Adding error handling for function argument errors.

LogarithmPlotter/i18n/lp_de.ts

@@ -1046,6 +1046,14 @@ Evaluated expression: %3</source>
 
 Ausdruck analysiert: %3</translation>
     </message>
+    <message>
+        <location filename="../qml/eu/ad5001/LogarithmPlotter/LogGraphCanvas.qml" line="179"/>
+        <source>Error while attempting to draw %1 %2:
+%3
+
+Undoing last change.</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>expression</name>
@@ -1066,6 +1074,11 @@ Evaluated expression: %3</source>
 
 Ausdruck analysiert: %3</translation>
     </message>
+    <message>
+        <location filename="../qml/eu/ad5001/LogarithmPlotter/LogGraphCanvas.qml" line="176"/>
+        <source>LogarithmPlotter - Drawing error</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>function</name>

LogarithmPlotter/i18n/lp_en.ts

@@ -1046,6 +1046,14 @@ Evaluated expression: %3</source>
 
 Evaluated expression: %3</translation>
     </message>
+    <message>
+        <location filename="../qml/eu/ad5001/LogarithmPlotter/LogGraphCanvas.qml" line="179"/>
+        <source>Error while attempting to draw %1 %2:
+%3
+
+Undoing last change.</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>expression</name>
@@ -1066,6 +1074,11 @@ Evaluated expression: %3</source>
 
 Evaluated expression: %3</translation>
     </message>
+    <message>
+        <location filename="../qml/eu/ad5001/LogarithmPlotter/LogGraphCanvas.qml" line="176"/>
+        <source>LogarithmPlotter - Drawing error</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>function</name>

LogarithmPlotter/i18n/lp_es.ts

@@ -991,6 +991,14 @@ These settings can be changed at any time from the &quot;Settings&quot; menu.</s
 Evaluated expression: %3</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <location filename="../qml/eu/ad5001/LogarithmPlotter/LogGraphCanvas.qml" line="179"/>
+        <source>Error while attempting to draw %1 %2:
+%3
+
+Undoing last change.</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>expression</name>
@@ -1008,6 +1016,11 @@ Evaluated expression: %3</source>
 Evaluated expression: %3</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <location filename="../qml/eu/ad5001/LogarithmPlotter/LogGraphCanvas.qml" line="176"/>
+        <source>LogarithmPlotter - Drawing error</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>function</name>

LogarithmPlotter/i18n/lp_fr.ts

@@ -1055,6 +1055,14 @@ Evaluated expression: %3</source>
 
 Formule analysée : %3</translation>
     </message>
+    <message>
+        <location filename="../qml/eu/ad5001/LogarithmPlotter/LogGraphCanvas.qml" line="179"/>
+        <source>Error while attempting to draw %1 %2:
+%3
+
+Undoing last change.</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>expression</name>
@@ -1075,6 +1083,11 @@ Evaluated expression: %3</source>
 
 Formule analysée : %3</translation>
     </message>
+    <message>
+        <location filename="../qml/eu/ad5001/LogarithmPlotter/LogGraphCanvas.qml" line="176"/>
+        <source>LogarithmPlotter - Drawing error</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>function</name>

LogarithmPlotter/i18n/lp_hu.ts

@@ -1046,6 +1046,14 @@ Evaluated expression: %3</source>
 
 Kiértékelt kifejezés: %3</translation>
     </message>
+    <message>
+        <location filename="../qml/eu/ad5001/LogarithmPlotter/LogGraphCanvas.qml" line="179"/>
+        <source>Error while attempting to draw %1 %2:
+%3
+
+Undoing last change.</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>expression</name>
@@ -1066,6 +1074,11 @@ Evaluated expression: %3</source>
 
 Kiértékelt kifejezés: %3</translation>
     </message>
+    <message>
+        <location filename="../qml/eu/ad5001/LogarithmPlotter/LogGraphCanvas.qml" line="176"/>
+        <source>LogarithmPlotter - Drawing error</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>function</name>

LogarithmPlotter/i18n/lp_nb_NO.ts

@@ -1043,6 +1043,14 @@ Disse innstillingene kan endres når som helst fra «Innstillinger»-menyen.</tr
 Evaluated expression: %3</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <location filename="../qml/eu/ad5001/LogarithmPlotter/LogGraphCanvas.qml" line="179"/>
+        <source>Error while attempting to draw %1 %2:
+%3
+
+Undoing last change.</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>expression</name>
@@ -1060,6 +1068,11 @@ Evaluated expression: %3</source>
 Evaluated expression: %3</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <location filename="../qml/eu/ad5001/LogarithmPlotter/LogGraphCanvas.qml" line="176"/>
+        <source>LogarithmPlotter - Drawing error</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>function</name>

LogarithmPlotter/i18n/lp_template.ts

@@ -991,6 +991,14 @@ These settings can be changed at any time from the &quot;Settings&quot; menu.</s
 Evaluated expression: %3</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <location filename="../qml/eu/ad5001/LogarithmPlotter/LogGraphCanvas.qml" line="179"/>
+        <source>Error while attempting to draw %1 %2:
+%3
+
+Undoing last change.</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>expression</name>
@@ -1008,6 +1016,11 @@ Evaluated expression: %3</source>
 Evaluated expression: %3</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <location filename="../qml/eu/ad5001/LogarithmPlotter/LogGraphCanvas.qml" line="176"/>
+        <source>LogarithmPlotter - Drawing error</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>function</name>