diff --git a/asterix/asterix-app/data/spatial/spatialData.json b/asterix/asterix-app/data/spatial/spatialData.json
index 6f094ee..9c78064 100644
--- a/asterix/asterix-app/data/spatial/spatialData.json
+++ b/asterix/asterix-app/data/spatial/spatialData.json
@@ -1,19 +1,21 @@
-{"id": 1, "point": point("4.1,7.0"), "kwds": "sign ahead", "line1": line("4.0,7.0 9.0,7.0"), "line2": line("5.0,8.0 5.0,1.0"), "poly1": polygon("1.0,1.0 1.0,4.0 3.0,4.0 3.0,1.0"), "poly2": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.2,7.0")}
-{"id": 2, "point": point("40.2152,-75.0449"), "kwds": "factory hosedan", "line1": line("-4.0,2.0 2.0,2.0"), "line2": line("4.0,7.0 2.0,17.0"), "poly1": polygon("1.0,1.0 1.0,4.0 3.0,4.0 3.0,1.0"), "poly2": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0")}
-{"id": 3, "point": point("43.5083,-79.3007"), "kwds": "enterprisecamp torcamp", "line1": line("3.0,0.0 0.0,4.0"), "line2": line("4.0,7.0 2.0,17.0"), "poly1": polygon("1.0,1.0 1.0,4.0 3.0,4.0 3.0,1.0"), "poly2": polygon("1.0,1.0 1.0,4.0 3.0,4.0 3.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0")}
-{"id": 4, "point": point("43.5083,-79.3007"), "kwds": "enterprisecamp torcamp", "line1": line("4.0,7.0 2.0,17.0"), "line2": line("4.0,7.0 2.0,17.0"), "poly1": polygon("1.0,1.0 1.0,4.0 3.0,4.0 3.0,1.0 2.0,1.0 1.0,0.0"), "poly2": polygon("2.0,1.0 2.0,2.0 3.0,2.0 3.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0")}
-{"id": 5, "point": point("43.5083,-79.3007"), "kwds": "enterprisecamp torcamp", "line1": line("4.0,7.0 2.0,17.0"), "line2": line("4.0,7.0 2.0,17.0"), "poly1": polygon("100.0,100.0 100.0,400.0 300.0,400.0 300.0,100.0"), "poly2": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0")}
-{"id": 6, "point": point("43.5083,-79.3007"), "kwds": "enterprisecamp torcamp", "line1": line("0.0,5.0 1.0,7.0"), "line2": line("4.0,7.0 2.0,-17.0"), "poly1": polygon("1.0,1.0 1.0,4.0 3.0,4.0 3.0,1.0"), "poly2": polygon("3.1,1.0 2.9,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0")}
-{"id": 7, "point": point("43.5083,-79.3007"), "kwds": "enterprisecamp torcamp", "line1": line("0.0,5.0 4.0,7.1"), "line2": line("4.0,7.0 2.0,-17.0"), "poly1": polygon("-5.0,-2.0 -4.0,-1.0 -3.0,-1.0 -2.0,-2.0 -4.0,-4.0 -5.0,-3.0"), "poly2": polygon("3.0,1.0 3.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("3.0,6.0 5.0,7.0")}
-{"id": 8, "point": point("43.5083,-79.3007"), "kwds": "enterprisecamp torcamp", "line1": line("4.0,7.0 2.0,17.0"), "line2": line("4.0,7.0 2.0,17.0"), "poly1": polygon("-5.0,-2.0 -4.0,-1.0 -3.0,-1.0 -2.0,-2.0 -4.0,-4.0 -5.0,-3.0"), "poly2": polygon("-3.0,-3.0 -1.0,-3.0 -3.0,-5.0"), "rec": rectangle("0.0,0.0 4.0,4.0")}
-{"id": 9, "point": point("5.0,1.0"), "kwds": "sign ahead", "line1": line("5.0,1.0 5.0,4.0"), "line2": line("5.0,8.0 5.0,1.0"), "poly1": polygon("1.0,1.0 1.0,4.0 3.0,4.0 3.0,1.0"), "poly2": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0")}
-{"id": 10, "point": point("2.0,3.0"), "kwds": "sign ahead", "line1": line("1.0,2.0 3.0,4.0"), "line2": line("5.0,8.0 5.0,1.0"), "poly1": polygon("6.01,1.0 6.0,4.0 12.0,4.0 12.0,1.0"), "poly2": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0")}
-{"id": 11, "point": point("4.9,0.0"), "kwds": "sign ahead", "line1": line("1.0,2.0 3.0,4.0"), "line2": line("5.0,8.0 5.0,1.0"), "poly1": polygon("4.9,0.1 4.9,4.0 12.0,4.0 12.0,1.0"), "poly2": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0")}
-{"id": 12, "point": point("6.0,3.0"), "kwds": "sign ahead", "line1": line("1.0,2.0 3.0,4.0"), "line2": line("5.0,8.0 5.0,1.0"), "poly1": polygon("4.0,1.0 4.0,4.0 12.0,4.0 12.0,1.0"), "poly2": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0")}
-{"id": 13, "point": point("5.0,5.0"), "kwds": "sign ahead", "line1": line("1.0,2.0 3.0,4.0"), "line2": line("5.0,8.0 5.0,1.0"), "poly1": polygon("6.0,1.0 6.0,4.0 12.0,4.0 12.0,1.0"), "poly2": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0")}
-{"id": 14, "point": point("5.1,5.1"), "kwds": "sign ahead", "line1": line("1.0,2.0 3.0,4.0"), "line2": line("5.0,8.0 5.0,1.0"), "poly1": polygon("5.0,1.0 5.0,4.0 12.0,4.0 12.0,1.0"), "poly2": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0")}
-{"id": 15, "point": point("-2.0,3.0"), "kwds": "sign ahead", "line1": line("1.0,2.0 3.0,4.0"), "line2": line("5.0,8.0 5.0,1.0"), "poly1": polygon("5.1,1.0 5.1,4.0 12.0,4.0 12.0,1.0"), "poly2": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0")}
-{"id": 16, "point": point("-2.0,3.0"), "kwds": "sign ahead", "line1": line("1.0,2.0 3.0,4.0"), "line2": line("5.0,8.0 5.0,1.0"), "poly1": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "poly2": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0")}
-{"id": 17, "point": point("4.1,7.0"), "kwds": "sign ahead", "line1": line("4.0,7.0 9.0,7.0"), "line2": line("5.0,8.0 5.0,1.0"), "poly1": polygon("0.0,6.0 0.0,0.0 3.0,0.0 4.0,1.0 6.0,1.0 8.0,0.0 12.0,0.0 13.0,2.0 8.0,2.0 8.0,4.0 11.0,4.0 11.0,6.0 6.0,6.0 4.0,3.0 2.0,6.0"), "poly2": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0")}
-{"id": 18, "point": point("-2.0,3.0"), "kwds": "sign ahead", "line1": line("1.0,2.0 3.0,4.0"), "line2": line("5.0,8.0 5.0,1.0"), "poly1": polygon("5.0,1.0 7.0,1.0 7.0,4.0 6.0,2.0 5.0,4.0"), "poly2": polygon("6.0,3.0 7.0,5.0 6.0,7.0 5.0,5.0"), "rec": rectangle("0.0,0.0 4.0,4.0")}
-{"id": 19, "point": point("-2.0,3.0"), "kwds": "sign ahead", "line1": line("1.0,2.0 3.0,4.0"), "line2": line("5.0,8.0 5.0,1.0"), "poly1": polygon("5.0,1.0 7.0,1.0 7.0,4.0 6.0,2.0 5.0,4.0"), "poly2": polygon("6.0,1.0 7.0,5.0 6.0,7.0 5.0,5.0"), "rec": rectangle("0.0,0.0 4.0,4.0")}
\ No newline at end of file
+{"id": 1, "point": point("4.1,7.0"), "kwds": "sign ahead", "line1": line("4.0,7.0 9.0,7.0"), "line2": line("5.0,8.0 5.0,1.0"), "poly1": polygon("1.0,1.0 1.0,4.0 3.0,4.0 3.0,1.0"), "poly2": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.2,7.0"), "circle" : circle("1.0,1.0 10.0")}
+{"id": 2, "point": point("40.2152,-75.0449"), "kwds": "factory hosedan", "line1": line("-4.0,2.0 2.0,2.0"), "line2": line("4.0,7.0 2.0,17.0"), "poly1": polygon("1.0,1.0 1.0,4.0 3.0,4.0 3.0,1.0"), "poly2": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0"), "circle" : circle("2.0,3.0 2.0")}
+{"id": 3, "point": point("43.5083,-79.3007"), "kwds": "enterprisecamp torcamp", "line1": line("3.0,0.0 0.0,4.0"), "line2": line("4.0,7.0 2.0,17.0"), "poly1": polygon("1.0,1.0 1.0,4.0 3.0,4.0 3.0,1.0"), "poly2": polygon("1.0,1.0 1.0,4.0 3.0,4.0 3.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0"), "circle" : circle("5.5,1.0 10.0")}
+{"id": 4, "point": point("43.5083,-79.3007"), "kwds": "enterprisecamp torcamp", "line1": line("4.0,7.0 2.0,17.0"), "line2": line("4.0,7.0 2.0,17.0"), "poly1": polygon("1.0,1.0 1.0,4.0 3.0,4.0 3.0,1.0 2.0,1.0 1.0,0.0"), "poly2": polygon("2.0,1.0 2.0,2.0 3.0,2.0 3.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0"), "circle" : circle("77.0,4.0 30.0")}
+{"id": 5, "point": point("43.5083,-79.3007"), "kwds": "enterprisecamp torcamp", "line1": line("4.0,7.0 2.0,17.0"), "line2": line("4.0,7.0 2.0,17.0"), "poly1": polygon("100.0,100.0 100.0,400.0 300.0,400.0 300.0,100.0"), "poly2": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0"), "circle" : circle("88.0,1.0 10.0")}
+{"id": 6, "point": point("43.5083,-79.3007"), "kwds": "enterprisecamp torcamp", "line1": line("0.0,5.0 1.0,7.0"), "line2": line("4.0,7.0 2.0,-17.0"), "poly1": polygon("1.0,1.0 1.0,4.0 3.0,4.0 3.0,1.0"), "poly2": polygon("3.1,1.0 2.9,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0"), "circle" : circle("1.0,1.0 10.0")}
+{"id": 7, "point": point("43.5083,-79.3007"), "kwds": "enterprisecamp torcamp", "line1": line("0.0,5.0 4.0,7.1"), "line2": line("4.0,7.0 2.0,-17.0"), "poly1": polygon("-5.0,-2.0 -4.0,-1.0 -3.0,-1.0 -2.0,-2.0 -4.0,-4.0 -5.0,-3.0"), "poly2": polygon("3.0,1.0 3.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("3.0,6.0 5.0,7.0"), "circle" : circle("13.0,75.0 1.0")}
+{"id": 8, "point": point("43.5083,-79.3007"), "kwds": "enterprisecamp torcamp", "line1": line("4.0,7.0 2.0,17.0"), "line2": line("4.0,7.0 2.0,17.0"), "poly1": polygon("-5.0,-2.0 -4.0,-1.0 -3.0,-1.0 -2.0,-2.0 -4.0,-4.0 -5.0,-3.0"), "poly2": polygon("-3.0,-3.0 -1.0,-3.0 -3.0,-5.0"), "rec": rectangle("0.0,0.0 4.0,4.0"), "circle" : circle("76.0,87.0 50.0")}
+{"id": 9, "point": point("5.0,1.0"), "kwds": "sign ahead", "line1": line("5.0,1.0 5.0,4.0"), "line2": line("5.0,8.0 5.0,1.0"), "poly1": polygon("1.0,1.0 1.0,4.0 3.0,4.0 3.0,1.0"), "poly2": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0"), "circle" : circle("11.0,14.0 15.0")}
+{"id": 10, "point": point("2.0,3.0"), "kwds": "sign ahead", "line1": line("1.0,2.0 3.0,4.0"), "line2": line("5.0,8.0 5.0,1.0"), "poly1": polygon("6.01,1.0 6.0,4.0 12.0,4.0 12.0,1.0"), "poly2": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0"), "circle" : circle("1.0,76.0 17.0")}
+{"id": 11, "point": point("4.9,0.0"), "kwds": "sign ahead", "line1": line("1.0,2.0 3.0,4.0"), "line2": line("5.0,8.0 5.0,1.0"), "poly1": polygon("4.9,0.1 4.9,4.0 12.0,4.0 12.0,1.0"), "poly2": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0"), "circle" : circle("22.0,35.0 144.0")}
+{"id": 12, "point": point("6.0,3.0"), "kwds": "sign ahead", "line1": line("1.0,2.0 3.0,4.0"), "line2": line("5.0,8.0 5.0,1.0"), "poly1": polygon("4.0,1.0 4.0,4.0 12.0,4.0 12.0,1.0"), "poly2": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0"), "circle" : circle("1.0,23.0 12.0")}
+{"id": 13, "point": point("5.0,5.0"), "kwds": "sign ahead", "line1": line("1.0,2.0 3.0,4.0"), "line2": line("5.0,8.0 5.0,1.0"), "poly1": polygon("6.0,1.0 6.0,4.0 12.0,4.0 12.0,1.0"), "poly2": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0"), "circle" : circle("30.0,11.0 11.0")}
+{"id": 14, "point": point("5.1,5.1"), "kwds": "sign ahead", "line1": line("1.0,2.0 3.0,4.0"), "line2": line("5.0,8.0 5.0,1.0"), "poly1": polygon("5.0,1.0 5.0,4.0 12.0,4.0 12.0,1.0"), "poly2": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0"), "circle" : circle("1.0,66.0 17.0")}
+{"id": 15, "point": point("-2.0,3.0"), "kwds": "sign ahead", "line1": line("1.0,2.0 3.0,4.0"), "line2": line("5.0,8.0 5.0,1.0"), "poly1": polygon("5.1,1.0 5.1,4.0 12.0,4.0 12.0,1.0"), "poly2": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0"), "circle" : circle("12.0,87.0 10.0")}
+{"id": 16, "point": point("-2.0,3.0"), "kwds": "sign ahead", "line1": line("1.0,2.0 3.0,4.0"), "line2": line("5.0,8.0 5.0,1.0"), "poly1": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "poly2": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0"), "circle" : circle("1.0,35.0 10.0")}
+{"id": 17, "point": point("4.1,7.0"), "kwds": "sign ahead", "line1": line("4.0,7.0 9.0,7.0"), "line2": line("5.0,8.0 5.0,1.0"), "poly1": polygon("0.0,6.0 0.0,0.0 3.0,0.0 4.0,1.0 6.0,1.0 8.0,0.0 12.0,0.0 13.0,2.0 8.0,2.0 8.0,4.0 11.0,4.0 11.0,6.0 6.0,6.0 4.0,3.0 2.0,6.0"), "poly2": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0"), "circle" : circle("1.0,51.0 10.0")}
+{"id": 18, "point": point("-2.0,3.0"), "kwds": "sign ahead", "line1": line("1.0,2.0 3.0,4.0"), "line2": line("5.0,8.0 5.0,1.0"), "poly1": polygon("5.0,1.0 7.0,1.0 7.0,4.0 6.0,2.0 5.0,4.0"), "poly2": polygon("6.0,3.0 7.0,5.0 6.0,7.0 5.0,5.0"), "rec": rectangle("0.0,0.0 4.0,4.0"), "circle" : circle("43.0,45.0 12.0")}
+{"id": 19, "point": point("-2.0,3.0"), "kwds": "sign ahead", "line1": line("1.0,2.0 3.0,4.0"), "line2": line("5.0,8.0 5.0,1.0"), "poly1": polygon("5.0,1.0 7.0,1.0 7.0,4.0 6.0,2.0 5.0,4.0"), "poly2": polygon("6.0,1.0 7.0,5.0 6.0,7.0 5.0,5.0"), "rec": rectangle("0.0,0.0 4.0,4.0"), "circle" : circle("65.0,2.0 13.0")}
+{"id": 20, "point": point("4.0,3.0"), "kwds": "sign ahead", "line1": line("20.0,20.0 30.0,40.0"), "line2": line("5.0,8.0 0.0,1.0"), "poly1": polygon("4.0,1.0 4.0,4.0 12.0,4.0 12.0,1.0"), "poly2": polygon("50.0,10.0 50.0,40.0 70.0,40.0 70.0,10.0"), "rec": rectangle("0.0,0.0 4.0,4.0"), "circle" : circle("1.0,23.0 12.0")}
+{"id": 21, "point": point("0.0,5.0"), "kwds": "sign ahead", "line1": line("0.0,5.0 0.0,40.0"), "line2": line("5.0,8.0 0.0,1.0"), "poly1": polygon("5.1,5.1 14.0,14.0 22.0,14.0 22.0,10.0"), "poly2": polygon("50.0,10.0 50.0,40.0 70.0,40.0 70.0,10.0"), "rec": rectangle("0.0,0.0 5.1,5.1"), "circle" : circle("1.0,23.0 12.0")}
\ No newline at end of file
diff --git a/asterix/asterix-app/data/spatial/spatialDataNulls.json b/asterix/asterix-app/data/spatial/spatialDataNulls.json
new file mode 100644
index 0000000..fbc3cee
--- /dev/null
+++ b/asterix/asterix-app/data/spatial/spatialDataNulls.json
@@ -0,0 +1,19 @@
+{"id": 1, "point": point("4.1,7.0"), "kwds": "sign ahead", "line1": line("4.0,7.0 9.0,7.0"), "line2": line("5.0,8.0 5.0,1.0"), "poly1": polygon("1.0,1.0 1.0,4.0 3.0,4.0 3.0,1.0"), "poly2": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.2,7.0")}
+{"id": 2, "point": point("40.2152,-75.0449"), "kwds": "factory hosedan", "line1": line("-4.0,2.0 2.0,2.0"), "line2": line("4.0,7.0 2.0,17.0"), "poly1": polygon("1.0,1.0 1.0,4.0 3.0,4.0 3.0,1.0"), "poly2": polygon("5.0,1.0 5.0,4.0 7.0,4.0 7.0,1.0"), "rec": rectangle("0.0,0.0 4.0,4.0")}
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\ No newline at end of file