,20 @@
 from typing import List
 
-from ee.part import Part, fact_keys, FactType, common_fact_types
+from ee import EeVal
+from ee.part import Part, FactType, common_fact_types, EeValueFactType
+
+
+def to_str(part, fact_type, value, op):
+    v = None
+    if isinstance(fact_type, EeValueFactType):
+        eeft: EeValueFactType=fact_type
+        ev = EeVal.try_parse(value, eeft.ee_type.symbol)
+        v = str(ev)
+
+    if not v:
+        v = value
+
+    return "{}.{} {} {}".format(part.printable_reference, fact_type.label or fact_type.uri, op, v)
 
 
 class Requirement(object):
@@ -15,7 +29,7 @@ class EqualRequirement(Requirement):
         self.value = value
 
     def __str__(self):
-        return "{}.{} == {}".format(self.part.printable_reference, self.fact_type, self.value)
+        return to_str(self.part, self.fact_type, self.value, "==")
 
 
 class MinRequirement(Requirement):
@@ -25,7 +39,7 @@ class MinRequirement(Requirement):
         self.value = value
 
     def __str__(self):
-        return "{}.{} == {}".format(self.part.printable_reference, self.fact_type, self.value)
+        return to_str(self.part, self.fact_type, self.value, ">")
 
 
 class MaxRequirement(Requirement):
@@ -35,7 +49,7 @@ class MaxRequirement(Requirement):
         self.value = value
 
     def __str__(self):
-        return "{}.{} == {}".format(self.part.printable_reference, self.fact_type, self.value)
+        return to_str(self.part, self.fact_type, self.value, "<")
 
 
 class PartAnalysis(object):
@@ -47,12 +61,12 @@ class PartAnalysis(object):
 def analyze_requirements(part: Part) -> PartAnalysis:
     rs = []
 
-    resistance = part.find_fact(common_fact_types.resistance.uri)
+    resistance = part.facts.get_value(common_fact_types.resistance)
     if resistance:
-        rs.append(EqualRequirement(part, common_fact_types.resistance, resistance.valueProp))
+        rs.append(EqualRequirement(part, common_fact_types.resistance, resistance))
 
-    capacitance = part.find_fact(common_fact_types.capacitance.uri)
+    capacitance = part.facts.get_value(common_fact_types.capacitance)
     if capacitance:
-        rs.append(EqualRequirement(part, common_fact_types.capacitance, capacitance.valueProp))
+        rs.append(EqualRequirement(part, common_fact_types.capacitance, capacitance))
 
     return PartAnalysis(part, rs)