private void CalculateArtificialZoom()
{
double dMapUntis = m_tile.East - m_tile.West;
double dScale = dMapUntis / m_imageStore.TextureSizePixels;
ArcIMSImageStore castImageStore = m_imageStore as ArcIMSImageStore;
if (dScale > castImageStore.MaxScale) // Zoomed out too far
{
// Want to keep the target scale as large as possible
// The smaller it is, the larger (and slower to render) the
// resulting tiles on the server side will be
double dTargetScale = castImageStore.MinScale + 0.95 * (castImageStore.MaxScale - castImageStore.MinScale);
m_dArtificialZoom = dScale / dTargetScale;
}
else if (dScale < castImageStore.MinScale) // Zoomed in too far
{
// Want to keep the target scale as small as possible
// The larger it is, the smaller (and lower resolution)
// the resulting tiles on the server side will be
double dTargetScale = castImageStore.MinScale + 0.05 * (castImageStore.MaxScale - castImageStore.MinScale);
m_dArtificialZoom = dScale / dTargetScale;
}
else
{
m_dArtificialZoom = 1.0;
}
}
internal ArcIMSDownloadRequest(IGeoSpatialDownloadTile oTile, ArcIMSImageStore oImageStore, string strLocalFilePath, CultureInfo oInfo)
: base(oTile, oImageStore, strLocalFilePath, oImageStore.ServerUri.ToBaseUri())
{
m_oCultureInfo = oInfo;
CalculateArtificialZoom();
}
internal ArcIMSImageDownload(ArcIMSImageStore oImageStore, Geosoft.Dap.Common.BoundingBox oEnvelope, int iIndexNumber, CultureInfo oInfo, double dArtificialZoom)
: base(oImageStore.ServerUri, iIndexNumber)
{
m_oCultureInfo = oInfo;
m_oImageStore = oImageStore;
m_oEnvelope = oEnvelope;
m_dArtificialZoom = dArtificialZoom;
}
internal override RenderableObject GetLayer()
{
if (m_blnIsChanged)
{
ImageStore[] aImageStore = new ImageStore[1];
aImageStore[0] = new ArcIMSImageStore(m_szServiceName, m_szLayerID, m_oServerUri as ArcIMSServerUri, TileSize, m_oCultureInfo, m_dMinScale, m_dMaxScale);
aImageStore[0].DataDirectory = null;
aImageStore[0].LevelZeroTileSizeDegrees = LevelZeroTileSize;
aImageStore[0].LevelCount = m_iLevels;
aImageStore[0].ImageExtension = ".png";
aImageStore[0].CacheDirectory = GetCachePath();
m_oQuadTileSet = new QuadTileSet(m_szTreeNodeText, m_oWorldWindow.CurrentWorld, 0,
Extents.North, Extents.South, Extents.West, Extents.East,
true, aImageStore);
m_oQuadTileSet.AlwaysRenderBaseTiles = true;
m_oQuadTileSet.IsOn = m_IsOn;
m_oQuadTileSet.Opacity = m_bOpacity;
m_blnIsChanged = false;
}
return(m_oQuadTileSet);
}
internal ArcIMSImageDownload(ArcIMSImageStore oImageStore, Geosoft.Dap.Common.BoundingBox oEnvelope, int iIndexNumber, CultureInfo oInfo, double dArtificialZoom)
: base(oImageStore.ServerUri, iIndexNumber)
{
m_oCultureInfo = oInfo;
m_oImageStore = oImageStore;
m_oEnvelope = oEnvelope;
m_dArtificialZoom = dArtificialZoom;
}
internal ArcIMSDownloadRequest(IGeoSpatialDownloadTile oTile, ArcIMSImageStore oImageStore, string strLocalFilePath, CultureInfo oInfo)
: base(oTile, oImageStore, strLocalFilePath, oImageStore.ServerUri.ToBaseUri())
{
m_oCultureInfo = oInfo;
CalculateArtificialZoom();
}
internal override RenderableObject GetLayer()
{
if (m_blnIsChanged)
{
ImageStore[] aImageStore = new ImageStore[1];
aImageStore[0] = new ArcIMSImageStore(m_szServiceName, m_szLayerID, m_oServerUri as ArcIMSServerUri, TileSize, m_oCultureInfo, m_dMinScale, m_dMaxScale);
aImageStore[0].DataDirectory = null;
aImageStore[0].LevelZeroTileSizeDegrees = LevelZeroTileSize;
aImageStore[0].LevelCount = m_iLevels;
aImageStore[0].ImageExtension = ".png";
aImageStore[0].CacheDirectory = GetCachePath();
m_oQuadTileSet = new QuadTileSet(m_szTreeNodeText, m_oWorldWindow.CurrentWorld, 0,
Extents.North, Extents.South, Extents.West, Extents.East,
true, aImageStore);
m_oQuadTileSet.AlwaysRenderBaseTiles = true;
m_oQuadTileSet.IsOn = m_IsOn;
m_oQuadTileSet.Opacity = m_bOpacity;
m_blnIsChanged = false;
}
return m_oQuadTileSet;
}
