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using System;
using System.Collections.Generic;
using System.Text;
using System.Drawing;
namespace QuickRoute.BusinessEntities
{
public static class RouteAdjustmentManager
{
public static GeneralMatrix CreateInitialTransformationMatrix(Route route, Size mapSize, LongLat projectionOrigin)
{
// create initial adjustment: route should fit in the 75% inner rectangle of the map
RectangleD routeRectangle = route.BoundingProjectedRectangle(projectionOrigin);
RectangleD mapRectangle = new RectangleD(1.0 / 8.0 * mapSize.Width, 1.0 / 8.0 * mapSize.Height, 3.0 / 4.0 * mapSize.Width, 3.0 / 4.0 * mapSize.Height);
// check width/height ratio for each of the rectangles, and adjust the map rectangle to have the same ratio as the route rectangle
double routeRatio = routeRectangle.Width / routeRectangle.Height;
double mapRatio = mapRectangle.Width / mapRectangle.Height;
if (mapRatio < routeRatio)
{
// too narrow
mapRectangle = new RectangleD(mapRectangle.Left, mapRectangle.Center.Y - mapRectangle.Width / routeRatio / 2.0, mapRectangle.Width, mapRectangle.Width / routeRatio);
}
else
{
// too wide
mapRectangle = new RectangleD(mapRectangle.Center.X - mapRectangle.Height * routeRatio / 2.0, mapRectangle.Top, mapRectangle.Height * routeRatio, mapRectangle.Height);
}
GeneralMatrix t = LinearAlgebraUtil.CalculateTransformationMatrix(routeRectangle.LowerLeft, mapRectangle.UpperLeft, routeRectangle.UpperRight, mapRectangle.LowerRight, null, false);
return t;
}
}
}
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