Exemplos de rawLines em C++ (Cpp)

Exemplo n.º 1

Arquivo: gigraph.cpp Projeto: acekiller/touchvg

bool GiGraphics::drawLines(const GiContext* ctx, int count, 
                           const Point2d* points, bool modelUnit)
{
    if (m_impl->drawRefcnt == 0 || count < 2 || points == NULL)
        return false;
    if (count > 0x2000)
        count = 0x2000;
    GiLock lock (&m_impl->drawRefcnt);

    int i;
    Point2d pt1, pt2, ptLast;
    vector<Point2d> pxpoints;
    vector<Point2d> pointBuf;
    bool ret = false;
    Matrix2d matD(S2D(xf(), modelUnit));

    const Box2d extent (count, points);                 // 模型坐标范围
    if (!DRAW_RECT(m_impl, modelUnit).isIntersect(extent))  // 全部在显示区域外
        return false;

    if (DRAW_MAXR(m_impl, modelUnit).contains(extent))  // 全部在显示区域内
    {
        pxpoints.resize(count);
        Point2d* pxs = &pxpoints.front();
        int n = 0;
        for (i = 0; i < count; i++)
        {
            pt2 = points[i] * matD;
            if (i == 0 || fabs(pt1.x - pt2.x) > 2 || fabs(pt1.y - pt2.y) > 2)
            {
                pt1 = pt2;
                pxs[n++] = pt2;
            }
        }
        ret = rawLines(ctx, pxs, n);
    }
    else                                            // 部分在显示区域内
    {
        pointBuf.resize(count);
        for (i = 0; i < count; i++)                 // 转换到像素坐标
            pointBuf[i] = points[i] * matD;
        Point2d* pts = &pointBuf.front();

        ptLast = pts[0];
        PolylineAux aux(this, ctx);
        for (i = 0; i < count - 1; i++)
        {
            ret = DrawEdge(count, i, pts, ptLast, aux, m_impl->rectDraw) || ret;
        }
    }

    return ret;
}

Exemplo n.º 2

Arquivo: ossimGeneralRasterInfo.cpp Projeto: star-labs/star_ossim

bool ossimGeneralRasterInfo::saveState(ossimKeywordlist& kwl,
                                       const char* prefix) const
{
   for (ossim_uint32 i=0; i<theImageFileList.size(); ++i)
   {
      ossimString kw = ossimKeywordNames::FILENAME_KW;
      kw += ossimString::toString(i+1);
      kwl.add(prefix, theImageFileList[i].c_str());
   }

   theMetaData.saveState(kwl, prefix);

   kwl.add(prefix,
           NUMBER_LINES,
           ossimString::toString( rawLines() ), true);
   kwl.add(prefix,
           NUMBER_SAMPLES,
           ossimString::toString( rawSamples() ),
           true);
   kwl.add(prefix,
           HEADER_SIZE,
           ossimString::toString(theHeaderSize),
           true);
   kwl.add(prefix,
           SUB_IMAGE_OFFSET_LINE,
           theSubImageOffset.line,
           true);
   kwl.add(prefix,
           SUB_IMAGE_OFFSET_SAMP,
           theSubImageOffset.samp,
           true);
   kwl.add(prefix,
           VALID_START_LINE,
           theValidImageRect.ul().y,
           true);
   kwl.add(prefix,
           VALID_STOP_LINE,
           theValidImageRect.lr().y,
           true);
   kwl.add(prefix,
           VALID_START_SAMPLE,
           theValidImageRect.ul().x,
           true);
   kwl.add(prefix,
           VALID_STOP_SAMPLE,
           theValidImageRect.ur().x,
           true);
   kwl.add(prefix,
           ossimKeywordNames::INTERLEAVE_TYPE_KW,
           INTERLEAVE_TYPE_LUT.getEntryString(theInterleaveType),
           true);

   kwl.add(prefix,
           PIXELS_TO_CHOP,
           thePixelsToChop,
           true);

   kwl.add(prefix,
           SET_NULLS,
           theSetNullsMode,
           true);


   if (bytesPerPixel() > 1)
   {
      kwl.add(prefix,
              ossimKeywordNames::BYTE_ORDER_KW,
              (theImageDataByteOrder == OSSIM_LITTLE_ENDIAN ? "little_endian" :
               "big_endian"),
              true);
   }

   return true;
}