From b85a292ce06475d560bfa1195b63a8bfe211f22d Mon Sep 17 00:00:00 2001
From: Timothy Pearson <kb9vqf@pearsoncomputing.net>
Date: Wed, 11 Jul 2012 14:15:27 -0500
Subject: Add 0.2.7 release of qwtplot3d for future TQt3 conversion and use

---
 lib/tqwtplot3d/src/qwt3d_function.cpp | 101 ++++++++++++++++++++++++++++++++++
 1 file changed, 101 insertions(+)
 create mode 100644 lib/tqwtplot3d/src/qwt3d_function.cpp

(limited to 'lib/tqwtplot3d/src/qwt3d_function.cpp')

diff --git a/lib/tqwtplot3d/src/qwt3d_function.cpp b/lib/tqwtplot3d/src/qwt3d_function.cpp
new file mode 100644
index 0000000..28d874e
--- /dev/null
+++ b/lib/tqwtplot3d/src/qwt3d_function.cpp
@@ -0,0 +1,101 @@
+#include "qwt3d_surfaceplot.h"
+#include "qwt3d_function.h"
+
+using namespace Qwt3D;
+
+Function::Function()
+:GridMapping()
+{
+}
+
+Function::Function(SurfacePlot& pw)
+:GridMapping()
+{
+  plotwidget_p = &pw;
+}
+
+Function::Function(SurfacePlot* pw)
+:GridMapping()
+{
+  plotwidget_p = pw;
+}
+
+void Function::assign(SurfacePlot& plotWidget)
+{
+	if (&plotWidget != plotwidget_p)
+		plotwidget_p = &plotWidget;
+}
+
+void Function::assign(SurfacePlot* plotWidget)
+{
+	if (plotWidget != plotwidget_p)
+		plotwidget_p = plotWidget;
+}
+
+void Function::	setMinZ(double val)
+{
+	range_p.minVertex.z = val;
+}
+
+void Function::	setMaxZ(double val)
+{
+	range_p.maxVertex.z = val;
+}
+
+bool Function::create()
+{
+	if ((umesh_p<=2) || (vmesh_p<=2) || !plotwidget_p)
+		return false;
+	
+	/* allocate some space for the mesh */
+ 	double** data         = new double* [umesh_p] ;
+
+	unsigned i,j;
+	for ( i = 0; i < umesh_p; i++) 
+	{
+		data[i]         = new double [vmesh_p];
+	}
+	
+	/* get the data */
+
+	double dx = (maxu_p - minu_p) / (umesh_p - 1);
+	double dy = (maxv_p - minv_p) / (vmesh_p - 1);
+	
+	for (i = 0; i < umesh_p; ++i) 
+	{
+		for (j = 0; j < vmesh_p; ++j) 
+		{
+			data[i][j] = operator()(minu_p + i*dx, minv_p + j*dy);
+			
+			if (data[i][j] > range_p.maxVertex.z)
+				data[i][j] = range_p.maxVertex.z;
+			else if (data[i][j] < range_p.minVertex.z)
+				data[i][j] = range_p.minVertex.z;
+		}
+	}
+
+	Q_ASSERT(plotwidget_p);
+	if (!plotwidget_p)
+	{
+		fprintf(stderr,"Function: no valid Plot3D Widget assigned");
+	}
+	else
+	{
+		((SurfacePlot*)plotwidget_p)->loadFromData(data, umesh_p, vmesh_p, minu_p, maxu_p, minv_p, maxv_p);
+	}
+
+	for ( i = 0; i < umesh_p; i++) 
+	{
+		delete [] data[i];
+	}
+
+	delete [] data;
+
+	return true;
+}
+
+bool Function::create(SurfacePlot& pl)
+{
+  assign(pl);
+  return create();
+}
-- 
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