SkDLineIntersection.cpp File Reference

#include "include/core/SkTypes.h"
#include "src/pathops/SkIntersections.h"
#include "src/pathops/SkPathOpsLine.h"
#include "src/pathops/SkPathOpsPoint.h"
#include "src/pathops/SkPathOpsTypes.h"
#include <cmath>
#include <cstdint>
#include <utility>

Go to the source code of this file.

Functions
static int	horizontal_coincident (const SkDLine &line, double y)
static int	vertical_coincident (const SkDLine &line, double x)

Function Documentation

horizontal_coincident()

static int horizontal_coincident ( const SkDLine &  line, double  y  )

static

Definition at line 188 of file SkDLineIntersection.cpp.

                                                                {
    double min = line[0].fY;
    double max = line[1].fY;
    if (min > max) {
        using std::swap;
        swap(min, max);
    }
    if (min > y || max < y) {
        return 0;
    }
    if (AlmostEqualUlps(min, max) && max - min < fabs(line[0].fX - line[1].fX)) {
        return 2;
    }
    return 1;
}

vertical_coincident()

static int vertical_coincident ( const SkDLine &  line, double  x  )

static

Definition at line 266 of file SkDLineIntersection.cpp.

                                                              {
    double min = line[0].fX;
    double max = line[1].fX;
    if (min > max) {
        using std::swap;
        swap(min, max);
    }
    if (!precisely_between(min, x, max)) {
        return 0;
    }
    if (AlmostEqualUlps(min, max)) {
        return 2;
    }
    return 1;
}