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/*
* Copyright (c) 2015 Tricoire Sebastien 3dsman@free.fr
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event will the authors be held liable for any damages
* arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software
* in a product, an acknowledgment in the product documentation would be
* appreciated but is not required.
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
* 3. This notice may not be removed or altered from any source distribution.
*
*/
#include "curves/OE_pointcurve.h"
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#include "OE_utils.h"
#include <iostream>
#include <GL/gl.h>
#include <cstdlib>
#include <math.h>
#include <cstdio>
#include <cstring>
#include <algorithm>
unsigned char OE_pointcurve::controlLineColor[] = {100,60,92,255};
unsigned char OE_pointcurve::controlPointColor[] = {100,60,92,255};
unsigned char OE_pointcurve::controlEndPointColor[] = {100,60,92,255};
OE_pointcurve::OE_pointcurve(){}
OE_pointcurve::OE_pointcurve(std::vector<vector_2d> points, bool closed)
{
pts = points;
this->closed = closed; // Flag indicating if shapes should be treated as closed.
}
OE_pointcurve::~OE_pointcurve()
{
}
bool OE_pointcurve::getPoint(uint16_t nb, float* x, float* y)
{
if ((pts.size())&&(nb<=pts.size()))
{
*x = pts.at(nb-1).x;
*y = pts.at(nb-1).y;
return true;
}
return false;
}
bool OE_pointcurve::getPoint(uint16_t nb, vector_2d* pt)
{
if ((pts.size())&&(nb<=pts.size()))
{
pt->x = pts.at(nb-1).x;
pt->y = pts.at(nb-1).y;
return true;
}
return false;
}
bool OE_pointcurve::setPoint(uint16_t nb, float x, float y)
{
if (nb<=pts.size())
{
pts[(nb-1)] = vector_2d(x,y);
setNeedRefresh();
return true;
}
return false;
}
bool OE_pointcurve::addPoint( float x, float y)
{
pts.push_back(vector_2d(x,y));
setNeedRefresh();
return true;
}
bool OE_pointcurve::addPoint( vector_2d pt)
{
pts.push_back(pt);
setNeedRefresh();
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return true;
}
void OE_pointcurve::lineTo(float x, float y)
{
float px,py, dx,dy;
if (pts.size() > 0) {
getPoint(pts.size(), &px, &py);
dx = x - px;
dy = y - py;
addPoint(px + dx/3.0f, py + dy/3.0f);
addPoint(x - dx/3.0f, y - dy/3.0f);
addPoint(x, y);
}
}
void OE_pointcurve::lineTo(vector_2d pt)
{
vector_2d p,d;
if (pts.size() > 0) {
getPoint(pts.size(), &p);
d = pt-p;
addPoint(p + d/3.0f);
addPoint(pt - d/3.0f);
addPoint(pt);
}
}
void OE_pointcurve::cubicBezTo(float cpx1, float cpy1, float cpx2, float cpy2, float x, float y)
{
addPoint(cpx1, cpy1);
addPoint(cpx2, cpy2);
addPoint(x, y);
}