C++ (Cpp) nextVertexIndex примеры использования

Пример #1

Файл: FloatPolygon.cpp Проект: Wrichik1999/webkit

static unsigned findNextEdgeVertexIndex(const FloatPolygon& polygon, unsigned vertexIndex1, bool clockwise)
{
    unsigned nVertices = polygon.numberOfVertices();
    unsigned vertexIndex2 = nextVertexIndex(vertexIndex1, nVertices, clockwise);

    while (vertexIndex2 && areCoincidentPoints(polygon.vertexAt(vertexIndex1), polygon.vertexAt(vertexIndex2)))
        vertexIndex2 = nextVertexIndex(vertexIndex2, nVertices, clockwise);

    while (vertexIndex2) {
        unsigned vertexIndex3 = nextVertexIndex(vertexIndex2, nVertices, clockwise);
        if (!areCollinearPoints(polygon.vertexAt(vertexIndex1), polygon.vertexAt(vertexIndex2), polygon.vertexAt(vertexIndex3)))
            break;
        vertexIndex2 = vertexIndex3;
    }

    return vertexIndex2;
}

Пример #2

Файл: ExclusionPolygon.cpp Проект: dog-god/iptv

unsigned ExclusionPolygon::findNextEdgeVertexIndex(unsigned vertexIndex1, bool clockwise) const
{
    unsigned nVertices = numberOfVertices();
    unsigned vertexIndex2 = nextVertexIndex(vertexIndex1, nVertices, clockwise);

    while (vertexIndex2 && areCoincidentPoints(vertexAt(vertexIndex1), vertexAt(vertexIndex2)))
        vertexIndex2 = nextVertexIndex(vertexIndex2, nVertices, clockwise);

    while (vertexIndex2) {
        unsigned vertexIndex3 = nextVertexIndex(vertexIndex2, nVertices, clockwise);
        if (!areCollinearPoints(vertexAt(vertexIndex1), vertexAt(vertexIndex2), vertexAt(vertexIndex3)))
            break;
        vertexIndex2 = vertexIndex3;
    }

    return vertexIndex2;
}