Initial

meshwrp/convex.cpp

@@ -0,0 +1,54 @@
+#include <meshwrp/main.hpp>
+#include <meshwrp/convex.hpp>
+#include <meshwrp/image.hpp>
+#include <common/math.hpp>
+#include <common/guiwnd.hpp>
+
+Convex::Convex()
+: mWidth(0), mHeight(0), mxHalf(0), myHalf(0)
+{
+}
+
+Convex::~Convex()
+{
+}
+
+Image Convex::performConvex(Image &srcImage,GUIWindow &window)
+{
+	RGB888 rgb888;
+  Image dstImage;
+	POINT tempPoint;
+	double scaleFactor;
+	double tempFactor;
+
+  mWidth=srcImage.width();
+	mHeight=srcImage.height();
+	mxHalf=mWidth/2;
+	myHalf=mHeight/2;
+  dstImage.newImage(mWidth,mHeight,window);
+	for(int y=0;y<mHeight;y++)
+	{
+	  for(int x=0;x<mWidth;x++)
+		{
+			setPoint(x,y,tempPoint);
+			cartesianPoint(tempPoint);
+			tempFactor=::sqrt(((LONG)tempPoint.x*(LONG)tempPoint.x)+((LONG)tempPoint.y*(LONG)tempPoint.y));
+			tempFactor*=Math::piOver180();
+			if(tempFactor)scaleFactor=(::tan(::atan(tempFactor)/2.00))/tempFactor;
+			else scaleFactor=0.00;
+			scaleFactor*=2;
+			tempFactor=scaleFactor*(double)tempPoint.x;
+			tempFactor+=(tempFactor<0?-.5:.5);
+			tempPoint.x=tempFactor;
+			tempFactor=scaleFactor*(double)tempPoint.y;
+			tempFactor+=(tempFactor<0?-.5:.5);
+			tempPoint.y=tempFactor;
+			imagePoint(tempPoint);
+			if(tempPoint.x>=mWidth)continue;
+			if(tempPoint.y>=mHeight)continue;
+      srcImage.getAt(y,x,rgb888);
+			dstImage.setAt(tempPoint.y,tempPoint.x,rgb888);
+		}
+	}
+	return dstImage;
+}