C++ Projection::GeoToScreen方法代码示例

本文整理汇总了C++中Projection::GeoToScreen方法的典型用法代码示例。如果您正苦于以下问题：C++ Projection::GeoToScreen方法的具体用法？C++ Projection::GeoToScreen怎么用？C++ Projection::GeoToScreen使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Projection的用法示例。

在下文中一共展示了Projection::GeoToScreen方法的9个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: vp

void
DrawGeoBitmap(const RawBitmap &bitmap, PixelSize bitmap_size,
              const GeoBounds &bounds,
              const Projection &projection)
{
  assert(bounds.IsValid());

  const BulkPixelPoint vertices[] = {
    projection.GeoToScreen(bounds.GetNorthWest()),
    projection.GeoToScreen(bounds.GetNorthEast()),
    projection.GeoToScreen(bounds.GetSouthWest()),
    projection.GeoToScreen(bounds.GetSouthEast()),
  };

  const ScopeVertexPointer vp(vertices);

  const GLTexture &texture = bitmap.BindAndGetTexture();
  const PixelSize allocated = texture.GetAllocatedSize();

  const GLfloat src_x = 0, src_y = 0, src_width = bitmap_size.cx,
    src_height = bitmap_size.cy;

  GLfloat x0 = src_x / allocated.cx;
  GLfloat y0 = src_y / allocated.cy;
  GLfloat x1 = (src_x + src_width) / allocated.cx;
  GLfloat y1 = (src_y + src_height) / allocated.cy;

  const GLfloat coord[] = {
    x0, y0,
    x1, y0,
    x0, y1,
    x1, y1,
  };

#ifdef USE_GLSL
  OpenGL::texture_shader->Use();
  glEnableVertexAttribArray(OpenGL::Attribute::TEXCOORD);
  glVertexAttribPointer(OpenGL::Attribute::TEXCOORD, 2, GL_FLOAT, GL_FALSE,
                        0, coord);
#else
  const GLEnable<GL_TEXTURE_2D> scope;
  OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);

  glEnableClientState(GL_TEXTURE_COORD_ARRAY);
  glTexCoordPointer(2, GL_FLOAT, 0, coord);
#endif

  glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);

#ifdef USE_GLSL
  glDisableVertexAttribArray(OpenGL::Attribute::TEXCOORD);
  OpenGL::solid_shader->Use();
#else
  glDisableClientState(GL_TEXTURE_COORD_ARRAY);
#endif
}

开发者ID:Advi42，项目名称:XCSoar，代码行数:56，代码来源:GeoBitmapRenderer.cpp

示例2:

void
MapCanvas::project(const Projection &projection,
                   const SearchPointVector &points, RasterPoint *screen)
{
  for (auto it = points.begin(); it != points.end(); ++it)
    *screen++ = projection.GeoToScreen(it->get_location());
}

开发者ID:davidswelt，项目名称:XCSoar，代码行数:7，代码来源:MapCanvas.cpp

示例3:

void
MapCanvas::Project(const Projection &projection,
                   const SearchPointVector &points, BulkPixelPoint *screen)
{
  for (auto it = points.begin(); it != points.end(); ++it)
    *screen++ = projection.GeoToScreen(it->GetLocation());
}

开发者ID:Advi42，项目名称:XCSoar，代码行数:7，代码来源:MapCanvas.cpp

示例4:

static void
TestGeoScreenCouple(const Projection prj, const GeoPoint geo,
                    long x, long y)
{
    RasterPoint tmp_pt = prj.GeoToScreen(geo);
    ok1(tmp_pt.x == x);
    ok1(tmp_pt.y == y);

    GeoPoint tmp_geo = prj.ScreenToGeo(x, y);
    ok1(equals(tmp_geo.latitude, geo.latitude));
    ok1(equals(tmp_geo.longitude, geo.longitude));
}

开发者ID:j-konopka，项目名称:XCSoar-TE，代码行数:12，代码来源:TestProjection.cpp

示例5: Prepare

void
TrailRenderer::DrawTraceVector(Canvas &canvas, const Projection &projection,
                               const TracePointVector &trace)
{
  const unsigned n = trace.size();
  RasterPoint *p = Prepare(n);

  for (const auto &i : trace)
    *p++ = projection.GeoToScreen(i.GetLocation());

  DrawPreparedPolyline(canvas, n);
}

开发者ID:kwtskran，项目名称:XCSoar，代码行数:12，代码来源:TrailRenderer.cpp

示例6: assert

void
TrailRenderer::DrawTriangle(Canvas &canvas, const Projection &projection,
                            const ContestTraceVector &trace)
{
  assert(trace.size() == 5);

  const unsigned start = 1, n = 3;

  RasterPoint *p = Prepare(n);

  for (unsigned i = start; i < start + n; ++i)
    *p++ = projection.GeoToScreen(trace[i].GetLocation());

  DrawPreparedPolygon(canvas, n);
}

开发者ID:kwtskran，项目名称:XCSoar，代码行数:15，代码来源:TrailRenderer.cpp

示例7: pen

void
OZWindow::OnPaint(Canvas &canvas)
{
    canvas.ClearWhite();
    if (oz == NULL)
        return;

    const int offset = 0;

    roz.Draw(canvas, OZRenderer::LAYER_SHADE, projection, *oz, offset);
    roz.Draw(canvas, OZRenderer::LAYER_INACTIVE, projection, *oz, offset);
    roz.Draw(canvas, OZRenderer::LAYER_ACTIVE, projection, *oz, offset);

    /* debugging for ObservationZone::GetBoundary() */
    Pen pen(1, COLOR_RED);
    canvas.Select(pen);
    const OZBoundary boundary = oz->GetBoundary();
    for (auto i = boundary.begin(), end = boundary.end(); i != end; ++i) {
        RasterPoint p = projection.GeoToScreen(*i);
        canvas.DrawLine(p.x - 3, p.y - 3, p.x + 3, p.y + 3);
        canvas.DrawLine(p.x + 3, p.y - 3, p.x - 3, p.y + 3);
    }
}

开发者ID:j-konopka，项目名称:XCSoar-TE，代码行数:23，代码来源:RunRenderOZ.cpp

示例8: switch

void
RenderObservationZone::Draw(Canvas &canvas, const Projection &projection,
                            const ObservationZonePoint &_oz) const
{
  switch (_oz.shape) {
  case ObservationZonePoint::LINE:
  case ObservationZonePoint::FAI_SECTOR: {
    const SectorZone &oz = (const SectorZone &)_oz;

    RasterPoint p_center = projection.GeoToScreen(oz.get_location());
    if (layer != LAYER_ACTIVE)
      canvas.segment(p_center.x, p_center.y,
                     projection.GeoToScreenDistance(oz.getRadius()),
                     oz.getStartRadial() - projection.GetScreenAngle(),
                     oz.getEndRadial() - projection.GetScreenAngle());
    else {
      RasterPoint p_start = projection.GeoToScreen(oz.get_SectorStart());
      RasterPoint p_end = projection.GeoToScreen(oz.get_SectorEnd());

      canvas.two_lines(p_start, p_center, p_end);
    }

    break;
  }

  case ObservationZonePoint::CYLINDER: {
    const CylinderZone &oz = (const CylinderZone &)_oz;

    if (layer != LAYER_INACTIVE) {
      RasterPoint p_center = projection.GeoToScreen(oz.get_location());
      canvas.circle(p_center.x, p_center.y,
                    projection.GeoToScreenDistance(oz.getRadius()));
    }

    break;
  }

  case ObservationZonePoint::BGA_START:
  case ObservationZonePoint::SECTOR: {
    const SectorZone &oz = (const SectorZone &)_oz;

    if (layer != LAYER_INACTIVE) {
      RasterPoint p_center = projection.GeoToScreen(oz.get_location());

      canvas.segment(p_center.x, p_center.y,
                     projection.GeoToScreenDistance(oz.getRadius()),
                     oz.getStartRadial() - projection.GetScreenAngle(),
                     oz.getEndRadial() - projection.GetScreenAngle());

      RasterPoint p_start = projection.GeoToScreen(oz.get_SectorStart());
      RasterPoint p_end = projection.GeoToScreen(oz.get_SectorEnd());
      canvas.two_lines(p_start, p_center, p_end);
    }

    break;
  }

  case ObservationZonePoint::KEYHOLE:
  case ObservationZonePoint::BGAFIXEDCOURSE:
  case ObservationZonePoint::BGAENHANCEDOPTION: {
    const SectorZone &oz = (const SectorZone &)_oz;
    RasterPoint p_center = projection.GeoToScreen(oz.get_location());
    canvas.keyhole(p_center.x, p_center.y,
                   projection.GeoToScreenDistance(fixed(500)),
                   projection.GeoToScreenDistance(oz.getRadius()),
                   oz.getStartRadial() - projection.GetScreenAngle(),
                   oz.getEndRadial() - projection.GetScreenAngle());

    break;
  }

  case ObservationZonePoint::ANNULAR_SECTOR: {
    const AnnularSectorZone &oz = (const AnnularSectorZone &)_oz;
    RasterPoint p_center = projection.GeoToScreen(oz.get_location());
    canvas.annulus(p_center.x, p_center.y,
                   projection.GeoToScreenDistance(oz.getInnerRadius()),
                   projection.GeoToScreenDistance(oz.getRadius()),
                   oz.getStartRadial() - projection.GetScreenAngle(),
                   oz.getEndRadial() - projection.GetScreenAngle());
  }

  }
}

开发者ID:Mrdini，项目名称:XCSoar，代码行数:83，代码来源:RenderObservationZone.cpp

示例9: Prepare

void
OZRenderer::Draw(Canvas &canvas, Layer layer, const Projection &projection,
                 const ObservationZonePoint &_oz, int offset)
{
  if (layer == LAYER_SHADE && offset < 0)
    return;

  Prepare(canvas, layer, offset);

  switch (_oz.shape) {
  case ObservationZonePoint::LINE:
  case ObservationZonePoint::FAI_SECTOR: {
    const SectorZone &oz = (const SectorZone &)_oz;

    RasterPoint p_center = projection.GeoToScreen(oz.get_location());
    if (layer != LAYER_ACTIVE)
      canvas.DrawSegment(p_center.x, p_center.y,
                         projection.GeoToScreenDistance(oz.getRadius()),
                         oz.getStartRadial() - projection.GetScreenAngle(),
                         oz.getEndRadial() - projection.GetScreenAngle());
    else {
      RasterPoint p_start = projection.GeoToScreen(oz.get_SectorStart());
      RasterPoint p_end = projection.GeoToScreen(oz.get_SectorEnd());

      canvas.DrawTwoLines(p_start, p_center, p_end);
    }

    break;
  }

  case ObservationZonePoint::CYLINDER: {
    const CylinderZone &oz = (const CylinderZone &)_oz;

    if (layer != LAYER_INACTIVE) {
      RasterPoint p_center = projection.GeoToScreen(oz.get_location());
      canvas.circle(p_center.x, p_center.y,
                    projection.GeoToScreenDistance(oz.getRadius()));
    }

    break;
  }

  case ObservationZonePoint::BGA_START:
  case ObservationZonePoint::SECTOR: {
    const SectorZone &oz = (const SectorZone &)_oz;

    if (layer != LAYER_INACTIVE) {
      RasterPoint p_center = projection.GeoToScreen(oz.get_location());

      canvas.DrawSegment(p_center.x, p_center.y,
                         projection.GeoToScreenDistance(oz.getRadius()),
                         oz.getStartRadial() - projection.GetScreenAngle(),
                         oz.getEndRadial() - projection.GetScreenAngle());

      RasterPoint p_start = projection.GeoToScreen(oz.get_SectorStart());
      RasterPoint p_end = projection.GeoToScreen(oz.get_SectorEnd());
      canvas.DrawTwoLines(p_start, p_center, p_end);
    }

    break;
  }

  case ObservationZonePoint::KEYHOLE:
  case ObservationZonePoint::BGAFIXEDCOURSE:
  case ObservationZonePoint::BGAENHANCEDOPTION: {
    const SectorZone &oz = (const SectorZone &)_oz;
    RasterPoint p_center = projection.GeoToScreen(oz.get_location());
    canvas.DrawKeyhole(p_center.x, p_center.y,
                       projection.GeoToScreenDistance(fixed(500)),
                       projection.GeoToScreenDistance(oz.getRadius()),
                       oz.getStartRadial() - projection.GetScreenAngle(),
                       oz.getEndRadial() - projection.GetScreenAngle());

    break;
  }

  case ObservationZonePoint::ANNULAR_SECTOR: {
    const AnnularSectorZone &oz = (const AnnularSectorZone &)_oz;
    RasterPoint p_center = projection.GeoToScreen(oz.get_location());
    canvas.DrawAnnulus(p_center.x, p_center.y,
                       projection.GeoToScreenDistance(oz.getInnerRadius()),
                       projection.GeoToScreenDistance(oz.getRadius()),
                       oz.getStartRadial() - projection.GetScreenAngle(),
                       oz.getEndRadial() - projection.GetScreenAngle());
  }

  }

  Finish(canvas, layer);
}

开发者ID:mobotics，项目名称:XCSoar，代码行数:90，代码来源:OZRenderer.cpp

注：本文中的Projection::GeoToScreen方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。