DenysMedvid/pdf2htmlEX
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Delete an unintentionally commited file.

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Duan Yao 2014-06-17 17:20:13 +08:00
parent a5ac6b4d0d
commit 69ceff7dbd
1 changed files with 0 additions and 72 deletions
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src/util/math.bk.cc
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#include <cstring>
#include <limits>
#include <algorithm>
#include "math.h"
using std::min;
using std::max;
namespace pdf2htmlEX {
void tm_transform(const double * tm, double & x, double & y, bool is_delta)
{
double xx = x, yy = y;
x = tm[0] * xx + tm[2] * yy;
y = tm[1] * xx + tm[3] * yy;
if(!is_delta)
{
x += tm[4];
y += tm[5];
}
}
void tm_multiply(const double * tm_left, const double * tm_right, double * tm_result)
{
double old[4];
memcpy(old, tm_left, sizeof(old));
tm_result[0] = tm_left[0] * tm_right[0] + tm_left[2] * tm_right[1];
tm_result[1] = tm_left[1] * tm_right[0] + tm_left[3] * tm_right[1];
tm_result[2] = tm_left[0] * tm_right[2] + tm_left[2] * tm_right[3];
tm_result[3] = tm_left[1] * tm_right[2] + tm_left[3] * tm_right[3];
tm_result[4] += tm_left[0] * tm_right[4] + tm_left[2] * tm_right[5];
tm_result[5] += tm_left[1] * tm_right[4] + tm_left[3] * tm_right[5];
}
void tm_transform_bbox(const double * tm, double * bbox)
{
double & x1 = bbox[0];
double & y1 = bbox[1];
double & x2 = bbox[2];
double & y2 = bbox[3];
double _[4][2];
_[0][0] = _[1][0] = x1;
_[0][1] = _[2][1] = y1;
_[2][0] = _[3][0] = x2;
_[1][1] = _[3][1] = y2;
x1 = y1 = std::numeric_limits<double>::max();
x2 = y2 = std::numeric_limits<double>::min();
for(int i = 0; i < 4; ++i)
{
auto & x = _[i][0];
auto & y = _[i][1];
tm_transform(tm, x, y);
if(x < x1) x1 = x;
if(x > x2) x2 = x;
if(y < y1) y1 = y;
if(y > y2) y2 = y;
}
}
bool bbox_intersect(double * bbox1, double * bbox2)
{
return min(bbox1[0], bbox1[2]) < max(bbox2[0], bbox2[2])
&& max(bbox1[0], bbox1[2]) > min(bbox2[0], bbox2[2])
&& min(bbox1[1], bbox1[3]) < max(bbox2[1], bbox2[3])
&& max(bbox1[1], bbox1[3]) > min(bbox2[1], bbox2[3]);
}
} //namespace pdf2htmlEX