amath/app/lib/fgrid.h

77 lines
2.3 KiB
C++

/*
* Copyright (c) 2015-2017 Carsten Sonne Larsen <cs@innolan.dk>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#ifndef _FUNCTION_GRID_H
#define _FUNCTION_GRID_H
/**
* @file fgrid.h
* @brief Function grid used with graphs.
*
*/
#include "lib/real.h"
#include "main/functions.h"
class Grid {
public:
Grid(UserFunction* function);
~Grid();
void SetFunctionBounderies(double minX, double maxX);
void SetScreenBounderues(int minX, int maxX, int minY, int maxY);
void GetScreenCoordinates(double value, int *x, int *y);
void GetScreenCoordinates(double xval, int* x, double yval, int* y);
double GetHorizontalResolution();
void GetXAxis(int *xstart, int *xend, int *ystart, int *yend);
void GetYAxis(int *xstart, int *xend, int *ystart, int *yend);
private:
double FunctionValue(double parameter);
UserFunction* function;
RealNumber *parameter;
double minX;
double maxX;
double minY;
double maxY;
int pad;
int screenMinX;
int screenMaxX;
int screenMinY;
int screenMaxY;
int originX;
int originY;
double zoom;
double scaleX;
double scaleY;
};
#endif