Disabled external gits

Alpano/tests/ch/epfl/alpano/sigcheck/SignatureChecks_03.java

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+package ch.epfl.alpano.sigcheck;
+
+import ch.epfl.alpano.GeoPoint;
+import ch.epfl.alpano.Interval2D;
+import ch.epfl.alpano.dem.ContinuousElevationModel;
+import ch.epfl.alpano.dem.DiscreteElevationModel;
+
+final class SignatureChecks_03 {
+    private SignatureChecks_03() {}
+
+    String checkDiscElevationModel(DiscreteElevationModel d) throws Exception {
+        double a = DiscreteElevationModel.SAMPLES_PER_DEGREE * DiscreteElevationModel.SAMPLES_PER_RADIAN;
+        a = DiscreteElevationModel.sampleIndex(a);
+        Interval2D e = d.extent();
+        int v = 0;
+        a = d.elevationSample(v, v);
+        d = d.union(d);
+        d.close();
+        return d.toString() + e;
+    }
+
+    String checkContElevationModel() {
+        DiscreteElevationModel md = null;
+        ContinuousElevationModel m = new ContinuousElevationModel(md);
+        GeoPoint p = null;
+        double e = m.elevationAt(p) + m.slopeAt(p);
+        return String.valueOf(e);
+    }
+}