overzealously deleted files
git-svn-id: http://skia.googlecode.com/svn/trunk@3502 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/experimental/Intersection/QuadraticParameterization_TestUtility.cpp b/experimental/Intersection/QuadraticParameterization_TestUtility.cpp
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+++ b/experimental/Intersection/QuadraticParameterization_TestUtility.cpp
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+// included by QuadraticParameterization.cpp
+// accesses internal functions to validate parameterized coefficients
+
+#include "Parameterization_Test.h"
+
+bool point_on_parameterized_curve(const Quadratic& quad, const _Point& point) {
+ double coeffs[coeff_count];
+ implicit_coefficients(quad, coeffs);
+ double xx = coeffs[ xx_coeff] * point.x * point.x;
+ double xy = coeffs[ xy_coeff] * point.x * point.y;
+ double yy = coeffs[ yy_coeff] * point.y * point.y;
+ double x = coeffs[ x_coeff] * point.x;
+ double y = coeffs[ y_coeff] * point.y;
+ double c = coeffs[ c_coeff];
+ double sum = xx + xy + yy + x + y + c;
+ return approximately_zero(sum);
+}